data sheet: belleta iea series –single output eighth brick … · iea48007a120v-000 typical input...

Data Sheet: Belleta® iEA Series –Single Output Eighth Brick

2_iEAFullDatasheet 032707_Low_Vout 12/18/2019Revision 2.0 1/41

Belleta® iEA Series DC/DC Power Modules48V Input, 25A Output

Eighth Brick

The Belleta Series offers an industry standardeighth brick power module with true useablepower. Thanks to its low component count andsingle-board open-frame design, it provides bothbetter electrical and thermal performance, andlower cost than many other suppliers’ eighth brickproduct offerings. Belleta® modules are perfectfor both next generation planning and costreduction design environments

Standard Features:

Size – 58.4mm x 22.9 mm x 8.8mm (2.3 in. x 0.9 in. x 0.347 in.)

Thru-hole pins 3.68 mm (0.145”) High efficiency – greater than 89% 1500Vdc isolation voltage Meets basic insulation spacing

requirements Constant switching frequency Industry Standard Footprint Output Voltage Adjustment Remote on/off (positive logic) Remote sense Auto-recovering output over-

voltage protection Auto-recovering output over-

current protection Auto-recovering output short circuit

protection Auto-recovering over-temperature

protection

UL 60950 (US and Canada), VDE0805, CB scheme (IEC950), CEMark (EN60950)

ISO Certified manufacturingfacilities

Patented Design

Optional Features:

Remote on/off (negative logic) Latching output over-voltage

protection Short Thru-hole pins 2.79 mm

(0.110”) Long Thru-hole pins 5.08 mm

(0.200”)



This page intentionally left blank.



Mechanical Specification:Dimensions are in mm [in]. Unless otherwise specified tolerances are: x.x 0.5 [0.02], x.xx and x.xxx 0.25 [0.010].

1.02 [0.040] DIA Pin2.03 [0.080] DIA Stand-Offs6 Pins

1.57 [0.062] DIA Pin2.59 [0.102] DIA Stand-Offs2 Pins

Recommended Hole Pattern: (top view)

1

2

3

87654

Pin Assignment:

PIN FUNCTION PIN FUNCTION

1 Vin(+) 4 Vo(-)

2 On/Off 5 Sense(-)

3 Vin(-) 6 Trim

7 Sense(+)

8 Vo(+)

Pin base material is brass with tin plating; the maximum module weight is 30.4g (1.07 oz).



Absolute Maximum Ratings:Stress in excess of Absolute Maximum Ratings may cause permanent damage to the device.

Input Characteristics:

Unless otherwise specified, specifications apply over all Rated Input Voltage, Resistive Load, and Temperature conditions.

Characteristic Min Typ Max Unit Notes & Conditions

Operating Input Voltage 36 48 75 Vdc

Maximum Input Current --- --- 4 A Vin = 0 to Vin,max

Turn-on Voltage --- 33 --- Vdc

Turn-off Voltage 26 30 --- Vdc

Hysteresis 0.5 3 --- Vdc

Startup Delay Time from application of inputvoltage

--- 35 --- mS Vo = 0 to 0.1*Vo,nom; on/off =on,Io=Io,max, Tc=25˚C

Startup Delay Time from on/off --- 35 --- mS Vo = 0 to 0.1*Vo,nom; Vin = Vi,nom,Io=Io,max,Tc=25˚C

Output Voltage Rise Time --- 50 --- mS Io=Io,max,Tc=25˚C, Vo=0.1 to 0.9*Vo,nom

Inrush Transient --- --- 0.2 A2s

Input Reflected Ripple --- 15 --- mApp See input/output ripple and noisemeasurements figure; BW = 20 MHz

Input Ripple Rejection --- 55 --- dB @120Hz

Caution: The power modules are not internally fused. An external input line normal blow fuse with amaximum value of 10A is required, see the Safety Considerations section of the data sheet.

Characteristic Min Max Unit Notes & Conditions

Continuous Input Voltage -0.5 80 Vdc

Transient Input Voltage --- 100 Vdc 100mS max.

Isolation Voltage --- 1500 Vdc

Storage Temperature -55 125 ˚C

Operating Temperature Range (Tc) -40 125 ˚C

Measured at the location specified in the thermalmeasurement figure. Maximum temperature varieswith model number, output current, and moduleorientation – see curve in thermal performancesection of the data sheet.



Electrical Data:

iEA48007A120V-000 through -015: 12V, 6.5A Output


Output Voltage Initial Setpoint 11.64 12 12.36 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 11.58 12 12.42 VdcOver all rated input voltage, load, andtemperature conditions to end of life

Efficiency --- 90.5 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Line Regulation --- 10 24 mV Vin=Vin,min to Vin,max

Load Regulation --- 10 24 mV Io=Io,min to Io,max

Temperature Regulation --- 60 240 mV Tc=Tc,min to Tc,max

Output Current 0.5 --- 6.5 AAt loads less than Io,min the module willcontinue to regulate the output voltage, butthe output ripple may increase

Output Current Limiting Threshold --- 8.5 --- A Vo = 0.9*Vo,nom, Tc<Tc,max

Short Circuit Current --- 12 --- A Vo = 0.25V, Tc = 25˚C

Output Ripple and Noise Voltage

--- 80 200mVpp

Measured across one 1.0 uF ceramiccapacitor and a 10uF tantalum capacitor –see input/output ripple measurement figure;BW = 20MHz--- 26 --- mVrms

Output Voltage Adjustment Range 90 --- 110 %Vo,nom

Output Voltage Sense Range --- --- 10 %Vo,nom

Dynamic Response:Recovery Time

Transient Voltage

---

---

60

220

---

---

uS

mV

di/dt = 0.1A/uS, Vin=Vin,nom; load stepfrom 50% to 75% of Io,max

Output Voltage Overshoot during startup --- --- 5 % Vin=Vin,nom; Io=Io,max,Tc=25˚C

Switching Frequency --- 400 --- kHz Fixed

Output Over Voltage Protection 13.6 --- 15.7 V

External Load Capacitance 0 --- 2000& uF

Isolation Capacitance --- 1000 --- pF

Isolation Resistance 10 --- --- MΩ

Vref 1.225 V Required for trim calculation

& Contact TDK - Lambda Americas for applications that require additional capacitance or very low esr



Electrical Characteristics:iEA48007A120V-000 through -015: 12V, 6.5A Output

iEA48007A120V-000 Typical Efficiency vs. InputVoltage at Ta=25 degrees.

iEA48007A120V-000 Typical Power Dissipation vs.Input Voltage at Ta=25 degrees



70

75

80

85

90

95

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Eff

icie

ncy,

(%)

Vin = 36V Vin = 48V Vin = 75V

0

2

4

6

8

10

12

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


70

75

80

85

90

95

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

14

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)




Electrical Characteristics (continued):iEA48007A120V-000 through -015: 12V, 6.5A Output

iEA48007A120V-000 Typical Output Voltage vs. LoadCurrent at Ta = 25 degrees

iEA48007A120V-001 Typical startup characteristic fromon/off at full load. Ch 1 - on/off signal, Ch 2 – outputvoltage

iEA48007A120V-000 Typical Output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS.

iEA48007A120V-000 Typical Output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS and 2200uF external load.

%Changeof Vout

TrimDownResistor(Kohm)

%Changeof Vout

Trim UpResistor(Kohm)

-5% 91.8K +5% 937K

-10% 40.8K +10% 488K

e.g. trim up 5%

Rup5.1 12 100 5( )

1.225 5

510

5 10.2

K

iEA48007A120V-000 Calculated resistor values foroutput voltage adjustment

11.64

11.74

11.84

11.94

12.04

12.14

12.24

12.34

0 0.7 1.4 2.1 2.8 3.5 4.2 4.9 5.6 6.3 7

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)




Electrical Characteristics (continued):iEA48007A120V-000 through -015: 12V, 6.5A Output

iEA48007A120V-000 Typical Output Current LimitCharacteristics vs. Input Voltage at Ta=25 degrees.

iEA48007A120V-000 Typical Output Ripple at nominalinput voltage and full load at Ta=25 degrees

iEA48007A120V-000 Typical Input Current vs. InputVoltage Characteristics

iEA48007A120V-000 Typical Output Voltage vs. InputVoltage Characteristics

0

2

4

6

8

10

12

14

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)

Io_min = 0A Io_mid = 3.3A Io_max = 6.5A

0

0.5

1

1.5

2

2.5

3

3.5

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Inp

ut

Cu

rre

nt

(A)


10

10.5

11

11.5

12

12.5

0 2 4 6 8 10 12

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)




Thermal Performance:iEA48007A120V-000 through -015: 12V, 6.5A Output

iEA48007A120V-000 maximum output current vs. ambienttemperature at nominal input voltage for airflow rates naturalconvection (60lfm) to 600lfm with airflow from pin 3 to pin 1.

iEA48007A120V-000 maximum output current vs.ambienttemperature at nominal input voltage for airflow rates naturalconvection (60lfm) to 600lfm with airflow from pin 1 to pin 3.

iEA48007A120V-000 thermal measurement location –top view

Both the thermal curves provided and the example given above are based upon measurements made in TDK - LambdaAmericas’ experimental test setup that is described in the Thermal Management section. Due to the large number ofvariables in system design, TDK - Lambda Americas recommends that the user verify the module’s thermal performancein the end application. The critical component should be thermo coupled and monitored, and should not exceed thetemperature limit specified in the derating curve above. It is critical that the thermocouple be mounted in a manner thatgives direct thermal contact or significant measurement errors may result. TDK - Lambda Americas can provide moduleswith a thermocouple pre-mounted to the critical component for system verification tests.

Thermal measurementlocation on PWB Cu

Best orientation

airflow

0

1

2

3

4

5

6

7

25 45 65 85 105 125

Temp erat ure ( o C )

NC

0.5 m/ s(100 LFM)

1.0 m/ s(200 LFM)

2.0 m/ s(400 LFM)

3.0 m/ s(600 LFM)

Tc, Thermal Limit

0

1

2

3

4

5

6

7

25 45 65 85 105 125

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit



Electrical Data:

iEA48015A050V-000 through -015: 5V, 15A Output


Output Voltage Initial Setpoint 4.92 5 5.08 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 4.85 5 5.15 VdcOver all rated input voltage, load, andtemperature conditions to end of life

Efficiency --- 90 --- % Vin=Vin,nom; Io=Io,max; Tc = 25˚C




Output Current 1 --- 15 AAt loads less than Io,min the module willcontinue to regulate the output voltage, butthe output ripple may increase

Output Current Limiting Threshold --- 20 --- A Vo = 0.9*Vo,nom, Tc<Tc,max



--- 55 125mVpp

Measured across one 0.1 uF ceramiccapacitor and a 22uF ceramic capacitor –see input/output ripple measurement figure;BW = 20MHz--- 7 --- mVrms




Transient Voltage

---

---

100

200

---

---

uS

mV


Output Voltage Overshoot during startup --- --- 250 mV Vin=Vin,nom; Io=Io,max,Tc=25˚C










Electrical Characteristics:iEA48015A050V-000 through -015: 5V, 15A Output





70

75

80

85

90

95

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


70

75

80

85

90

95

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)




Electrical Characteristics (continued):iEA48015A050V-000 through -015: 5V, 15A Output


iEA48015A050V-001 Typical startup characteristic fromon/off at full load. Ch4 - on/off signal, Ch 1 – outputvoltage

iEA48015A050V-000 Typical Output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS.

iEA48015A050V-000 Typical Output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS and 5000uF load.

%Changeof Vout


%Changeof Vout


-5% 91.8K +5% 325K

-10% 40.8K +10% 168K

e.g. trim up 5%

Rup5.1 5 100 5( )

1.225 5

510

5 10.2

K


4.95

4.96

4.97

4.98

4.99

5

5.01

5.02

5.03

5.04

5.05

1 2.4 3.8 5.2 6.6 8 9.4 10.8 12.2 13.6 15

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)




Electrical Characteristics (continued):iEA48015A050V-000 through -015: 5V, 15A Output





4.85

4.87

4.89

4.91

4.93

4.95

4.97

4.99

5.01

1 6 11 16 21 26

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)


0

0.5

1

1.5

2

2.5

3

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Inp

ut

Cu

rren

t(A

)

Io_min = 0.8A Io_mid = 7.5A Io_max = 15.1A

0

1

2

3

4

5

6

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)




Thermal Performance:iEA48015A050V-000 through -015: 5V, 15A Output





Best orientation

airflow

0

2

4

6

8

10

12

14

16

25 45 65 85 105 125

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit



Electrical Data:

iEA48020A033V-000 through -015: 3.3V, 20A Output


Output Voltage Initial Setpoint 3.25 3.3 3.35 Vdc Vin=Vin,nom; Io=Io,max; Tc = 25˚C

Output Voltage Tolerance 3.20 3.3 3.40 VdcOver all rated input voltage, load, andtemperature conditions to end of life





Output Current 1.5 --- 20 AAt loads less than Io,min the module willcontinue to regulate the output voltage, butthe output ripple may increase




--- 35 100mVpp


Output Voltage Adjustment Range 90 --- 110 %Vo,nomThe trim range is reduced to 105% whenthe input voltage is below 40V.

Output Voltage Sense Range --- --- 10 %Vo,nomThe sense range is reduced to 5% when theinput voltage is below 40V.


Transient Voltage

---

---

90

180

---

---

uS

mV





External Load Capacitance 100 --- 5000& uF Recommend TDK part C3225X5R0J107MT







Electrical Characteristics:iEA48020A033V-000 through -015: 3.3V, 20A Output





70

75

80

85

90

95

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


70

75

80

85

90

95

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)




Electrical Characteristics (continued):iEA48020A033V-000 through -015: 3.3V, 20A Output



iEA48020A033V-000 Typical output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS.

iEA48020A033V-000 Typical output voltage responseto load step from 50% to 75% of full load with outputcurrent slew rate of 0.1A/uS and 5000uF load.

%Changeof Vout


%Changeof Vout


-5% 91.8K +5% 176.3K

-10% 40.8K +10% 89.9K

e.g. trim up 5%

Rup5.1 3.3 100 5( )

1.225 5

510

5 10.2

K


3.25

3.27

3.29

3.31

3.33

3.35

1 2.9 4.8 6.7 8.6 10.5 12.4 14.3 16.2 18.1 20

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)









0

0.5

1

1.5

2

2.5

3

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Inp

ut

Cu

rren

t(A

)

Io_min = 1A Io_mid = 10A Io_max = 20A

0

0.5

1

1.5

2

2.5

3

3.5

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)

Io_min = 1A Io_mid = 10A Io_max = 20A

3.25

3.26

3.27

3.28

3.29

3.3

3.31

3.32

20 22 24 26 28 30 32

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)




Thermal Performance:iEA48020A033V-000 through -015: 3.3V, 20A Output






Best orientation

airflow

5

10

15

20

25

30 40 50 60 70 80 90 100 110 120 130

Temperature (C)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit

5

10

15

20

25

30 40 50 60 70 80 90 100 110 120 130

Temperature (C)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit



Electrical Data:













--- 35 100mVpp





Transient Voltage

---

---

100*

200*

---

---

uS

mV

















iEA48025A025V-000 Typical startup characteristicfrom input voltage application at full load. Ch3 - inputvoltage, Ch 1 – output voltage


70

75

80

85

90

95

0 2.51 5.02 7.53 10 12.6 15.1 17.6 20.1 22.6 25.1

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

14

0 2.51 5.02 7.53 10 12.6 15.1 17.6 20.1 22.6 25.1

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


2.46

2.47

2.48

2.49

2.5

2.51

2.52

2.53

2.54

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)


2.3

2.35

2.4

2.45

2.5

2.55

15 20 25 30 35

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)







%Changeof Vout


%Changeof Vout


-5% 91.8K +5% 106K

-10% 40.8K +10% 53.3K

e.g. trim up 5%

Rup5.1 2.5 100 5( )

1.225 5

510

5 10.2

K


0

0.5

1

1.5

2

2.5

3

27 31.8 36.6 41.4 46.2 51 55.8 60.6 65.4 70.2 75

Input Voltage (V)

Inp

ut

Cu

rren

t(A

)


0

0.5

1

1.5

2

2.5

3

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)

Io_min = 0A Io_mid = 12.6A

Io_max = 25.2A








Best orientation

airflow

0

5

10

15

20

25

30

25 45 65 85 105 125

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC 0.5 m/s (100 LFM)

1.0 m/s (200 LFM) 2.0 m/s (400 LFM)

3.0 m/s (600 LFM) Tc, Thermal Limit



Electrical Data:













--- 35 100mVpp





Transient Voltage

---

---

120

130

---

---

uS

mV


















iEA48025A018V-000 Typical transient response.Output voltage response to load step from 50% to 75%of full load with output current slew rate of 0.1A/uS.

70

72

74

76

78

80

82

84

86

88

90

2 4.3 6.6 8.9 11.2 13.5 15.8 18.1 20.4 22.7 25

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

2 4.3 6.6 8.9 11.2 13.5 15.8 18.1 20.4 22.7 25

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


1.77

1.78

1.79

1.8

1.81

1.82

1.83

2 4 7 9 11 14 16 18 20 23 25

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)









%Changeof Vout


%Changeof Vout


-5% 91.8K +5% 45.2K

-10% 40.8K +10% 21.2K

e.g. trim up 5%

Rup5.1 1.8 100 5( )

1.225 5

510

5 10.2

K


1.5

1.55

1.6

1.65

1.7

1.75

1.8

1.85

20 25 30 35

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)


0

0.5

1

1.5

2

2.5

26 31 36 41 46 51 55 60 65 70 75

Input Voltage (V)

Inp

ut

Cu

rren

t(A

)

Io_min = 1.8A Io_mid = 12.6A

Io_max = 25.2A

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

26 31 36 41 46 51 55 60 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)

Io_min = 1.8A Io_mid = 12.6A

Io_max = 25.2A








Best orientation

airflow

0

5

10

15

20

25

30

10 30 50 70 90 110 130

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC0.5 m/s (100 LFM)1.0 m/s (200 LFM)1.5 m/s (300 LFM)2.0 m/s (400 LFM)3.0 m/s (600 LFM)Tc, Thermal Limit



Electrical Data:













--- 30 100mVpp





Transient Voltage

---

---

120

85

---

---

uS

mV



















70

72

74

76

78

80

82

84

86

88

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


1.47

1.48

1.49

1.5

1.51

1.52

1.53

0 2.5 5 7.5 10 12.5 15 17.5 20 22.5 25

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)









%Changeof Vout


%Changeof Vout


-5% 91.8K +5% 18.9K

-10% 40.8K +10% 7.5K

e.g. trim up 5%

Rup5.1 1.5 100 5( )

1.225 5

510

5 10.2

K


1.4

1.42

1.44

1.46

1.48

1.5

1.52

25 27 29 31 33 35 37

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)


0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

27.0 31.8 36.6 41.4 46.2 51.0 55.8

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)


0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Inp

ut

Cu

rre

nt

(A)









Best orientation

airflow

0

5

10

15

20

25

30

25 45 65 85 105 125 145

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit



Electrical Data:













--- 45 100mVpp





Transient Voltage

---

---

175

100

---

---

uS

mV
















iEA48025A012V-001 Typical startup characteristic fromon/off at full load.Ch1-on/off signal, Ch3 –output voltage

iEA48025A012V-000 Typical startup characteristicfrom input voltage application at full load. Ch1 - inputvoltage, Ch3 – output voltage


70

72

74

76

78

80

82

84

86

1 3.4 5.8 8.2 10.6 13 15.4 17.8 20.2 22.6 25

Output Current (A)

Eff

icie

ncy,

(%)


0

2

4

6

8

10

12

1 3.4 5.8 8.2 10.6 13 15.4 17.8 20.2 22.6 25

Output Current (A)

Po

wer

Dis

sip

ati

on

(W)


1.18

1.185

1.19

1.195

1.2

1.205

1.21

1.215

1.22

1 3.4 5.8 8.2 10.6 13 15.4 17.8 20.2 22.6 25

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)









%Changeof Vout


%Changeof Vout


-5% 18K +5% 20K

-10% 8K +10% 10K

e.g. trim up 5%

Rup100

5

K


1

1.05

1.1

1.15

1.2

1.25

20 25 30 35

Output Current (A)

Ou

tpu

tV

olt

ag

e(V

)


0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Inp

ut

Cu

rre

nt

(A)


0

0.2

0.4

0.6

0.8

1

1.2

1.4

27 32 37 41 46 51 56 61 65 70 75

Input Voltage (V)

Ou

tpu

tV

olt

ag

e(V

)









Best orientation

airflow

0

5

10

15

20

25

30

25 45 65 85 105 125 145

Temperature (oC)

Ou

tpu

tC

urr

en

t(A

)

NC

0.5 m/s (100 LFM)

1.0 m/s (200 LFM)

2.0 m/s (400 LFM)

3.0 m/s (600 LFM)

Tc, Thermal Limit



Wind Tunnel Test Setup Figure Dimensions arein millimeters and (inches).

Thermal Management:

An important part of the overall systemdesign process is thermal management;thermal design must be considered at alllevels to ensure good reliability and lifetimeof the final system. Superior thermal designand the ability to operate in severeapplication environments are key elementsof a robust, reliable power module.

A finite amount of heat must be dissipatedfrom the power module to the surroundingenvironment. This heat is transferred by thethree modes of heat transfer: convection,conduction and radiation. While all threemodes of heat transfer are present in everyapplication, convection is the dominantmode of heat transfer in most applications.However, to ensure adequate cooling andproper operation, all three modes should beconsidered in a final system configuration.

The open frame design of the power moduleprovides an air path to individualcomponents. This air path improvesconvection cooling to the surroundingenvironment, which reduces areas of heatconcentration and resulting hot spots.

Test Setup: The thermal performance dataof the power module is based uponmeasurements obtained from a wind tunneltest with the setup shown in the wind tunnelfigure. This thermal test setup replicates thetypical thermal environments encountered inmost modern electronic systems withdistributed power architectures. Theelectronic equipment in networking, telecom,wireless, and advanced computer systemsoperates in similar environments and utilizesvertically mounted PCBs or circuit cards incabinet racks.

The power module, as shown in the figure,is mounted on a printed circuit board (PCB)and is vertically oriented within the windtunnel. The cross section of the airflowpassage is rectangular. The spacingbetween the top of the module and a parallelfacing PCB is kept at a constant (0.5 in).The power module’s orientation with respect

to the airflow direction can have a significantimpact on the module’s thermalperformance.

Thermal Derating: For proper application ofthe power module in a given thermalenvironment, output current derating curvesare provided as a design

guideline on the Thermal Performancesection for the power module of interest.The module temperature should bemeasured in the final system configurationto ensure proper thermal management ofthe power module. For thermal performanceverification, the module temperature shouldbe measured at the component indicated inthe thermal measurement location figure onthe thermal performance page for the powermodule of interest. In all conditions, thepower module should be operated below themaximum operating temperature shown onthe derating curve. For improved designmargins and enhanced system reliability, thepower module may be operated attemperatures below the maximum ratedoperating temperature.

AIRFLOW

Air Velocity and AmbientTemperatureMeasurement Location

AIRFLOW

12.7(0.50)

ModuleCenterline

Air PassageCenterline

Adjacent PCB

76 (3.0)



Heat transfer by convection can beenhanced by increasing the airflow rate thatthe power module experiences. Themaximum output current of the powermodule is a function of ambient temperature(TAMB) and airflow rate as shown in thethermal performance figures on the thermalperformance page for the power module ofinterest. The curves in the figures areshown for natural convection through 2 m/s(400 ft/min). The data for the naturalconvection condition has been collected at0.3 m/s (60 ft/min) of airflow, which is thetypical airflow generated by other heatdissipating components in many of thesystems that these types of modules areused in. In the final system configurations,the airflow rate for the natural convectioncondition can vary due to temperaturegradients from other heat dissipatingcomponents.

Operating Information:

Over-Current Protection: The powermodules have current limit protection toprotect the module during output overloadand short circuit conditions. During overloadconditions, the power modules may protectthemselves by entering a hiccup current limitmode. The modules will operate normallyonce the output current returns to thespecified operating range. There is a typicaldelay of 30mS from the time an overloadcondition appears at the module output untilthe hiccup mode will occur.

Output Over-Voltage Protection: Thepower modules have a control circuit,independent of the primary control loop thatreduces the risk of over voltage appearing atthe output of the power module during afault condition. If there is a fault in theprimary regulation loop, the over voltageprotection circuitry will cause the powermodule to enter a hiccup over-voltage modeonce it detects that the output voltage hasreached the level indicated on the ElectricalData section for the power module ofinterest. When the condition causing theover-voltage is corrected, the module willoperate normally.

An optional latching over-voltage protectionis available. On modules with this feature,the power module will shut down once itdetects that the output voltage has reachedthe level indicated on the Electrical Datasection for the power module of interest.The module remains off unless the inputvoltage is recycled.

Thermal Protection: When the powermodules exceed the maximum operatingtemperature, the modules may turn off tosafeguard the power unit against thermaldamage. The module will auto restart as theunit is cooled below the over temperaturethreshold. On modules with the latchingover-voltage protection feature, the unit maylatch off during a severe over temperaturecondition; the module remains off unless theinput voltage is recycled.

Remote On/Off: - The power modules havean internal remote on/off circuit. The usermust supply an open-collector or compatibleswitch between the Vin(-) pin and the on/offpin. The maximum voltage generated bythe power module at the on/off terminal is15V. The maximum allowable leakagecurrent of the switch is 50uA. The switchmust be capable of maintaining a low signalVon/off < 1.2V while sinking 1mA.

The standard on/off logic is positive logic.The power module will turn on if terminal 2 isleft open and will be off if terminal 2 isconnected to terminal 3. If the positive logiccircuit is not being used, terminal 2 shouldbe left open.

An optional negative logic is available. Thepower module will turn on if terminal 2 isconnected to terminal 3, and it will be off ifterminal 2 is left open. If the negative logicfeature is not being used, terminal 2 shouldbe shorted to terminal 3.



Vin(-)

On/ Off

Vin (+)

On/Off Circuit for positive or negativelogic

Output Voltage Adjustment: The outputvoltage of the power module may beadjusted by using an external resistorconnected between the Vout trim terminal(pin 6) and either the Sense (+) or Sense (-)terminal. If the output voltage adjustmentfeature is not used, pin 6 should be leftopen. Care should be taken to avoidinjecting noise into the power module’s trimpin. A small 0.01uF capacitor between thepower module’s trim pin and Sense (-) pinmay help avoid this.

Sense(+)

Vout(+)

Vout(-)

RdownTrim

Sense(-)

Circuit to decrease output voltage

With a resistor between the trim and Sense(-) terminals, the output voltage is adjusteddown. To adjust the output voltage down apercentage of Vout (%Vo) from Vo,nom, thetrim resistor should be chosen according tothe following equation:

For all outputs except 1.2V:

Rdown510

%Vo10.2

1000

For 1.2V output only:

Rdown100

%Vo2

1000

The current limit set point does not increaseas the module is trimmed down, so theavailable output power is reduced.

Sense(+)

Trim

Vout(-)

Sense(-)

Vout(+)

Rup

Circuit to increase output voltage

With a resistor between the trim and sense(+) terminals, the output voltage is adjustedup. To adjust the output voltage up apercentage of Vout (%Vo) from Vo,nom thetrim resistor should be chosen according tothe following equation:

For all outputs except 1.2V:

Rup5.1Vonom 100 %Vo( )

Vref %Vo

510

%Vo 10.2

1000

For 1.2V output only:

Rup100

%Vo

1000

The value of Vref is found in the ElectricalData section for the power module ofinterest. The maximum power availablefrom the power module is fixed. As theoutput voltage is trimmed up, the maximumoutput current must be decreased tomaintain the maximum rated power of themodule. As the output voltage is trimmed,the output over-voltage set point is notadjusted. Trimming the output voltage toohigh may cause the output over voltageprotection circuit to be triggered.



Remote Sense: The power modules featureremote sense to compensate for the effectof output distribution drops. The outputvoltage sense range defines the maximumvoltage allowed between the output powerterminals and output sense terminals, and itis found on the electrical data page for thepower module of interest. If the remotesense feature is not being used, theSense(+) terminal should be connected tothe Vo(+) terminal and the Sense (-)terminal should be connected to the Vo(-)terminal.

The output voltage at the Vo(+) and Vo(-)terminals can be increased by either theremote sense or the output voltageadjustment feature. The maximum voltageincrease allowed is the larger of the remotesense range or the output voltageadjustment range; it is not the sum of both.

As the output voltage increases due to theuse of the remote sense, the maximumoutput current must be decreased for thepower module to remain below its maximumpower rating.

EMC Considerations: TDK - LambdaAmericas’ power modules are designed foruse in a wide variety of systems andapplications. For assistance with designingfor EMC compliance, please contact TDK -Lambda Americas’ technical support.

Input Impedance:The source impedance of the power feedingthe DC/DC converter module will interactwith the DC/DC converter. To minimize theinteraction, a 10-100uF input electrolyticcapacitor should be present if the sourceinductance is greater than 1.5uH.

Reliability:

The power modules are designed using TDK- Lambda Americas’ stringent designguidelines for component derating, productqualification, and design reviews. Earlyfailures are screened out by both burn-inand an automated final test. The MTBF iscalculated to be greater than 4.8M hours atfull output power and Ta = 40˚C using the Telcordia SR-332 calculation method.

Improper handling or cleaning processescan adversely affect the appearance,testability, and reliability of the powermodules. Contact TDK - Lambda Americas’technical support for guidance regardingproper handling, cleaning, and soldering ofTDK - Lambda Americas’ power modules.

Quality:

TDK - Lambda Americas’ productdevelopment process incorporatesadvanced quality planning tools such asFMEA and Cpk analysis to ensure designsare robust and reliable. All products areassembled at ISO certified assembly plants.



Input/Output Ripple and Noise Measurements:

100KHz

VoutputCext

12

+

12uH1 2

esr<0.7

Battery

100KHz

+RLoad

12esr<0.1

-

Vinput220uF

12

Ground Plane

33uF

12 -

The input reflected ripple is measured with a current probe and oscilloscope. The ripplecurrent is the current through the 12uH inductor.

The output ripple measurement is made approximately 9 cm (3.5 in.) from the power moduleusing an oscilloscope and BNC socket. The capacitor Cext is located about 5 cm (2 in.) fromthe power module; its value varies from code to code and is found on the electrical data pagefor the power module of interest under the ripple & noise voltage specification in the Notes &Conditions column.

Safety Considerations:

For safety agency approval of the system inwhich the DC-DC power module is installed,the power module must be installed incompliance with the creepage and clearancerequirements of the safety agency. Theisolation is basic insulation. Forapplications requiring basic insulation, caremust be taken to maintain minimumcreepage and clearance distances whenrouting traces near the power module.

As part of the production process, the powermodules are hi-pot tested from primary andsecondary at a test voltage of 1500Vdc.

To preserve maximum flexibility, the powermodules are not internally fused. Anexternal input line normal blow fuse with amaximum value of 10A is required by safetyagencies. A lower value fuse can beselected based upon the maximum dc inputcurrent and maximum inrush energy of thepower module.

When the supply to the DC-DC converter isless than 60Vdc, the power module meetsall of the requirements for SELV. If theinput voltage is a hazardous voltage thatexceeds 60Vdc, the output can beconsidered SELV only if the followingconditions are met:

1) The input source is isolated from theac mains by reinforced insulation.

2) The input terminal pins are notaccessible.

3) One pole of the input and one poleof the output are grounded or bothare kept floating.

4) Single fault testing is performed onthe end system to ensure that undera single fault, hazardous voltagesdo not appear at the module output.

Warranty:TDK - Lambda Americas’ comprehensiveline of power solutions includes efficient,high-density DC-DC converters. TDK -Lambda Americas offers a three-year limitedwarranty. Complete warranty information islisted on our web site or is available uponrequest from TDK - Lambda Americas.



Information furnished by TDK - Lambda Americas is believed to be accurate and reliable. However, TDK - Lambda Americas

assumes no responsibility for its use, nor for any infringement of patents or other rights of third parties, which may result from its

use. No license is granted by implication or otherwise under any patent or patent rights of TDK - Lambda Americas. TDK -

Lambda Americas’ components are not designed to be used in applications, such as life support systems, wherein failure or

malfunction could result in injury or death. All sales are subject to TDK - Lambda Americas’ Terms and Conditions of Sale, which

are available upon request. Specifications are subject to change without notice.

For Additional Information, please visit https://product.tdk.com/info/en/products/power/index.html

data sheet: belleta iea series –single output eighth brick … · iea48007a120v-000 typical input...

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