si890x igital isolator-based, 10-bit …...si890x-pwr-evb rev. 1.1 7 c.the serial port pins for the...

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Rev. 1.1 10/12 Copyright © 2012 by Silicon Laboratories Si890x-PWR-EVB Si890x-PWR-EVB Si890 X D IGITAL I SOLATOR -B ASED , 10-B IT I SOLATED M ONITORING ADC U SER S G UIDE 1. Introduction The Si890x are isolated ADCs suitable for low-frequency analog data acquisition applications. These devices integrate an isolated 10-bit SAR ADC with I 2 C, UART, or SPI serial communication ports. Isolation ratings of 2.5 or 5 kV are available. See the Si8900 data sheet for details. 2. Kit Contents The Si890xPWR-EVB Evaluation kit contains the following items: Si890xPWR-EVB evaluation module containing: High voltage 110 V/220 V ac line current and voltage measurement circuit with 3.3 Vpp analog output signals Si8900 Isolated 10-bit ADC with UART serial port Si8901 Isolated 10-bit ADC with I 2 C serial port Si8902 Isolated 10-bit ADC with SPI serial port C8051F007 mixed-signal MCU master controller AC line-side bias supply 2.1. Hardware Overview The Si890xPWR-EVB (Figure 1) demonstrates 50/60 Hz ac line voltage and current measurements. This EVB is housed in a plastic case with recessed connectors to protect against user electrical shock. The Si890x accepts a 110 or 220 Vac input and supports load currents up to 10 A (max). The on-board line side circuit interface measures ac voltage and current, which is then digitized by the Si890x on-chip 10-bit ADC. The resulting converted data is then transmitted through the output side isolated serial port to the on-board master processor (C8051F007 MCU). The C8051F007 converts the serial data back to analog format where it is available to the user at the low- voltage side of the evaluation module. Key features for this EVB include the following: EVB module measures ac line voltage (110 Vac or 220 Vac at 50/60 Hz) and ac line current (10 A max) 10-bit ADC with three input channels and selectable, isolated serial ports: UART (Si8900) or I 2 C (Si8901) or SPI (Si8902) High common mode transient immunity (CMTI): 35 kV/μs (min), 50 kV/μs (typ) Industrial temperature operating range (–40 to +85 ° C) 60-year isolation barrier life at rated working voltage Safety certified (pending) CSA component notice 5A approval IEC 60950, 61010, 60601 VDE/IEC 60747-5-2 UL1577 recognized: (Up to 5 kVrms for 1 minute) Danger! High Voltage: Read instructions carefully. Do not operate this evaluation board unless it is housed in its plastic case and secured by the four screws.

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Rev. 1.1 10/12 Copyright © 2012 by Silicon Laboratories Si890x-PWR-EVB

Si890x-PWR-EVB

Si890X DIGITAL ISOLATOR-BASED, 10-BIT ISOLATED MONITORING ADC USER’S GUIDE

1. Introduction

The Si890x are isolated ADCs suitable for low-frequency analog data acquisition applications. These devicesintegrate an isolated 10-bit SAR ADC with I2C, UART, or SPI serial communication ports. Isolation ratings of 2.5 or5 kV are available. See the Si8900 data sheet for details.

2. Kit Contents

The Si890xPWR-EVB Evaluation kit contains the following items:

Si890xPWR-EVB evaluation module containing:High voltage 110 V/220 V ac line current and voltage measurement circuit with 3.3 Vpp analog output signalsSi8900 Isolated 10-bit ADC with UART serial port

Si8901 Isolated 10-bit ADC with I2C serial port Si8902 Isolated 10-bit ADC with SPI serial port C8051F007 mixed-signal MCU master controllerAC line-side bias supply

2.1. Hardware OverviewThe Si890xPWR-EVB (Figure 1) demonstrates 50/60 Hz ac line voltage and current measurements. This EVB ishoused in a plastic case with recessed connectors to protect against user electrical shock. The Si890x accepts a110 or 220 Vac input and supports load currents up to 10 A (max). The on-board line side circuit interfacemeasures ac voltage and current, which is then digitized by the Si890x on-chip 10-bit ADC. The resulting converteddata is then transmitted through the output side isolated serial port to the on-board master processor (C8051F007MCU). The C8051F007 converts the serial data back to analog format where it is available to the user at the low-voltage side of the evaluation module.

Key features for this EVB include the following:

EVB module measures ac line voltage (110 Vac or 220 Vac at 50/60 Hz) and ac line current (10 A max)

10-bit ADC with three input channels and selectable, isolated serial ports: UART (Si8900) or I2C (Si8901) or SPI (Si8902)

High common mode transient immunity (CMTI): 35 kV/µs (min), 50 kV/µs (typ)

Industrial temperature operating range (–40 to +85 °C)

60-year isolation barrier life at rated working voltage

Safety certified (pending)CSA component notice 5A approvalIEC 60950, 61010, 60601VDE/IEC 60747-5-2UL1577 recognized: (Up to 5 kVrms for 1 minute)

Danger! High Voltage: Read instructions carefully. Do not operate this evaluation board unless it ishoused in its plastic case and secured by the four screws.

Si890x-PWR-EVB

2 Rev. 1.1

Figure 1. Si890xPWR-EVB Block Diagram

Figure 2. Si890xPWR-EVB Circuit Board and Plastic Housing

Figure 2 shows photographs of the EVB circuit board and plastic housing. Note the location of the Si8900, Si8901,and Si8902 ICs, which are centered between the two isolated ground planes. The ac input barrier strip (TB-1,bottom side of board) is recessed to provide an extra margin of space between the housing exterior and the ac lineconnection.

Safety Warning: The board MUST remain in the plastic enclosure whenever the ac line voltage is connected to the Si890x input terminals.

C8051F007 Debug Connector

AC HV Interface

Isolation

 Barrier

C8051F007MCU

Output 

Connecto

r

Jumper Se

lectio

nOptio

ns

Si890xPWR‐EVB(Topside)

Atte

nuators

ac in

ac out

Line

Load

AC In

put C

onnecto

r

Voltage Measurement

Current Measurement

dc Bias 

JumperSelectionOptions

Si8900

Si8902

Si8901

Si890x-PWR-EVB

Rev. 1.1 3

3. Required Equipment

One dc regulated power supply capable of generating 2.7 V to 3.6 Vdc at 200 mA.

Small hand tools: soldering iron, wire cutters, needle-nose pliers, wire stripper, screwdrivers.

Minimum two-channel oscilloscope.

22-gauge stranded wire for low-voltage signal connector P1.

A suitable ac load (e.g., power resistor, lamp with or without dimmer, max current of 10 A).

AC line cord wire (Note: wire gauge depends on the amount of current to be measured).

Optional line-side external dc supply input. Use only if the EVB is connected to a low-voltage (5 V or less) line-side device instead of the ac line).

Si890x-PWR-EVB

4 Rev. 1.1

4. EVB Factory Jumper Configuration

Figure 3. EVB Default (Factory) Jumper Settings

Table 1. Factor Jumper Settings

Item Function Settings Comments

J1 Master MCU debug connector None User can optionally modify Master MCU firmware*

J2 ADC channel 1 analog input 5-6 Si8900 ADC channel AIN1 measures ac line voltage

J3 3.3 V bias voltage 5-6 3.3 V bias voltage connected to Si8900

J4 ADC channel 0 analog input 5-6 Si8900 ADC channel AIN0 measures ac line voltage

J5 ADC channel 2 analog input No Jumper Not Used

J6 Master MCU RESET input No Jumper Adding a jumper disables master MCU, customer master uses serial ports

J7 Output connector P1 pin D0 assignments

1-2 Si8900 UART Rx input assigned to P1 pin D0

J8 Output connector P1 pin D1 assignments

1-2 Si8900 UART Tx output assigned to P1 pin D1

J11 110 Vac or 220 Vac line voltage select

No Jumper 110 Vac line voltage selected

J12 3.3 V bias voltage 1-2 3.3 V bias voltage generated from ac line(no jumper = VDD coming from TB-1, pin 4)

J24 For future use 1-2 For future use

*Note: Requires C8051F005 MCU Development Kit

C8051F007 Debug Connector

TB1

J24

J8

J6

J12

J5

J4

J3

J2

J11

Si8900

Si8901

Si8902

J1

1 2

3 4

5 6

1 2

3 4

5 6

1 2

3 4

5 6

1 2

3 4

5 6

1 2

3 4

5 6

1

2

1

2

1

2

1 2P1

J

J

J

J

JJ

J7

1 2

3 4

5 6

J

U5

U3

U4

Si890x-PWR-EVB

Rev. 1.1 5

Table 2. User Jumper Options

Item Pins 1–2 Pins 3–4 Pins 5–6

J2 Connects ac current signal to U3, AIN1

Connects ac current signal to U5, AIN1

Connects ac current signal to U4, AIN1

J3 Connects 3.3 V bias to U5, VDDA Connects 3.3 V bias to U3, VDDA Connects 3.3 V bias to U4, VDDA

J4 Connects ac line voltage signal to U5, AIN0

Connects ac line voltage signal to U3, AIN0

Connects ac line voltage signal to U4, AIN0

J5 Connects external AIN2 to U5, AIN2

Connects external AIN2 to U3, AIN2

Connects external AIN2 to U4, AIN2

J6 Holds master MCU in reset N/A N/A

J7 Connects UART Rx to D0 output header

Connects I2C port SCL to D0 out-put header

Connects SPI port SD0 to D0 out-put header

J8 Connects UART Tx to D1 output header

Connects I2C port SDA to D1 out-put header

Connects SPI port SCLK to D1 output header

J11 Jumper when using 220 Vac input (no jumper for 110 V)

N/A N/A

J12 Jumper if using on-board VDDA supply (no jumper for external

3.3 V bias)

N/A N/A

Si890x-PWR-EVB

6 Rev. 1.1

5. Hardware Setup and Demo

Safety Warning: Remove power from the board before proceeding!

Setting-up the Si890xPWR-EVB evaluation module requires configuring the jumper options, then connecting theinput and output cables with the ac line disconnected and the external dc power supply off. EVB setup andconfiguration is as follows:

1. Remove the four screws from the bottom of the EVB plastic enclosure and remove the top cover.

2. The default factory EVB settings enable the Si8900 (UART). Verify the factory jumper option settings using Table 1 (use Figure 3 to locate the configuration headers). If so desired, the Si8901 or Si8902 can be selected instead of the Si8900 by following the instructions in Paragraph 3. Otherwise, skip to paragraph 4.

3. Configuring an Isolated ADC:

a.Choose the isolated ADC to be enabled (Note that only one ADC can be in service at a time).

b.Headers J2, J3 and J4 route the ac line-side VDD, AIN0, and AIN1 corresponding pins of the desired Si890x device (Input AIN0 typically measures line input voltage, and AIN1 typically measures ac line current). For example, if the Si8902 is the device to be used, insert shorting jumpers between pins 1 and 2 on headers J2, J3, and J4 as shown in the “Selecting Si8902” drawing of Figure 4. Configurations for selecting the Si8900 and Si8901 are also shown in Figure 4.

Figure 4. Si890x Input Configuration Jumpers

Selecting Si8900

             6

J4

J3

J2

Si8900

Si8901

Si8902

Selecting Si8901

J4

J3

J2

Si8900

Si8901

Si8902

Selecting Si8902

J4

J3

J2

Si8900

Si8901

Si8902

AIN0

VDD

AIN1

1

3

5

2

4

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

1

3

2

4

5 6

AIN0

VDD

AIN1

AIN0

VDD

AIN1

Si890x-PWR-EVB

Rev. 1.1 7

c.The serial port pins for the selected Si890x device are routed to output connector P1 by configuring headers J7 and J8 as shown in Figure 5.1. If using the Si8900, install shorting jumpers on pins 1 and 2 on both J7 and J8.2. If using the Si8901, install shorting jumpers on pins 5 and 6 on both J7 and J8.3. If using the Si8902, install shorting jumpers on pins 3 and 4 on both J7 and J8.

Figure 5. Configuring Output Connector P1

4. Locate the six-screw ac line terminal block (TB1) on the right side of the circuit board. With the ac line disconnected from the outlet, loosen the screws on TB1 corresponding to AC_H and GNDA, as shown in Figure 6. Strip 1/4 inch of insulation from the “hot side” of the ac wire and insert the wire through the enclosure opening and into the AC_H terminal block opening. Be sure there is no bare wire exposed. Tighten the screw on the terminal block to secure the AC_H wire. Repeat this procedure for the GNDA wire connection to TB1.

5. Locate the ac output (load) terminals AC_OUT and AC_H on TB1 as shown in Figure 6. With the ac line disconnected from the outlet, loosen the screws on TB1 corresponding to AC_OUT and AC_H, as shown in Figure 3. Strip 1/4 inch of insulation from the “hot side” of the ac wire and insert the wire through the enclosure opening and into the AC_H terminal block opening. Be sure there is no bare wire exposed. Tighten the screw on the terminal block to secure the AC_H wire. Repeat this procedure for the AC_OUT wire connection to TB1.

Configuring P1

J7

J8

Rx

1

3

5

2

4

6

SDO

SCL

To P1 D0

Tx

SCLK

SDA

Example:  Si8900 Rx pin is routed to the D0 pin of P1, and Tx is routed to the D1 pin of P1 when connected as shown.

To P1 D1

3

5

4

6

1 2

1 2

Si890x-PWR-EVB

8 Rev. 1.1

Figure 6. AC Line and Load Connections to Barrier Strip TB1 (Top of Board View)

6. Connect the loose ends of the AC_OUT and AC_H wires from TB1 to the load (e.g. power resistor, lamp, etc.).

7. Replace the top cover of the enclosure and secure with four screws. Examine the ac line side of the enclosure and verify that the ac lines external to the enclosure have no bare wire exposed.

8. Locate the male connector that mates to output side connector P1 (see Figure 5) and test fit to connector to P1. Remove the connector from P1. Cut nine equal lengths of AWG28 wire, each one eight inches long. Strip 1/4 inch of insulation from each end of all eight wires. Solder one end of each wire to each wire to the male connector. When soldering is complete, plug the male connector into P1.

9. Obtain an external adjustable power supply (bench or lab supply), but do not connect it to the Si890x EVB yet. With no load attached, turn the power supply on and set the output to 3.3 V. Turn the power supply off and discharge its outputs by shorting the positive and negative terminals together.

10.Connect the dc supply outputs to the VDDB and GNDB input pins of P1, as shown in Figure 7.

11.Turn the oscilloscope on and connect oscilloscope probes to the DAC0 and DAC1 output pins of P1, as shown in Figure 7.

Figure 7. Low Voltage Connections to Output Connector P1

TB1

AC_OUT AC_H 3.3V AIN2 AC_H GNDA

AC LineOutput Load

Hot Side

Neutral

Nine‐Pin Connector (End View)

5

2

6

31

4

8 97

PCB

     2                GNDB     3                 D0     4                 D1     5                 SDI     6                /EN     7               DAC0     8               DAC1

     9             Not Used

     1                VDDB

  PIN#        FUNCTION

Si890x-PWR-EVB

Rev. 1.1 9

12.Turn on the oscilloscope and plug the ac input lines into a source of 110/220 Vac, then turn on the external dc power supply. With the load engaged, the voltage (blue) and current (yellow) waveforms will appear on the oscilloscope as shown in Figure 8. Vary the load to observe the changes in current.

13.To power the EVB down, first unplug the ac line connection then turn the external dc power supply off.

Figure 8. AC Voltage (Blue) and Current (Yellow) Waveform from Analog Output of the Master Controller (C8051F007) as Displayed on the Oscilloscope

10 Rev. 1.1

Si890x-PWR-EVB

6. Schematics

Figure 9. Measurement Circuits

1

2

3

4

5

6

GNDA

AC_OUT

3.3 V

AC_H

AN2

TB1

AC_OUT

R150.01

R160.01

R170.01

GNDA

R18

2K

R19

2K

CURRENT SENSING

VOLTAGE SENSING

SP1

IC2

UART

R1

100 K

R2

100 K

R3

100 K

R4

100 K

R5

100 K

AC_H

+_

+_+INPUT1

-INPUT1

+INPUT2

-INPUT2

VCC

OUTPUT1

OUTPUT2

VCC

GNDA

3

2

5

6

8

1

7

4

U6MC33272AD

R22

10 K

TP1

TP2

TP3

GNDA

R2110 K

C5COG

100 PFR20

33.2 K

GNDA

C6X7R0.1 PF

C7X7R0.1 PF

3.3 VL5VREF

R24

100 C8COG

100 PF

GNDA

R2333.2 K

C15COG

100 PF

GNDA

R1110 K

3.3 V

10 K

R12

R104.99 K

1.5 VREF

GNDA

R64.02 K

R74.02 K

R8

499 K

R9

499 K

J11

TP4SHORTING JUMPER 1X2

J23

C1 C2 C3 C4

X75 X75 X75 X754.7 UF 4.7 UF 4.7 UF 4.7 UF

R26 R27

75 75

TP9

C24X7R

1200 PF

R13499 K

R14

100

TP5

C16COG

100 PF

GNDA

AN2J5

J4

J3

J2

C13X7R

1.0 UF

GNDA

12345678

161514131211109

VDDA

NCVREFAIN0AIN1AIN2GNDA

RST

GNDBVDDB

ENSDI

SCLKSDO

NCVDDB

R39 2K SDOSCLKSDI

C14X7R

1.0 UF

GNDB

VDDBU5SI8902AD-AD0-GS

EN

161514131211109

VDDA

AIN0AIN1AIN2

GNDA

VREF

GNDBVDDB

SDASCLNCNC

VDDB

U4SI8901AD-AD0-GS

NC

12345678

RSTRSDA

R36R26

2K4.99K

SCLSDA

VDDB

C12X7R

1.0 UF

GNDB

TP8

GNDA

C9X7R

1.0 UF

3.3VGNDA

R37 2K

C9X7R

1.0 UF

1

45678

VDDA

AIN0AIN1AIN2

GNDA

VREF

GNDBVDDB

TXRXNCNC

VDDB

NCRSTNC

161514131211109

23

RXTX

VDDB

GNDB

C11X7R

1.0 UF

U3SI8900AD-AD0-GS

12

U7DIODE PLVA662A

A

NC

C3

C25X7R

100 UFC22X5R

100 UF

2A

1C

TP7Z1

1N5B19HW-7-F

GNDA

R28

2K

1 2

D1RED

1

2

3

VIN

GND

SHDIN BYPASS

VOUT

4

5

C26NP0470 PF

C23X7S100 UF

GNDA

U2TC1014-2.7VCT713

TP63.3 V

J12 J22

SHORTING JUMPER 1X2

SHORTING JUMPER 1X2

SHORTING JUMPER 1X2 SHORTING JUMPER 1X2

SHORTING JUMPER 1X2

J9 J10

J19J18

Si890x-PWR-EVB

Rev. 1.1 11

Figure 10. Master Controller Circuit

P1 – A1

P1 – A2

P1 – A3

VDDB

GND8

D0

P1 – B1

P1 – B2

P1 – B3

D1

SDI

EN

CONN-SSW-103-02-G-T-RA

P1 – C1

P1 – C2

P1 – C3

DAC0

DAC1

J7

D0

SCL

SD0RX

SHORTING JUMPER 1X2

J13

SHORTING JUMPER 1X2

J14

SHORTING JUMPER 1X2

J15

J8

D1

SDA

SCLKTX

CP0 _

CP0+VREFAIN0AIN1AIN2AIN3AGND

12345678

C8051F007-GQ

U1

DGND

DGND

P0.3P0.2P0.1

VDD

VDDP0.0

SD0SCLK

SCL

SDA1718192021222324

9 10 11 12 13 14 15 16

AV

+X

TA

L1X

TA

L2R

ST

TM

ST

CK

TD

IT

DO

31 30 29 28 27 26 2532

DAC0DAC1TXRXSDI

VDDB

DA

C0

DA

C1

AG

ND

AV

+P

0.7

P0.

6P

0.5

P0.

4

GNDB

GNDB

VDDB

R314.75 k

R324.75 k

VDDB

VDDB

VDDB

VDDB

VDDB

GNDB

R332 k

GNDB

810

642

79

531

HDR2X5 SHROUDED

VDDBJ1

DEBUG

R294.75 k

Y124.576 MHz

C19X5R

33 pF

C20COG33 pF

GNDB

GNDB

C21X7R

1.0 µFJ6

R4010 k

C17X5R

4.7 µF

C18X7R

0.1 µF

1 2

02RED

R30100k

GNDB

J24

R36100 k

R35100 k

R34100 k

SHORTING JUMPER 1X2

J25

12 Rev. 1.1

Si890x-PWR-EVB

7. Bill of Materials

Table 3. Si890xPWR Bill of Materials*

Item Quantity Reference Part Number Source Description

1 1 U1 C8051F007-GQ Silicon Labs MIXED SIGNAL 32 kB ISP FLASH, MCU, LQFP32-7X7, RoHS

2 2 C6 C18 399-1282-1-ND CAP, 0.1 µF, X7R, CERAMIC, 0603, 25 V, ±5%, or EQ, RoHS

3 8 C7,9-14,21 490-3899-1-ND CAP CERAMIC, 1.0 µF, X5R, 0603, 10 V, ±10%, RoHS.

4 4 C5,8,15,16 478-1175-1-ND CAP, 100 pF, C0G, CERAMIC, 0603, 50 V, ±5%, or EQ, RoHS.

5 2 C22 C25 445-1437-1-ND CAP, 100 µF, X5R, CERAMIC, 1210, 6.3 V , ±20%, or EQ, RoHS.

6 1 C23 445-4536-1-ND CAP, 10 µF, X7S, CERAMIC, 1210, 100 V, ±10%, RoHS.

7 1 C24 PCC122BNCT-ND CAP CERAMIC, 1200 pF, X7R, 0805, 50 V , ±10%, or EQ, RoHS.

8 2 C19-20 PCC330CGCT-ND CAP, 33 pF, NPO,CERM, 0805, 50 V, ±5%, or EQ, RoHS.

9 1 C17 PCC2318CT-ND CAP, 4.7 µF, X5R, CERAMIC, 0603, 6.3 V, ±20%, or EQ, RoHS.

10 4 C1-4 445-5211-1-ND CAP, 4.7 µF, X7S, CERAMIC, 1812, 100 V, ±10%, RoHS.

11 1 C26 0603CG471G9B200-ND CAP, 470 pF, NP0, CERAMIC, 0603, 50 V, ±2%, or EQ, RoHS.

12 1 P1 SSW-103-02-G-T-RA CONN, 3X3-RA, RoHS

13 1 Z1 1N5819HW-FDICT-ND DIODE SCHOTTKY, 40 V, 1A, SOD123, RoHS.

*Note: All components on this BOM are Lead Free.

Si890x-PWR-EVB

Rev. 1.1 13

14 1 U7 PLVA662A,215-ND DIODE ZENER 6.2 V 250 mW, SOT-23, RoHS.

15 4 J6,11,12,24 S1011E-02-ND STAKE HEADER, 1X2, 0.1"CTR, GOLD, OR EQ, RoHS.

16 6 J2-5 7-8 S2011E-03-ND STAKE HEADER, 2X3, 0.1"CTR, GOLD, OR EQ, RoHS.

17 1 J1 MHC10K-ND HEADER, SHROUDED, 2X5, OR EQ, RoHS.

18 2 D1-2 350-1555-ND LED RED, T1, 3 mm, 2.0 V, DIFF DBL-FLANGE, or EQ, RoHS.|

19 1 U6 MC33272ADR2GOSCT-ND

OPAMP, DUAL, HI SPEED, 8SOIC, RoHS.

20 3 R15-17 985-1197-1-ND RES, 0.01 , 1.0 W, 2010, 1%, SMD, or EQ, RoHS.

21 2 R14 R24 P100ACT-ND RES, 100 , SMT, 0805,1/8W, ±5%, or EQ, RoHS.

22 4 R30,34-36 P100KACT-ND RES, 100 k, SMT, 0805, 1/8W, ±5%, or EQ, RoHS.

23 5 R1-5 541-100KUCT-ND RES, 100 k, SMT, 1206, 1/2W, ±1%, or EQ, RoHS.

24 5 R11-12,21-22,40 P10.0KCCT-ND RES, 10.0 k, SMT, 0805, 1/8W, ±1%, or EQ, RoHS.

25 7 R18-19,28,33,37-39 311-2.0kARCT-ND RES 2 k, SMT, 0805, 1/8W, ±5%, or EQ, RoHS.

26 2 R20 R23 RT0805FRE0733K2L-ND RES, 33.2 k, SMT, 0805, 1/8W, ±1%, or EQ, RoHS.

Table 3. Si890xPWR Bill of Materials*

Item Quantity Reference Part Number Source Description

*Note: All components on this BOM are Lead Free.

14 Rev. 1.1

Si890x-PWR-EVB

27 2 R6-7 311-4.02KCRCT-ND RES, 3.85 k, SMT, 0805, |1/8W, ±1%, or EQ, RoHS.

28 3 R29,31-32 P4.75KCTR-ND RES, 4.75 k , SMT, 0805, |1/8W, ±1%, or EQ, RoHS.

29 1 R25 P4.99KCCT-ND RES, 4.99 k, SMT, 0805, 1/8W, ±1%, or EQ, RoHS.|

30 4 R8-10 R13 P499KCCT-ND RES, 499 k, SMT, 0805, 1/8W, ±1%, or EQ, RoHS.

31 2 R26-27 RHM75ERCT-ND RES, 75 , SMT, 1206, 1/4W, ±5%, OR EQ, RoHS.

32 1 J9-10,13-15,18-19,22-23,25

S9001-ND CONN, JUMPER SHORTING, TIN, OR EQ, RoHS. (INSERT AFTER TEST)

33 1 U3 Si8900AD-A00-GS Silicon Labs IC, ISOLATED MONITORING ADC, RoHS.|

34 1 U4 Si8901AD-A00-GS Silicon Labs IC, ISOLATED MONITORING ADC, RoHS.

35 1 U5 Si8902AD-A00-GS Silicon Labs IC, ISOLATED MONITORING ADC, RoHS.

36 1 U2 TC10143.3VCT713CT-ND IC, CMOS, LDO, 3.3 V, 50 MA, SOT23-5, RoHS.

37 9 TP1-9 NO POP TEST POINT, WIRE WRAP VIA, OR EQ, RoHS.

38 1 TB1 277-1251-ND TERM. BLOCK, 5.08 mm CTRS, 6 POS, RoHS.

39 1 Y1 CTX092-ND CRYSTAL, 24.576 MHz SERIES, RoHS.

Table 3. Si890xPWR Bill of Materials*

Item Quantity Reference Part Number Source Description

*Note: All components on this BOM are Lead Free.

Si890x-PWR-EVB

Rev. 1.1 15

8. Ordering Guide

Table 4. Product Ordering Information1,2,3

Part Number (OPN) Serial Port Package Isolation Rating Temp Range

Si8900B-A01-GS UART WB SOIC 2.5 kV –40 to +85 °C

Si8900D-A01-GS UART WB SOIC 5.0 kV –40 to +85 °C

Si8901B-A01-GS I2C/SMBus WB SOIC 2.5 kV –40 to +85 °C

Si8901D-A01-GS I2C/SMBus WB SOIC 5.0 kV –40 to +85 °C

Si8902B-A01-GS SPI Port WB SOIC 2.5 kV –40 to +85 °C

Si8902D-A01-GS SPI Port WB SOIC 5.0 kV –40 to +85 °C

Notes:1. Add an “R” suffix to the part number to specify the tape and reel option. Example: “Si8900AB-A-ISR”.2. All packages are RoHS-compliant.3. Moisture sensitivity level is MSL3 for wide-body SOIC-16 package with peak reflow temperatures of 260 °C according

to the JEDEC industry standard classifications and peak solder temperatures.

Si890x-PWR-EVB

16 Rev. 1.1

DOCUMENT CHANGE LIST

Revision 1.0 to Revision 1.1 Updated Figure 7 on page 8.

Si890x-PWR-EVB

Rev. 1.1 17

NOTES:

DisclaimerSilicon Laboratories intends to provide customers with the latest, accurate, and in-depth documentation of all peripherals and modules available for system and software implementers using or intending to use the Silicon Laboratories products. Characterization data, available modules and peripherals, memory sizes and memory addresses refer to each specific device, and "Typical" parameters provided can and do vary in different applications. Application examples described herein are for illustrative purposes only. Silicon Laboratories reserves the right to make changes without further notice and limitation to product information, specifications, and descriptions herein, and does not give warranties as to the accuracy or completeness of the included information. Silicon Laboratories shall have no liability for the consequences of use of the information supplied herein. This document does not imply or express copyright licenses granted hereunder to design or fabricate any integrated circuits. The products must not be used within any Life Support System without the specific written consent of Silicon Laboratories. A "Life Support System" is any product or system intended to support or sustain life and/or health, which, if it fails, can be reasonably expected to result in significant personal injury or death. Silicon Laboratories products are generally not intended for military applications. Silicon Laboratories products shall under no circumstances be used in weapons of mass destruction including (but not limited to) nuclear, biological or chemical weapons, or missiles capable of delivering such weapons.

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