Power supply solutionsfor medical equipment

• Product(s) indicated in this presentation are sold under ST terms and conditions

and they are not designed, intended or authorized for use as a critical component

in life support systems, or any FDA Class 3 medical devices or medical devices

with a similar or equivalent classification in a foreign jurisdiction, or any devices

intended for implantation in the human body.

• Contact ST Sales Offices for any further details.

Disclaimer for critical applications

2

Medical power supply

3

Diagnostic equipment Medical Imaging Therapy equipment

The mission critical nature of medical devices demands high quality, reliable and safe products. Our goal is to

consistently deliver products that meet this criteria and to help our Customers to meet this goal. Medical Power

supplies are crucial part of the equipment, usually you can have open frame, enclosed, fanless, and configurable

models as well as wall-mount adapters and DC-DC modules. Often the backup battery is part of the Power

Supply to guarantee the continuity of the operation also in case of interruption of main energy.

Example of electronics inside medical equipment: Medical artificial ventilators

4

Generic

Power Supply Section

AC/DC

Medical power supply

5

Optional

AC / DC

AC / DC

PFC

Converter

DC / DC

LLC

Converter

eFuse

Swicthover

ProtectionsExternal DC IN

12 – 36 V

~External AC

110 / 220 V

50 / 60 Hz

Battery

charger

Primary

battery

Secondary

battery

optional

Battery monitor

Temperature

sensor

MCU

Temperature

sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

VDC 12 / 36 V

VCHARGER 36 VCharge

CTRL

Battery status

PWM /

Enable

3.3 V

EnableDigital lines (USB)

LDO

DC / DC

12 / 24 V

DC Outputs

ST offer in healthcare medical-grade power supply

AC / DC PFC converter

7

Power Factor Correction – Boost PFC

DiodesSTTH1L06 600 V, 5 A Turbo 2 Ultrafast Diode

STPSC2H065 650 V, 2 A High Surge SiC Power

Schottky Diode

STTH5R06DJF: 600 V, 5 A Turbo 2 Ultrafast Diode

STPOWER

MOSFETs

STF40N65M2, STF28N65M2, STF13N65M2,

STF10N60M2

STF46N60M6, STF36N60M6, STF24N60M6

STF38N65M5, STF20N65M5

PFC

controllersL6563x TM PFC Controllers

L4984D CCM PFC Controller

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

DC / DC LLC converter (1/2)

8

LLC resonant converter – Power Discrete

Diodes

STPS60170C: 170 V, 60 A dual power Schottky rectifier

STPS10150C: 150 V, 10 A dual power Schottky rectifier

STTH3003: 300 V, 30 A ultrafast diode

FERD40L60C 60 V, 40 A dual Field-Effect Rectifier Diode

FERD40H100S 100 V, 40 A Field-Effect Rectifier Diode

STL140N6F7 N-channel 60 V, 2.4 mOhm typ., 140 A

STP270N8F7 N-channel 80 V, 2.1 mOhm typ., 180 A

STP310N10F7 N-channel 100 V, 2.3 mOhm typ., 180 A

STPOWER

STripFET

STF24N60M6, STF26N60DM6, STF13N60M6,

STF9N60M6

STF24N60M2, STF24N60DM2, STF13N60M2,

STF10N60M2, STD7N60M2

STPOWER

MOSFETs

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

DC / DC LLC converter (2/2)

9

LLC resonant converter – Controllers

Synchronous

Rectification

Controller

SRK2001A Synchronous rectifier smart driver for LLC

resonant converters

HB LLC

Controllers

L6699 Enhanced high-voltage resonant controller

STCMB1 TM PFC with X-cap discharge and LLC

resonant combo controller

STNRG011 Digital combo multi-mode PFC and time-shift

LLC resonant controller

STM32F334/STM32G474 Mixed Signal Microcontroller

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

L6491 High voltage high and low-side 4 A gate driver

STGAP2D Galvanically isolated 4 A half-bridge dual

channel gate driver

Gate Driver

EVLSTNRG011-150

Protections

10

Protection is crucial for all application and on medical specifically

PROTECT-FINDER

Protection product finder application for Android, iOS and

Wandoujia

MOSFETs

Protection

SMA4F: 400W transient voltage suppressor (TVS) in

SMA Flat

SMA6F: 600W TVS in SMA Flat

SMB15F: 1500W TVS in SMB Flat

DC Power

Rail

SMA6F12A: 600 W, 12 V TVS in SMA Flat

SMA6F24A: 600 W, 24 V TVS in SMA Flat

Digital Line

Protection

USB Type-C

VBUS, CC lines: TCPP02-M18

DP, DM: ECMF02-2AMX6

SSTx, SSRx: ECMF4-2450A60N10

USB lines

USB2.0: USBLC6-2SC6

USB3.x: ESDZX051-1BF4

Vbus : ESDA25P35-1U1M

I2C lines

SDA, SCL: ESDZL5-1F4

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

Electronic fuse (eFuse)

11

Integrated active “fuses” equipped with a full set of protections

STEF12S4 A monolithic electronic fuse

For 12 V bus – 25 V tolerant

TSOT23-8L and DFN 3x3 packages

STEF01

4 A fully programmable high-voltage eFuse

For 8 – 48 V DC rails, 30 mΩ ON resistance

HTSSOP14 package

STPW12

Monolithic, programmable electronic

15 W power breakers

For 12 V Rails – Operates from 10.5 V to 18 V

Power SO8 package

• Fast intervention

• Adjustable overload current and output voltage slew rate

• No damage after events

• Saving time and cost of maintenance of electronics devices

• Increase ruggedness and reliability

• Excellent product’s image

• Small packages

STEVAL-EFUSE01

Key benefits

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

Battery charger

12

Floating boost charger

DiodesSTPS1L60: 60 V, 1 A Low Drop Power Schottky Rectifier

ChargerLED5000: 3 A monolithic step-down current source

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

ProtectionESDA7P120-1U1M: High-power transient voltage

suppressor (TVS)

Voltage Ref TL431: Adjustable Voltage Reference

Battery monitoring

13

The correct battery capacity can save lives

A / D

converter

ADC120

• 8-channel, 50 ksps to 1 Msps,

12-bit A/D Converter

• Suitable for compact applications

where precision is a key factor

Signal

conditioning

TSV9xx series

Wide-bandwidth rail to rail input/output CMOS Op-Amp

TSV6xx series

Rail to rail input/output 5V CMOS Op-Amp, micro-power

TSZ1xx series

Very high accuracy, zero drift 5 V CMOS Op-Amp

Pressure

sensor

LPS22HH: High-performance absolute pressure sensor

• 260 to 1260 mbar absolute pressure

• RMS noise 0.65Pa with Low resolution mode

• Absolute accuracy 0.5hPa @ -20 ~ 80’C

• Unique full-molded package in the market

• The operating and storage atmospheric pressure range of the

battery shall be 600 to 1100 hPa

• A correct battery monitor prevent outages and avoid batteries

completely draining power

Key benefits

STEVAL-AKI001V1

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

Temperature

sensor

STTS22H Low-voltage, ultra-low-power, highly-accurate

I²C/SMBus 3.0 temperature sensor

• Supply voltage: 1.5V – 3.6V

• Low current consumption (1.7 uA in one shot mode)

• Accuracy: ±0.5°C (max) [-10°C – 60°C]

• NIST certification available

• 10-years longevity commitment

Temperature sensors

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Battery temperature affects the charge / discharge flow

• High accuracy, ultra compact size, digital monitoring of power supply

conditions to optimize the airflow and its dissipation

• Programmable temperature conversion rate

• One-shot reading for current saving

• Pin for interrupt generation with programmable threshold &

hysteresis.

Key benefits

STEVAL-MKI200V1K

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

Microcontrollers

15

Power supply digital management

STM8

STM8

• 8-bit microcontroller platform

• State-of-the-art set of peripherals

• Fast and safe development through enhanced stack

pointer operations, advanced addressing modes and

new instructions

STM32

STM32F0 series

• Entry-level Arm® Cortex®-M0 32-bits MCUs

• Suited for cost-sensitive applications

• Combine real-time performance, low-power

operation, and the advanced architecture and

peripherals of the STM32 platform

• Electrical parameters can be changed on fly by commands from

main CPU

• Coordinated operation to tailor the response of the supplies so that

changes on one can affect the output on others

• Faster feedback loop to respond to any changes: change in Main

Power Supply or specific request by main CPU

Key benefits

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

LDO

16

Fixed and adjustable linear voltage regulators

• Low Noise and high PSRR

• Tiny package

• Low Quiescent Current

• Ultra Low-Dropout

Key benefits

LDOs

LD56100: 1 A, 13 µV RMS noise, Low drop

LDBL20: World’s smallest LDO (0.47x0.47) mm2

LD59150: 1.5 A, 65 mV drop

LD39200: 2 A, 130 mV drop

LD56050: 0.5 A, 80 mV drop

LD57100: 1 A, 50 mV drop

STEVAL-LDO001V1

Core products

LDBL20, LDLN025, LD39130S and STLQ020

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

DC / DC converters

17

Switching converters for high efficiency

• High efficiency (LCM version), low noise applications (LNM version)

• Soft-start and enable

• Reduced number of external components

Key benefits

L6983

38 V 3 A high-efficiency synchronous step-down

converter for industrial applications

• High precision for accurate measurements

• High integration for the minimum board size

ST1S31

3 A DC step-down switching regulator

• Output voltage adjustable from 0.8 V

• 1.5 MHz switching frequency

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

L7983

60 V 300 mA synchronous step-down switching

regulator with 10 µA quiescent current

• Fixed output voltage (3.3 V and 5 V) or adjustable

from 0.85 V to VIN

• 2.3 µA shutdown current

STEVAL-ISA208V1

L6983CQ

STEVAL-ISA209V1

L6983NQ

STEVAL-ISA069V1

ST1S31 in DFN 3x3 package

STEVAL-ISA070V1

ST1S31 in SO-8 package

STEVAL-L7983ADJ

L7983PUR

DC / DC converters

18

Switching converters for high efficiency

• High efficiency (LCM version), low noise applications (LNM version)

• Soft-start and enable

• Reduced number of external components

Key benefits

L6983

38 V 3 A high-efficiency synchronous step-down

converter for industrial applications

• High precision for accurate measurements

• High integration for the minimum board size

ST1S31

3 A DC step-down switching regulator

• Output voltage adjustable from 0.8 V

• 1.5 MHz switching frequency

STEVAL-ISA208V1

Core product

L6983CQ

STEVAL-ISA209V1

Core product

L6983NQ

STEVAL-ISA069V1

ST1S31 in DFN 3x3 package

STEVAL-ISA070V1

ST1S31 in SO-8 package

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

Fan controller

19

Novel approach for high power DC rail

Power

Breaker

STPW12PHR

• Real-time input power sensing

• P-channel on resistance typ.: 50 mΩ

• PWM Mode

Evaluation Board

Available on Request

MCU

Enable

PWM

STPW12

12V

Monitor / Fault

Schottk

y

Schottky

Rectifier

STPS1L30

• Very low forward voltage drop for less power

dissipation

• Optimized conduction/reverse losses trade-off which

means the highest yield in the applications

AC / DC

AC / DCPFC

Converter

DC / DCLLC

Converter

eFuse

Switchover

ProtectionsDC IN

12 – 36 V

AC

Charger

Batt. monitor

T° sensor

MCU

T° sensor

Fan control

Protections

DC / DC

24 V

12 V

5 V

3.3 V

36 V

3.3 V

LDO

DC / DC

12 / 24 V

eDesignSuite: The smart way to design power conversion

20

www.st.com/eDesignSuite

Automatic proposal for complete solution or fully

customizable design

• Fully annotated and interactive schematics

• Complete and interactive bill of materials

• Main current and voltage simulations

• Efficiency curves

• Bode stability and power-loss data

• Fully interactive transformer design.

Easy-to-use software suite to help customers define their needs by

translating their application requirements into satisfactory solutions

• Suggest products and topologies for power conversion

• Suggests a list of suitable evaluation boards that

perfectly fit the requirements and specifications.

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