Figure 2. STEVAL-DPSLLCP1 power board - Aux SMPS schematic

LD1117DT50TR

R7

1

8.2k

100nF

GND

10

0

R2

3.3

GND1

2

VIPER27HD

D9

TP44

STPS1150A

1

GND

D3

TP4

VCC sec

10

1

GND

C3

33nF

R3

0

GND1

100µF

D6

0

R1

0

R63.3

DIODE Zener 18V 1W

STPS1L40U

C7

2

U1

VBUS

2

VOUT

GND1

C12

TP1

D1

C15

1k

STTH102A

BR

R12

CONT

L11µH

VCC pri

GND

0.1µF

R13

GND1

47k

GND

C5

C2

D2

U3

D7

C1

LD1117DT50TR

22µF

U2

+

TS2431

82k

C92.2nF

5V

100nF

6

1µF

C10

GND1

470µF

R8

2.2R4

C125

TP3

C13

470µF

D5

C11

9

C4

+

6

STPS1150A

VDD

4

CONTROL

T1

C6

470µF

R10

R14

2K

GND

OPTO1

220

STPS1150A

3.3nF

R5

C8

2

VOUT

D76

100µF

DRAIN

SOURCE

D4

DIODE Zener 18V 1W

D8

PC817

33nF

8

TP2

GND1

FB

GND1

100µF

GND1

12V

GND

R166

N.A.

R11

+5V

GND1

7

STPS1150A

100µF

3.3K

R9

+5V_prim

VIN

3

VR1

VIN

3

PKC-136

GND

TP45

C14

DIODE Zener 15V 1W

Figure 3. STEVAL-DPSLLCP1 power board - filtering and connector schematic

A_GND

12B

13A

TP10

C22

R310

BAT754

R19

4A

27A

28A

+5V

Resonance Current

21A

21B

BAT41KFILM

10A

10B

PWM_7

28B

30B

D16

25A

25B

100nF

C26

C136

VDDA

DC Output Current sensing

PWM_FB_LS1

PWM_1

TP14

D18

A_VDD

13A

13B

R410

CAN_TX

SMBus_SCL/UI_USART_RX

SMBus_SDA/UI_USART_TX

D14

470 Ohm 10oMHz 215 mA

23A

23B

8A

8B

A_VDD

22B

23A

4B

5A

TP13

Note: Keep all filtering parts traces short as

possible to connector P1

25B

7A

7A

10B

11A

100

R210

P1

28A

29A

+5V

20B

21A

1B

2A

2A

PWM_5

A_GND

24A

24B

GND

R23100

R24100

TP9

30B

26A

2

32A

31B

VDS_SR1 sensing

+5V

PWM_2

10pF

R260

270

17A

17B

VDDA

R330

DC Bus Monitor sensing

R370

Resonance Current sensing

31B

32B

8B

9A

VDDA

16B

17A

1

29A

30A

BAT754

11A

11B

Temperature sensing

C21

1B

D17

22A

22B

A_GND

USART_TX_iso

9A

9B

9B

7B

7B

24B

25A

PWM_8

GND_iso

PWM_FB_HS1

15A

15B

D12

14A

14B

2.7nF

18B

19A

DC Vout Monitor sensing

+3.3V

R400

ADC_4/DIFF_ADC_2-/OP-AMP_2-

COMP_1_INP/ADC_11

COMP_2_INP/ADC_12/OP-AMP_1+

ADC_7/COMP_2_INM

ADC_5

ADC_1/DIFF_ADC_1+

ADC_2/DIFF_ADC_1-/OP-AMP_2+

ADC_3/DIFF_ADC_2+/OP-AMP_2_OUT/COMP_1_NM

ADC_6/OP-AMP_1-

COMP_3_INP

2.2uF

VDDA

BAT41KFILM

R15

D10

PWM_2

PWM_4

PWM_6

PWM_8

GPIO_7/DAC_3/OP-AMP_1_OUT

GPIO_9/EEV_3/SPI_MISO

ADC_1/DIFF_ADC_1+

A_GND

VDDA

BAT754

27B

28B

BAT754

100

R16

DC Vout Monitor

+3.3V_iso

GPIO_6/DAC_2/SPI_SCLK

TP11

R290

270

A_GND

21B

22A

R340

VDS_SR2 sensing

FAN_PWM

TP15

L2

8A

10pF

GPIO_2/COMP_2_OUT/GP_PWM_2

GPIO_4/EEV_1

GPIO_8/EEV_2

D13

29B

27B

5A

5B

A_GND

VDDA

17B

18A

R17

R350

BAT41/BAS70

3A

3A

VDDA

VDS_SR1 sensing

A_GND

2

CAN_RX

SD/OD_4

26B

29B

Temperature sensing

ADC_5

PWM_6

30A

32A

VDS_SR2

DC Output Current

DC Output Current sensing

PWM_FB_HS2

18A

18B

R300

GPIO_1/COMP_3_OUT/GP_PWM_1/EEV_4

1

1

VDS_SR2 sensing

5B

6A

11B

12A

R44100

15B

16A

R420

2

100nF

C17

1A

26B

TP6

Temperature

12A

12B

VDDA

2.2uF

USART_RX_iso

19A

19B

47nF

100nF

Digital Power Connector

ADC_4/DIFF_ADC_2-/OP-AMP_2-

ADC_2/DIFF_ADC_1-/OP-AMP_2+

ADC_3/DIFF_ADC_2+/OP-AMP_2_OUT/COMP_1_NM

2B

+

PWM_FB_LS2

BAT754

PWM_10

PWM_12

GPIO_3/COMP_1_OUT/FAULT_2

GPIO_2/COMP_2_OUT/GP_PWM_2

GPIO_4/EEV_1

GPIO_5/DAC_1/COMP_4_INP/SPI_NSS

GPIO_8/EEV_2

SD/OD_3

14B

15A

VDDA

DC Vout Monitor sensing

R320

D20

BAT754

31A

16A

16B

1A

GND

ADC_6/OP-AMP_1-

COMP_2_INP/ADC_12/OP-AMP_1+

ADC_7/COMP_2_INM

19B

20A

20A

20B

VDDA

A_GND

PWM_3

R220

PWM_SR_HS2

Resonance Current sensing

2B

PWM_SR_LS1

DC Bus Monitor

VDS_SR1

R18

ADC_8

BAT41/BAS70

100nF

BAT754

SMBus_SMBA/SPI_MOSI

TP5

TP7

FAULT_1

PWM_1

R250

+

ADC_8

ADC_9

ADC_10

C137

PWM_4

100

32B

31A

4A

4B

D11

+3.3V

23B

24A

+3.3V

3B

3B

DC Bus Monitor sensing

C16

PWM_3

PWM_5

PWM_7

PWM_9

PWM_11

PWM_SR_LS2

PWM_SR_HS1

C24

C20

10A

R38100

GPIO_10/DAC_4

A_GND

COMP_1_INP/ADC_11

COMP_3_INP

26A

27A

13B

14A

R280

6A

6B

6B

C18

STEVAL-DPSLLCK1

STEVAL-DPSLLCK1 schematics

DB3560 - Rev 1

page 3/7