Texas Instruments TPS25940XEVM-635 User Manual Download Page 3

1nf

C12

475k

R20

SH-J9

1

2

3

J9

16.9k

R25

TP26

ILIM LO

ILIM HI

TP17

EN_UV2

TP18

OVP2

TP15
VIN2

TP16
VOUT2

Red

D6

Green

D7

10.0k

R5

TP10

P-LOAD-RTN

TP6

P-LOAD

330pF

C11

VIN2

TP7

I-LOAD

VOUT2

VOUT1

4

7

,8

1

,2

,3

5

,6

,

30V

Q1
CSD17301Q5A

Pin1_CTRL-2

TP22

IMON2

FLTb-2

P-LOAD

2

1

S2

1nf

C6

475k

R4

SH-J4

1

2

3

J4

TP14

ILIM LO

ILIM HI

TP3
VIN1

TP2
VOUT1

Red

D2

Green

D3

330pF

C5

VIN1

VOUT1

Pin1_CTRL-1

TP11
IMON

FLTb-1

2

1

S1

0.1µF

C1

TP4
FLTb1

TP20
FLTb2

TP21
PG2

1

2

3

4

J5

VOUT1

VOUT2

SH-J5

TP12

TP25

TP24

TP13

VIN=2.7V-18V

IIN=0.6A-5.0A

VIN=2.7V-18V

IIN=0.6A-5.0A

VOUT=2.7V-18V

IOUT=0.6A-5.0A

VOUT=2.7V-18V

IOUT=0.6A-5.0A

1

2

3

Q3

1
2
3

J10

10k

R29

VIN2

100k

R24

SH-J10

Pin1_CTRL-2

1

2

3

Q2

10k

R21

VIN1

100k

R15

SH-J6

Pin1_CTRL-1

PG-1

PG-2

PG-1

PG-1

PG-2

TP1
SYS_PG

TP19

TP23

FLTb-1

Pin1_CTRL-2

VIN1

22k

R8

DNP

OVP-2

OVP-2

SH-J1

24.9k

R12

24.9k

R27

100k

R1

100k

R2

100k

R16

100k

R17

20V

D8
B320A-13-F

20V

D4
B320A-13-F

330µF

C10

16V

D9

16V

D5

4.7µF

C2

4.7µF

C3

4.7µF

C8

4.7µF

C9

DEVSLP

1

PGOOD

2

PGTH

3

OUT

4

OUT

5

OUT

6

OUT

7

OUT

8

IN

9

IN

10

IN

11

IN

12

IN

13

EN/UVLO

14

OVP

15

GND

16

ILIM

17

DVDT

18

IMON

19

FLTB

20

PAD

U1

TPS25940ARVC

DEVSLP

1

PGOOD

2

PGTH

3

OUT

4

OUT

5

OUT

6

OUT

7

OUT

8

IN

9

IN

10

IN

11

IN

12

IN

13

EN/UVLO

14

OVP

15

GND

16

ILIM

17

DVDT

18

IMON

19

FLTB

20

PAD

U2

TPS25940LRVC

0.1

R6

1

2

J3

1

2

J8

1
2

J2

1
2

J7

TP9
PG1

0.003

R7

DNP

TP5
OVP1

TP8
EN_UV1

475k

R3

475k

R18

475k

R19

16.9k

R9

32.4k

R13

48.7k

R22

DNP

32.4k

R26

47k

R11

47k

R23

EN/UVLO-1

OVP-1

DVDT-1

IMON-1

ILIM-1

PGTH-1

DVDT-2

IMON-2

ILIM-2

PGTH-2

EN/UVLO-2

1
2
3

J6

1

2

3

J1

SGND1

SGND2

Net-Tie

Net-Tie

Net-Tie

Net-Tie

Net-Tie

IMON-1

330µF

C4

16.9k

R10

16.2k

R14

16.2k

R28

Net-Tie

1µF

C7

1

3

2

D1
BAT54C-7-F

www.ti.com

Schematic

3

Schematic

Figure 1

shows the EVM schematic.

Figure 1. TPS25940XEVM Schematic

3

SLVUA44 – June 2014

TPS25940XEVM-635: Evaluation Module for TPS25940X

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Copyright © 2014, Texas Instruments Incorporated

Summary of Contents for TPS25940XEVM-635

Page 1: ...PS25940XEVM Schematic 3 2 EVM Test Setup 6 3 VOUT Ramp Up Time for CH1 9 4 VOUT Ramp Up Time for CH2 9 5 J4 LO Current Limit Test Auto Retry CH1 11 6 J9 No Jumper Current Limit Test with Latch CH2 11...

Page 2: ...s full evaluation of the TPS25940X devices The EVM supports two versions Auto retry and Latched of the devices on two Channels CH1 and CH2 respectively Input power is applied at J3 CH1 and J8 CH2 whil...

Page 3: ...R16 100k R17 20V D8 B320A 13 F 20V D4 B320A 13 F 330 F C10 16V D9 16V D5 4 7 F C2 4 7 F C3 4 7 F C8 4 7 F C9 DEVSLP 1 PGOOD 2 PGTH 3 OUT 4 OUT 5 OUT 6 OUT 7 OUT 8 IN 9 IN 10 IN 11 IN 12 IN 13 EN UVLO...

Page 4: ...rent 1 187 voltage on TP11 TP2 VOUT1 CH1 Output from the EVM TP9 PG1 CH1 Power good test point TP4 FLTb1 CH1 Fault test point TP12 GND GND TP13 GND GND TP14 GND GND CH2 TP15 VIN2 CH2 Input power suppl...

Page 5: ...fault current limit is 2 1 A for VIN1 J9 1 2 Install jumper at this location for 5 3 A current Limit for VIN2 2 3 Install jumper at this location for 3 6 A current Limit for VIN2 OPEN If no jumper is...

Page 6: ...T H E L P A L P H A S H I F T E N T E R R U N DG ER F I A J BK C L 7M 8N 9O DG DG DG DG T 3U 0V W X Y Z T A B U T I L I Z A T I O N H U B M A U N I C 2 B N C 4 M b s Oscilloscope xx xx xx xx x x xx x...

Page 7: ...he PWR635 assembly as shown in Figure 2 4 Ensure that the output load is disabled and the power supply is set properly for the design under test DUT Connect the negative probe of DMM to TP12 or TP25 G...

Page 8: ...green PG LED D7 turns off and red FLTb2 LED D6 turns ON Release S2 Reduce the input voltage on VIN2 and monitor VOUT2 verify that VOUT2 TP16 starts falling and is fully turned off when VIN2 TP15 reach...

Page 9: ...illustrates Figure 3 VOUT Ramp Up Time for CH1 Set the output load at 100 on CH2 and then enable the load Turn on the power supply Press the EVM RST switch S2 and release verify that VOUT2 TP16 ramps...

Page 10: ...ms div NOTE If an electronic load is used ensure that the output load is set to constant resistance mode and not constant current mode NOTE Measuring Current Limit values on the oscilloscope can easil...

Page 11: ...t the output load at 1 0 0 1 on CH2 and then enable the load Turn on the VIN2 power supply and verify that the input current is limited as per the setting in Table 10 Also verify the device is in latc...

Page 12: ...Guidelines Figure 7 through Figure 9 show component placement and layout of the EVM Figure 7 Top Side Placement Figure 8 Top Side Routing Layer 12 TPS25940XEVM 635 Evaluation Module for TPS25940X SLVU...

Page 13: ...embly Drawings and Layout Guidelines Figure 9 Bottom Side Routing Layer 13 SLVUA44 June 2014 TPS25940XEVM 635 Evaluation Module for TPS25940X Submit Documentation Feedback Copyright 2014 Texas Instrum...

Page 14: ...tivity J5 1 Header TH 100mil 2x2 Gold plated 230 mil above insulator TSW 102 07 G D TSW 102 07 G D Samtec Inc Equivalent Any LBL1 1 Thermal Transfer Printable Labels 0 650 W x 0 200 H PCB Label 0 650...

Page 15: ...t Point SMT Compact Testpoint_Keystone_Com 5016 Keystone Equivalent Any TP24 TP25 pact U1 1 2 7V 18V eFuse with True Reverse Blocking and DevSleep RVC0020A TPS25940ARVC Texas Instruments None Support...

Page 16: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Page 17: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Texas Instruments TPS25940EVM 635...

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