Texas Instruments TPS26624, TPS26625 User Manual
ADVANCE INFORMATION
User's Guide
SLVUBA5–October 2017
TPS26624-25 Evaluation Module
This user’s guide describes the evaluation module (EVM) for the Texas Instruments TPS26624 and
TPS26625 devices. This document provides configuration information and test setup details for evaluating
the TPS26624-25 devices. The EVM schematic, board layout, and bill of materials (BOM) are included.
Contents
1 Introduction ................................................................................................................... 1
2 Description.................................................................................................................... 2
3 Schematics ................................................................................................................... 3
4 General Configurations ..................................................................................................... 4
5 EVM Board Assembly Drawings and Layout Guidelines ............................................................... 9
6 Bill Of Materials (BOM).................................................................................................... 11
List of Figures
1 TPS26624-25EVM Schematic ............................................................................................. 3
2 EVM Setup With Test Equipment.......................................................................................... 5
3 J4 = 1-2 Position, Current Limit (800 mA) and Auto-Retry............................................................. 7
4 Output Short-Circuit Protection ............................................................................................ 8
5 TPS26624-25EVM Top Side Placement ................................................................................. 9
6 TPS26624-25EVM Bottom Side Placement.............................................................................. 9
7 TPS26624-25EVM Top Layer Routing .................................................................................. 10
8 TPS26624-25EVM Bottom Layer Routing .............................................................................. 10
1 TPS26624-25EVM Options and Setting .................................................................................. 2
2 Input and Output Connector Functionality................................................................................ 4
3 Test Points Description ..................................................................................................... 4
4 Jumper and LED Descriptions ............................................................................................. 4
5 TPS26624-25EVM Oscilloscope Setting for Current Limit Test ....................................................... 6
6 TPS26624-25EVM Jumper Setting for Current Limits.................................................................. 6
7 TPS26624-25EVM Oscilloscope Setting for Output Short Circuit Protection........................................ 7
8 TPS26624-25EVM Bill of Materials ...................................................................................... 11
Trademarks
All trademarks are the property of their respective owners.
1 Introduction
The TPS26624-25EVM allows reference circuit evaluation of TI's TPS2662X. The TPS2662X devices
(TPS26624 and TPS26625) are 4.5- to 57-V, 800-mA industrial eFuse with integrated back-to-back FETs,
programmable undervoltage, overvoltage, input reverse polarity, output reverse polarity, overcurrent and
inrush current protection features.
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List of Tables
Copyright © 2017, Texas Instruments Incorporated
TPS26624-25 Evaluation Module
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Introduction
1.1 Features
The TPS26624-25EVM features include:
• 4.5- to 57-V input operating voltage range
• 25- to 800-mA programmable current limit
• Reverse input polarity and reverse output polarity protection up to –57 V
• Programmable input undervoltage lockout (UVLO) and overvoltage protection (OVP) cutoff
• Programmable VOUT slew rate control
• Overcurrent fault response (auto-retry and latch versions available)
• Optional onboard transient protection like input TVS and output Schottky diodes
• Onboard reset switch
1.2 EVM Applications
The TPS26624-25EVM is used in the following applications:
• Control and automation
• Industrial power systems
• Sensors controls
• PLCs
2 Description
The TPS26624-25EVM enables full evaluation of the TPS26624-25 devices. This EVM has two
independent channels (CH1 and CH2) where two devices can be evaluated together. CH1 is configured to
test TPS26624 – latch-off variant and CH2 is configured to test TPS26625 – auto-retry variant. Input
power is applied at T1 (CH1) and T3 (CH2) while T2 (CH1) and T4 (CH2) provide the output connections
to the load. Refer to the schematic in Figure 1 and EVM test setup in Figure 2. S1 and S2 allow U1 and
U2 to be reset or disabled and jumper J4 and J8 allow the current limit setting to be changed.
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Table 1. TPS26624-25EVM Options and Setting
Part Number EVM Function Vin Range UVLO OVP Current Limit
TPS26624-25EVM 4.5-V to 57-V,
800-mA Industrial eFuse
4.5 V–57 V 15 V 33 V 25 mA 800 mA Auto-retry and Latch-off
Fault Response
Versions Available
2
TPS26624-25 Evaluation Module
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TP1
FLTb1
1
2
T1
VIN1
J2
49.9k
R1
ON
Green
D6
24.3k
R4
VIN1=4.5V to 57V
IIN1=0.025A-0.88A
34.0k
R5
J1
TP5
GND
TP3
VIN1
TP4
VOUT1
TP2
SHDNb1
J3
TP6
GND
TP7
GND
VOUT1=4.5V-57V
IOUT1=0.025A-0.88A
Vout1
Vout1Vin1
Vin1
51V
D3
DNP
1µF
C1
10µFC410µF
C5
0.022µF
C3
29.4k
R3
887k
R2
TP8
FLTb2
J6
49.9k
R11
Green
D12
24.3k
R14
VIN2=4.5V to 57V
IIN2=0.025A-0.88A
34.0k
R15
J5
GND
TP12
GND
TP10
VIN2
TP11
VOUT2
TP9
SHDNb2
J7
TP13
GND
TP14
GND
VOUT2=4.5V-57V
IOUT2=0.025A-0.88A
Vout2
Vout2Vin2
Vin2
51V
D9
DNP
1µF
C6
10µFC910µF
C10
0.022µF
C8
29.4k
R13
887k
R12
IN
1
UVLO
2
OVP
3
SHDN
4
RTN
5
GND
6
ILIM
7
DVDT
8
FLT
9
OUT
10
PAD
11
U1
TPS26624DRCR
IN
1
UVLO
2
OVP
3
SHDN
4
RTN
5
GND
6
ILIM
7
DVDT
8
FLT
9
OUT
10
PAD
11
U2
TPS26625DRCR
2
1
S2
2
1
S1
GNDGND
267k
R10
26.7k
R8
13.3k
R7
7.50k
R6
123456789
10
J4
44.2k
R9
DNP
GNDGND
267k
R20
26.7k
R18
13.3k
R17
7.50k
R16
123456789
10
J8
44.2k
R19
DNP
33V
D2
33V
D8
33V
D4
33V
D10
2.2µF
C7
2.2µF
C2
Red
D5
Red
D11
1
2
T2
VOUT1
1
2
T3
VIN2
1
2
T4
VOUT2
Copyright © 2017, Texas Instruments Incorporated
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3 Schematics
Figure 1 illustrates the EVM schematic.
Schematics
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Figure 1. TPS26624-25EVM Schematic
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TPS26624-25 Evaluation Module
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General Configurations
4 General Configurations
4.1 Physical Access
Table 2 lists the TPS26624-25EVM input and output connector functionality, Table 3 describes the test
point availability, and Table 4 describes the jumper functionality.
Connector Label Description
T1
CH1
T2 VOUT1(+), GND(–) CH1 output from the EVM
T1
CH2
T2 VOUT2(+), GND(–) CH2 output from the EVM
VIN1(+), GND(–) CH1 input power supply to the EVM
VIN2(+), GND(–) CH2 input power supply to the EVM
Test Points Label Description
TP1, TP8 FLTb1, FLTb2 Fault indicator
TP2, TP9 SHDNb1, SHDNb2 Shutdown signal
TP3, TP10 VIN1, VIN2 Power supply input
TP4, TP11 VOUT1, VOUT2 eFuse output
TP5, TP12
TP7, TP14
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Table 2. Input and Output Connector Functionality
Table 3. Test Points Description
GND GNDTP6, TP13
Table 4. Jumper and LED Descriptions
Jumper Label Description
J1, J5 J1, J5 FLTb pullup to VIN1,VIN2
J2, J6 J2, J6 Output power indicator for VOUT1, VOUT2
J3, J7 J3, J6 Connects bulk capacitor to VOUT1, VOUT2
J4, J8 ILIM
4.2 Test Equipment and Set Up
4.2.1 Power Supplies
One adjustable power supply 0-V to 60-V output, 0-A to 5-A output current limit.
4.2.2 Meters
One multimeter minimum needed and may require more if simultaneous measurements are needed.
4.2.3 Oscilloscope
A DPO2024 or equivalent, three 10× voltage probes and a DC current probe.
1-2 position sets 880 mA
3-4 position sets 500 mA
5-6 position sets 250 mA
7-8 position sets 150 mA
9-10 position sets 25 mA
4.2.4 Loads
One resistive load or equivalent which can tolerate up to 2-A DC load at 24 V.
4
TPS26624-25 Evaluation Module
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Power
Supply
Load
+
>
+
Power
Supply
Load
++
V
V
>
>
>
Copyright © 2017, Texas Instruments Incorporated
ADVANCE INFORMATION
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NOTE: A resistive load is recommended for testing. If an electronic load is used, ensure that it is set
in the constant resistance (CR) mode, not in the constant current (CC) mode.
4.3 Test Setup and Connections
Figure 2 shows a typical test setup for the TPS26624-25 EVM. Connect T1 to the power supply and T2 to
the load.
General Configurations
Figure 2. EVM Setup With Test Equipment
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