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1 Introduction

The Texas Instruments TPS272C45EVM is an evaluation module that is used to demonstrate and showcase 
all of the features of the underlying TPS272C45 industrial high side switch. This evaluation board provides a 
seamless way to connect a set of power supplies to the inputs of the TPS272C45, connect loads to the output 
channels, and switch on and off the device using the control pins of the chip itself. An on-board 3.3-V LDO 
is included on the EVM to simplify controlling signals to the TPS272C45 and easily assert and deassert logic 
signals by the use of a set of external hardware jumpers. Additionally this EVM includes BoosterPack headers 
allowing the user to easily connect the TPS272C45 high side switch to an underlying microcontroller and write 
software to control and configure the device.

Features of the TPS272C45EVM include:

• Multiplexed current limit configuration on ILIM1
• BoosterPack headers allowing power switch to be controlled by external microcontroller
• On-board 3.3-V LDO allowing for control signals to be manipulated by set of jumpers
• Ideal board layout and copper area for thermal performance
• Ability to support versions A, B, C, and D of the TPS272C45
• Optional footprint to populate external inductive clamping diodes (version C of TPS272C45)
• Optional footprint to populate TVS diode for Vdd input (version A of TPS272C45)

Introduction

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2

TPS272C45 Evaluation Module

SLVUBV4A – DECEMBER 2020 – REVISED DECEMBER 2021

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Copyright © 2021 Texas Instruments Incorporated

Summary of Contents for TPS272C45

Page 1: ...tion 2 2 Compatibility Across Silicon Versions 3 3 BoosterPack Operation 4 4 TPS272C45EVM Schematic 5 5 Connection Descriptions 6 6 TPS272C45EVM Assembly Drawings and Layout 7 7 Current Limit Configur...

Page 2: ...ing the user to easily connect the TPS272C45 high side switch to an underlying microcontroller and write software to control and configure the device Features of the TPS272C45EVM include Multiplexed c...

Page 3: ...filter any transients above 5 V When using the C version of the device populate D2 D3 D8 and D9 with the relevant diodes required for inductive loading TI recommends the SMC series of diodes due to th...

Page 4: ...the pin To power the attached LaunchPad from the on board LDO of the TPS272C45EVM connect the jumper J19 Note that this feeds the output of the 3 3 V LDO on the TPS272C45EVM into the 3 3 V rail on the...

Page 5: ...alog_In I2S_WS 27 Analog_In I2S_SCLK 28 Analog_Out I2S_SDout 29 Analog_Out I2S_SDin 30 J1 J3 SSQ 110 03 T D GPIO 31 GPIO 32 GPIO 33 GPIO 34 Timer_Cap GPIO 35 Timer_Cap GPIO 36 PWM GPIO 37 PWM GPIO 38...

Page 6: ...he functionality of the device during fault conditions via the LATCH pin J13 Enables disables the on board 3 3 V LDO Must be set to top position marked on silk screen as 3 3 V LDO to allow J8 to J12 t...

Page 7: ...gure 6 1 3D Representation Figure 6 2 Top Layer www ti com TPS272C45EVM Assembly Drawings and Layout SLVUBV4A DECEMBER 2020 REVISED DECEMBER 2021 Submit Document Feedback TPS272C45 Evaluation Module 7...

Page 8: ...Figure 6 4 Ground Layer TPS272C45EVM Assembly Drawings and Layout www ti com 8 TPS272C45 Evaluation Module SLVUBV4A DECEMBER 2020 REVISED DECEMBER 2021 Submit Document Feedback Copyright 2021 Texas In...

Page 9: ...Bottom Layer www ti com TPS272C45EVM Assembly Drawings and Layout SLVUBV4A DECEMBER 2020 REVISED DECEMBER 2021 Submit Document Feedback TPS272C45 Evaluation Module 9 Copyright 2021 Texas Instruments I...

Page 10: ...its can be selected from an external microcontroller through the BoosterPack headers This feature can seen below in Figure 7 1 Figure 7 1 Multiplexed Current Limit With this configuration the user can...

Page 11: ...pin it can required to populate a Zener diode on pin D7 to regulate the maximum voltage going into the microcontroller s analog input By default a 1 k resistor is used as the SNS resistor R15 however...

Page 12: ...transient protection features Input TVS diode on VS D4 to protect against upstream power events populated Optional external inductive load turn off diode footprints on D2 D3 D8 and D9 to provide a mec...

Page 13: ...B SMBJ36A 13 F Diodes Inc J1 J3 J2 J4 Receptacle 2 54mm 10x2 Tin TH 10x2 Receptacle SSQ 110 03 T D Samtec J5 J6 J20 J21 Standard Banana Jack insulated 10A red 571 0500 571 0500 DEM Manufacturing J7 J2...

Page 14: ...t 5011 Keystone TP7 TP8 TP9 TP10 TP12 Test Point Multipurpose Green TH Green Multipurpose Testpoint 5126 Keystone U1 Single Output LDO 100 mA Fixed 3 3 V Output 3 to 60 V Input with Enable and Power G...

Page 15: ...ision December 2020 to Revision A December 2021 Page Added support for TPS272C45 version D 1 Updated Figure 4 1 5 Updated Figure 6 1 through Figure 6 5 7 www ti com Revision History SLVUBV4A DECEMBER...

Page 16: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Page 17: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Page 18: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Page 19: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Page 20: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Page 21: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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