SLVUCS1A july   2023  – august 2023 TPS7H2140-SEP

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Connection Descriptions
      1. 2.1.1 Connectors
    2. 2.2 Variable Resistors for CS and CL
      1. 2.2.1 Current Sense Resistor
      2. 2.2.2 Current Limit Resistors
    3. 2.3 Open-Load Detection Pull-Up Resistors
    4. 2.4 Connecting Channels In Parallel
  7. 3Implementation Results
    1. 3.1 Separated Output Results
      1. 3.1.1 Power Up and Power Down
      2. 3.1.2 Enable and Disable
      3. 3.1.3 Current Sensing
      4. 3.1.4 Load Step Effects Across Output Channels
      5. 3.1.5 Overcurrent Protection
    2. 3.2 Modified Configuration Results
      1. 3.2.1 Short-to-GND (Fast-Trip) Overcurrent
  8. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials
  9. 5Additional Information
    1.     Trademarks
  10. 6Related Documentation
  11. 7Revision History

1.3 Specification

GUID-20230307-SS0I-LHNH-0GH4-9WZJM71TWTWL-low.svgFigure 1-1 Typical Application Diagram
Table 1-1 TPS7H2140EVM Default Configuration
SpecificationValueDescription

Input voltage

VIN

12 VFalls within the recommended device input voltage range of 4.5 V to 32 V.

Parallel Output Channels

CH1-CH4

Allows current capacity of all four channels to be shared for higher current applications.

Output current

IOUT

0 to 4 A

Allows per-channel output current to remain under the default configured current limit of 1.3 A

Current limit

IL

1.3 A

Does not exceed the maximum recommended output current of 1.35 A per channel.

Set by:

R11 = 3.01 kΩ

R15 = 3.01 kΩ

Maximum current sense2.7 A

Allows for accurate current sense through the default configured current limit.

Set by:

R29 = 442 Ω