SLVUCF4 August   2022

PRODUCTION DATA  

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Default Board Configuration
    2. 1.2 Alternate Board Configurations
  4. 2EVM Connectors and Test Points
  5. 3Test Results
    1. 3.1 Parallel Configuration Results
  6. 4Load Transient Circuitry
  7. 5Board Layout
  8. 6Schematic
    1. 6.1 Parallel Configuration Schematic
    2. 6.2 Single Configuration Schematic
  9. 7Bill of Materials (BOM)
    1. 7.1 Parallel Configuration BOM
    2. 7.2 Single Configuration BOM
  10. 8Revision History
  11. 9Related Documentation

1 Introduction

The TPS7H2221-SEP device is a small, single channel load switch with controlled slew rate. The device contains an N-channel MOSFET that can operate over an input voltage range of 1.6 V to 5.5 V and can support a maximum continuous current of 1.25 A. The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a Smart Pull Down is used to keep the ON pin from floating until system sequencing is complete. Once the pin is deliberately driven HIGH (>VIH), the Smart Pull Down will be disconnected to prevent unnecessary power loss. The TPS7H2221-SEP load switch is also self-protected, meaning that it protects against short circuit events on the output of the device.