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

1.2 Alternate Board Configurations

If a custom configuration is desired, users should refer to the TPS7H2221-SEP data sheet to calculate the values of passive components around the device and note any operational requirements.

In addition to the default EVM configuration, this user's guide provides an example for how the TPS7H2221EVM may be configured for single-device operation. The targeted Output Discharge Time and the ON pin input values for the single-device configuration are the same as the default configuration. However, this configuration provides half the output current compared to the parallel-device configuration.

More detailed information about the example single-device EVM configuration can be found in the Single-device Configuration Schmatic and the Single-device Configuration Bill of Materials.

Figure 1-2 Single-device Configuration Simplfied Schematic

Table 1-2 TPS7H2221EVM Single-device Configuration
SpecificationValueDescription
Input Voltage (VIN)

3.3 V

Falls within the recommended device input voltage range of 1.6 V to 5.5 V.
Output Current (IOUT)0 to 1.25 ADoes not exceed maximum device continuous switch current of 1.25 A per device.

ON pin Input High (VIH,ON)

1 to 5.5 V

High and Low inputs to the ON pin.

ON pin Input Low (VIH,ON)

0 to 0.35 V
Output Discharge Time (tFALL)~0.22 ms

Typical output discharge time.

Set by:

R4/R16 (RQOD) = 1 kΩ

JP5/JP10 shunted