SLVUCI3 June   2022

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2BoosterPack™ Plug-in Module Operation
  5. 3TPS1HC30EVM Schematic
  6. 4Connection Descriptions
  7. 5Current Limit and Current Sense Configuration
  8. 6Transient Protection
  9. 7TPS1HC30EVM Assembly Drawings and Layout
  10. 8Bill Of Materials
  11. 9Appendix - TPL0102-100 Resistance Codes

2 BoosterPack™ Plug-in Module Operation

While the TPS1HC30EVM can be used as a standalone evaluation board without the need of any external microcontroller, the EVM also comes populated with BoosterPack plug-in module headers to enable easy interface with a Texas Instruments microcontroller. The 40-pin headers of the BoosterPack plug-in module headers are used, however all signals can be accessed using headers J1 and J2 enabling use with the 20-pin header. Additionally, by populating the "LDO to BP Power" jumper, the user has the ability to power the underlying LaunchPad™ development kit through the integrated 3.3-V LDO on the TPS1HC30EVM. The following table contains a list of pins connected to the BoosterPack plug-in module header.

Table 2-1 BoosterPack™ Plug-in Module Pin Assignment
BoosterPack Plug-in Module PinFunctionNote
J1-13.3-V power railDisconnect "LDO to BP Power" if powering from USB.
J1-5Open-drain FAULT pin from TPS1HC30-Q1J13 controls whether the FAULT pin is pulled up from the BoosterPack plug-in module's 3.3-V rail or the 3.3-V onboard LDO of the TPS1HC30EVM.
J1-6Current sensing through the SNS pin Resistor controlled either by digital potentiometer U3, potentiometer labeled "SNS" or soldered down resistor R12
J1-9I2C SDA line for onboard TPL0102-100 digipot (controlling the current limit)Pulled up to BoosterPack plug-in module's 3.3-V rail
J1-10I2C SCL line for onboard TPL0102-100 digipot (controlling the current limit)Pulled up to BoosterPack plug-in module's 3.3-V rail
J2-5EN to enable VOUTActive high. Can be connected to PWM.
J2-6LATCH pin of TPS1HC30-Q1Controls latching behavior of the TPS1HC30-Q1. See the device data sheet for details.
J2-7DIAG_EN pin of TPS1HC30-Q1Enables and disables diagnostics for the TPS1HC30-Q1. See the device data sheet for details.