SLVUBV4A December   2020  – December 2021 TPS272C45

 

  1.   Trademarks
  2. 1 Introduction
  3. 2 Compatibility Across Silicon Versions
  4. 3 BoosterPack Operation
  5. 4 TPS272C45EVM Schematic
  6. 5 Connection Descriptions
  7. 6 TPS272C45EVM Assembly Drawings and Layout
  8. 7 Current Limit Configuration
  9. 8 Current Sense
  10. 9 Transient Protection
  11. 10Bill of Materials
  12. 11Revision History

5 Connection Descriptions

Table 5-1 shows the test points populated on the board as well as the signal connectors.

Table 5-1 Connections and Test Points
Connector and Test PointDescription
J1 to J4BOOST-XL headers to connect to Texas Instruments LaunchPad Ecosystem
J5, TP1Supply voltage
J6Supply rail for Vdd (A, C, D version of the TPS272C45 only)
J7, J22, TP4, TP5, TP6Ground connections
TP7Current sense output (SNS)
J20, TP3 Output voltage 2 (VOUT2)
J21, TP2Output voltage 1 (VOUT1)
TP8Enable for VOUT1 (EN1)
TP9Enable for VOUT2 (EN2)
TP10Shared fault line (FAULT)
TP11IC Ground (IC_GND)

Table 5-2 shows the relevant configuration jumpers of the TPS272C45EVM as well as the associated values. Please refer to the TPS272C45 data sheet for detailed information on each pin's functionality.

Table 5-2 Jumper Configurations
JumperFunction/Settings
J8Controls EN1 and enables, disables VOUT1
J9Controls EN1 and enables, disables VOUT2
J10Sets DIA_EN and enables, disables diagnostics
J11Controls the SEL pin to set which diagnostics are reported by the SNS pin
J12Sets the functionality of the device during fault conditions via the LATCH pin
J13Enables, 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 to be high.
J14, J15Controls which resistance value that is going into ILIM1. Only populate either J14 or J15 (not both) at a time. If J14 is populated a 10-kΩ value is used and if J15 is used a 4.99-kΩ value is used for ILIM1. If controlling from a from a microcontroller do not populate J14 or J15.
J16Controls whether or not to use the diode/resistor ground network for reverse current blocking. Populate jumper to bypass ground network.
J17Selects if Vdd is being supplied by the BoosterPack or the on-board LDO. Do no populate if being supplied externally through J6.
J18Controls if the FAULT line is being pulled up by the BoosterPack or the on-board LDO
J19Connects the BoosterPack 3.3-V rail to the on-board LDO's 3.3-V output giving the ability to power the connected LaunchPad from the LDO.

J23

Configures pin 18 to be connected to ILIMD in A, B, C version or FLT1 in D version