Texas Instruments TPS272C45, Руководство пользователя

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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 Point Description
J1 to J4 BOOST-XL headers to connect to Texas Instruments LaunchPad Ecosystem
J5, TP1 Supply voltage
J6 Supply rail for Vdd (A, C, D version of the TPS272C45 only)
J7, J22, TP4, TP5, TP6 Ground connections
TP7 Current sense output (SNS)
J20, TP3 Output voltage 2 (VOUT2)
J21, TP2 Output voltage 1 (VOUT1)
TP8 Enable for VOUT1 (EN1)
TP9 Enable for VOUT2 (EN2)
TP10 Shared fault line (FAULT)
TP11 IC 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
Jumper Function/Settings
J8 Controls EN1 and enables, disables VOUT1
J9 Controls EN1 and enables, disables VOUT2
J10 Sets DIA_EN and enables, disables diagnostics
J11 Controls the SEL pin to set which diagnostics are reported by the SNS pin
J12 Sets the functionality of the device during fault conditions via the LATCH pin
J13
Enables, 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, J15
Controls 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 .
J16
Controls whether or not to use the diode/resistor ground network for reverse current blocking. Populate
jumper to bypass ground network.
J17
Selects if Vdd is being supplied by the BoosterPack or the on-board LDO. Do no populate if being supplied
externally through
J6 .
J18 Controls if the FAULT line is being pulled up by the BoosterPack or the on-board LDO
J19
Connects 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
Connection Descriptions www.ti.com
6 TPS272C45 Evaluation Module SLVUBV4A – DECEMBER 2020 – REVISED DECEMBER 2021
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