SLUUC79A May   2020  – February 2022 TPS51215A

 

  1. 1Introduction
  2. 2Performance Specification Summary
  3. 3Test Setup and Results
    1. 3.1 Input/Output Connections
    2. 3.2 Start-Up Procedure
    3. 3.3 Power Up
    4. 3.4 Power Down
  4. 4Board Layout
  5. 5Board Profile, Schematic, List of Materials, and Reference
    1. 5.1 Board Profile
    2. 5.2 Schematic
    3. 5.3 List of Materials
    4. 5.4 Reference
  6. 6Revision History

3.1 Input/Output Connections

The TPS51215AEVM is provided with input/output connectors and headers description shown in Table 3-1, and output voltage selection shown in Table 3-2, and test points shown in Table 3-3. A power supply capable of supplying greater than 16 A must be connected to J2. The load must be connected to J3. The maximum load current capability is 30 A. Wire lengths must be minimized to reduce losses in the wires.

Table 3-1 Connectors and Headers
# Functions Comment
J1 5-V power input for 5VIN
J2 VIN power input
J3 Connects with VOUT loading
JP1 Mode pin For 51215A, connect mode pin to 5VIN. Short JP1-2 and JP1-3.
JP2 VID0 control connector Short JP2-2 and JP2-3 to make VID0 = 1. Short JP2-1 and JP2-2 to make VID0 = 0.
JP3 EN control connector Short JP3-1 and JP3-2 to make EN connected to GND. Short JP3-2 and JP3-3 to make EN connected to 5VIN.
JP4 VID1 control connector Short JP4-2 and JP4-3 to make VID1 = 1. Short JP4-1 and JP4-2 to make VID1 = 0.
Table 3-2 Output Voltage Selection
JP4 VID1 JP2 VID0 VOUT
JP4-1 and JP4-2 0 JP2-1 and JP2-2 0 0 V
JP4-1 and JP4-2 0 JP2-2 and JP2-3 1 1.1 V
JP4-2 and JP4-3 1 JP2-1 and JP2-2 0 1.65 V
JP4-2 and JP4-3 1 JP2-2 and JP2-3 1 1.77 V
Table 3-3 Test Points
TP# NAME SIGNAL
TP1 5VIN External 5-V power for 5VIN
TP2 GND GND
TP3 VIN VIN
TP4 VIN VIN
TP5 TRIP OC setting
TP6 SLEW Soft start control
TP7 VSENS VOUT remote sense
TP8 DRVL Low-side drive signal
TP9 DRVH High-side drive signal
TP10 GND GND
TP11 GND GND
TP12 LOOP Change R9 to approximately 51 Ω for loop test
TP13 LX Switching node
TP14 VOUT VOUT
TP15 VOUT VOUT
TP16 VREF Reference output
TP17 GND GND
TP18 GND GND
TP19 PGOOD PGOOD output
TP20 GSNS GND for VOUT remote sense
TP21 GND GND
TP22 GND GND
TP23 GND GND
TP24 GND GND
TP25 GND GND
TP26 GND GND
TP27 GND GND
TP28 VID0 VID0 input
TP29 EN Enable signal input
TP30 VID1 VID1 input