SLVU504A September 2011 – August 2021 TPS54623
The TPS54623EVM-012 is provided with input/output connectors and test points as shown in Table 2-1. A power supply capable of supplying 4 A must be connected to J1 through a pair of 20 AWG wires. The jumper across J5 must be in place. See Section 1.3.5 for split-input voltage rail operation. The load must be connected to J2 through a pair of 20 AWG wires. The maximum load current capability must be 6 A. Wire lengths must be minimized to reduce losses in the wires. Test-point TP1 provides a place to monitor the VIN input voltages with TP2 providing a convenient ground reference. TP3 is used to monitor the output voltage with TP5 as the ground reference.
| REFERENCE DESIGNATOR | FUNCTION |
|---|---|
| J1 | PVIN input voltage connector (see Table 1-1 for VIN range.) |
| J2 | VOUT, 3.3 V at 6 A maximum |
| J3 | 2-pin header for enable. Connect EN to ground to disable, open to enable. |
| J4 | VIN input voltage connector. Not normally used |
| J5 | PVIN to VIN jumper. Normally closed to tie VIN to PVIN for common rail voltage operation. |
| J6 | 2-pin header for tracking voltage input and ground |
| J7 | 2-pin header for tracking output and ground |
| TP1 | PVIN test point at PVIN connector |
| TP2 | GND test point at PVIN connector |
| TP3 | Output voltage test point at VOUT connector |
| TP4 | PH test point |
| TP5 | GND test point at VOUT connector |
| TP6 | Test point between voltage divider network and output. Used for loop response measurements. Slow start/track in test point |
| TP7 | COMP pin test point |
| TP8 | VIN test point at VIN connector |
| TP9 | GND test point at VIN connector |