TIDT256A March 2022 – March 2022
This section shows how to evaluate the UCC5870-Q1 with the UCC5870-Q1 EVM GUI.
Use the UCC5870QEVMGUI-044 MCU daughter board to communicate between PMP22817 port J3 and a Personal Computer (PC) with the UCC5870-Q1 EVM GUI software installed.
Ordering a UCC5870-Q1 EVM includes the UCC5870QEVMGUI-044 and cable to connect from the UCC5870QEVMGUI-044 to a USB port on the PC. The user’s guide for the EVM includes instructions to download the GUI onto a PC, and then instructions to operate the UCC5870-Q1 on the PMP22817 after power up.
Use the PMP22817-adapterA to connect PMP22817 J3 to this UCC5870QEVMGUI-044 J103. Both boards should plug into this adapter such that they do not overlap.
| UCC5870QEVMGUI-044 J103 Pin Number |
PMP22817 J3 Pin Number |
PMP22817 Pin Name |
|---|---|---|
| 9 | 12 | SDI_ADD |
| 10 | 13 | SDO_ADD |
| 8 | 9 | nCS |
| 14 | 5 | nFLT2 |
| 3 | 3 | Vbias |
| 7 | 10 | CLK |
| 12 | 8 | INP |
| 13 | 6 | nFLT1 |
| 15 | 15 | GND |
Also, use the USB A male-B micro to male 1-M cable from the same MCU daughter board UCC5870QEVMGUI-044 to connect its J100 to any USB port on a PC with the UCC5870-Q1 EVM GUI software loaded.
Make sure the J5 jumper on the PMP22817 is in place to allow the 24 V from the SEPIC to power the UCC14020-Q1. Connect VIN to J1, Vbias to J2, and power up. Once PMP22817 is powered up, follow the steps in the power up section of the UCC5870QDWJEVM-026 Evaluation Module users guide, after the step that creates the PWM waveforms, there is a –5 V to 15 V, 10 kHz, 50% duty cycle square wave present between the gate and GND pads.