SLUUD62 September 2025
3.2.3 Forward/Charge/Sink Mode Verification
Use the following steps for forward/charge mode verification with the EVM default settings per the CELLS, VCHG and ICHG pin resistors:
- Turn on PS #1 set to 12V if not already on. In the EVM software, click
twice. Verify that- All Fault and Status registers do not report any fault conditions.
PG_STAT reports Power Good
CHARGE_STAT reads Fast Charge
STAT LED is on and not flashing
- For BQ25690EVM only: To confirm minimum SYS
voltage regulation and pre-charge regulation (see Section 2.4), take DMM
measurements as follows:
- Measure → V(SYS) (SYS-TP13 and AGND) = 6.2V -6.6V.
- Measure → V(BAT) (SRN-TP14 and AGND) = 5V ±0.1V.
- Measure → I(BAT) = 100mA ±50mA.
- To confirm battery fast charge current regulation, increase Load #1 to 7.6V and take DMM measurements as follows:
- Measure → V(SYS) (SYS-TP14 and AGND) = 7.6V -7.9V.
- Measure → V(BAT) (BAT-TP13 and AGND) = 7.6V ±0.1V.
- Measure → I(BAT) = 1A ±100mA.
- To confirm input current limit operation, in the EVM software on the 16-bit tab, lower IINDPM current to 500 mA and then take DMM measurement ( or PS #1 measurement if accurate) as follows:
- Measure → I(VIN) = 500 mA ±200mA.
Verify that IINDPM_STAT register reports IINDPM Active