JAJSL33A june 2020 – january 2021 BQ25731
PRODUCTION DATA
The actual input current limit being adopted by the device is the lower setting of IIN_DPM and ILIM_HIZ pin. Register IIN_DPM input current limit setting will reset for below scenarios:
The voltage regulation loop of the charger regulates the input voltage to prevent the input adapter collapsing. The VINDPM threshold should be configured based on no load input voltage level.Charger initiates a VBUS voltage measurement without any load (VBUS at no load) right before the converter is enabled. The default VINDPM threshold is VBUS at no load – 1.28 V. Host can adjust VINDPM threshold after device POR through InputVoltage register(0x0B/0Ah[]), range from 3.2V to 19.52V with LSB 64mV.
After input current and voltage limits are set, the charger device is ready to power up. The host can always program the input current and voltage limit after the charger being powered up based on the input source type.