SLUSF40 October 2024 BQ25190
PRODUCTION DATA
Refer to the PDF data sheet for device specific package drawings
With a valid input source connected, the power-path management circuitry monitors the input voltage and current continuously. The current into IN is shared between charge current and system load current. If the sum of the charge current and system load current exceeds ILIM set by ILIM or the input current level reduced to by the VINDPM (whichever is lower), VSYS can drop to the DPPM voltage threshold. In the case, the charge current is reduced by the DPPM loop through the BATFET so that VSYS is regulated at VBAT + VDPPM. If VSYS drops to supplement mode threshold after BATFET charging current is reduced to zero, the part enters supplement mode. Termination is disabled when the DPPM loop is active.
The DPPM can be disabled by setting VDPPM_DIS to 1 which may allow smaller voltage difference between VSYS and VBAT.
The DPPM cannot be disabled when the device is in BATDEPL.