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没看到手册里说会补充200mV
这个ic可以通过VSET设置输出电压。
VSET pin sets default battery charge voltage in bq25606. Program battery regulation voltage with a
resistor pull-down from VSET to GND.
RPD > 50kΩ (float pin) = 4.208 V
RPD < 500Ω (short to GND) = 4.352 V
5kΩ < RPD < 25kΩ = 4.400 V
8.3.2.4 Input Voltage Limit Threshold Setting (VINDPM Threshold)
The device's VINDPM is set at 4.3V. The device supports dynamic VINDPM tracking which tracks the battery voltage. The device's VINDPM tracks battery voltage with 200mV offset such that when VBAT + 200mV is greater than 4.3V, the VINDPM value is automatically adjusted to VBAT + 200mV.
8.3.6.7 Narrow VDC Architecture
The device deploys Narrow VDC architecture (NVDC) with BATFET separating system from battery. The minimum system voltage is set by SYS_Min bits. Even with a fully depleted battery, the system is regulated above the minimum system voltage.
When the battery is below minimum system voltage setting, the BATFET operates in linear mode (LDO mode), and the system is typically 180 mV above the minimum system voltage setting. As the battery voltage rises above the minimum system voltage, BATFET is fully on and the voltage difference between the system and battery is the VDS of BATFET.
When the battery charging is disabled and above minimum system voltage setting or charging is terminated, the system is always regulated at typically 50mV above battery voltage..
