TI中文支持网如题
需要 充电电流3a 电池最大放电电流为5a左右的
类似bq24072这种的 单节锂电池管理芯片
1—多节的也行. 要求不带通讯 不带内部寄存器的
user5915866：
回复 Johnsin Tao:
找到bq25606
请问 25606 在进入充电模式后 会补充200毫伏
输出电压将达到4.4v怎样把输出电压降到4.2v 以内呢.
或直接 在输出端 串联二极管可以不
灰小子：
回复 user5915866:
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
user5915866：
回复 灰小子:
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.这里 这段说明比较绕口
user5915866：
回复 灰小子:
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..还有这里又说明 补充的 50毫伏我不太明白
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