BQ25756: 充电异常

Part Number: BQ25756

1.使用贵公司该系列产品对超级电容充电,为什么充电一段时间后,电压升高到一定值,就没有输出电流了?并且充电状态仍然为不变“Fast Charge”

2.寄存器配置:

//0010: Charge Voltage Limit:15V

//0050: Charge Current Limit--1A

//0060: Input Current DPM Limit--3A

//0382: Input Voltage DPM Limit--4.5V

//0028: Precharge Current Limit--500mA

//00F0: Termination Current Limit--3A

//01: Precharge and Term Control(关闭终止充电电流控制termination control、开启预充电和涓流充电)

 //05: Timer Control(关闭顶部定时器,关闭看门口,关闭充电计时12H)

//C9: Charger Control(默认)

//C0: Pin Control(默认)

//20: Power Path and Reverse Mode Control(默认)

//20: MPPT Control(默认)

//D4: TS Charging Threshold Control(65C~-10C)

//56: TS Charging Region Control(关闭TS)

//00: Charger Mask 1

//00: Charger Mask 2

//00: Fault Mask

//90: ADC Control(开启ADC循环模式)

//08: ADC Channel Control(开启所有ADC通道)

//00: Gate Driver Strength Control

//00: Gate Driver Dead Time Control

//00: Reverse_Mode_Battery_Discharge_Current Register (Address = 0x62)