用直流电源供电,ACOK有输出 但是会间隔性会断掉充电
寄存器配置为:
/** Charge Current Register(0x14)
** 15-13 12 11 10 9 8 7 6 5-0
** Not in use 4096mA 2048mA 1024mA 512mA 256mA 128mA 64mA Not in use
**/
/** Charge Voltage Register(0x15)
** 15 14 13 12 11 10 9 8 7 6 5 4 3-0
** Not in use 16384mV 8912mV 4096mV 2048mV 1024mV 512mV 256mV 128mV 64mV 32mV 16mv Not in use
**/
/** Input Current Register(0x3F)
** 15-13 12 11 10 9 8 7 6-0
** Not in use 4096mA 2048mA 1024mA 512mA 256mA 128mA Not in use
**/
uint16_t CharegeCurrentConfig = 0x0400;//
uint16_t ChargeVoltageConfig = 0x3000;//
uint16_t InputCurrentConfig = 0x1800;//
uint16_t ChargeOptionConfig = 0x1F00;
Johnsin Tao:
Hi首先波形上确认输入端MOS是否稳定的打开?如果没有问题在检查电路是否触发了什么保护?
user6092171:
回复 Johnsin Tao:
Hi Johnsin Tao:
问题描述我放在附件的word文档里面了 麻烦帮忙给看下
bq24725a充电过流保护问题说明.doc
user6092171:
回复 Johnsin Tao:
Hi Johnsin Tao:
我们调好了bq24725a可以进行充电,但是在没有接入AC时,无法与bq24725a通信时正常的吗?无法读取到芯片ID
Star Xu:
回复 user6092171:
SMBus communication is enabled with the following conditions:
• VVCC is above UVLO;
• VACDET is above 0.6V;