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bq25703a 需要用5V3A的充电器充电,充电电流要能够达到3A,请问该如何设置寄存器

以下是我插上充电器,读出来的所有寄存器值。但是实际充电电流只有704mA

REG0x0 : 0x20e
REG0x2 : 0xb80
 REG0x4 : 0x2200
REG0x6 : 0x200
REG0x8 : 0xa00
REG0xa : 0x0
REG0xc : 0x1600
REG0xe : 0x2800
REG0x20 : 0xac00
REG0x22 : 0x0
REG0x24 : 0x2800
REG0x26 : 0x1400
REG0x28 : 0xb00
REG0x2a : 0x2600
[REG0x2c : 0x5655
REG0x2e : 0x7840
REG0x30 : 0x210
REG0x32 : 0x2b7
REG0x34 : 0x0
REG0x36 : 0x4a54
REG0x38 : 0x8120
REG0x3a : 0xa0ff

以下是一些log:

[ 141.364117] c3 523 battery charge current: 704mA
[ 141.364379] c3 523 battery discharge current: 0mA
[ 141.364639] c3 523 VSYS volatge: 8384mV
[ 141.364899] c3 523 BAT volatge: 8320mV
[ 141.365220] c3 523 SET CHARGE_CURRENT: 2944mA
[ 141.365478] c3 523 MAX_CHARGE_VOLTAGE: 8704mV
[ 141.365742] c3 523 INPUT_VOLTAGE: 3200mV
[ 141.366000] c3 523 INPUT_CURRENT: 2000mA
[ 141.366364] c3 523 MIN_SYS_VOTAGE: 6656mV
[ 141.370204] c2 523 status:
[ 141.370212] c2 523 AC_STAT: 1
[ 141.370218] c2 523 ICO_DONE: 0
[ 141.370223] c2 523 IN_VINDPM: 0
[ 141.370229] c2 523 IN_IINDPM: 1
[ 141.370234] c2 523 IN_FCHRG: 1
[ 141.370243] c2 523 IN_PCHRG: 0
[ 141.370249] c2 523 IN_OTG: 0
[ 141.370258] c2 523 F_ACOV: 0
[ 141.370263] c2 523 F_BATOC: 0
[ 141.370269] c2 523 F_ACOC: 0
[ 141.370274] c2 523 SYSOVP_STAT: 0
[ 141.370280] c2 523 F_LATCHOFF: 0
[ 141.370289] c2 523 F_OTGOVP: 0
[ 141.370295] c2 523 F_OTGOCP: 0

Star Xu:

您好,您的电池如果是2串的,8320mv电池接近充饱,电流达不到3A是正常的,建议您将电池放空再试一下

user6428118:

回复 Star Xu:

请看如下log。6.8V(不接负载)的电池,充电电流也只有1280mA。理论上,5V3A的充电适配器,在目前的寄存器配置下,适配器端输出的应该是5V/3A,进电池的电流应该是2A左右。但是现在适配器端输出的电压是5V/2.4A,进电池的电流只有1280mA。请帮我检查下,我的寄存器是否有问题。 另外,为什么[ 141.370229] c2 523 IN_IINDPM: 1?

110[10-09 08:29:18.978] <3>[75.404715] c473 battery charge current: 1280mA
111[10-09 08:29:18.978] <3>[75.405023] c473 battery discharge current: 0mA
112[10-09 08:29:18.978] <3>[75.405328] c473 VSYS volatge: 7232mV
113[10-09 08:29:18.978] <3>[75.405657] c473 BAT volatge: 7168mV
114[10-09 08:29:18.978] <3>[75.405969] c573 SET CHARGE_CURRENT: 2944mA
115[10-09 08:29:18.978] <3>[75.406272] c573 MAX_CHARGE_VOLTAGE: 8704mV
116[10-09 08:29:18.978] <3>[75.406655] c373INPUT_VOLTAGE: 3200mV
118[10-09 08:29:18.978] <3>[75.406946] c573INPUT_CURRENT: 3000mA
119[10-09 08:29:18.978] <3>[75.407224] c573MIN_SYS_VOTAGE: 6656mV

user6428118:

回复 Star Xu:

请问电流达不到3A是否与IN_IINDPM 的值为1有关

Star Xu:

回复 user6428118:

您好, IINDPM设置以后,在 boost mode 输入电流 > charge current, so it would be a good idea to monitor the input current to see if it is being regulated

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