Other Parts Discussed in Thread: CSD17308Q3
Hi,
I have BQ25700A on my board design, with bettery protector MAX16914AUB. Battery protection work just fine but my BQ is not working properly.
It is portable charger with specs:
VCC 10-15 V
Vbat 16.8 V
Icharge=2 or 4A
I communicate with BQ in my PIC controller, communication works fine i can read output voltage, device ID etc.
Config with a send to BQ
send(0x12, 0x20e); //
send(0x14, 0x8800); // CH_LIM
send(0x15, 0x3e80); // CH_VOUT
//send(0x3B,0x00);
// send(0x3C,0x00);
send(0x3D, 0x3DC0); // V_IN_MAX
send(0x3E, 0x2800); // U_IN_MIN
send(0x3F, 0x7F00); // I_IN_MAX
send(0x30, 0x9001); // CH1
send(0x31, 0xC040); //CH2
send(0x32,0x0000); //CH3
send(0x33, 0x0000); //Prochot 0
send(0x34, 0x007E); //Prochot 1
send(0x35, 0xe0ff); // ADC
When Battery is not connected Vout is 10V, its strange because i set 16V. When i connected battery Vout=Vbattery.
When i connect Vout and resistor 11Ohm without battery i gave 0.1A input current and 3.7Vout
Thanks for reply :)
