SLUSAO0H November 2011 – July 2022 BQ24160 , BQ24160A , BQ24161 , BQ24161B , BQ24163 , BQ24168
PRODUCTION DATA
Memory location: 07, Reset state: 1001 1xxx
BIT | NAME | READ/WRITE | FUNCTION |
---|---|---|---|
B7 (MSB) | 2XTMR_EN | Read/Write | 1 – Timer slowed by 2x when in thermal regulation, input current limit, VIN_DPM or
DPPM 0 – Timer not slowed at any time (default 0) (BQ24160/1 only) |
B6 | TMR_1 | Read/Write | Safety Timer Time Limit – 00 – 27 minute fast charge 01 – 6 hour fast charge 10 – 9 hour fast charge 11 – Disable safety timers (default 00) (BQ24160/1 only) |
B5 | TMR_2 | Read/Write | |
B4 | NA | Read/Write | NA |
B3 | TS_EN | Read/Write | 0 – TS function disabled 1 – TS function enabled (default 1) |
B2 | TS_FAULT1 | Read only | TS Fault Mode: 00 – Normal, No TS fault 01 – TS temp < TCOLD or TS temp > THOT (Charging suspended) 10 – TCOOL > TS temp > TCOLD (Charge current reduced by half, BQ24160 only) 11 – TWARM < TS temp < THOT (Charge voltage reduced by 140 mV, BQ24160 only) |
B1 | TS_FAULT0 | Read only | |
B0 (LSB) | LOW_CHG | Read/ Write | 0 – Charge current as programmed in Register 0x05 1 – Charge current is half programmed value in Register 0x05 (default 0) |
2xTMR_EN Bit (2x Timer Enable) | |
The 2xTMR_EN bit is used to slow down the timer when charge current is reduced by the system load. When 2xTMR_EN is a 1, the safety timer is slowed to half speed effectively doubling the timer time. The conditions that activate the 2x timer are: Input Current Limit, VINDPM, Thermal Regulation, LOW_CHG, BATSHRT and TS Cool. When 2xTMR_EN is a 0, the timer operates at normal speed in all conditions. | |
LOW_CHG Bit (Low Charge Mode Enable) | |
The LOW_CHG bit is used to reduce the charge current from the programmed value. This feature is used by systems where battery NTC is monitored by the host and requires a reduced charge current setting or by systems that need a “preconditioning” current for low battery voltages. Write a 1 to this bit to charge at half of the programmed charge current (BQ24160/1/3/8). Write a 0 to this bit to charge at the programmed charge current. |