BQ25120_16 Datasheet, PDF (44/68 Pages) Texas Instruments – Highly Integrated Battery Charge Management Solution

BQ25120, BQ25121
SLUSBZ9B – AUGUST 2015 – REVISED MAY 2016
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9.6.12 VIN_DPM and Timers Register
Memory location 0x0Bh, Reset State: 0100 1010 (bq25120)
Figure 34. VIN_DPM and Timers Register
7 (MSB)
6
5
4
3
2
1
0 (LSB)
0
1
0
0
1
0
1
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 23. VIN_DPM and Timers Register
Bit Field
Type
Reset
Description
B7 (MSB) VINDPM_ON
R/W
0
0 - enable VINDPM
1 - disable VINDPM
B6
VINDPM_2
B5
VINDPM_1
B4
VINDPM_0
B3
2XTMR_EN
R/W
1
R/W
0
R/W
0
R/W
1
Input V_{(IN_DPM)} voltage: 400 mV
Input V_{(IN_DPM)} voltage: 200 mV
Input V_{(IN_DPM)} voltage: 100 mV
0 – Timer is not slowed at any time
1 – Timer is slowed by 2x when in any control other than CC or
CV
B2
TMR_1
B1
TMR_0
R/W
0
R/W
1
Safety Timer Time Limit
00 – 30 minute fast charge
01 – 3 hour fast charge
10 – 9 hour fast charge
11 – Disable safety timers
B0 (LSB)
0
The VINDPM threshold is set using the following equation: VINDPM = 4.2 + VINDPM_CODE x 100 mV
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