BQ25890_16 Datasheet, PDF (39/69 Pages) Texas Instruments – Adjustable Voltage USB On-the-Go Boost Mode

www.ti.com
bq25890, bq25892
SLUSC86B – MARCH 2015 – REVISED MAY 2016
9.4.2 REG01
Figure 27. REG01
7
6
5
4
3
2
1
0
0
0
0
0
0
1
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 10. REG01
Bit
Field
7
BHOT[1]
6
BHOT[0]
5
BCOLD
4
VINDPM_OS[4]
3
VINDPM_OS[3]
2
VINDPM_OS[2]
1
VINDPM_OS[1]
0
VINDPM_OS[0]
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
by REG_RST
by Watchdog
by REG_RST
by Watchdog
by REG_RST
by Watchdog
by REG_RST
by REG_RST
by REG_RST
by REG_RST
by REG_RST
Description
Boost Mode Hot Temperature Monitor Threshold
00 – V_BHOT1 Threshold (34.75%) (default)
01 – V_BHOT0 Threshold (Typ. 37.75%)
10 – V_BHOT2 Threshold (Typ. 31.25%)
11 – Disable boost mode thermal protection
Boost Mode Cold Temperature Monitor Threshold
0 – V_BCOLD0 Threshold (Typ. 77%) (default)
1 – V_BCOLD1 Threshold (Typ. 80%)
1600mV
800mV
400mV
200mV
100mV
Input Voltage Limit Offset
Default: 600mV (00110)
Range: 0mV – 3100mV
Minimum VINDPM threshold is clamped at 3.9V
Maximum VINDPM threshold is clamped at 15.3V
When VBUS at noLoad is ≤ 6V, the VINDPM_OS is used
to calculate VINDPM threhold
When VBUS at noLoad is > 6V, the VINDPM_OS multiple
by 2 is used to calculate VINDPM threshold.
Copyright © 2015–2016, Texas Instruments Incorporated
Product Folder Links: bq25890 bq25892
Submit Documentation Feedback
39