BQ25703A Datasheet, PDF (43/81 Pages) Texas Instruments – I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

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8.6.1.6 ProchotOption1 Register (I2C address = 39h/38h) [reset = 8120h]
bq25703A
SLUSCU1 – MAY 2017
Figure 28. ProchotOption1 Register (I2C address = 39h/38h) [reset = 8120h]
15-10
IDCHG_VTH
R/W
9-8
IDCHG_DEG
R/W
7
6
5
4
Reserved
PROCHOT_PR
OFILE_IC
PP_ICRIT
PP_INOM
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
3
PP_IDCHG
R/W
2
PP_VSYS
R/W
1
PP_BATPRES
R/W
0
PP_ACOK
R/W
Table 15. ProchotOption1 Register (I2C address = 39h) Field Descriptions
I2C
39h
FIELD
TYPE RESET DESCRIPTION
7-2 IDCHG_VTH
R/W
000000b _{IDCHG Threshold}
6 bit, range, range 0 A to 32256 mA, step 512 mA.
Measure current between SRN and SRP.
Trigger when the discharge current is above the threshold.
If the value is programmed to 0 mA, PROCHOT is always triggered.
Default: 16384 mA or 100000
1-0 IDCHG_DEG
R/W
01b
IDCHG Deglitch Time
00b: 1.6 ms
01b: 100 µs <default at POR>
10b: 6 ms
11b: 12 ms
Table 16. ProchotOption1 Register (I2C address = 38h) Field Descriptions
I2C
38h
FIELD
7 Reserved
6 PROCHOT
_PROFILE_COMP
5 PROCHOT
_PROFILE_ICRIT
4 PROCHOT
_PROFILE_INOM
3 PROCHOT
_PROFILE_IDCHG
2 PROCHOT
_PROFILE_VSYS
1 PROCHOT
_PROFILE_BATPRES
TYPE
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RESET
0b
0b
1b
0b
0b
0b
0b
DESCRIPTION
Reserved
PROCHOT Profile
When all the REG0x34[6:0] bits are 0, PROCHOT function is disabled.
Bit6 Independent comparator
0b: disable <default at POR>
1b: enable
0b: disable
1b: enable <default at POR>
0b: disable <default at POR>
1b: enable
0b: disable <default at POR>
1b: enable
0b: disable <default at POR>
1b: enable
0b: disable <default at POR>
1b: enable (one-shot falling edge triggered)
If BATPRES is enabled in PROCHOT after the battery is removed, it will
immediately send out one-shot PROCHOT pulse.
Copyright © 2017, Texas Instruments Incorporated
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