BQ25700A Datasheet, PDF (42/82 Pages) Texas Instruments – SMBus Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

bq25700A
SLUSCQ8 – MAY 2017
8.6.1.6 ProchotOption1 Register (SMBus address = 34h) [reset = 8120h]
www.ti.com
Figure 22. ProchotOption1 Register (SMBus address = 34h) [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 17. ProchotOption1 Register (SMBus address = 34h) Field Descriptions
SMBus
BIT
15-10
9-8
FIELD
TYPE RESET DESCRIPTION
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
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 18. ProchotOption1 Register (SMBus address = 34h) Field Descriptions
SMBus
BIT
7
FIELD
Reserved
6
PROCHOT
_PROFILE_COMP
TYPE
R/W
R/W
5
PROCHOT
R/W
_PROFILE_ICRIT
4
PROCHOT
R/W
_PROFILE_INOM
3
PROCHOT
R/W
_PROFILE_IDCHG
2
PROCHOT
R/W
_PROFILE_VSYS
1
PROCHOT
R/W
_PROFILE_BATPRES
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.
42
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated