BQ25703A Datasheet, PDF (14/81 Pages) Texas Instruments – I2C Multi-Chemistry Battery Buck-Boost Charge Controller With System Power Monitor and Processor Hot Monitor

bq25703A
SLUSCU1 – MAY 2017
Electrical Characteristics (continued)
over T_J = –40 to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
t_{BATOVP_RISE}
Overvoltage rising deglitch to
turn off BATDRV to disable
charge
CONVERTER OVER-CURRENT COMPARATOR (Q2)
VOCP_limit_Q2
Reg0x32[5]=1
Converter Over-Current Limit
Reg0x32[5]=0
VOCP_limit_SYSSH
ORT_Q2
System Short or SRN<2.5 V
Reg0x32[5]=1
Reg0x32[5]=0
CONVERTER OVER-CURRENT COMPARATOR (ACX)
VOCP_limit_Q3
Reg0x32[4]=1
Converter Over-Current Limit
Reg0x32[4]=0
VOCP_limit_SYSSH
ORT_Q3
System Short or SRN<2.5 V
Reg0x32[4]=1
Reg0x32[4]=0
THERMAL SHUTDOWN COMPARATOR
T_{SHUT_RISE}
Thermal shutdown rising
temperature
Temperature increasing
T_{SHUTF_FALL}
Thermal shutdown falling
temperature
Temperature reducing
T_{SHUT_HYS}
t_{SHUT_RDEG}
Thermal shutdown hysteresis
Thermal shutdown rising
deglitch
t_{SHUT_FHYS}
Thermal shutdown falling
deglitch
VSYS PROCHOT COMPARATOR
Reg0x36[7:6] = 00, 1 s
Reg0x36[7:6] = 00, 2–4 s
Reg0x36[7:6] = 01, 1 s
V_{SYS_PROCHOT}
V_SYS threshold falling
threshold
Reg0x36[7:6] = 01, 2–4 s
Reg0x36[7:6] = 10, 1 s
Reg0x36[7:6] = 10, 2–4 s
Reg0x36[7:6] = 11, 1 s
Reg0x36[7:6] = 11, 2–4 s
t_{SYS_PRO_RISE_DEG}
V_SYS rising deglitch for
throttling
ICRIT PROCHOT COMPARATOR
V_{ICRIT_PRO}
Input current rising threshold Reg0x37[7:3] = 00000
for throttling as 10% above
ILIM2 (REG0x37[7:3])
Reg0x37[7:3] = 01001
INOM PROCHOT COMPARATOR
V_{INOM_PRO}
INOM rising threshold as 10%
above IIN (REG0x0F/0E())
IDCHG PROCHOT COMPARATOR
V_{IDCHG_PRO}
IDCHG threshold for throttling
for IDSCHG of 6 A
Reg0x39[7:2] =001100
INDEPENDENT COMPARATOR
V_{INDEP_CMP}
Independent comparator
threshold
Reg0x30[7] = 1, CMPIN
falling
Reg0x30[7] = 0, CMPIN
falling
14
Submit Documentation Feedback
www.ti.com
MIN
2.95
5.8
105%
142%
105%
95%
1.17
2.27
TYP
MAX UNIT
20
ms
150
mV
210
45
mV
60
150
mV
280
90
mV
150
155
°C
135
°C
20
°C
100
µs
12
ms
2.85
V
5.75
V
3.1
3.25 V
5.95
6.1 V
3.3
V
6.25
V
3.5
V
6.5
V
8
µs
110%
150%
116%
156%
110%
116%
6272
mA
102%
1.2
1.23 V
2.3
2.33 V
Copyright © 2017, Texas Instruments Incorporated