English
Language : 

BQ27742-G1 Datasheet, PDF (8/46 Pages) Texas Instruments – Single-Cell Li-Ion Battery Fuel Gauge with Programmable Hardware Protection
◁
bq27742-G1
SLUSBV9C – MARCH 2014 – REVISED FEBRUARY 2016
6.5 Power-On Reset
TA = 25°C, CREG25 = 1.0 µF, and VVPWR = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VIT+
VHYS
Increasing battery voltage input at VREG25
Power-on reset hysteresis
6.6 2.5-V LDO Regulator(1)
TA = 25°C, CREG25 = 1.0 µF, and VVPWR = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VREG25
Regulator output voltage
2.8 V ≤ VVPWR ≤ 4.5 V,
IOUT(1) ≤ 16 mA
2.45 V ≤ VVPWR < 2.8 V (low
battery),
IOUT (1) ≤ 3 mA
ISHORT(2) Short-circuit current limit VREG25 = 0 V
TA = –40°C to
85°C
TA = –40°C to
85°C
(1) LDO output current, IOUT, is the sum of internal and external load currents.
(2) Assured by characterization. Not production tested.
6.7 Charger Attachment and Removal Detection
TA = 25°C, CREG25 = 1.0 µF, and VVPWR = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VCHGATT
Voltage threshold for charger attachment
detection
VCHGREM
Voltage threshold for charger removal
detection
6.8 CHG and DSG FET Drive
TA = 25°C, CREG25 = 1.0 µF, and VVPWR = 3.6 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
VFETON
VFETOFF
VFETRIPPLE (1)
CHG and DSG FETs on
CHG and DSG FETs off
CHG and DSG FETs on
tFETON
FET gate rise time
(10% to 90%)
IL = 1 µA
TA = –40°C to 85°C
TA = –40°C to 85°C
IL = 1 µA
TA = –40°C to 85°C
CL = 4 nF
TA = –40°C to 85°C
No series resistance
2 × VVPWR – 0.4
67
tFETOFF
FET gate fall time
(90% to 10%)
CL = 4 nF
TA = –40°C to 85°C
No series resistance
10
(1) Assured by characterization. Not production tested.
www.ti.com
MIN
TYP
MAX UNIT
2.09
2.20
2.31 V
45
115
185 mV
MIN
TYP
MAX UNIT
2.3
2.5
2.6 V
2.3
V
250 mA
MIN
TYP
MAX UNIT
2.7
3.0 V
0.5
1.0
V
TYP
2 × VVPWR – 0.2
MAX
2 × VVPWR
0.2
0.1
UNIT
V
V
VPP
140
218 μs
30
60 μs
8
Submit Documentation Feedback
Product Folder Links: bq27742-G1
Copyright © 2014–2016, Texas Instruments Incorporated
 ▷