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BQ24232HA Datasheet, PDF (7/36 Pages) Texas Instruments – USB-Friendly Lithium-Ion Battery Charger
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bq24232HA
SLUSCG4 – MAY 2016
Electrical Characteristics (continued)
over junction temperature range –5°C ≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
BATTERY CHARGER
IBAT(SC)
Source current for BAT pin VBAT = 1.5 V
short-circuit detection
4
8.15
11
VBAT(SC)
BAT pin short-circuit
detection threshold
VBAT rising
1.6
1.8
2
VBAT(REG)
VLOWV
Battery charge voltage
Precharge to fast-charge
transition threshold
VIN > UVLO and VIN > VBAT + VIN(DT)
4.25
4.31
4.35
2.9
3
3.1
ICHG
Battery fast-charge current
range
Battery fast-charge current
VBAT(REG) > VBAT > VLOWV, VIN = 5 V, CE = LO, EN1 = LO, EN2 =
HI
CE = LO, EN1= LO, EN2 = HI,
VBAT > VLOWV, VIN = 5 V, IINmax > ICHG, no load on OUT pin,
thermal loop and DPM loop not active
25
500
KISET/RISET
KISET
KIPRECHG
ITERM
Fast-charge current factor
Precharge current factor
Termination comparator
threshold for termination
detection
25 mA ≥ ICHG≥ 500 mA
2.5 mA ≥ IPRECHG≥ 30 mA
CE = LO, (EN1,EN2) ≠ (LO,LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop
not active
CE = LO, (EN1,EN2) = (LO,LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop
not active
797
870
70
88
0.09 ×
ICHG
0.1 × ICHG
0.027 ×
ICHG
0.033 ×
ICHG
975
106
0.11 ×
ICHG
0.040 ×
ICHG
ITERM
Termination current
threshold factor
ITERM = 0% to 50% of ICHG
KITERM × RITERM / RISET
IBIAS(ITERM)
Current for external
termination-setting resistor
72
75
78
KITERM
K factor for termination
detection threshold
(externally set)
CE = LO, (EN1,EN2) ≠ (LO,LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop
not active
CE = LO, (EN1,EN2) = (LO,LO),
VBAT > VRCH, t < tMAXCH, VIN = 5 V, DPM loop and thermal loop
not active
0.024
0.030
0.036
0.009
0.010
0.011
VRCH
Recharge detection
threshold
VIN > UVLO and VIN > VBAT+VIN(DT)
VBAT(REG)
–140 mV
VBAT(REG)
–100 mV
VBAT(REG)
–60 mV
IBAT(DET)
Sink current for battery
detection
VBAT=2.5 V
5
7.5
10
BATTERY-PACK NTC MONITOR(1)
INTC
VHOT
VHYS(HOT)
VCOLD
VHYS(COLD)
VDIS(TS)
NTC bias current
High-temperature trip point
Hysteresis on high trip point
Low-temperature trip point
Hysteresis on low trip point
TS function disable
threshold
VIN > UVLO and VIN > VBAT+VIN(DT)
Battery charging, VTS Falling
Battery charging, VTS Rising from VHOT
Battery charging, VTS Rising
Battery charging, VTS Falling from VCOLD
TS unconnected
72
270
2000
75
300
30
2100
300
VIN – 200
mV
79
330
2200
THERMAL REGULATION
TJ(REG)
Temperature regulation limit
125
TJ(OFF)
Thermal shutdown
temperature
TJ rising
155
TJ(OFF-HYS)
Thermal shutdown
hysteresis
20
UNIT
mA
V
V
V
mA
A
AΩ
AΩ
A
A
μA
A
V
mA
μA
mV
mV
mV
mV
V
°C
°C
°C
(1) These numbers set trip points of 0°C and 50°C while charging, with 3°C hysteresis on the trip points, with a Vishay Type 2 curve NTC
with an R25 of 10 kΩ.
Copyright © 2016, Texas Instruments Incorporated
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