Datasheet

bq24050
bq24052
bq24055
SLUS940B –SEPTEMBER 2009–REVISED JUNE 2012 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C ≤ T
J
≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
C
TS
Optional Capacitance – ESD 0.22 μF
bq24050/2/5 Low temperature CHG Low Temp Charging to Pending;
V
TS-0°C
1205 1230 1255 mV
Pending V
TS
: 1V → 1.5V
Charge pending to low temp charging; V
TS
: 1.5V →
V
HYS-0°C
Hysteresis at 0°C 86 mV
1V
Normal charging to low temp charging; V
TS
: 0.5V
V
TS-10°C
Low temperature, half charge 765 790 815 mV
→ 1V
Low temp charging to normal CHG;
V
HYS-10°C
Hysteresis at 10°C 35 mV
V
TS
: 1V → 0.5V
Normal charging to high temp CHG;
V
TS-45°C
High temperature at 4.1V 263 278 293 mV
V
TS
: 0.5V → 0.2V
High temp charging to normal CHG;
V
HYS-45°C
Hysteresis at 45°C 10.7 mV
V
TS
: 0.2V → 0.5V
High temp charge to pending;
V
TS-60°C
High temperature Disable 170 178 186 mV
V
TS
: 0.2V → 0.1V
Charge pending to high temp CHG;
V
HYS-60°C
Hysteresis at 60°C 11.5 mV
V
TS
: 0.1V → 0.2V
Normal to Cold Operation: V
TS
: 0.6V → 1V 50
t
DGL(TS_10C)
Deglitch for TS thresholds: 10C. ms
Cold to Normal Operation: V
TS
: 1.0V → 0.6V 12
t
DGL(TS)
Deglitch for TS thresholds: 0/45/60C. Battery charging 30 ms
V
TS-EN-10k
Charge Enable Threshold, (10k NTC) V
TS
: 0V → 0.175V; 80 88 96 mV
HYS below V
TS-EN-10k
to Disable, (10k
V
TS-DIS_HYS-10k
V
TS
: 0.125V → 0V; 12 mV
NTC)
Charge Enable Threshold, (100k
V
TS-EN-100k
V
TS
: 0V → 0.175V 140 150 160 mV
NTC)
V
TS-DIS_HYS-
HYS below V
TS-EN-100k
to Disable,
V
TS
: 0.125V → 0V; 50 mV
100k
(100k NTC)
THERMAL REGULATION
T
J(REG)
Temperature regulation limit 125 °C
T
J(OFF)
Thermal shutdown temperature 155 °C
T
J(OFF-HYS)
Thermal shutdown hysteresis 20 °C
LOGIC LEVELS ON ISET2
V
IL
Logic LOW input voltage Sink more than 8μA 0.4 V
V
IH
Logic HIGH input voltage Source more than 8μA 1.4 V
I
IL
Sink current required for LO 2 9 μA
I
IH
Source current required for HI 1.1 8 μA
V
FLT
ISET2 Float Voltage 650 900 1200 mV
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