BQ24050 Datasheet, PDF (6/37 Pages) Texas Instruments – 800mA Single Cell Li-Ion Battery Charger With Automatic Adaptor/USB Detection

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SLUS940A – SEPTEMBER 2009 – REVISED SEPTEMBER 2009.................................................................................................................................... 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
C_TS
V_TS-0°C
V_HYS-0°C
Optional Capacitance – ESD
bq24050/2/5 Low temperature CHG
Pending
Hysteresis at 0°C
Low Temp Charging to Pending;
V_TS: 1V → 1.5V
Charge pending to low temp charging; V_TS: 1.5V →
1V
1205
0.22
1230
86
1255
V_TS-10°C
Low temperature, half charge
Normal charging to low temp charging; V_TS: 0.5V
→ 1V
765
790
815
V_HYS-10°C
V_TS-45°C
V_HYS-45°C
V_TS-60°C
V_HYS-60°C
Hysteresis at 10°C
High temperature at 4.1V
Hysteresis at 45°C
High temperature Disable
Hysteresis at 60°C
t_{DGL(TS_10C)}
Deglitch for TS thresholds: 10C.
t_DGL(TS)
Deglitch for TS thresholds: 0/45/60C.
V_TS-EN-10k
Charge Enable Threshold, (10k NTC)
V_{TS-DIS_HYS-10k}
HYS below V_TS-EN-10k to Disable, (10k
NTC)
Low temp charging to normal CHG;
V_TS: 1V → 0.5V
Normal charging to high temp CHG;
V_TS: 0.5V → 0.2V
High temp charging to normal CHG;
V_TS: 0.2V → 0.5V
High temp charge to pending;
V_TS: 0.2V → 0.1V
Charge pending to high temp CHG;
V_TS: 0.1V → 0.2V
Normal to Cold Operation: V_TS: 0.6V → 1V
Cold to Normal Operation: V_TS: 1.0V → 0.6V
Battery charging
V_TS: 0V → 0.175V;
V_TS: 0.125V → 0V;
35
263
278
293
10.7
170
178
186
11.5
50
12
30
80
88
96
12
V_TS-EN-100k
Charge Enable Threshold, (100k
NTC)
V_TS: 0V → 0.175V
140
150
160
V_{TS-DIS_HYS-}
100k
HYS below V_TS-EN-100k to Disable,
(100k NTC)
V_TS: 0.125V → 0V;
50
THERMAL REGULATION
T_J(REG)
Temperature regulation limit
125
T_J(OFF)
Thermal shutdown temperature
155
T_J(OFF-HYS)
Thermal shutdown hysteresis
20
LOGIC LEVELS ON ISET2
V_IL
Logic LOW input voltage
Sink more than 8μA
V_IH
Logic HIGH input voltage
Source more than 8μA
I_IL
Sink current required for LO
I_IH
Source current required for HI
V_FLT
ISET2 Float Voltage
0.4
1.4
2
9
1.1
8
650
900
1200
UNIT
μF
mV
mV
mV
mV
mV
mV
mV
mV
ms
ms
mV
mV
mV
mV
°C
°C
°C
V
V
μA
μA
mV
6
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