BQ24040 Datasheet, PDF (6/31 Pages) Texas Instruments – 800mA Single-Input Single Cell Li-Ion Battery Charger With Auto Start

bq24040
bq24041
SLUS941A – 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
V_HYS-45°C
V_TS-60°C
V_HYS-60°C
Hysteresis at 45°C
High temperature Disable
Hysteresis at 60°C
t_{DGL(TS_10C)}
Deglitch for TS thresholds: 10C.
t_DGL(TS)
V_TS-EN-10k
V_{TS-DIS_HYS-10k}
Deglitch for TS thresholds: 0/45/60C.
Charge Enable Threshold, (10k NTC)
HYS below V_TS-EN-10k to Disable, (10k
NTC)
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: 1V → 0.6V
Battery charging
V_TS: 0V → 0.175V;
V_TS: 0.125V → 0V;
10.7
170
178
11.5
50
12
30
80
88
12
THERMAL REGULATION
T_J(REG)
Temperature regulation limit
125
T_J(OFF)
Thermal shutdown temperature
155
T_J(OFF-HYS)
Thermal shutdown hysteresis
20
BAT_EN , bq24041
I _{BAT_EN}
Current Sourced out of pin
V_IL
Logic LOW enables charger
V_IH
Logic HIGH disables charger
V_CLAMP
Floating Clamp Voltage
LOGIC LIVELS ON ISET2
V _{BAT_EN} < 1.4 V
Floating BAT_EN pin
2.3
5
0
1.1
1.4
1.6
V_IL
Logic LOW input voltage
V_IH
Logic HIGH input voltage
I_IL
Sink current required for LO
I_IH
Source current required for HI
V_FLT
ISET2 Float Voltage
AUTO START, ASI AND ASO PINS, bq24041
Sink 8 μA
Source 8 μA
V_ISET2 = 0.4V
V_ISET2 = 1.4V
1.4
2
1.1
575
900
V_ASIL
Has 200k Internal Pull-down
V_ASIH
V_ASOL
Auto Start Output Sinks 1mA
V_ASOH
Auto Start Input Sources 1mA
LOGIC LEVELS ON CHG AND PG
1.3
V_OUT - 0.4
V_OL
I_LEAK
Output LOW voltage
Leakage current into IC
I_SINK = 5 mA
V _CHG = 5V, V _PG = 5V
MAX UNIT
mV
186 mV
mV
ms
ms
96 mV
mV
°C
°C
°C
9 μA
0.4 V
6V
1.8 V
0.4 V
V
9 μA
8 μA
1225 mV
0.4 V
0.4 V
0.4 V
1 μA
6
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