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| BQ24040_16 Datasheet, PDF (8/38 Pages) Texas Instruments – Single Cell Li-Ion and Li-Pol Battery Charger With Auto Start | |||
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bq24040, bq24041, bq24045
SLUS941F â SEPTEMBER 2009 â REVISED MARCH 2015
Electrical Characteristics (continued)
Over junction temperature range 0°C ⤠TJ ⤠125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
BATTERY-PACK NTC MONITOR; TS Terminal: bq24040 / bq24045: 10k NTC
INTC-10k
INTC-DIS-10k
NTC bias current
10k NTC bias current when Charging is
disabled.
VTS = 0.3V
VTS = 0V
48
50
27
30
INTC-FLDBK-10k
INTC is reduced prior to entering TTDM to
keep cold thermistor from entering TTDM
VTS: Set to 1.525V
4
5
VTTDM(TS)
Termination and timer disable mode
Threshold â Enter
VTS: 0.5V â 1.7V; Timer Held in Reset
1550
1600
VHYS-TTDM(TS)
VCLAMP(TS)
VTS_I-FLDBK
CTS
VTS-0°C
Hysteresis exiting TTDM
TS maximum voltage clamp
TS voltage where INTC is reduce to keep
thermistor from entering TTDM
Optional Capacitance â ESD
Low temperature CHG Pending
VHYS-0°C
Hysteresis at 0°C
VTS-10°C
Low temperature, half charge
VHYS-10°C
Hysteresis at 10°C
VTS-45°C
High temperature at 4.1V
VHYS-45°C
Hysteresis at 45°C
VTS-60°C
High temperature Disable
VHYS-60°C
Hysteresis at 60°C
VTS-EN-10k
Charge Enable Threshold, (10k NTC)
VTS-DIS_HYS-10k
HYS below VTS-EN-10k to Disable, (10k NTC)
THERMAL REGULATION
VTS: 1.7V â 0.5V; Timer Enabled
VTS = Open (Float)
INTC adjustment (90 to 10%; 45 to 6.6uS) takes place
near this spec threshold.
VTS: 1.425V â 1.525V
Low Temp Charging to Pending;
VTS: 1V â 1.5V
Charge pending to low temp charging;
VTS: 1.5V â 1V
Normal charging to low temp charging;
VTS: 0.5V â 1V
Low temp charging to normal CHG;
VTS: 1V â 0.5V
Normal charging to high temp CHG;
VTS: 0.5V â 0.2V
High temp charging to normal CHG;
VTS: 0.2V â 0.5V
High temp charge to pending;
VTS: 0.2V â 0.1V
Charge pending to high temp CHG;
VTS: 0.1V â 0.2V
VTS: 0V â 0.175V;
VTS: 0.125V â 0V;
1800
1205
765
263
170
80
100
1950
1475
0.22
1230
86
790
35
278
10.7
178
11.5
88
12
TJ(REG)
Temperature regulation limit
125
TJ(OFF)
Thermal shutdown temperature
155
TJ(OFF-HYS)
Thermal shutdown hysteresis
20
BAT_EN , bq24041
I BAT_EN
Current Sourced out of terminal
VIL
Logic LOW enables charger
VIH
Logic HIGH disables charger
VCLAMP
Floating Clamp Voltage
LOGIC LIVELS ON ISET2
V BAT_EN < 1.4 V
Floating BAT_EN terminal
2.3
5
0
1.1
1.4
1.6
VIL
Logic LOW input voltage
VIH
Logic HIGH input voltage
IIL
Sink current required for LO
IIH
Source current required for HI
VFLT
ISET2 Float Voltage
AUTO START, ASI AND ASO TERMINALS, bq24041
Sink 8 μA
Source 8 μA
VISET2 = 0.4V
VISET2 = 1.4V
1.4
2
1.1
575
900
VASIL
Has 200k Internal Pull-down
VASIH
VASOL
Auto Start Output Sinks 1mA
VASOH
Auto Start Input Sources 1mA
LOGIC LEVELS ON CHG AND PG
1.3
VOUT - 0.4
VOL
ILEAK
Output LOW voltage
Leakage current into IC
ISINK = 5 mA
V CHG = 5V, VPG = 5V
www.ti.com
MAX UNIT
52 μA
34 μA
6.5 μA
1650 mV
mV
2000 mV
mV
μF
1255 mV
mV
815 mV
mV
293 mV
mV
186 mV
mV
96 mV
mV
°C
°C
°C
9 μA
0.4
V
6
V
1.8
V
0.4
V
V
9 μA
8 μA
1225 mV
0.4
V
V
0.4
V
V
0.4
V
1 µA
8
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Copyright © 2009â2015, Texas Instruments Incorporated
Product Folder Links: bq24040 bq24041 bq24045
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