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BQ24093 Datasheet(PDF) 5 Page - Texas Instruments

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Part # BQ24093
Description  1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ24093 Datasheet(HTML) 5 Page - Texas Instruments

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bq24090, bq24091
bq24092, bq24093
bq24095
www.ti.com
SLUS968D – JANUARY 2010 – REVISED DECEMBER 2012
ELECTRICAL CHARACTERISTICS (continued)
Over junction temperature range 0°C
≤ TJ ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Elevated termination threshold initially
tTerm-Start
1.25
min
active for tTerm-Start
RECHARGE OR REFRESH
Recharge detection threshold –
VO(REG)
VO(REG)-
VIN = 5V, VTS = 0.5V, VOUT: 4.25V → VRCH
VO(REG)-0.095
V
Normal Temp
-0.120
0.070
VRCH
Recharge detection threshold – Hot
VO(REG)
VO(REG)-
VIN = 5V, VTS = 0.2V, VOUT: 4.15V → VRCH
VO(REG)-0.105
V
Temp
-0.130
0.080
Deglitch time, recharge threshold
VIN = 5V, VTS = 0.5V, VOUT: 4.25V → 3.5V in 1μs;
tDGL1(RCH)
29
ms
detected
tDGL(RCH) is time to ISET ramp
Deglitch time, recharge threshold
VIN = 5V, VTS = 0.5V, VOUT = 3.5V inserted; tDGL(RCH)
tDGL2(RCH)
3.6
ms
detected in OUT-Detect Mode
is time to ISET ramp
BATTERY DETECT ROUTINE
VOUT Reduced regulation during
VO(REG)
VO(REG)-
VREG-BD
VO(REG)-0.400
V
battery detect
-0.450
350
IBD-SINK
Sink current during VREG-BD
VIN = 5V, VTS = 0.5V, Battery Absent
7
10
mA
tDGL(HI/LOW
Regulation time at VREG or VREG-BD
25
ms
REG)
VO(REG)
VO(REG)-
VBD-HI
High battery detection threshold
VIN = 5V, VTS = 0.5V, Battery Absent
VO(REG)-0.100
V
-0.150
0.050
VREG-BD
VREG-BD
VBD-LO
Low battery detection threshold
VIN = 5V, VTS = 0.5V, Battery Absent
VREG-BD +0.1
V
+0.50
+0.15
BATTERY CHARGING TIMERS AND FAULT TIMERS
Restarts when entering Pre-charge; Always enabled
tPRECHG
Pre-charge safety timer value
1700
1940
2250
s
when in pre-charge.
Clears fault or resets at UVLO, TS/BAT_EN disable,
tMAXCH
Charge safety timer value
34000
38800
45000
s
OUT Short, exiting LOWV and Refresh
BATTERY-PACK NTC MONITOR (Note 1); TS pin: 10k and 100k NTC
INTC-10k
NTC bias current, bq24090/2/5
VTS = 0.3V
48
50
52
μA
INTC-100k
NTC bias current, bq24091/3
VTS = 0.3V
4.8
5.0
5.2
μA
10k NTC bias current when Charging
INTC-DIS-10k
VTS = 0V
27
30
34
μA
is disabled, bq24090/2/5
100k NTC bias current when Charging
INTC-DIS-100k
VTS = 0V
4.4
5.0
5.8
μA
is disabled, bq24091/3
INTC is reduced prior to entering
INTC-FLDBK-10k
TTDM to keep cold thermistor from
VTS: Set to 1.525V
4
5
6.5
μA
entering TTDM, bq24090/2/5
INTC is reduced prior to entering
INTC-FLDBK-100k
TTDM to keep cold thermistor from
VTS: Set to 1.525V
1.1
1.5
1.9
μA
entering TTDM, bq24091/3
Termination and timer disable mode
VTTDM(TS)
VTS: 0.5V → 1.7V; Timer Held in Reset
1550
1600
1650
mV
Threshold – Enter
VHYS-TTDM(TS)
Hysteresis exiting TTDM
VTS: 1.7V → 0.5V; Timer Enabled
100
mV
VCLAMP(TS)
TS maximum voltage clamp
VTS = Open (Float)
1800
1950
2000
mV
Deglitch exit TTDM between states
57
ms
tDGL(TTDM)
Deglitch enter TTDM between states
8
μs
INTC adjustment (90 to 10%; 45 to 6.6uS) takes
TS voltage where INTC is reduce to
VTS_I-FLDBK
place near this spec threshold. VTS: 1.425V →
1475
mV
keep thermistor from entering TTDM
1.525V
CTS
Optional Capacitance – ESD
0.22
μF
Low Temp Charging to Pending;
VTS-0°C
Low temperature CHG Pending
1205
1230
1255
mV
VTS: 1.0V → 1.5V
Charge pending to low temp charging;
VHYS-0°C
Hysteresis at 0°C
86
mV
VTS: 1.5V → 1V
Low temperature, half charge,
Normal charging to low temp charging;
VTS-10°C
765
790
815
mV
bq24092/3
VTS: 0.5V → 1V
Low temp charging to normal CHG;
VHYS-10°C
Hysteresis at 10°C, bq24092/3
35
mV
VTS: 1.0V → 0.5V
Normal charging to high temp CHG;
VTS-45°C
High temperature at 4.1V
263
278
293
mV
VTS: 0.5V → 0.2V
Copyright © 2010–2012, Texas Instruments Incorporated
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