BQ24090_12 Datasheet, PDF (5/34 Pages) Texas Instruments – 1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger

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bq24090, bq24091
bq24092, bq24093
bq24095
SLUS968D – JANUARY 2010 – REVISED DECEMBER 2012
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
t_Term-Start
Elevated termination threshold initially
active for t_Term-Start
RECHARGE OR REFRESH
1.25
V_RCH
Recharge detection threshold –
Normal Temp
Recharge detection threshold – Hot
Temp
V_IN = 5V, V_TS = 0.5V, V_OUT: 4.25V → V_RCH
V_IN = 5V, V_TS = 0.2V, V_OUT: 4.15V → V_RCH
V_O(REG)
-0.120
V_O(REG)
-0.130
V_O(REG)-0.095
V_O(REG)-0.105
V_O(REG)-
0.070
V_O(REG)-
0.080
t_DGL1(RCH)
Deglitch time, recharge threshold
detected
V_IN = 5V, V_TS = 0.5V, V_OUT: 4.25V → 3.5V in 1μs;
t_DGL(RCH) is time to ISET ramp
29
t_DGL2(RCH)
Deglitch time, recharge threshold
detected in OUT-Detect Mode
V_IN = 5V, V_TS = 0.5V, V_OUT = 3.5V inserted; t_DGL(RCH)
is time to ISET ramp
3.6
BATTERY DETECT ROUTINE
V_REG-BD
VOUT Reduced regulation during
battery detect
V_O(REG)
-0.450
V_O(REG)-0.400
V_O(REG)-
350
I_BD-SINK
t_DGL(HI/LOW
REG)
V_BD-HI
Sink current during V_REG-BD
Regulation time at V_REG or V_REG-BD
High battery detection threshold
V_IN = 5V, V_TS = 0.5V, Battery Absent
V_IN = 5V, V_TS = 0.5V, Battery Absent
7
25
V_O(REG)
-0.150
V_O(REG)-0.100
10
V_O(REG)-
0.050
V_BD-LO
Low battery detection threshold
V_IN = 5V, V_TS = 0.5V, Battery Absent
V_REG-BD
+0.50
V_REG-BD +0.1
V_REG-BD
+0.15
BATTERY CHARGING TIMERS AND FAULT TIMERS
t_PRECHG
Pre-charge safety timer value
Restarts when entering Pre-charge; Always enabled
when in pre-charge.
1700
1940
2250
t_MAXCH
Charge safety timer value
Clears fault or resets at UVLO, TS/BAT_EN disable,
OUT Short, exiting LOWV and Refresh
34000
38800
45000
BATTERY-PACK NTC MONITOR (Note 1); TS pin: 10k and 100k NTC
I_NTC-10k
I_NTC-100k
I_NTC-DIS-10k
NTC bias current, bq24090/2/5
NTC bias current, bq24091/3
10k NTC bias current when Charging
is disabled, bq24090/2/5
V_TS = 0.3V
V_TS = 0.3V
V_TS = 0V
48
50
52
4.8
5.0
5.2
27
30
34
I_NTC-DIS-100k
100k NTC bias current when Charging
is disabled, bq24091/3
V_TS = 0V
4.4
5.0
5.8
I_{NTC-FLDBK-10k}
INTC is reduced prior to entering
TTDM to keep cold thermistor from
entering TTDM, bq24090/2/5
V_TS: Set to 1.525V
4
5
6.5
INTC is reduced prior to entering
I_{NTC-FLDBK-100k} TTDM to keep cold thermistor from
entering TTDM, bq24091/3
V_TS: Set to 1.525V
1.1
1.5
1.9
V_TTDM(TS)
Termination and timer disable mode
Threshold – Enter
V_TS: 0.5V → 1.7V; Timer Held in Reset
1550
1600
1650
V_HYS-TTDM(TS)
V_CLAMP(TS)
t_DGL(TTDM)
Hysteresis exiting TTDM
TS maximum voltage clamp
Deglitch exit TTDM between states
Deglitch enter TTDM between states
V_TS: 1.7V → 0.5V; Timer Enabled
V_TS = Open (Float)
1800
100
1950
57
8
2000
V_{TS_I-FLDBK}
TS voltage where INTC is reduce to
keep thermistor from entering TTDM
INTC adjustment (90 to 10%; 45 to 6.6uS) takes
place near this spec threshold. V_TS: 1.425V →
1.525V
1475
C_TS
V_TS-0°C
V_HYS-0°C
V_TS-10°C
V_HYS-10°C
V_TS-45°C
Optional Capacitance – ESD
Low temperature CHG Pending
Hysteresis at 0°C
Low temperature, half charge,
bq24092/3
Hysteresis at 10°C, bq24092/3
High temperature at 4.1V
Low Temp Charging to Pending;
V_TS: 1.0V → 1.5V
Charge pending to low temp charging;
V_TS: 1.5V → 1V
Normal charging to low temp charging;
V_TS: 0.5V → 1V
Low temp charging to normal CHG;
V_TS: 1.0V → 0.5V
Normal charging to high temp CHG;
V_TS: 0.5V → 0.2V
1205
765
263
0.22
1230
86
790
35
278
1255
815
293
UNIT
min
V
V
ms
ms
V
mA
ms
V
V
s
s
μA
μA
μA
μA
μA
μA
mV
mV
mV
ms
μs
mV
μF
mV
mV
mV
mV
mV
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