BQ24090_12 Datasheet, PDF (3/34 Pages) Texas Instruments – 1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger

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SLUS968D – JANUARY 2010 – REVISED DECEMBER 2012
RECOMMENDED OPERATING CONDITIONS⁽¹⁾
V_IN
I_IN
I_OUT
T_J
R_PRE-TERM
R_ISET
R_TS
IN voltage range
IN operating voltage range, Restricted by V_DPM and V_OVP
Input current, IN pin
Current, OUT pin
Junction temperature
Programs precharge and termination current thresholds
Fast-charge current programming resistor
10k NTC thermistor range without entering BAT_EN or TTDM
(1) Operation with V_IN less than 4.5V or in drop-out may result in reduced performance.
MIN
3.5
4.45
0
1
0.540
1.66
MAX
12
6.45
1.0
1.0
125
10
49.9
258
UNIT
V
V
A
A
°C
kΩ
kΩ
kΩ
ELECTRICAL CHARACTERISTICS
Over junction temperature range 0°C ≤ T_J ≤ 125°C and recommended supply voltage (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
INPUT
UVLO
V_{HYS_UVLO}
V_IN-DT
V_HYS-INDT
t_{DGL(PG_PWR)}
t_{DGL(PG_NO-}
PWR)
V_OVP
t_DGL(OVP-SET)
V_HYS-OVP
t_DGL(OVP-REC)
Undervoltage lock-out Exit
Hysteresis on V_{UVLO_RISE} falling
Input power good detection threshold
is V_OUT + V_IN-DT
Hysteresis on V_IN-DT falling
Deglitch time on exiting sleep.
Deglitch time on V_HYS-INDT power
down. Same as entering sleep.
Input over-voltage protection threshold
Input over-voltage blanking time
Hysteresis on OVP
Deglitch time exiting OVP
V_IN: 0V → 4V Update based on sim/char
V_IN: 4V→0V,
V_{UVLO_FALL} = V_{UVLO_RISE} –V_HYS-UVLO
(Input power good if V_IN > V_OUT + V_IN-DT);
V_OUT = 3.6V, V_IN: 3.5V → 4V
V_OUT = 3.6V, V_IN: 4V → 3.5V
Time measured from V_IN: 0V → 5V 1μs rise-time to
PG = low, V_OUT = 3.6V
Time measured from V_IN: 5V → 3.2V 1μs fall-time to
PG = OC, V_OUT = 3.6V
V_IN: 5V → 7V
V_IN: 5V → 7V
V_IN: 7V → 5V
Time measured from V_IN: 7V → 5V 1μs fall-time to
PG = LO
3.15
175
30
6.5
3.3
227
80
31
45
29
6.65
113
95
30
V_IN-DPM
USB/Adaptor low input voltage
protection. Restricts lout at V_IN-DPM
Feature active in USB mode; Limit Input Source
Current to 50mA; V_OUT = 3.5V; R_ISET = 825Ω
Feature active in Adaptor mode; Limit Input Source
Current to 50mA; V_OUT = 3.5V; R_ISET = 825Ω
4.34
4.24
4.4
4.3
I_IN-USB-CL
USB input I-Limit 100mA
USB input I-Limit 500mA
ISET2 = Float; R_ISET = 825Ω
ISET2 = High; R_ISET = 825Ω
85
92
430
462
ISET SHORT CIRCUIT TEST
R_{ISET_SHORT}
Highest Resistor value considered a Riset: 600Ω → 250Ω, I_OUT latches off. Cycle power to
fault (short). Monitored for Iout>90mA Reset.
280
t_{DGL_SHORT}
Deglitch time transition from ISET
short to Iout disable
Clear fault by cycling IN or TS/BAT_EN
1
I_{OUT_CL}
Maximum OUT current limit Regulation VIN = 5V, VOUT = 3.6V, VISET2 = Low, RISET:
(Clamp)
600Ω → 250Ω, Iout latches off after t_DGL-SHORT
BATTERY SHORT PROTECTION
1.05
V_OUT(SC)
OUT pin short-circuit detection
threshold/ precharge threshold
V_OUT:3V → 0.5V, no deglitch
0.75
0.8
V_OUT(SC-HYS) OUT pin Short hysteresis
Recovery ≥ V_OUT(SC) + V_OUT(SC-HYS); Rising, no
Deglitch
77
I_OUT(SC)
Source current to OUT pin during
short-circuit detection
10
15
MAX UNIT
3.45 V
280 mV
145 mV
mV
μs
ms
6.8 V
μs
mV
μs
4.46
V
4.36
100
mA
500
500 Ω
ms
1.4 A
0.85 V
mV
20 mA
Copyright © 2010–2012, Texas Instruments Incorporated
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