BQ24230 Datasheet, PDF (3/33 Pages) Texas Instruments – USB-FRIENDLY LITHIUM-ION BATTERY CHARGER AND POWER-PATH MANAGEMENT IC

bq24230
bq24232
www.ti.com .......................................................................................................................................... SLUS821A – OCTOBER 2008 – REVISED DECEMBER 2008
RECOMMENDED OPERATING CONDITIONS
IN voltage range
V_I
IN operating voltage range
'230
'232
I_IN
Input current, IN pin
I_OUT
Current, OUT pin
I_BAT
Current, BAT pin (discharging)
I_CHG
Current, BAT pin (charging)
T_J
Junction temperature
R_ILIM Maximum input current programming resistor
R_ISET Fast-charge current programming resistor
R_TMR Timer programming resistor
R_ITERM Termination programming resistor
'232
MIN MAX UNIT
4.35
26 V
4.35 6.4 V
4.35 10.2
500 mA
500 mA
500 mA
500 mA
–40 125 °C
3.1 7.8 kΩ
1.8
36 kΩ
18
72 kΩ
0
15 kΩ
ELECTRICAL CHARACTERISTICS
over operating free-air temperature range (unless otherwise noted)
INPUT
UVLO
V_hys(UVLO)
V_IN(DT)
V_hys(INDT)
t_DGL(PGOOD)
V_OVP
V_hys(OVP)
PARAMETER
Undervoltage lockout
Hysteresis on UVLO
Input power detection threshold
Hysteresis on V_IN(DT)
Deglitch time, input power
detected status
Input overvoltage protection
threshold
Hysteresis on OVP
t_DGL(OVP)
Input overvoltage blanking time
t_REC(OVP)
Input overvoltage recovery time
ILIM, TEST ISET SHORT CIRCUIT
I_SC
Current source
V_SC
QUIESCENT CURRENT
I_BAT(PDWN)
Sleep current into BAT pin
I_IN(STDBY)
Standby current into IN pin
I_CC
POWER PATH
V_DO(IN-OUT)
V_DO(BAT-OUT)
V_O(REG)
Active supply current, IN pin
V_IN – V_OUT
V_BAT – V_OUT
OUT pin voltage regulation
I_INmax
Maximum input current
K_ILIM
I_INmax
Maximum input current factor
Programmable input current limit
range
TEST CONDITIONS
V_IN: 0 V → 4 V
V_IN: 4 V → 0 V
Input power detected when V_IN > V_BAT + V_IN(DT)
V_BAT = 3.6 V, VIN: 3.5 V → 4 V
VBAT = 3.6 V, V_IN: 4 V → 3.5 V
Time measured from V_IN: 0 V → 5 V 1-µs
rise time to PGOOD = LO
('230) V_IN: 5 V → 7 V
('232) V_IN: 5 V → 11 V
('230) V_IN: 7 V → 5V
('232) V_IN: 11 V → 5 V
Time measured from V_IN: 11 V → 5 V 1 µs
fall time to PGOOD = LO
V_IN > UVLO and V_IN > V_BAT+V_IN(DT)
V_IN > UVLO and V_IN > V_BAT+V_IN(DT)
CE = LO or HI, input power not detected, no
load on OUT pin
EN1= HI, EN2=HI, V_IN = 6 V, T_J=85°C
EN1= HI, EN2=HI, V_IN = 10 V, T_J=85°C
CE = LO, V_IN = 6 V, no load on OUT pin,
V_BAT > V_BAT(REG), (EN1, EN2) ≠ (HI, HI)
V_IN = 4.3 V, I_IN = 500 mA, V_BAT = 4.2 V
I_OUT = 500 mA, V_IN = 0 V, V_BAT > 3 V
V_IN > V_OUT + V_{DO (IN-OUT)}
EN1 = LO, EN2 = LO
EN1 = HI, EN2 = LO
EN2 = HI, EN1 = LO
EN2 = HI, EN1 = LO, R_ILIM = 3.1 kΩ to 7.8 kΩ
MIN
TYP
MAX UNIT
3.2
3.3
3.4 V
200
300 mV
55
80
130 mV
20
mV
2
ms
6.4
6.6
6.8
V
10.2
10.5
10.8
110
mV
175
50
µs
2
ms
1.3
mA
520
mV
6.5 µA
50 µA
200
1.5 mA
150.0
4.3
90
450
1320
200
4.4
95
475
K_ILIM/R_ILIM
1470
237.5 mV
62.5 mV
4.5 V
100
mA
500
A
1620 AΩ
500 mA
Copyright © 2008, Texas Instruments Incorporated
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