BQ24030 Datasheet, PDF (4/20 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYI)

bq24030, bq24032, bq24035
SLUS618 – AUGUST 2004
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over junction temperature range (0°C ≤ T_J≤ 125°C) and the recommended supply voltage range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX UNIT
SF
DPPM scale factor
DPPM disable set point
V_(DPPM-REG)= V_(DPPM-SET)× SF
1.139
1.8
1.150
2.0
1.162
V
2.2
V_(ACDO)
V_(usbDO)
AC to OUT dropout voltage⁽⁵⁾
USB to OUT dropout voltage
Enter battery supplement mode
(battery supplements OUT current
in the presence of input source
V_I(AC)≥ V_CC(min), PSEL=High,
I_I(AC) = 1 A, (I_O(OUT)+I_O(BAT))
V_I(USB)≥ V_CC(min), PSEL=Low, ISET2 =
High
I_I(USB) = 0.4 A, (I_O(OUT)+I_O(BAT))
V_I(USB)≥ V_CC(min), PSEL=Low, ISET2 = Low
I_I(USB) = 0.08 A, (I_O(OUT)+I_O(BAT))
V_I(BAT)> 2 V
V_I(OUT)≤
V_I(BAT)- 60
mV
Exit battery supplement mode
V_I(BAT)> 2 V
300
475
140
180 mV
28
36
V
V_I(OUT)≥
V_I(BAT)- 20
mV
Series resistor between BAT to OUT for
BAT to OUT short circuit recovery short circuit recovery to
V_I(OUT)≤ V_I(BAT) -200mV
AC to OUT short circuit limit
V_I(OUT)≤ 1 V
USB to OUT short circuit limit
V_I(OUT)≤ 1 V
BATTERY CHARGE VOLTAGE REGULATION, V_{O (BAT-REG)} + V _(DO-MAX) < V_CC, I_TERM < I_BAT(OUT)≤ 1 A
V_O(BAT-REG) Battery charge voltage
Battery charge voltage regulation ^TA ^{= 25°C}
accuracy
--0.5%
-1%
10
mA
500
Ω
500
4.2
V
0.5%
1%
V_(DO)
BAT to OUT dropout voltage
(discharging)
V_{I (BAT)}≥ 3 V, I_i(BAT)= 1.0 A, V_CC < V_i(BAT)
30
100
V_(DO)
USB dropout voltage
CURRENT REGULATION
3.0 V ≤ V_O(BAT) < V_O(BAT-REG) , I_I(BAT) = 1
A,
1 A current source on AC input,
V_I(DPPM) < 2.2 V
mV
30
100
I_O(BAT)
AC battery charge current range
(6) (7)
AC to OUT and USB to OUT
short-circuit pull-up
V_VCC≥ 4.35 V, V_{i (BAT)} > V_(LOWV),
V_I(OUT) - V_{I (BAT)} > V_(DO-MAX), PSEL = High
I_OUT(BAT) = (K_(SET)× V_(SET) / R_SET),
V_I(OUT) < 1 V
100
1000
1500 mA
500
Ω
V_(SET)
K_(SET)
Battery charge current set volt-
age ⁽⁸⁾
Charge current set factor, BAT
Voltage on ISET1, V_VCC≥ 4.35 V,
V_I(OUT)- V_I(BAT) > V_(DO-MAX), V_I(BAT) >
V_(LOWV)
100 mA ≤ I_O(BAT)≤ 1 A
10 mA ≤ I_O(BAT)≤ 100 mA⁽⁹⁾
2.475
400
300
2.500
425
450
2.525 V
450
600
(5) V_DO(max), dropout voltage is a function of the FET,R_DS(on), and drain current. the dropoutvoltage increases proportionally to the increase
in current.
(6) When input currentremains below 2 A, the battery charging current may be raised until the thermalregulation limits the charge current.
(7) When PSEL is pulledlow, and USBPG is high, the AC inputfunctions as a USB input.
(8) For half-chargerate, V_(SET) is 1.25 V ± 25mV.
(9) Specification is formonitoring charge current via the ISET1 pin during voltage regulation mode, notfor a reduced fast charge level.
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