BQ24030_07 Datasheet, PDF (6/38 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINY)

bq24030, bq24031, bq24032A
bq24035, bq24038
SLUS618F – AUGUST 2004 – REVISED NOVEMBER 2006
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
USB PIN INPUT CURRENT REGULATION
I_(USB)
USB input current range,
bq24030/32A/35/38 ⁽¹¹⁾
V_I(BAT) > V_(LOWV),
V_I(USB) - V_I(BAT) > V_(DO-MAX), ISET2= Low,
PSEL = Low, or no AC ⁽¹²⁾
V_I(BAT) > V_(LOWV),
V_I(USB) - V_I(BAT) > V_(DO-MAX), ISET2= High,
400
PSEL = Low, or no AC ⁽¹¹⁾
100
mA
500
BAT PIN CHARGING VOLTAGE REGULATION, V_{O (BAT-REG)} + V _(DO-MAX) < V_CC, I_TERM < I_BAT(OUT) ≤ 1 A
bq24030/32A/35
V_O(BAT-REG)
Battery
charge
voltage
bq24031
bq24038
VBSEL = HI
VBSEL = LO
4.2
4.1
V
4.36
4.2
Battery charge voltage regulation ^TA ^{= 25°C}
accuracy
–0.5%
–1%
0.5%
1%
CHARGE TERMINATION DETECTION
I_(TERM)
V_(TERM-AC)
Charge termination detection
range
AC-charge termination detection
voltage, measured on ISET1
V_I(BAT) < V_(RCH),
I_(TERM) = (K_(SET) × V_(TERM))/ R_SET
V_I(BAT) > V_(RCH) , PSEL = High,
ACPG = Low
10
150 mA
235
250
265 mV
V_(TAPER-USB)
USB-charge termination detection V_I(BAT) > V_(RCH), PSEL = Low or
voltage, measured on ISET1
PSEL = High and ACPG = High
95
100
130 mV
T_DGL(TERM)
Deglitch time for termination
detection
t_FALL = 100 ns, 10 mV overdrive,
I_CHG increasing above or decreasing
below threshold
22.5
ms
TEMPERATURE SENSE COMPARATORS
V_LTF
V_HTF
I_TS
T_DGL(TF)
High voltage threshold
Temp fault at V(TS) > V_LTF
Low voltage threshold
Temp fault at V(TS) < V_HTF
Temperature sense current source
Deglitch time for temperature fault
detection ⁽¹³⁾
R_(TMR) = 50 kΩ, V_I(BAT) increasing or
decreasing above and below;
100-ns fall time, 10-mv overdrive
2.465
0.485
94
2.500
0.500
100
22.5
2.535
V
0.515
V
106
µA
ms
BATTERY RECHARGE THRESHOLD
V_RCH
Recharge threshold voltage
V_O(BAT-REG)
–0.075
V_O(BAT-REG)
–0.100
V_O(BAT-REG)
–0.125
V
T_DGL(RCH)
Deglitch time for recharge
detection ⁽¹³⁾
R_(TMR) = 50 kΩ, V_I(BAT) increasing
or decreasing below threshold,
100-ns fall time, 10-mv overdrive
22.5
ms
(11) With the PSEL= low, the bqTINY III-series defaults to USB charging. If USB input is ≤ V_BAT, then the bqTINY III-series charges from the
AC input at the USB charge rate. In this configuration, the specification is 400 mA (min) and 500 mA (max).
(12) With the PSEL= low, the bqTINY III-series defaults to USB charging. If USB input is ≤ V_BAT, then the bqTINY III-series charges from the
AC input at the USB charge rate. In this configuration, the specification is 80 mA (min) and 100 mA (max).
(13) All deglitch periods are a function of the timer setting and is modified in DPPM or thermal regulation modes by the percentages that the
program current is reduced.
6
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