BQ24030 Datasheet, PDF (5/20 Pages) Texas Instruments – SINGLE-CHIP CHARGE AND SYSTEM POWER-PATH MANAGEMENT IC (bqTINYI)

bq24030, bq24032, bq24035
www.ti.com
SLUS618 – AUGUST 2004
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 input current range
V_VCC(min)≥ 4.35 V, V_I(BAT) > V_(LOWV),
V_I(USB) - V_I(BAT) > V_(DO-MAX), ISET2= Low,
80
PSEL = Low⁽¹⁰⁾
V_VCC(min)≥ 4.35 V, V_I(BAT) > V_(LOWV),
V_I(USB) - V_I(BAT) > V_(DO-MAX), ISET2= High,
400
PSEL = Low⁽¹¹⁾
100
mA
500
PRECHARGE and SHORT-CIRCUIT CURRENT REGULATION
V_(LOWV)
Precharge to fast-charge transition
threshold
Voltage on BAT
2.9
3.0
3.1 V
Deglitch time for fast-charge to
precharge transition⁽¹²⁾
I_O(PRECHG)
Precharge range
V_(PRECHG)
Precharge set voltage
Short circuit pull-up, BAT
CHARGE TAPER DETECTION
V_VCC(min)≥ 4.5 V, t_FALL = 100 ns,
10 mV overdrive,
V_I(BAT) decreasing below threshold
1 V < V_I(BAT) < V_(LOWV), t < t_(PRECHG),
I_O(PRECHG) = (K_(SET)× V_(PRECHG))/ R_SET
1 V < V_I(BAT) < V_(LOWV), t < t_(PRECHG)
V_I(BAT)≤ 1 V
22.5
10
230
250
1
ms
150 mA
270 mV
kΩ
I_(TAPER)
V_(TAPER)
Charge taper detection range
Charge taper detection set voltage
Deglitch time for taper detection
V_I(BAT) < V_(RCH),
I_(TAPER) = (K_(SET)× V_(TAPER))/ R_SET
Voltage on ISET1, V_REG(BAT) = 4.2 V,
V_I(BAT) > V_(RCH)
V_VCC(min)≥ 4.5 V, t_FALL = 100 ns,
10 mV overdrive,
I_CHG increasing above or decreasing below
threshold
10
235
250
22.5
150 mA
265 mV
ms
TEMPERATURE SENSE COMPARATORS
V_HTF
V_LTF
I_TS
High voltage threshold
Low voltage threshold
Temperature sense current source
Deglitch time for temperature fault
detection ⁽¹²⁾
V_VCC(min)≥ 4.5 V, 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) ^V
-0.125
Deglitch time for recharge detec-
tion ⁽¹²⁾
V_VCC(min)≥ 4.5 V, R_(TMR) = 50 kΩ,
V_I(BAT) increasing or decreasing below
threshold, 100-ns fall time, 10-mv over-
drive
22.5
ms
STAT1, STAT2. ACPG AND USBPG OUTPUTS
V_OL
Low-level output saturation volt-
age
I_OL = 5 mA
0.25 V
Input leakage current
1
5 µA
ISET2, CE AND PSEL INPUTS
V_IL
Low-level input voltage
V_IH
High-level input voltage
0
0.4
V
1.4
(10) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at
the USB charge rate. In thisconfiguration the specification is 75 mA (min) and 95 mA (max).
(11) With the PSEL= low,the bqTINY-III defaults to USB charging. If USB input is grounded, then thebqTINY-III charges from the AC input at
the USB charge rate. In thisconfiguration the specification is 375 mA (min) and 475 mA (max).
(12) All deglitch periodsare a function of the timer setting.
5