bq24020, bq24022,
bq24023, bq24024
bq24025, bq24026
SLUS549C − DECEMBER 2002 − REVISED AUGUST 2004
www.ti.com
ELECTRICAL CHARACTERISTICS(continued)
over 0_C
≤
TJ
≤
125_C and recommended supply voltage, unless otherwise noted
PARAMETER
TEST CONDITIONS
t < t(TAPER)
ISET2 = Low
ISET2 = High
MIN
5
6.5
32
235
11
9
44
250
18
TYP
MAX
100
11
55
265
mV
25
mA
UNIT
CHARGE TAPER AND TERMINATION DETECTION
Charge taper detection range, I(TAPER)(3) VI(OUT) > V(RCH),
USB-100 charge taper
detection level
USB-500 charge taper
detection level
bq24026
bq24026
VI(OUT) > V(RCH),
VI(OUT) > V(RCH),
Charge taper detection set voltage,
V(TAPER)
Charge termination detection set voltage,
V(TERM)(4)
Deglitch time for TAPER detection,
tTPRDET
Deglitch time for termination detection,
tTRMDET
TEMPERATURE SENSE COMPARATOR
Low-voltage threshold, V(LTF)
High-voltage threshold, V(HTF)
Current source, I(TS)
Deglitch time for temperature fault, t(DEGL)
BATTERY RECHARGE THRESHOLD
Recharge threshold, VRCH
Deglitch time for recharge detect, t(DEGL)
STAT1, STAT2, and PG OUTPUTS
Low-level output saturation voltage, VOL
Low-level input voltage, VIL
High-level input voltage, VIH
CE, TE or TTE low-level input current, IIL
CE, TE or TTE high-level input current, IIH
ISET2 low-level input current, IIL
ISET2 high-level input current, IIH
ISET2 high-Z input current, IIH
(3)
I
O(TAPER)
+
Voltage on ISET1 pin, VO(REG) = 4.2 V,
VI(OUT) > V(RCH),
t < t(TAPER)
Voltage on ISET pin,
VO(REG) = 4.2 V,
VI(OUT) > V(RCH)
VCC(MIN)
≥
4.5 V,
tFALL = 100 ns
charging current increasing or decreasing above
and below,
10 mV overdrive
VCC(MIN)
≥
4.5 V,
tFALL = 100 ns
charging current decreasing below,
10 mV overdrive
250
375
500
ms
250
375
500
2.475
0.485
96
250
VO(
REG
)
−0.115
VCC(MIN)
≥
4.5 V,
tFALL = 100 ns
decreasing below or increasing above threshold,
10 mV overdrive
250
2.500
0.500
102
375
VO(
REG
)
−0.10
375
2.525
0.515
108
500
VO(
REG
)
−0.085
500
V
µA
ms
V
ms
IO = 5 mA
ISET2, CHARGE ENABLE (CE), TIMER AND TERMINATION ENABLE (TTE), AND TIMER ENABLE (TE) INPUTS
IIL = 10
µA
IIL = 20
µA
0
1.4
−1
0.25
0.4
V
V
1
IISET2 = 0
IISET2 = VCC
−20
40
1
µA
V
K
(SET)
V
(TAPER)
R
SET
4
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