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bq24020, bq24022,
bq24023, bq24024
bq24025, bq24026
SLUS549C − DECEMBER 2002 − REVISED AUGUST 2004
ELECTRICAL CHARACTERISTICS(continued)
over 0_C
≤
TJ
≤
125_C and recommended supply voltage, unless otherwise noted
PARAMETER
TIMERS
Precharge time, t(PRECHG)
bq24020
bq24022
bq24023
bq24024
bq24025
bq24020
bq24022
bq24023
bq24024
bq24025,
bq24026
Timer fault recovery current, I(FAULT)
SLEEP COMPARATOR
Sleep-mode entry threshold voltage,
V(SLP)
Sleep mode exit threshold voltage,
V(SLPEXIT)
Sleep mode deglitch time
THERMAL SHUTDOWN THRESHOLDS
Thermal trip threshold, T(SHTDWN)
Thermal hysteresis
UNDERVOLTAGE LOCKOUT
Undervoltage lockout V(UVLO)
Hysteresis
Decreasing VCC
2.4
2.5
27
2.6
V
mV
165
15
°C
2.3 V
≤
VI(OUT)
≤
VO(REG)
2.3 V
≤
VI(OUT)
≤
VO(REG)
AC and USB decreasing below threshold,
tFALL = 100 ns,
10 mV overdrive
VCC
≤
VI(OUT)
+80 mV
VCC
≥
VI(OUT)
+190mV
250
375
500
1,620
1,800
1,930
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Taper time, t(TAPER)
1,620
1,800
1,930
s
16,200
18,000
19,300
Charge time, t(CHG)
22,680
25,200
200
27,720
s
µA
V
ms
(3)
I
O(TAPER)
+
(4)
I
O(TERM)
+
K
(SET)
V
(TAPER)
R
SET
K
(SET)
V
(TERM)
R
SET
5
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