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bq24020

,, bq24022,, bq24023

bq24024, bq24025, bq24026

bq24027

SLUS549D – DECEMBER 2002 – REVISED MARCH 2006

ELECTRICAL CHARACTERISTICS (continued)

over 0°C

≤ T

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

BATTERY RECHARGE THRESHOLD

Recharge threshold

V

– 0.115

– 0.10

– 0.085

250

375

500

Deglitch time for recharge detect

below or increasing above threshold,

ms

10 mV overdrive

STAT1, STAT2, and PG OUTPUTS

0.25

V

ISET2, CHARGE ENABLE (CE), TIMER AND TERMINATION ENABLE (TTE), AND TIMER ENABLE (TE) INPUTS

Low-level input voltage

0

0.4

V

High-level input voltage

1.4

CE, TE or TTE low-level

–1

input current

CE, TE or TTE high-level

1

µA

input current

ISET2 low-level input current

–20

ISET2 high-level input current

40

ISET2 high-Z input current

1

V

TIMERS

Precharge time

1,620

1,800

1,930

bq24020

1,620

1,800

1,930

bq24022

Taper time

bq24023

bq24024

bq24025

s

bq24020

16,200

18,000

19,300

bq24022

bq24023

bq24024

Charge time

bq24025

22,680

25,200

27,720

bq24026

bq24027

Timer fault recovery current

200

µA

SLEEP COMPARATOR

Sleep-mode entry

2.3 V

≤ V

threshold voltage

+80 mV

V

Sleep mode exit

2.3 V

≤ V

threshold voltage

+190mV

AC and USB decreasing below threshold,

Sleep mode deglitch time

250

375

500

ms

THERMAL SHUTDOWN THRESHOLDS

Thermal trip threshold

165

°C

Thermal hysteresis

15

UNDERVOLTAGE LOCKOUT

Undervoltage lockout

2.4

2.5

2.6

V

Hysteresis

27

mV

5

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