bq24702, bq24703

SLUS553D − MAY 2003 − REVISED JULY 2005

5

www.ti.com

ELECTRICAL CHARACTERISTICS

(−40

°C ≤ TJ ≤ 125°C, 7.0 VDC ≤ VCC ≤ 28 VDC, all voltages relative to Vss) (unless otherwise specified)

Quiescent Current

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IDD(OP)

Total chip operating current

ACPRES = High, EN = 0

1

1.6

6

mA

IDD(SLEEP) Total battery sleep current, ac not present

ACPRES = Low

22

28

µA

logic interface dc characteristics

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

VOL

Low-level output voltage (ACPRES, ALARM)

IOL = 1 mA

0.4

V

VIL

Low-level input voltage (ACSEL, ENABLE)

0.6

V

VIH

High-level input voltage (ACSEL, ENABLE)

1.8

V

I(SINK1)

Sink current (ACPRES)

VOL = 0.4

1.5

2

2.5

mA

I(SINK2)

Sink current (ALARM)

VOL = 0.4

1.5

2

2.5

mA

PWM Oscillator

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

fOSC(PWM) Oscillator frequency

0

°C ≤ TJ ≤ 85°C

260

300

340

kHz

fOSC(PWM) Oscillator frequency

−40

°C ≤ TJ ≤ 125°C

240

300

350

kHz

Maximum duty cycle

100%

Input voltage for maximum dc (COMP)

3.8

V

Minimum duty cycle

0%

Input voltage for minimum dc (COMP)

0.8

V(RAMP)

Oscillator ramp voltage (peak-to-peak)

1.85

2.15

2.30

V

VIK(COMP)

Internal input clamp voltage

(tracks COMP voltage for maximum dc)

3.8

4.5

V

IS(COMP)

Internal source current (COMP)

Error amplifier = OFF, V(COMP) = 1 V

70

110

140

µA

Leakage Current

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

IL(ACDET)

Leakage current, ACDET

V(ACDET) = 5 V

0.2

µA

IL(SRSET)

Leakage current, SRSET

V(SRSET) = 2.5 V

0.2

µA

IL(ACSET)

Leakage current, ACSET

V(ACSET) = 2.5 V

0.2

µA

IL(BATDEP)

Leakage current, BATDEP

V(BATDEP) = 5 V

0.2

µA

IL(VS)

Leakage current, VS

V(VS) = 5 V

0.2

µA

IL(ALARM)

Leakage current, ALARM

V(ALARM) = 5 V

0.2

µA

IL(ACSEL)

Leakage current, ACSEL

V(ACSEL) = 5 V

0.2

µA

IL(ENABLE)

Leakage current, ENABLE

V(ENABLE) = 5 V

0.2

µA

IL(ACPRES)

Leakage current, ACPRES

V(ACPRES) = 5 V

0.2

µA

IL(BATP)

Leakage current, BATP

V(BATP) = 5 V

0.2

µA

IL(BATSET)

Leakage current, BATSET

V(BATSET) = 2.5 V

0.2

µA