bq2057, bq2057C

bq2057T, bq2057W

SLUS025F − MAY 2001 − REVISED JULY 2002

5

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−0.3 to +18 V

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Input voltage, SNS, BAT, TS, COMP (all with respect to GND)

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20 mA

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10 mA

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40 mA

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300mW

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−20

°C to 70°C

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−40

°C to 125°C

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Lead temperature (soldering, 10 s)

300

°C

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† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

DISSIPATION RATING TABLE

PACKAGE

DERATING FACTOR

ABOVE TA = 25°C

TA ≤ 25°C

POWER RATING

TA = 70°C

POWER RATING

DGK

3.4 mW/

°C

424 mW

271 mW

recommended operating conditions

MIN

MAX

UNIT

Supply voltage, VCC

4.5

15

V

Operating free-air temperature range, TA

−20

70

°C

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

I(VCC)

VCC Current

VCC > VCC(min), Excluding external loads

2

4

mA

I(VCCS)

VCC Sleep current

For bq2057 and bq2957C,

V(BAT) ≥ V(min), V(BAT) – VCC ≥ 0.8 V

3

6

A

I(VCCS)

VCC Sleep current

For bq2057T and bq2957W,

V(BAT) ≥ V(min), V(BAT) – VCC ≥ 0.8 V

10

µA

IIB(BAT)

Input bias current on BAT pin

V(BAT) = V(REG)

1

µA

IIB(SNS)

Input bias current on SNS pin

V(SNS)= 5 V

5

µA

IIB(TS)

Input bias current on TS pin

V(TS) = 5 V

5

µA

IIB(COMP) Input bias current on COMP pin

V(COMP) = 5 V

5

µA

BATTERY VOLTAGE REGULATION

bq2057, See Notes 1, 2, 3

4.059

4.10

4.141

VO(REG)

Output voltage

bq2057C, See Notes 1, 2, 3

4.158

4.20

4.242

V

VO(REG)

Output voltage

bq2057T, See Notes 1, 2, 3

8.119

8.20

8.282

V

bq2057W, See Notes 1, 2, 3

8.317

8.40

8.484

NOTES:

1. For high-side current sensing configuration

2. For low-side current sensing configuration, the tolerance is

±1% for TA = 25°C and ±1.2% for −20°C ≥ TA ≥ 70°C

3. V(BAT)+0.3 V ≤ VCC ≤ VCC(max)