ACT8810 datasheet(41/52 Pages) ACTIVE-SEMI

41 / 52 page

ActivePathTM CHARGER

ACT8810

Rev 4, 01-Oct-09

Active-Semi

Innovative PowerTM

- 41 -

www.active-semi.com

ActivePMUTM and ActivePathTM are trademarks of Active-Semi.

I2CTM is a trademark of Philips Electronics.

ELECTRICAL CHARACTERISTICS CONT’D

(VCHG_IN = 5V, TA = 25°C, unless otherwise specified.)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNIT

CHARGER

BAT Reverse Leakage Current

VCHG_IN = 0V, VBAT = 4.2V, IVSYS = 0mA

µA

BAT to VSYS On-Resistance

mΩ

ISET Pin Voltage

Fast Charge

1.02

Precondition

0.12

Battery Regulation Voltage

TA = -20°C to 70°C

4.179

4.2

4.221

TA = -40°C to 85°C

4.170

4.230

Charge Current

VBAT = 3.5V

ACIN = VSYS, CHGLEV = VSYS -10%

ISET1

+10%

ACIN = VSYS, CHGLEV = GA

-16%

50%ISET +16%

ACIN = GA, CHGLEV = VSYS

-10%

Smallest

(450mA or

ISET)

+10%

ACIN = GA, CHGLEV = GA

-10%

Smallest

(90mA or

ISET)

+10%

Precondition Charge Current

VBAT = 2.5V

ACIN = VSYS, CHGLEV = VSYS

12%ISET

ACIN = VSYS, CHGLEV = GA

12%ISET

ACIN = GA, CHGLEV = VSYS

12%ISET

ACIN = GA, CHGLEV = GA

Smallest

(90mA or

12%ISET)

Precondition Threshold Voltage

VBAT Voltage Rising

2.75

2.85

2.95

Precondition Threshold Hysteresis VBAT Voltage Falling

100

End-of-Charge Current Threshold VBAT = 4.2V

ACIN = VSYS, CHGLEV = VSYS -10%

10%ISET +10%

ACIN = VSYS, CHGLEV = GA

-10%

10%ISET +10%

ACIN = GA, CHGLEV = VSYS

-10%

5%ISET

+10%

ACIN = GA, CHGLEV = GA

-10%

5%ISET

+10%

Charge Restart Threshold

VSET - VBAT, VBAT Falling

150

170

190

BTR Scale Factor

0.24

s/Ω

Precondition Safety Timer

RBTR = 47kΩ, tPRCHG = 0.24 × RBTR(Ω)/180(min)

Fast Charge Safety Timer

RBTR = 47kΩ, tCHG = 0.24 × RBTR(Ω)/60(min)

Thermal Regulation Threshold

100

145

°C

THERMAL REGULATION

: ISET = 640 × (1V/RISET)

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