ACT5880 datasheet(50/87 Pages) ACTIVE-SEMI

50 / 87 page

ACT5880

Rev 2, 03-Sep-13

- 50 -

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SINGLE-CELL LI+ CHARGER ELECTRICAL CHARACTERISTICS

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

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

CHARGE INPUT

Input Voltage Range

Nominal condition VCHGIN

Valid for Charging Input Voltage

Range

VCHGIN

4.2

6.0

CHGIN OVP Threshold

VCHGIN rising, OVPSET[1:0] = 00

6.3

CHGIN OVP Threshold Adjustment

Step

LSB weight for threshold adjustment, OVP-

SET[1:0] from 00 to 11 stepping up.

200

CHGIN OVP Threshold Hysteresis

VCHGIN falling

200

CHGIN UVLO Threshold

VCHGIN rising

3.8

4.0

4.2

CHGIN UVLO Hysteresis

VCHGIN falling

500

Logic Low Input Level

For ACIN and CHGLEV.

0.4

Logic High Input Level

1.4

CHGIN Supply Current

VCHGIN < VUVLO

100

µA

Suspended, SUSCHG[ ]=1.

200

300

End of charge sleep, CHG_DAT reads 1.

800

1200

CHARGE REGULATION

Battery Regulation Voltage

For top-off, float-

ing or LDO mode

operation; No load

at VBAT.

VSET[3:0]=0101

4.179

4.2

4.221

Battery Regulation Voltage Adjust-

ment Resolution

Weight of the LSB,

VSET[3:0]=0000 to 1111

19.5

20.5

Line Regulation

VCHGIN =4.5V to 5.5V, IBAT=10mA

0.1

Load Regulation

IBAT=100mA to 1000mA

0.001

Fast Charge Current

CHGLEV=0 and ACIN=0, or ISET[3:0]=0000

105

CHGLEV=1 and ACIN=0, or ISET[3:0]=0100

0.4

0.45

0.5

ACIN=1, ISET[3:0]=1111

0.9

1.1

Fast Charge Current Adjustment

Resolution

Change per adjacent code stepping for ISET

[3:0] =0001 to 1111, from 0.3A to 1A.

ISET[3:0]=0001 to 1111

ISET[3:0]=0000

Precondition Threshold

VVBAT rising.

2.75

2.85

Precondition Threshold Hysteresis

VVBAT falling.

150

End of Charge Residual Ratio

Ratio to the fast charge current

Precondition Charge Current, ratio

to fast charge current.

Charge Restart Drop

Drop of the battery regulation voltage, falling.

180

220

264

Thermal Regulation Action

RangeNOTE

Thermal regulation starts to current cut tem-

perature range, at the sensor junction.

140

˚C

ACT5880 Datasheet(PDF) 50 Page - Active-Semi, Inc

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