ACT8941A datasheet(24/42 Pages) ACTIVE-SEMI

24 / 42 page

ACT8941A

Rev 0, 12-Mar-13

- 24 -

www.active-semi.com

ActivePMU

TM and ActivePathTM are trademarks of Active-Semi.

I2CTM is a trademark of NXP.

Innovative PowerTM

Active-Semi Proprietary―For Authorized Recipients and Customers

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

ACIN/CHGLEV = 01

VSYS Voltage vs. VSYS Current

6.0

5.0

4.0

3.0

2.0

1.0

VSYS Current (mA)

500

1000

1500

2000

2500

Battery Voltage (V)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

Battery Voltage (V)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

VSYS Voltage vs. CHGIN Voltage

CHGIN Voltage (V)

5.2

5.0

4.8

4.6

4.4

4.2

4.0

VSYS = 4.6V

ACIN/CHGLEV = 11

CH1: IVSYS, 1.00A/div

CH2: IBAT, 1.00A/div

CH3: VBAT, 1.00V/div

CH4: VVSYS, 1V/div

TIME: 200ms/div

DCCC and Battery Supplement Modes

CH3

CH4

CH1

CH2

VBAT = 3.5V

VVSYS = 4.6V

IVSYS = 0-1.8A

ICHARGE = 1000mA

VCHGIN = 5.1V-3A

TYPICAL PERFORMANCE CHARACTERISTICS CONT’D

Charger Current vs. Battery Voltage

100

Charger Current vs. Battery Voltage

500

450

400

350

300

250

200

150

100

VCHGIN = 5V

ACIN = 0

CHGLEV = 1

450mA USB

VCHGIN = 5V

ACIN = 0

CHGLEV = 0

90mA USB

Charger Current vs. Battery Voltage

1200

1000

800

600

400

200

Battery Voltage (V)

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

RISET = 2.4kΩ

VCHGIN = 5V

ACIN/CHGLEV = 11

VBAT Falling

VBAT Rising

VBAT Falling

VBAT Rising

VBAT Falling

VBAT Rising

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