APM8601

DUAL CHANNEL SINGLE CELL LINEAR LITHIUM BATTERY

CHARGER WITH 28V OVP and PROGRAMMABLE CHARGE

TIMER

APM8601

Document number: DS35138 Rev. 1 - 2

5 of 14

www.diodes.com

December 2010

© Diodes Incorporated

Electrical Characteristics

unless otherwise noted.

Note:

5. Guaranteed by testing of undervoltage- and overvoltage-threshold. To completely charge a battery cell, the input voltage must be greater than 4.32V.

Symbol

Parameter

Test Conditions

Min

Typ.

Max

Unit

Input Voltage Range

0

28

V

Input Operating Range (Note 5)

4.15

7.00

V

UVLO

Input Undervoltage Lock Out

(Note 5)

Input rising, 500mV

3.85

4.0

4.15

V

OVLO

Input Overvoltage Lock Out

Input rising, 200mV

hysteresis (typ.)

7.2

7.5

7.8

V

Input Supply Current

750

1200

µA

Shutdown Current

EN

275

435

µA

Input to BAT On-Resistance

0.5

0.8

Ω

Input to BAT dropout Voltage

Input falling, 200mV

hysteresis (typ.)

5

55

150

mV

Battery Voltage Regulation

4.179

4.2

4.221

V

Battery Fast-Charge Restart

Threshold

From BAT regulation

voltage

-230

-175

-110

mV

DC Charge Current

950

1000

1140

mA

727

750

870

280

300

353

60

75

95

USB Charge Current

450

475

500

mA

75

90

105

60

75

95

SS

Soft-Start Time

Ramp time to fast-charge

1.2

ms

BAT Prequel Threshold

hysteresis (typ.)

2.9

3.0

3.1

V

BAT Leakage Current

4.2V

0.001

5

µA

Resistance Range for SETI

Guaranteed by charging

current

1.5

5.0

k

Ω