MCP73837/8

DS22071A-page 4

© 2007 Microchip Technology Inc.

1.0

ELECTRICAL

CHARACTERISTICS

Absolute Maximum Ratings†

Storage temperature .....................................-65°C to +150°C

ESD protection on all pins

Human Body Model (1.5 kW in Series with 100 pF)

......≥ 4kV

Machine Model (200 pF, No Series Resistance) .............300V

† Notice: Stresses above those listed under “Maximum

Ratings” may cause permanent damage to the device. This is

a stress rating only and functional operation of the device at

those or any other conditions above those indicated in the

operational listings of this specification is not implied.

Exposure to maximum rating conditions for extended periods

may affect device reliability.

DC CHARACTERISTICS

Parameters

Sym

Min

Typ

Max

Units

Conditions

Supply Input

Supply Voltage

+0.3V

—6

V

Note 1

Supply Current

—

1900

3000

µA

Charging

110

300

µA

Charge Complete, No Battery

—

75

100

µA

Standby (PROG Floating)

—

0.6

5

µA

UVLO Start Threshold

3.35

3.45

3.55

V

UVLO Stop Threshold

3.25

3.35

3.45

V

UVLO Hysteresis

—

75

—

mV

(USB-Port)

UVLO Start Threshold

4.1

4.15

4.3

V

(AC-Adapter)

UVLO Stop Threshold

4.0

4.1

4.2

V

(AC-Adapter)

UVLO Hysteresis

—

55

—

mV

(AC-Adapter)

Voltage Regulation (Constant Voltage Mode)

Regulated Charge Voltage

4.179

4.20

4.221

V

4.328

4.35

4.372

V

4.378

4.40

4.422

V

4.477

4.50

4.523

V

Regulated Charge Voltage Tolerance

-0.5

—

+0.5

%

Line Regulation

—

0.075

0.2

%/V

Load Regulation

—

0.150

0.3

%

Supply Ripple Attenuation

PSRR

—

60

—

dB

—52

—

dB

—23

—

dB

Current Regulation (Fast Charge Constant-Current Mode)

AC-Adapter Fast Charge Current

95

105

115

mA

PROG1 = 10 k

Ω

900

1000

1100

mA

PROG1 = 1 k

Ω, Note 2

Note 1:

when input power source is from USB-Port.

2:

The value is guaranteed by design and not production tested.

3:

4:

The maximum charge impedance has to be less than shutdown impedance for normal operation.