MCP73871 datasheet(8/38 Pages) MICROCHIP

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MCP73871

DS22090B-page 8

AC CHARACTERISTICS

TEMPERATURE SPECIFICATIONS

Electrical Specifications: Unless otherwise indicated, all limits apply for V

IN = 4.6V to 6V.

Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]

Parameters

Sym

Min

Typ

Max

Units

Conditions

UVLO Start Delay

tSTART

——

VDD Low-to-High

Current Regulation

Transition Time Out of Precondition

tDELAY

——

VBAT < VPTH to VBAT > VPTH

Current Rise Time Out of Precondition

tRISE

——

IOUT Rising to 90% of IREG

Precondition Comparator Filter Time

tPRECON

0.4

1.3

3.2

Average VBAT Rise/Fall

Termination Comparator Filter Time

tTERM

0.4

1.3

3.2

Average IOUT Falling

Charge Comparator Filter Time

tCHARGE

0.4

1.3

3.2

Average VBAT Falling

Thermistor Comparator Filter Time

tTHERM

0.4

1.3

3.2

Average THERM Rise/Fall

Elapsed Timer

Elapsed Timer Period

tELAPSED

—

Hours

3.6

4.0

4.4

Hours

5.4

6.0

6.6

Hours

7.2

8.0

8.8

Hours

Status Indicators

Status Output Turn-off

tOFF

—

500

µs

ISINK = 1 mA to 0 mA

Status Output Turn-on

tON

—

500

µs

ISINK = 0 mA to 1 mA

Note 1:

Internal safety timer is tested base on internal oscillator frequency measurement.

Electrical Specifications: Unless otherwise indicated, all limits apply for V

IN = 4.6V to 6V.

Typical values are at +25°C, VDD = [VREG (typical) + 1.0V]

Parameters

Sym

Min

Typ

Max

Units

Conditions

Temperature Ranges

Specified Temperature Range

-40

—

+85

°C

Operating Temperature Range

-40

—

+125

°C

Storage Temperature Range

-65

—

+150

°C

Thermal Package Resistances

Thermal Resistance, 20LD-QFN, 4x4

—

°C/W

4-Layer JC51-7 Standard Board,

Natural Convection

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