5

© 2007 Semtech Corp.

www.semtech.com

SC804

PRELIMINARY

POWER MANAGEMENT

Parameter

Symbol

Conditions

Min

Typ

Max

Units

External RTIM

Regulation Voltage

V

RTIM

R

1.4

1.5

1.6

V

Timer Disable Threshold

VT

TIMER

V

disables internal timer

0.65

0.85

V

Internal Timer Select

VT

INTTS

VCC-V

selects internal timer

1.1

V

Pre-Charge Fault Time-Out

T

PreQF

R

RTIM pulled to VCC

-20%

-35%

53

45

+20%

+35%

min

Complete Charge

Time-Out

T

QCOMP

R

RTIM pulled to VCC

-20%

-35%

3.5

3.0

+20%

+35%

hr

CHRGB On

V

CHRGB

Load = 5mA

0.5

1

V

CHRGB Off

I

CHRGB

Leakage Current, V = 5V

1

μA

CPB On

V

CPB

Load = 5mA

0.5

1

V

CPB Off

I

CPB

Leakage Current, V = 5V

1

μA

OVPB On

V

OVPB

Load = 5mA

0.5

1

V

OVPB Off

I

OVPB

Leakage Current, V = 5V

1

μA

FLTB On

V

FLTB

Load = 5mA

0.5

1

V

FLTB Off

I

FLTB

Leakage Current, V = 5V

1

μA

Notes:

2) The absolute voltage on CTO must not exceed 6.0V to ensure normal operation.

3) The threshold error is tested at V

Electrical Characteristics (Cont.)