SC1766 datasheet(2/11 Pages) SEMTECH

2 / 11 page

652 MITCHELL ROAD NEWBURY PARK CA 91320

BATTERY

CHARGE CONTROLLER

SC1766

Janaury 30, 1998

PIN CONFIGURATIONS

ELECTRICAL CHARACTERISTICS

Unless otherwise specified, T

A = 25ºC, VIN = 12.5V

PIN DESCRIPTIONS

Supply voltage input.

GND

Ground.

Input, to sense battery voltage.

MODE Input, to set IC operation mode.

TIMER Input, for safety timer control.

REF

Voltage reference output.

LED

Output, for LED indicator.

OUT

Output, for LED indicator.

FLASH Output, for LED indicator (14-pin only.)

VNTC Input, for temperature protection (14 pin only).

Parameter

Symbol

Min

Typ

Max

Units

Supply Voltage

918

Supply Current

1.5

∆V detection level w.r.t. peak value

-0.25

Voltage protection limits

battery low

battery high

0.50

3.30

0.65

3.70

0.80

3.90

Input impedance of TIMER pin

TIMER

100

Ω

Input impedance of MODE pin

MODE

100

Ω

Output resistance of LED pin

fast charge

trickle charge

LED

Ω

Output resistance of V

OUT pin

fast charge

trickle charge

RVOUT

Ω

FLASH pin output

resistance at fast charge

frequency

duty cycle

FLASH

Ω

Reference voltage

source current

REF

1.5

5.85

Temperature fault voltage limits as

fraction of V

REF

under-temperature

over-temperature

αNTCL

0.60

0.15

0.70

0.20

0.80

0.25

REF

SC1766 Scheda tecnica(PDF) 2 Page - Semtech Corporation

SC1766 Scheda tecnica(HTML) 2 Page - Semtech Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11

Scheda tecnica Scarica

Link URL