Jan 09 -08 RevT

SP7612/7614 Low Dropout Linear LED driver

© 2008 EXAR Corporation

Page 2

SP7612 SP7614

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation

sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect

reliability.

ELECTRICAL SPECIFICATIONS

full operating temperature range, unless otherwise specified.

CTRL Voltage to GND . ..................................................................................................................................... .-0.5V

Junction Temperature ...................................................................................................................................... +150°C

Storage Temperature.......................................................................................................................... -55°C to +150°C

PARAMETER

PART #

MIN

TYP

MAX

UNITS

LED Cathode Voltage

5.5

V

See graph for LED

Current vs. Cathode

Voltage

Ambient Temperature

-40

85

ºC

SP7612

Output Current

Multiplication Ratio in

Linear Region (Note1)

SP7614

140

200

260

SP7612

365

435

505

Output Current

Multiplication Ratio in

Saturation (Note1)

SP7614

730

870

1010

LED to LED Current

Matching

-3

0.8

3

%

♦

Current in OFF Mode

0.01

1

µA

Min. ENABLE ""ON

Voltage" (Note 2)

3

V

Max. ENABLE ""OFF

Voltage" (Note 2)

0.5

V

♦

performance characteristics on pages 4 through 7.

ENABLE "OFF" is V where

I < 1μA @ V > 0.3V.