SP7614 datasheet(2/14 Pages) EXAR

2 / 14 page

Jan 09 -08 RevT

SP7612/7614 Low Dropout Linear LED driver

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

Specifications are at TA=25°C, VIN = 3.3 to 5.5, ENABLE =VIN,

♦ denotes the specifications which apply over the

full operating temperature range, unless otherwise specified.

VLED1, VLED2, VLED3, VLED4 and ENABLE Voltage to GND............................................................................... -0.3V to 6V

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

Output Current (IOUT) (SP7612)……………....................................................................................................... 40mA

Output Current (IOUT) (SP7614)…..................................................................................................................... 80mA

Power Dissipation per Package - 6-pin SC-70 at TA =85°C.............................................................................. 190mW

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

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

ESD Level........................................................................................................................................................................................................ 4kV HBM

PARAMETER

PART #

MIN

TYP

MAX

UNITS

♦ CONDITIONS

LED Cathode Voltage

(VLED)

5.5

See graph for LED

Current vs. Cathode

Voltage

Ambient Temperature

-40

ºC

SP7612

ISET = 100µA

VLED = 300mV

Output Current

Multiplication Ratio in

Linear Region (Note1)

SP7614

140

200

260

ISET = 100µA

VLED = 150mV

SP7612

365

435

505

Output Current

Multiplication Ratio in

Saturation (Note1)

SP7614

730

870

1010

ISET = 25µA

VLED = 0.5V

LED to LED Current

Matching

-3

0.8

♦

ISET = 100µA

VLED = 300mV

Current in OFF Mode

0.01

µA

♦ VENABLE = 0.0V

Min. ENABLE ""ON

Voltage" (Note 2)

♦ ISET = 150µA

Max. ENABLE ""OFF

Voltage" (Note 2)

0.5

♦

Note 1: Output current Multiplication Ratio (ILED/ISET) is not linear. For actual ratio and ILED please refer to typical

performance characteristics on pages 4 through 7.

Note 2: ENABLE "ON" is VON/OFF where ILED1 > 20mA @ VLED1 = 0.3V.

ENABLE "OFF" is V where

I < 1μA @ V > 0.3V.

SP7614 датащи(PDF) 2 Page - Exar Corporation

SP7614 датащи(HTML) 2 Page - Exar Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14

датащи скачать

ссылки URL