Datasheet > AL5802

AL5802

更新时间： 2022-05-13 23:02:54

品牌	Logo	应用领域
美台 - DIODES		驱动器
页数	文件大小	规格书
11页	1035K
描述
30V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER

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AL5802 数据手册

AL5802

30V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER

Description

Pin Assignments

The AL5802 combines a high gain NPN transistor with a pre-

biased NPN transistor to make a simple small footprint LED

driver.

(Top View)

The LED current is set by an external resistor connected to

from REXT pin (6) to GND pin (4), the internal high gain

transistor develops approximately 0.6V across the external

resistor.

The AL5802 open-collector output can operate from 0.8V to

30V enabling it to operate from 5V to 24V power supplies

without additional components.

PWM dimming of the LED current can be achieved by either

driving the BIAS pin (2) with a low impedance voltage

source, or driving the EN pin (3) with an external open-

collector NPN transistor or open-drain N-channel MOSFET.

SOT26

The AL5802 is available in a SOT26 package and is ideal for

driving 20mA to 120mA LED currents.

Features

Applications

•

Reference voltage V_RSET= 0.65V

•

Linear LED driver

-40 to 125ºC temperature range

LED signs

0.8V to 30V open-collector output

Offline LED luminaries

Negative temperature co-efficient – automatically reduce the LED

current at high temperatures

•

Low thermal impedance SOT26 with copper leadframe

SOT26: Available in “Green” Molding Compound (No Br, Sb)

Qualified to AEC-Q101 Standards for High Reliability

Typical Application Circuit

1 of 11

www.diodes.com

November 2011

AL5802

Document number: DS35516 Rev.4 - 2

12 3 4 5 6 7...11

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