AL5801W6Q-7

AL5801 100V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER Description Pin Assignments The AL5801 combines a 100V N-channel MOSFET with a pre- (Top View) biased NPN transistor to make a simple, small footprint LED driver. The LED current is set by an external resistor connected from REXT pin (4) to GND pin (6). The internal pre-biased transistor develops approximately 0.56V across the external resistor. The AL5801 open-drain output can operate from 1.1V to 100V enabling it to operate 5V to 100V power supplies without additional components. PWM dimming of the LED current can be achieved by driving the BIAS pin (1) with an external, open-collector NPN transistor or open-drain N-channel MOSFET. The AL5801 is available in a SOT26 package and is ideal for driving LED currents up to 350mA. SOT26 Features • Feedback Pin Reference Voltage VRSET = 0.56V at +25°C Applications • -40°C to +125°C Temperature Range • Linear LED Drivers • 1.1V to 100V Open-Drain Output • LED Signs • Negative temperature VRSET co-efficient automatically reduces • Offline LED Luminaries the LED current at high temperatures • Low thermal impedance SOT26 package with copper lead frame • Lead-Free Finish; RoHS Compliant (Notes 1 & 2) • Halogen and Antimony Free. “Green” Device (Note 3) • Qualified to AEC-Q101 Standards for High Reliability Notes: 1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. All applicable RoHS exemptions applied. 2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.  3. Halogen- and Antimony-free "Green” products are defined as those which contain