AL5802LPL Datasheet, PDF (1/11 Pages) Diodes Incorporated – LED DRIVER, 30V, LINEAR, ADJUSTABLE, CURRENT SINK

AL5802LPL
LED DRIVER, 30V, LINEAR, ADJUSTABLE, CURRENT SINK
Description
The AL5802LPL combines a high-gain NPN transistor with a pre-
biased NPN transistor to make a simple, small footprint LED driver.
Pin Assignments
The LED current is set by an external resistor connected from the
REXT Pin (4) to the GND Pin (6), and the internal high gain transistor
develops approximately 0.6V across the external resistor.
The AL5802LPL’s open-collector output can operate from 0.8V to 30V
making it suitable for industry standard 5V to 24V power supplies
without additional components.
PWM dimming of the LED current can be achieved by either driving
the BIAS Pin (1) with a low impedance voltage source, or driving the
EN Pin (5) with an external open-collector NPN transistor or
open-drain N-Channel MOSFET.
The AL5802LPL is available in a U-DFN3030-6 (Type B) package and
is ideal for driving 10mA to 120mA LED currents.
1
2
3
7
Internal Schematic
(Top View)
6
5
4
(Bottom View)
Package: U-DFN3030-6 (Type B)
 The Collector of Q2 is Connected to Pin 2 and Pad 7 which is on
the Underside of the Package
 Pin 3 is Not Connected to Anything
Features
 Reference Voltage VREXT = 0.65V
 -40 to +125°C Operating Temperature Range
 0.8V to 30V Open-Collector Output
 Negative Temperature Coefficient – Automatically Reduces the
LED Current at High Temperatures
 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
 Halogen and Antimony Free. “Green” Device (Note 3)
Mechanical Data
 Case: U-DFN3030-6 (Type B)
 Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94-V-0.
 Moisture Sensitivity: Level 1 per J-STD-020
 Terminals: Finish – NiPdAu over Copper Leadframe.
Solderable per MIL-STD-202, Method 208 e4
 Weight: 0.0156 grams
Ordering Information (Note 4)
Device
AL5802LPL
Qualification
Commercial
Packaging
U-DFN3030-6 (Type B)
Tape and Reel
Quantity
Part Number Suffix
3,000/Tape & Reel
-7
Notes:
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html 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 <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
AL5802LPL
Document number: DS38590 Rev. 3 - 2
1 of 11
www.diodes.com
April 2016
© Diodes Incorporated