30V, ADJUSTABLE CURRENT SINK LINEAR LED DRIVER
The AL5802LP4 combines a high-gain NPN transistor with a
pre-biased NPN transistor to make a simple small footprint LED
The LED current is set by an external resistor connected from
REXT Pin (2) to GND Pin (1). The internal high-gain transistor
develops approximately 0.6V across the external resistor.
The AL5802LP4’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 (4) with a low impedance voltage source, or driving the
EN Pin (6) with an external open-collector NPN transistor or
open-drain N-Channel MOSFET.
The AL5802LP4 is available in a X2-DFN1310-6 package and is
ideal for driving up to 120mA current.
Reference Voltage VREXT = 0.65V
-40 to +125°C Temperature Range
0.8V to 30V Open-Collector Output
Negative Temperature Co-Efficient – Automatically Reduces
the LED Current at High Temperatures
Low Thermal Impedance, Small Footprint X2-DFN1310-6
Package with Exposed Pads
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: NiPdAu (Lead-Free) Plating.
Solderable per MIL-STD-202, Method 208 e4
Weight: 0.0013 grams
Linear LED Driver
Offline LED Luminaries
Ordering Information (Note 8)
Tape and Reel
Part Number Suffix
3,000/Tape & Reel
8. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
802 = Product Type Marking Code
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"
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.
Document number: DS37441 Rev. 4 - 2
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