AL5802LP LED DRIVER, 30V, LINEAR, ADJUSTABLE, CURRENT SINK Description Pin Assignments The AL5802LP combines a high-gain NPN transistor with a pre- biased NPN transistor to make a simple, small footprint LED driver. The LED current is set by an external resistor connected from R EXT pin (2) to GND pin (3), and the internal high-gain transistor develops approximately 0.6V across the external resistor. The AL5802LPs 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 Internal Schematic the BIAS pin (6) with a low impedance voltage source, or driving the (Top View) (Bottom View) EN pin (4) with an external open-collector NPN transistor or open-drain N-Channel MOSFET. Package: U-DFN1616-6 (Type F) The collector of Q2 is connected to pin 1 and pad 7 which is The AL5802LP is available in a U-DFN1616-6 (Type F) package and on the underside of the package is ideal for driving 10mA to 120mA LED currents. Pad 8 is electrically tied to the collector of Q1 and to the base of Q2, i.e. it is common with terminal 4 Mechanical Data Features Case: U-DFN1616-6 (Type F) Reference Voltage V = 0.65V REXT Case Material: Molded Plastic, Green Molding Compound -40 to +125C Operating Temperature Range UL Flammability Classification Rating 94-V-0. 0.8V to 30V Open-Collector Output Moisture Sensitivity: Level 1 per J-STD-020 Negative Temperature Coefficient Automatically Reduces the Terminals: Finish NiPdAu over Copper Leadframe LED Current at High Temperatures e4 Solderable per MIL-STD-202, Method 208 Low Thermal Impedance, Small Footprint DFN1616-6 Package Weight: 0.005 grams (Approximate) with Exposed Pads Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Applications Linear LED Driver LED Signs Offline LED Luminaries Ordering Information (Note 4) Tape and Reel Device Qualification Packaging Quantity Part Number Suffix AL5802LP Commercial U-DFN1616-6 (Type F) 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 AL5802LP Marking Information 102 = Product Type Marking Code 102 Typical Application Circuit Pin Descriptions Pin Number Name Function 1 OUT Open-Collector LED Driver Output Current Sense Pin 2 REXT LED current sensing resistor should be connected from here to GND 3 GND Ground Reference Point for Setting LED Current Enable Pin for PWM Dimming 4 EN Provides access to the base of Q2 and the collector of Q1 5 N/C No Connection 6 BIAS Biases the Open Collector Output Transistor Functional Block Diagram Figure 1 Block Diagram 2 of 10 AL5802LP www.diodes.com March 2016 Document number: DS37549 Rev. 4 - 2 Diodes Incorporated ADVANCE INFORMATION NEW PRODUCT