AL5812FF-7 Diodes Incorporated

AL5812 60V, 150mA ADJUSTABLE LINEAR LED DRIVER Description Pin Assignments (Top View) The AL5812 is an adjustable Linear LED driver offering excellent temperature stability and output handling capability. The AL5812 V 1 8 LED CC simplifies the design of linear and isolated or non-isolated LED NC NC 2 7 drivers by setting the LED current with standard value resistors. NC 3 6 NC The AL5812 has an open drain output that can swing from 1V up to 60V enabling it drive long LED chains. Its low 0.5V R pin is outside R 4 5 GND SET SET of the LED current path and so accuracy is maintained while MSOP-8EP minimizing the required overheads to regulate the LED current. This reduces its power dissipation when compared to traditional linear (Top View) LED drivers. This makes it ideal for driving LEDs up to 150mA (commonly referred to as W LEDs). V CC LED 1 6 Longer LED chains can be driven by tapping V from the chain, CC where the chain voltage may exceed 60V. NC NC 2 5 Exposed The AL5812 is available in the exposed pad MSOP-8EP and Pad R SET 3 4 GND U-DFN3030-6 packages. U-DFN3030-6 Features Applications Low Reference Voltage (V = 0.5V) Isolated Offline LED Converters RSET -40C to +125C Temperature Range Linear LED Driver 3% LED Current Tolerance LED Signs Low Temperature Drift Instrumentation Illumination 1V to 60V Open-Drain Output High Power Supply Rejection MSOP-8EP and U-DFN3030-6 Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. Green Device (Note 3) Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant. 2. See AL5812 Pin Descriptions Pin Pin Pin Number Number Function Name (MSOP8-EP) (U-DFN3030-6) Power Supply Input. V 1 1 CC Connect a 0.1 F ceramic capacitor between V and GND as close as possible to the CC device. LED Current Setting Pin. Connect a resistor from this pin to GND: R 4 3 SET I = 750/R LED SET May also be used to provide PWM dimming functionality. GND 5 4 Ground Reference Point of Device. LED 8 6 LED Current Sink Output. NC 2, 3, 6, 7 2, 5 No Connection. Exposed Pad (bottom). Used to improve thermal impedance of package. EP EP EP It must be connected to GND directly underneath the package but not used as sole GND potential terminal. Functional Block Diagram 2 of 13 March 2014 AL5812 Diodes Incorporated www.diodes.com Document number: DS35616 Rev. 4 - 2