AL5811FF-7 Diodes Incorporated

AL5811 60V, LINEAR 75mA ADJUSTABLE CURRENT LED DRIVER Description Pin Assignments The AL5811 is a Linear LED driver with an adjustable LED current up (Top View) to 75mA offering excellent temperature stability and output handling capability. The AL5811 simplifies the design of linear and isolated or V 1 8 LED CC non-isolated LED drivers by setting the LED current with standard 2 7 NC NC value resistors. The AL5811 has an open drain output that can swing from 1V up to 3 6 NC NC 60V enabling it drive long LED chains. Its low 0.5V RSET pin is 4 5 R GND SET outside of the LED current path and so accuracy is maintained while minimizing the required overhead to regulate the LED current. This MSOP-8EP reduces its power dissipation when compared to traditional linear LED drivers. This makes it ideal for driving LEDs up to 75mA. (Top View) Longer LED chains can be driven by tapping VCC from the chain, where the chain voltage may exceed 60V. V LED 1 6 CC The AL5811 is available in the exposed pad MSOP-8EP and U-DFN3030-6 packages. NC 2 5 NC Exposed Pad R GND 3 4 SET U-DFN3030-6 Applications Features Isolated Offline LED Converters Low Reference Voltage (V = 0.5V) RSET Linear LED Driver -40C to +125C Temperature Range LED Signs 6% Typical LED Current Tolerance Instrumentation Illumination Low Temperature Drift 1.0V 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 AL5811 Pin Descriptions Pin Number Pin Name Function MSOP-8EP U-DFN3030-6 Supply Input. V 1 1 CC Connect a 0.1F ceramic capacitor between V and GND as close as possible to the device. CC LED Current Setting Pin. Connect a resistor from this pin to GND: 4 3 R 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 Connection. NC 2, 3, 6, 7 2, 5 Unused Exposed Pad (bottom). EP Exposed Pad Exposed Pad Used to improve thermal impedance of package. It must be connected to GND directly underneath the package. Functional Block Diagram V CC LED Current + Regulator - R SET GND Absolute Maximum Ratings (@T = +25C, unless otherwise specified.) A Symbol Parameters Ratings Unit V Supply Voltage Relative to GND Pin (Note 4) -0.3 to +66 V CC V LED Voltage Relative to GND Pin (Note 4) -0.3 to +66 V LED V R Voltage Relative to GND Pin -0.3 to +6 V RSET SET I LED Pin Current Sink Current Range 85 mA LED ESD HBM ESD Protection - Human Body Model 1 kV ESD CDM ESD Protection - Charged Device Model 1.2 kV T Operating Junction Temperature -40 to +150 C J Storage Temperature -55 to +150 C TST Notes: 4. V pin can be greater or smaller than V ; neither should go below GND. CC LED Caution: Stresses greater than the 'Absolute Maximum Ratings' specified above, may cause permanent damage to the device. These are stress ratings only; functional operation of the device at these or any other conditions exceeding those indicated in this specification is not implied. Device reliability may be affected by exposure to absolute maximum rating conditions for extended periods of time. Semiconductor devices are ESD sensitive and may be damaged by exposure to ESD events. Suitable ESD precautions should be taken when handling and transporting these devices 2 of 14 AL5811 November 2016 Diodes Incorporated www.diodes.com Document number: DS35255 Rev. 3 - 2