AL5815W5-7

AL5815/AL5816 60V LINEAR LED CONTROLLER Description Pin Assignments AL5815 （Top View） NEW PRODUCT The AL5815 and AL5816 are 5-terminal adjustable constant current linear LED controllers offering excellent temperature stability and current capability. They can work with a wide input voltage range from 4.5V to 60V. With its low 200mV current sense FB voltage, it controls the regulation of LED current with minimum power dissipation compared with traditional linear LED drivers. This makes it ideal for medium to high current LEDs. ENB 1 5 VCC GND 2 The device has an internal output drive up to 15mA, which enables it to drive external Bipolar transistors or MOSFETs. It also provides the capability to drive longer LED chains with low drop out voltage and multiple LED channels. FB 3 4 OUT SOT25 AL5815 and AL5816 have their LED current adjusted and controlled by a sense resistor connected across FB pin and GND. The voltage across this resistor is controlled to a precise 0.2V thus controlling the current. AL5816（Top View） PWM 1 The AL5815 has an enable (ENB) pin. Bringing ENB low to enable the device and turn on external transistor. Bringing ENB high puts the device into a low quiescent current shutdown state. The AL5815 has a turn on delay built in which makes sure there is not a high current surge at startup. The average LED current can be adjusted by applying a low frequency PWM signal less than 200Hz to the ENB pin. GND 2 FB 3 If PWM dimming higher than 200Hz is required the AL5816 has replaced the enable pin with a PWM pin. This device can run at frequencies greater than 200Hz. The AL5815 and AL5816 are available in SOT25 package. Features  Wide Input Voltage Range from 4.5V to 60V          Low Reference Voltage (VFB = 0.2V) 4% Reference Voltage Tolerance Up to 15mA Driver Capability for Bipolar Transistor Low Standby Current for AL5815 PWM Dimming Frequency Higher than 200Hz for AL5816 Input Under Voltage Lock-out Over Temperature Shutdown Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) Notes: 5 VCC 4 OUT SOT25 Applications    Commercial and Industrial Lighting Exterior Lighting Appliance Lights 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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