AL5814MP-13

AL5814 60V LINEAR DIMMABLE LED CONTROLLER Description Pin Assignments NEW PRODUCT The AL5814 is an 8-terminal adjustable linear LED driver-controller offering excellent temperature stability and output current capability. It works with a wide input voltage range from 4.5V to 60V. With an external LED driving power device, its internal power dissipation is minimized compared with traditional linear LED drivers. This makes it ideal for medium to high current LED circuits. (Top View) The AL5814 has internal output drive capability 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. The AL5814 uses application of power to enable the LED strings. If a separate enable pin is needed the AL5817 should be used. The AL5814 is available in the thermally enhanced MSOP-8EP package. 1 REF 2 8 VFAULT 7 OUT EP The VSET pin is used to directly set output current feedback level. Using a resistor divider between REF pin and VSET pin, the output current can be set. Additionally, the use of an NTC resistor allows the creation of an accurate and configurable thermal fold-back behavior. The AL5814 provides an LED-open detection feature through its VFAULT pin. If VFAULT is brought lower than 2.5V (by any one of the multiple LED channels going open) the AL5814’s output will go low turning off the external transistors. The device will recover when the open condition is removed. This ability of VFAULT to turn off the external transistors also allows PWM dimming of the LED current by adding PWM control signal on VFAULT pin. VCC VSET 3 6 SFAULT GND 4 5 FB MSOP-8EP Applications     Automotive Rear Combination Light LED Signs Instrumentation Illumination Refrigerator Lights Features             Wide Input Voltage Range from 4.5V to 60V Configurable LED Current Setting 4% Reference Voltage Tolerance Low Temperature Drift 15mA Output Drive Capability for MOSFET or Bipolar Transistor LED Open Protection Detected by VFAULT Pin LED Thermal Fold-back Configured by VSET Over Temperature Protection (OTP) Input Under Voltage Lock-Out PWM Dimming Realized Through VFAULT pin 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) & 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