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2022-09-24 21:37:18
AL5814Q Adjustable Linear LED Driver Controller
The AL5814Q adjustable linear LED driver controller has excellent temperature stability and output current capability. The device operates over a wide input voltage range of 4.5 V to 60 V and can drive up to 15 mA of output current to drive an external BJT or MOSFET. The AL5814Q supports analog dimming by adjusting the voltage on the VSET pin, and PWM dimming by applying a PWM control signal on the VFAULT pin. Thermal foldback is achieved using an external NTC resistor from VSET to GND. The AL5814Q provides open LED protection, under voltage lockout and over temperature protection. Packaged in an MSOP8-EP package, the device is automotive-qualified, AECQ101 Grade 1 compliant; PPAP capable; manufactured in an IATF16949: 2016 certified facility.
characteristic
Input voltage range from 4.5 V to 60 V
Wide input voltage range for 12 V/24 V automotive batteries
Enhanced/Multifunctional Dimming Mode
Robust and reliable output open circuit protection, input under voltage lockout protection and over temperature protection
Send PWM dimming signal through VFAULT pin, analog dimming through VSET pin
Configurable LED current settings for better LED control
External BJT/MOSFET drive up to 15 mA
Supports high current and high power linear LED applications
Reliable system performance
LED current foldback via BTC and resistor divider between REF and VSET pins
application
taillight
interior lights
Instrument lighting
position light
License plate lighting