Description

The AL8821 is a boost converter that delivers an accurate constantcurrent for MR16 and similar LED Lamps. With proprietary control scheme, the LED driver is compatible with many commonly used electronic transformers and provides designs with High Power Factor (PF) and low Total Harmonic Distortion (THD) for these applications. The operation frequency is up to 1MHz that allows the use of small size inductor. With the package of SO-8EP, the AL8821 has small thermal resistance and can be used for wide range of output power. The driver can be used for dimmable MR16 application and can be compatible with leading-edge dimmer and trailing-edge dimmer.

Features

Wide Input Voltage Range: 5V to 36V

Internal 40V NDMOS Switches

Continuous Conduction Mode (CCM) Operation

Up to 1MHz Switching Frequency

High PF > 0.9 and Low THD < 30% and low Ripple < 20%

Compatible With Leading-edge Dimmer And Trailing-edge Dimmer

Internal Protections

  Under Voltage Lock Out (UVLO)

  Output Open

  Over Temperature Protection (OTP)

Pb-free SO-8EP

Applications

Non-dimmable MR16 Lamps

Dimmable MR16 Lamps

General Illumination Lamps