XR46050中文资料Two-Step LED Current Controller数据手册MaxLinear规格书

描述 Description

The XR46050 is a two-step LED current controller for bulb applications powered directly by an alternative current (AC) voltage source. It can drive an external N-channel power MOSFET to regulate the current flowing through a high voltage (HV) LED string.
The XR46050 works as a constant current regulator to control two-step current levels for AC step drivers with a simple structure. It also provides linear-type over temperature protection (OTP).
The PCB design can be very compact to meet various shape requirements. It is especially suitable for replacing “A” series LED light bulbs and candelabra LED bulbs.

特性 Features

·Device
·6V to 78V chip supply voltage range
·Over temperature protection
·Single board LED lighting solution available
·DFN 2 x 2-6L packages
·System
·All solid state components
·No electrolytic capacitor required
·Fewer components and simple solution for LED lighting
·Scalable architecture allows optimization of
·performance vs. cost
·Driver-on-board and chip-on-board design solution available which minimizes process flow and assembly cost
·High PF and Low THD performance
·Flexible PCB layout options