XR46050
Two-Step LED Current Controller
Description
The XR46050 is a two-step LED current controller for bulb application powered by an alternative current (AC) voltage source directly. 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 driver with simplest 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.
Typical Application
–
ILED
+
VAC
BD
FEATURES ■■ Device
6V to 76V chip supply voltage range Over temperature protection Single board LED lighting solution available 2mm x 2mm TDFN-6 package ■■ System All solid state components No electrolytic capacitor required Fewer component counts and simple solution for LED lighting Sca...
XR46050 PDF File
