XR46073 Datasheet | MaxLinear

Description The XR46073 is a two-step LED current controller with line regulation pensation for operating over a wide Alternative Current (AC) voltage source range. It can drive an external N-channel power MOSFET to regulate the current flowing through a High Voltage (HV) LED string. The XR46073 works as a constant current sink with linear type Overvoltage Protection (OVP), linear type Over Temperature Protection (OTP) and line regulation pensation. It is suitable for applications with a rectified AC voltage source. The PCB design can be very pact to meet various shape requirements. It is especially suitable for replacing incandescent light bulbs. Typical Application ILED + - BD LED1 RA RIN RB CLR VIN GATE XR46073 VL SOURCE GND CS LED2 Q1 (NMOS) XR46000 LED3 R1 Figure 1. Typical Application REV1C FEATURES Device - - Two-current step control from a single device - - Excellent...