XR46203 Datasheet | MaxLinear

Description The XR46203 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 XR46203 works as a constant current sink with linear type over voltage 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 bulb and linear type fluorescent lamps. Typical Application - ILED + RA1 RIN1 RBL1 RBL2 RA2 RIN2 RB CLR VIN GATE NC SOURCE VL NC GND CS U1 XR46203 LEDS1 Q1 (NMOS) XR46000 LEDS2 R1 Figure 1. Typical 2-Step Application FEATURES - - Device Two...