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XR46203

MaxLinear
Part Number XR46203
Manufacturer MaxLinear
Description Two-Step LED Current Controller
Published Sep 1, 2018
Detailed Description XR46203 Two-Step LED Current Controller with Line Regulation Compensation Description The XR46203 is a two-step LED cur...
Datasheet PDF File XR46203 PDF File

XR46203
XR46203


Overview
XR46203 Two-Step LED Current Controller with Line Regulation Compensation Description The XR46203 is a two-step LED current controller with line regulation compensation 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 compensation.
It is suitable for applications with a rectified AC voltage source.
The PCB design can be very compact to meet various shape requirements.
It is especially suitable for replacing incandescent light bulb and linear type fluorescent lamps.
Typical Application – ILED + VAC BD 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 cur...


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