LM3402HVMM Datasheet

PMIC - LED Drivers


The LM3402, LM3402HVMM are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications,they contain a high-side N-channel MOSFET switch with a current limit of 735 mA (typical) for step-down (Buck) regulators.Hysteretic control with controlled on-time coupled with an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM),broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set. LM3402HVMM Features • Integrated 0.5A N-channel MOSFET• VIN Range from 6V to 42V (LM3402)• VIN Range from 6V to 75V (LM3402HV)• 500 mA Output Current Over Temperature• Cycle-by-Cycle Current Limit• No Control Loop Compensation Required• Separate PWM Dimming and Low Power Shutdown• Supports all-ceramic output capacitors and capacitor-less outputs• Thermal shutdown protection• MSOP-8 Package LM3402HVMM Applications • LED Driver• Constant Current Source• Automotive Lighting• General Illumination• Industrial Lighting


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