TI LM3402HVMM/NOPB

The LM3402/HV 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 Nchannel 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.

• Integrated 0.5 - A N - channel MOSFET
• V_IN Range from 6 V to 42 V (LM3402)
• V_IN Range from 6 V to 75 V (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
• VSSOP, SO PowerPAD Packages

• LED Drivers
• Constant Current Source
• Automotive Lighting
• General Illumination
• Industrial Lighting