LM3402
Features
- 1 Integrated 0.5-A N-channel MOSFET
- VIN Range from 6 V to 42 V (LM3402)
- VIN Range from 6 V to 75 V (LM3402HV)
- 500 m A Output Current Over Temperature
- Cycle-by-Cycle Current Limit
- No Control Loop pensation Required
- Separate PWM Dimming and Low Power
Shutdown
- Supports All Ceramic-Output Capacitors and
Capacitor-Less Outputs
- Thermal Shutdown Protection
- VSSOP, SO Power PAD™ Packages
2 Applications
- LED Drivers
- Constant Current Source
- Automotive Lighting
- General Illumination
- Industrial Lighting
3 Description
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 m A (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...
