LM3402MR/NOPB

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LM3402MR/NOPB

0.5A Constant Current Buck Regulator for High Power LED Drivers

Qty Price
1-9 $2.02
10-24 $1.81
25-99 $1.68
100-249 $1.46
250-499 $1.35
500-749 $1.13
750-999 $0.93
1000+ $0.85

Features

  • 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 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

Texas Instruments  LM3402MR/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 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.

For all available packages, see the orderable addendum at the end of the data sheet.