Hysteretic PFET Controller For High Power LED Drive

The LM3401 is a switching controller designed to provide constant current to high power LEDs The LM3401 drives an external P-MOSFET Switch for Step-down (Buck) Regulators The LM3401 delivers constant current within 6% accuracy to a wide variety and number of series connected LEDs Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A.
For improved accuracy and efficiency, the LM3401 features dual-side hysteresis, very low reference voltage, and short propagation delay. A cycle by cycle current limit provides protection against over current and short circuit failures. Additional features include adjustable hysteresis and a CMOS compatible input pin for PWM dimming.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM3401MMX/S7002590 Texas Instruments Hysteretic PFET Controller for High Power LED Drive 8-VSSOP
LM3401MMX/NOPB Texas Instruments Hysteretic PFET Controller for High Power LED Drive 8-VSSOP -40 to 125
LM3401MM/NOPB Texas Instruments Hysteretic PFET Controller for High Power LED Drive 8-VSSOP -40 to 125
LM3401 's PackagesLM3401 's pdf datasheet
LM3401MM SOIC
LM3401MMX SOIC




LM3401 Pinout, Pinouts
LM3401 pinout,Pin out
This is one package pinout of LM3401,If you need more pinouts please download LM3401's pdf datasheet.

LM3401 Application circuits
LM3401 circuits
This is one application circuit of LM3401,If you need more circuits,please download LM3401's pdf datasheet.


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