Product Summary

The LM3401MMX 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 LM3401MMX 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. The applications of the LM3401MMX include LED Driver and Battery Charger.

Parametrics

LM3401MMX absolute maximum ratings: (1)VIN: -0.3V to 36V; (2)CS: -2.0V to 36V; (3)SNS: -0.3V to 8V; (4)ILIM: -0.3V to 36V; (5)DIM: -0.3V to 36V; (6)HYS: -0.3V to 4V; (7)Storage Temperature: -65 to +150℃; (8)Lead Temperature, Vapor Phase (60sec): 215℃; Infrared (15sec): 220℃; (9)ESD Rating: 2.5kV.

Features

LM3401MMX features: (1)Hysteretic Control for Speed and Simplicity; (2)Input Operating Range of 4.5V-35V; (3)1.5MHz maximum switching frequency; (4)Low 200mV reference voltage; (5)Programmable current limit; (6)High speed CMOS compatible enable/dimming; (7)Adjustable hysteresis; (8)Input UVLO; (9)No output capacitor required; (10)MSOP-8 package.

Diagrams

LM3401MMX block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM3401MMX/NOPB
LM3401MMX/NOPB

National Semiconductor (TI)

LED Lighting Drivers

Data Sheet

0-1: $0.94
1-10: $0.85
10-25: $0.76
25-100: $0.51
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM34
LM34

Other


Data Sheet

Negotiable 
LM340
LM340

Other


Data Sheet

Negotiable 
LM3401EVAL
LM3401EVAL


BOARD EVALUATION FOR LM3401

Data Sheet

0-1: $30.62
LM3401EVAL/NOPB
LM3401EVAL/NOPB

National Semiconductor (TI)

LED Lighting Development Tools LM3401 EVAL BOARD

Data Sheet

0-1: $23.93
LM3401MM/NOPB
LM3401MM/NOPB

National Semiconductor (TI)

LED Lighting Drivers HYSTERETIC PFET CONTROLLER

Data Sheet

0-1: $0.94
1-10: $0.85
10-25: $0.76
25-100: $0.51
LM3401MMX/NOPB
LM3401MMX/NOPB

National Semiconductor (TI)

LED Lighting Drivers

Data Sheet

0-1: $0.94
1-10: $0.85
10-25: $0.76
25-100: $0.51