Product Summary

The lm3401mmx is a switching controller designed to provide constant current to high power LEDs. The lm3401mmx 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. Applications of the lm3401mmx include: LED Driver and Battery Charger.

Parametrics

lm3401mmx absolute maximum ratings: (1) VIN: -0.3 to 36V; (2) CS: -2 to 36V; (3) SNS: -0.3 to 8V; (4) ILIM: -0.3 to 36V; (5) DIM: -0.3 to 4V; (6) Storage Temperature: -65 to 150°C; (7) Lead Temperature: 215°C; (8) Human Body Model: 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