Product Summary

The LM3404MA is a monolithic switching regulator which is designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, the LM3404MA contains a high-side N-channel MOSFET switch with a current limit of 1.5A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. LED dimming via pulse width modulation (PWM), broken/open LED protection, low power shutdown and thermal shutdown complete the feature set. The applications of the LM3404MA are: LED Driver, Constant Current Source, Automotive Lighting, General Illumination, Industrial Lighting.

Parametrics

LM3404MA absolute maximum ratings: (1)VIN to GND: -0.3V to 45V; (2)BOOT to GND: -0.3V to 59V; (3)SW to GND: -1.5V to 45V; (4)BOOT to VCC: -0.3V to 45V; (5)BOOT to SW: -0.3V to 14V; (6)VCC to GND: -0.3V to 14V; (7)DIM to GND: -0.3V to 7V; (8)CS to GND: -0.3V to 7V; (9)RON to GND: -0.3V to 7V; (10)Junction Temperature: 150℃; (11)Storage Temp. Range: -65℃ to 125℃; (12)ESD Rating (Note 2): 2kV; (13)Lead Temperature (Soldering, 10sec): 260℃; (14)Infrared/Convection Reflow (15sec): 235℃.

Features

LM3404MA features: (1)Integrated 1.0A MOSFET; (2)VIN Range 6V to 42V (LM3404); (3)VIN Range 6V to 75V (LM3404HV); (4)1.2A Output Current Over Temperature; (5)Cycle-by-Cycle Current Limit; (6)No Control Loop Compensation Required; (7)Separate PWM Dimming and Low Power Shutdown; (8)Supports all-ceramic output capacitors and capacitor-less outputs; (9)Thermal shutdown protection; (10)SO-8 Package, PSOP-8 Package.

Diagrams

LM3404MA Typical Application

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM3404MA
LM3404MA

National Semiconductor (TI)

LED Lighting Drivers

Data Sheet

0-285: $1.40
285-570: $1.16
570-1045: $0.98
1045-2565: $0.93
LM3404MA/NOPB
LM3404MA/NOPB

National Semiconductor (TI)

LED Lighting Drivers 1.0A CONSTANT CRNT BUCK REG

Data Sheet

0-1: $1.97
1-25: $1.58
25-100: $1.43
100-250: $1.40
LM3404MAX/NOPB
LM3404MAX/NOPB

National Semiconductor (TI)

LED Lighting Drivers

Data Sheet

0-1: $2.20
1-25: $1.79
25-100: $1.61
100-250: $1.46
LM3404MAX
LM3404MAX

National Semiconductor (TI)

LED Lighting Drivers

Data Sheet

0-2500: $0.93
2500-5000: $0.89