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8-HSOP
Integrated Circuits (ICs)

LM3404MRX/NOPB

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Texas Instruments

42-V 1.0-A CONSTANT CURRENT BUCK LED DRIVER

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8-HSOP
Integrated Circuits (ICs)

LM3404MRX/NOPB

Active
Texas Instruments

42-V 1.0-A CONSTANT CURRENT BUCK LED DRIVER

Technical Specifications

Parameters and characteristics for this part

SpecificationLM3404MRX/NOPB
ApplicationsLighting
Current - Output / Channel [custom]1 A
DimmingPWM
Frequency1 MHz
GradeAutomotive
Internal Switch(s)True
Mounting TypeSurface Mount
Number of Outputs1
Operating Temperature [Max]125 ¯C
Operating Temperature [Min]-40 °C
Package / Case8-PowerSOIC
Package / Case [x]0.154 in
Package / Case [y]3.9 mm
Supplier Device Package8-SO PowerPad
TopologyStep-Down (Buck)
TypeDC DC Regulator
Voltage - Output40 V
Voltage - Supply (Max) [Max]42 V
Voltage - Supply (Min) [Min]6 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyCut Tape (CT) 1$ 1.94
10$ 1.74
25$ 1.64
100$ 1.40
250$ 1.31
500$ 1.15
1000$ 0.95
Digi-Reel® 1$ 1.94
10$ 1.74
25$ 1.64
100$ 1.40
250$ 1.31
500$ 1.15
1000$ 0.95
Tape & Reel (TR) 2500$ 0.89
5000$ 0.85
Texas InstrumentsLARGE T&R 1$ 1.46
100$ 1.20
250$ 0.86
1000$ 0.65

Description

General part information

LM3404HV Series

The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (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. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.

The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (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. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.