See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

DGN | 8

Temp:

Q (-40 to 125)

ECO Plan:

Green (RoHS & no Sb/Br)

LM3407MY/NOPB


350 mA, Constant Current Output Floating Buck Switching Converter for High Power LEDs

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250 - 499 $ 0.61
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750 - 999 $ 0.42
1000 - 9999 $ 0.34

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Texas Instruments LM3407MY/NOPB

The LM3407 device is a constant current output floating buck switching converter designed to provide constant current to high-power LEDs. The device is ideal for automotive, industrial, and general lighting applications. The LM3407 has an integrated power N-channel MOSFET that makes the application solution compact and simple to implement. An external 1% thick-film resistor allows the converter output voltage to adjust as needed to deliver constant current within 10% accuracy to a serially connected LED string of varying number and type. Converter switching frequency is adjustable from 300 kHz to 1 MHz. The LM3407 features a dimming input to enable LED brightness control by Pulse Width Modulation (PWM). Additionally, a separate enable pin allows for low-power shutdown. An exposed pad MSOP-8 package provides excellent heat dissipation and thermal performance. Input UVLO and output open-circuit protection ensure a robust LED driver solution.

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