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LM3407MY/NOPB

Led Driver, Buck, PWM Dimming, 4.5V-30V in, 1MHz switch, 27V/350mA out, MSOP-8

LM3407MY/NOPB - Led Driver, Buck, PWM Dimming, 4.5V-30V in, 1MHz switch, 27V/350mA out, MSOP-8

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Manufacturer Part No:
LM3407MY/NOPB
Newark Part No.:
78M7735
Technical Datasheet:
LM3407MY/NOPB   Datasheet
See all Technical Docs

Product Information

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:
Buck, Constant Current

:
4.5V

:
30V

:
27V

:
350mA

:
1MHz

:
1Outputs

:
SMD

:
MSOP PowerPAD

:
8Pins

:
-40°C

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (4)

Product Overview

The LM3407MY/NOPB is a constant current output floating buck Switching Converter designed to provide constant current to high power LEDs. The LM3407 has an integrated power N-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 300kHz to 1MHz. 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. Input UVLO and output open-circuit protection ensure a robust LED driver solution. The LM3407 is a constant current output floating buck switching converter with wide input voltage range and low feedback current sense reference voltage.
  • Accurate constant current output
  • Independent device enable (CMOS compatible) and PWM dimming control
  • Converter switching frequency adjustable from 300kHz to 1MHz
  • No external control loop compensation required
  • Supports ceramic and low ESR output capacitors
  • Input under-voltage lock out (UVLO)
  • Thermal shutdown protection
  • 0.1 to 0.9VIN Output voltage range
  • 150°C Junction temperature
  • 165°C Thermal shutdown threshold
  • 25°C Thermal shutdown hysteresis

Applications

Power Management, Lighting

Warnings

Device has limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.

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