LM3421 Datasheet N-channel Controllers

Manufacturer: Texas Instruments

Overview: Product Folder Order Now Technical Documents Tools & Software Support & Community LM3421, LM3423 SNVS574G – JULY 2008 – REVISED JULY 2019 LM342x N -Channel Controllers for Constant-Current LED Drivers.

Datasheet Details

Part number	LM3421
Manufacturer	Texas Instruments
File Size	2.02 MB
Description	N-Channel Controllers
Datasheet	LM3421-etcTI.pdf

General Description

The LM3421 and LM3423 family of devices are versatile high voltage N-channel MOSFET controllers for LED drivers.

They can be easily configured in buck, boost, buck-boost and SEPIC topologies.

This flexibility, along with an input voltage rating of 75 V, makes the these controllers ideal for illuminating LEDs in a large family of applications.

Key Features

1 VIN Range From 4.5 V to 75 V.
High-Side Adjustable Current Sense.
2-Ω, 1-A Peak MOSFET Gate Driver.
Input Undervoltage and Output Overvoltage Protection.
PWM and Analog Dimming.
Cycle-by-Cycle Current Limit.
Programmable Switching Frequency.
Zero Current Shutdown and Thermal Shutdown.
LED Output Status Flag (LM3423 and LM3423-Q0 Only).
Fault Status Flag and Timer(LM3423 and LM3423-Q0 Only) 2.

LM3421 Distributor

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