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LM3423 Datasheet PDF

Part Series:LM3423 Series
Category:LED Drivers
Description:LED Driver 5V/9V/12V/15V/18V/24V 20Pin HTSSOP EP Tube
Document:LM3423Q1MHX/NOPB Datasheet PDF (74 Pages)

LM3423 Datasheet PDF LED Drivers

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LM3423MH/NOPB - TI Specifications

TYPE
DESCRIPTION
Mounting Style
Surface Mount
Frequency
2 MHz
Number of Pins
20 Pin
Case/Package
TSSOP-20
Number of Outputs
1 Output
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LM3423MH/NOPB - TI Function Overview

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 LM3421 and LM3423 devices ideal for illuminating LEDs in a large family of applications.
Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible. The LM3421 and LM3423 devices use predictive off-time (PRO) control, which is a combination of peak current-mode control and a predictive off-timer. This method of control eases the design of loop compensation while providing inherent input voltage feed-forward compensation.
The LM3421 and LM3423 devices include a high-voltage start-up regulator that operates over a wide input range of 4.5 V to 75 V. The internal PWM controller is designed for adjustable switching frequencies of up to 2 MHz, thus enabling compact solutions.
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