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LM3429-Q1

Texas Instruments
Part Number LM3429-Q1
Manufacturer Texas Instruments
Description N-Channel Controller
Published Apr 8, 2020
Detailed Description Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3429, LM3429-Q1 SNVS616H – A...
Datasheet PDF File LM3429-Q1 PDF File

LM3429-Q1
LM3429-Q1

Overview
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM3429, LM3429-Q1 SNVS616H – APRIL 2009 – REVISED JULY 2015 LM3429/-Q1 N-Channel Controller for Constant Current LED Drivers 1 Features •1 LM3429-Q1 is AEC-Q100 Grade 1 Qualified for Automotive Applications • VIN Range From 4.
5 V to 75 V • Adjustable Current Sense Voltage • High-Side Current Sensing • 2-Ω, 1-A Peak MosFET Gate Driver • Input Undervoltage Protection • Overvoltage Protection • PWM Dimming • Analog Dimming • Cycle-by-Cycle Current Limit • Programmable Switching Frequency • Low Profile 14-lead HTSSOP Package • Thermal Shutdown 2 Applications • LED Drivers - Buck, Boost, Buck-Boost, SEPIC • Indoor and Outdoor SSL • Automotive • General Illumination • Constant-Current Regulators 3 Description The LM3429 is a versatile high voltage N-channel MosFET controller for LED drivers.
It can be easily configured in buck, boost, buck-boost and SEPIC topologies.
This flexibility, along with an input voltage rating of 75V, makes the LM3429 ideal for illuminating LEDs in a very diverse, large family of applications.
Adjustable high-side current sense voltage allows for tight regulation of the LED current with the highest efficiency possible.
The LM3429 uses Predictive Offtime (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 LM3429 includes a high-voltage startup 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.
Additional features include analog dimming, PWM dimming, overvoltage protection, undervoltage lock-out, cycle-by-cycle current limit, and thermal shutdown.
Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) LM3429 LM3429-Q1 HTSSOP (14) 5.
00 mm × ...


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