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TI LM3429Q1MHX/NOPB product image
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TI LM3429Q1MHX/NOPBRoHS

Manufacturer
TI
MPN
LM3429Q1MHX/NOPB
LCSC Part #
C527403
Packaging
HTSSOP-14-EP
Customer #
Key Attributes
N-Channel Controller for Constant Current LED Drivers
Datasheetpdf iconTI LM3429Q1MHX/NOPB
In-Stock: 86
86 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 3.5014$ 3.50
10+$ 3.0186$ 30.19
30+$ 2.7325$ 81.98
100+$ 2.4432$ 244.32
500+$ 2.3082$ 1154.10
1,000+$ 2.2481$ 2248.10
Standard Packaging2500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/LED Drivers ICs
ManufacturerTI
PackagingHTSSOP-14-EP
Output Voltage-
Frequency - Switching2MHz
FeaturesOver Voltage Protection;Over-Temperature Protection (OTP)
Switch Tube (Built-In/External)External
Voltage - Input(AC)-
Operating temperature-40℃~+125℃
Number of Channels1
TopologyBuck;Boost;Buck-Boost;SEPIC
Type-
Output Current-
Constant Current Accuracy-
Voltage - Input(DC)4.5V~75V
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging2500
Sales UnitPiece

Introduction

AI Translation

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.

Features

AI Translation
  • 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

Applications

AI Translation
  • LED Drivers - Buck, Boost, Buck-Boost, SEPIC
  • Indoor and Outdoor SSL
  • Automotive
  • General Illumination
  • Constant-Current Regulators