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LM3429 - 产品图解：
LM3429-用于恒流 LED 驱动器的 N 通道控制器
LM3429-LED照明-照明-LED驱动器-电源管理
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TI产品 - LM3429介绍

LM3429 - 用于恒流 LED 驱动器的 N 通道控制器

LM3429是TI德州仪器公司的一款LED照明-照明产品，LM3429是用于恒流 LED 驱动器的 N 通道控制器，本站介绍了LM3429的封装应用图解、特点和优点、功能等，并给出了与LM3429相关的TI元器件型号供参考。

LM3429 - 用于恒流 LED 驱动器的 N 通道控制器 - LED照明-照明 - LED驱动器 - 德州仪器

产品特性
  • 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
产品应用
  • LED Drivers - Buck, Boost, Buck-Boost, SEPIC
  • Indoor and Outdoor SSL
  • Automotive
  • General Illumination
  • Constant-Current Regulators
产品说明

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 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 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.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM3429HTSSOP (14)5.00 mm × 4.40 mm
LM3429-Q1
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