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LM3424 - 产品图解：
LM3424-具有热折回的恒流 N 通道控制器，用于驱动 LED
LM3424-LED照明-照明-LED驱动器-电源管理
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TI产品 - LM3424介绍

LM3424 - 具有热折回的恒流 N 通道控制器，用于驱动 LED

LM3424是TI德州仪器公司的一款LED照明-照明产品，LM3424是具有热折回的恒流 N 通道控制器，用于驱动 LED，本站介绍了LM3424的封装应用图解、特点和优点、功能等，并给出了与LM3424相关的TI元器件型号供参考。

LM3424 - 具有热折回的恒流 N 通道控制器，用于驱动 LED - LED照明-照明 - LED驱动器 - 德州仪器

产品特性
  • LM3424-Q1 is an Automotive Grade Product That is AEC-Q100 Grade 1 Qualified
  • VIN Range from 4.5V to 75V
  • 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 Softstart and Slope Compensation
  • Programmable, Synchronizable Switching Frequency
  • Programmable Thermal Foldback
  • Precision Voltage Reference
  • Low Power Shutdown and Thermal Shutdown
产品应用
  • LED Drivers - Buck, Boost, Buck-Boost, and SEPIC
  • Indoor and Outdoor Area SSL
  • Automotive
  • General Illumination
  • Constant-Current Regulators
Typical Boost Application Circuit
产品说明

The LM3424 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. In addition, the LM3424 includes a thermal foldback feature for temperature management of the LEDs. This flexibility, along with an input voltage rating of 75 V, makes the LM3424 ideal for illuminating LEDs in a large family of applications.

Adjustable high-side current sense allows for tight regulation of the LED current with the highest efficiency possible. The LM3424 uses standard peak current-mode control providing inherent input voltage feed-forward compensation for better noise immunity. It is designed to provide accurate thermal foldback with a programmable foldback breakpoint and slope. In addition, a 2.45V reference is provided.

The LM3424 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 2.0 MHz and external synchronization is possible. The controller is capable of high speed PWM dimming and analog dimming.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM3424HTSSOP (20)6.50 mm x 4.40 mm
LM3424-Q1
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