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LM3423-Q1 - 产品图解：
LM3423-Q1-用于恒流 LED 驱动器的 N 通道控制器
LM3423-Q1-汽车类LED驱动器-LED驱动器-电源管理
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TI产品 - LM3423-Q1介绍

LM3423-Q1 - 用于恒流 LED 驱动器的 N 通道控制器

LM3423-Q1是TI德州仪器公司的一款汽车类LED驱动器产品，LM3423-Q1是用于恒流 LED 驱动器的 N 通道控制器，本站介绍了LM3423-Q1的封装应用图解、特点和优点、功能等，并给出了与LM3423-Q1相关的TI元器件型号供参考。

LM3423-Q1 - 用于恒流 LED 驱动器的 N 通道控制器 - 汽车类LED驱动器 - LED驱动器 - 德州仪器

产品特性
  • LM3421Q1/LM3423Q1 are Automotive Grade Products That are AEC-Q100 Grade 1 Qualified
  • LM3421Q0/LM3423Q0 are Automotive Grade Products That are AEC-Q100 Grade 0 Qualified
  • VIN Range From 4.5 V to 75 V
  • 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 Switching Frequency
  • Zero Current Shutdown and Thermal Shutdown
  • LED Output Status Flag (LM3423/23Q1/23Q0 Only)
  • Fault Status Flag and Timer (LM3423/23Q1/23Q0 Only)
产品应用
  • LED Drivers: Buck, Boost, Buck-Boost, and SEPIC
  • Indoor and Outdoor Area SSL
  • Automotive
  • General Illumination
  • Constant-Current Regulators
产品说明

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.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM3421HTSSOP (16)5.00 mm × 4.40 mm
LM3421-Q1
LM3423HTSSOP (20)6.50 mm × 4.40 mm
LM3423-Q1
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