LM3429-Q1 - 用于恒流 LED 驱动器的 N 通道控制器

LM3429-Q1是TI德州仪器公司的一款汽车类LED驱动器产品，LM3429-Q1是用于恒流 LED 驱动器的 N 通道控制器，本站介绍了LM3429-Q1的封装应用图解、特点和优点、功能等，并给出了与LM3429-Q1相关的TI元器件型号供参考。

LM3429-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

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 NUMBER	PACKAGE	BODY SIZE (NOM)
LM3429	HTSSOP (14)	5.00 mm × 4.40 mm
LM3429-Q1	HTSSOP (14)	5.00 mm × 4.40 mm

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