LM3401 - 用于高功率 LED 驱动的滞后 PFET 控制器

LM3401是TI德州仪器公司的一款LED照明-照明产品，LM3401是用于高功率 LED 驱动的滞后 PFET 控制器，本站介绍了LM3401的封装应用图解、特点和优点、功能等，并给出了与LM3401相关的TI元器件型号供参考。

LM3401 - 用于高功率 LED 驱动的滞后 PFET 控制器 - LED照明-照明 - LED驱动器 - 德州仪器

产品描述

The LM3401 is a switching controller designed to provide constant current to high power LEDs. The LM3401 drives an external P-MOSFET switch for step-down (Buck) regulators. The LM3401 delivers constant current within ±6% accuracy to a wide variety and number of series connected LEDs. Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A.

For improved accuracy and efficiency, the LM3401 features dual-side hysteresis, very low reference voltage, and short propagation delay. A cycle by cycle current limit provides protection against over current and short circuit failures. Additional features include adjustable hysteresis and a CMOS compatible input pin for PWM dimming.

产品特性

Hysteretic Control for Speed and Simplicity
Input Operating Range of 4.5V-35V
1.5MHz Maximum Switching Frequency
Low 200mV Reference Voltage
Programmable Current Limit
High speed CMOS Compatible Enable/Dimming
Adjustable Hysteresis
Input UVLO
No output Capacitor Required
8-pin VSSOP Package

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