TLE4242G中文资料LITIX™ - 汽车级LED驱动IC数据手册Infineon规格书

描述 Description

The TLE 4242 G is an integrated adjustable constant current source driving loads up to 500 mA. The output current level can be adjusted via an external resistor. The IC is designed to supply high power LEDs (e.g. Osram Dragon LA W57B) under the severe conditions of automotive applications resulting in constant brightness and extended LED lifetime. It is provided in the surface mounted PG-TO263-7-1 package. Protection circuits prevent damage to the device in case of overload, short circuit, reverse polarity and overheat. The connected LEDs are protected against reverse polarity as well as excess voltages up to 45 V. The integrated PWM input of the TLE 4242 G permits LED brightness regulation by pulse width modulation. Due to the high input impedance of the PWM input the LED driver can be operated as a protected high side switch.

特性 Features

• Adjustable constant current up to 500 mA (±5%)
• Wide input voltage range up to 42 V
• Low drop voltage
• Open load detection
• Overtemperature protection
• Short circuit proof
• Reverse polarity proof
• Wide temperature range: -40°C to 150°C
• Green Product (RoHS compliant)
• AEC Qualified

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简介

TLE4242G属于集成电路（IC）的LED驱动器。由制造生产的TLE4242GLED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。