TLD1211SJ数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The TLD1211SJ is an integrated adjustable constant current source realized in a bipolar IC technology. The IC is designed to supply LEDs under the severe conditions of automotive applications resulting in constant brightness and extended LED lifetime. The TLD1211SJ is capable to drive high current, high brightness LEDs up to 2.5 A by using additional external output stages as “booster“ transistors. For LED currents up to 85mA the IC can be used as a stand alone device and requires only one voltage sense resistor as an external component. Protection circuits prevent damage to the device in case of overload, short circuit, over voltage, and overtemperature. Furthermore, the temperature dependent current reduction is able to protect LEDs which are thermally coupled to the IC. The integrated EN input of the TLD1211SJ enables LED brightness control by pulse width modulation.

特性 Features

• Adjustable Constant Output Current up to 85 mA
• LED Current of 2.5 A possible by using external Power Transistors
• Voltage Drop across Sense Resistor typ. 0.15 V
• Internal Bandgap Voltage Reference enables High Output Current accuracy
• EN Input for PWM brightness control
• Overvoltage Protection
• Temperature dependent Output Current Reduction
• Very Low Standby Current
• Maximum Operating Voltage 28 V
• Small SMD Package
• Green Product (RoHS compliant)
• AEC Qualified

优势:
• LED Controller for Automotive applications, Low- and High-Power LED
• Universal Constant Current Source
• Interior and Exterior Lighting
• Instrument backlighting
• Illumination

简介

TLD1211SJ属于集成电路（IC）的LED驱动器。由制造生产的TLD1211SJLED 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。