ALED8102S数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The ALED8102S is a monolithic, low voltage, 8 low-side channels. The ALED8102S guarantees up to 20 V output driving capability allowing users to connect several LEDs in series. In the output stage, 8 regulated current sources provide from 5 mA to 100 mA constant current to drive the LEDs. Current is programmed though a single external resistor.The ALED8102S is equipped with a thermal management that protects the device forcing it in shutdown (typically: power-off at 170 °C with 15 °C hysteresis to restart). The thermal protection switches OFF the output channels only. The operative supply voltage range is between 3 V and 5.5 V. The output control is provided by four switch inputs, proving an on/off toggle action suitable also for local dimming. Moreover, on all active output LEDs brightness can be adjusted with a global PWM signal applied to the output enable pin (OE). Outputs can be connected in parallel, or left unconnected if not used, as required by the application.

特性 Features

• 8 constant current output channels controlled by four switch inputs
• Output enable input for global dimming
• Output current: from 5 mA to 100 mA
• Current programmable through external resistor
• Supply voltage: 3 V to 5.5 V
• Thermal shutdown
• 20 V current generator rated voltage
• Available in high thermal efficiency HTSSOP exposed pad package
• ESD protection 2.0 kV HBM, 100 V MM

简介

ALED8102S属于集成电路（IC）的LED驱动器。由制造生产的ALED8102SLED 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。