NCL35076中文资料Wide Analog Dimming CCM Buck Controller数据手册ONSEMI规格书

描述 Description

The NCL35076 is a DC-DC buck controller for wide dimming range down
to 1% by analog dimming control to relieve audible noise and flicker in
PWM dimming. ON’s proprietary LED current calculation technique
driven by zero input offset amplifiers performs precise constant current in
the whole analog dimming range. Multi-mode operation provides low LED
current ripple with small output capacitor by CCM at heavy load and deep
analog dimming by DCM at light load.

特性 Features

• Zero input offset Amplifiers at LED current calculator block and OTA
• Precise CC regulation:
• CCM to DCM transition by dimming condition
• Wide Analog Dimming Range; 1~100%
• PWM Dimming by PWM signal
• Keep Constant LED color temperature
• Standby mode operation
• Low standby power consumption
• Various Protections; Auto Restart (AR) - VDD Over Voltage Protection (OVP) - Short LED Protection (SLP) - Over Current Protection (OCP) - Thermal Shut Down (TSD)
• High system reliability
• CCM operation at full load
• High efficiency and low profile design

应用 Application

• LED Lighting
• Smart LED Driver
• LED lamp
• LED tube
• LED street light
• LED ceiling light

简介

NCL35076属于集成电路（IC）的LED驱动器。由制造生产的NCL35076LED 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。