NCP1370数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The NCP1370 is a PWM current mode controller targeting isolated
flyback and non−isolated constant current topologies. The controller
operates in a quasi−resonant mode to provide high efficiency. Thanks
to a novel control method, the device is able to precisely regulate a
constant LED current from the primary side. This removes the need
for secondary side feedback circuitry, biasing and an opto−coupler.
The device is highly integrated with a minimum number of external
components. A robust suite of safety protection is built in to simplify
the design. This device supports analog/digital dimming and both
modes can be combined to enhance dimming precision. The NCP1370
has a programmable peak current limit to optimize design
compatibility over a wide range of applications. The controller
features a standby mode with reduced current consumption.

特性 Features

• Accurate Primary Side Sensing
• No opto coupler needed & Current regulation within ± 1%
• Quasi−resonant Peak Current−mode Control Operation
• High efficiency
• Line Feed−forward
• Improved regulation accuracy
• Programmable Cycle−by−Cycle Peak Current Limit
• Improved driver reliability
• Analog and/or PWM dimming
• Increased flexibility for different TV LED dimming technique's
• Secondary Diode Short Protection
• Avoids overheating in fault condition
• VCC Undervoltage and overvoltage protection
• Robust fault handling
• Open and Shorted Output LED Protection
• Robust fault handling of common LED system faults
• Brown−out
• Robust protection in case of low Ac mains

应用 Application

• LED TV's Backlight Controller
• LED TV's
• LED Power supply
• LED Light Engines

简介

NCP1370属于集成电路（IC）的LED驱动器。由制造生产的NCP1370LED 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。