NCL31010MNITWG集成電路（IC）的LED驅(qū)動(dòng)器規(guī)格書(shū)PDF中文資料

NCL31010MNITWG屬于集成電路（IC）的LED驅(qū)動(dòng)器。由安森美半導(dǎo)體公司制造生產(chǎn)的NCL31010MNITWGLED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過(guò)標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類(lèi)似產(chǎn)品的主要區(qū)別在于，這類(lèi)器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通常可對(duì)器件工作點(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。

Description

The NCL31010 is a member of the onsemi Power over Ethernet

Powered Device (PoE?PD) product family and integrates an IEEE

802.3bt PoE?PD interface controller, a dual step?down converter and a

buck convertor LED driver. The NCL31010 incorporates all the

required functions for operation within a PoE system such as detection,

classification and current limiting during the inrush phase. The

NCL31010 contains synchronous step?down DC/DC converters for the

main 3.3 V system supply as well as an auxiliary supply. In addition, the

NCL31010 also integrates a current mode buck DC/DC controller

designed to operate as a LED driver. The LED driver supports both

PWM dimming and high?bandwidth analog dimming.

The NCL31010 supports high?power applications (up to 90 W PoE).

Features

? Fully Supports IEEE 802.3af/at and 802.3bt Specifications

? Assigned Power Level Up to 90 W

? Proprietary 100 W+ Applications

? Supports Autoclass

? HV Maintain Power PWM Output (MPS)

? Integrated 3.3 V Buck Convertor

? Integrated Adjustable Buck Convertor 2.5 ? 24 V

? Integrated High Efficiency Buck LED Driver

? Adjustable Switching Frequency 44.4 kHz to 1 MHz

? Deep Dimming to Zero with Accuracy of 0.1 Using Internal

Precision 2.4 V Reference

? Best in Class Linearity

? High Modulation Bandwidth (~50 kHz)

? Visual Light Communication Capable

? Yellow?Dot Compliant

? Internal DIM DAC for Independent LED Control During

Micro?controller Re?flashing (Warm Boot)

? Low EMI Reference Design

? I2C/SPI Interface (NCL31010I/NCL31010S)

? High Accuracy Diagnostic Functions to Measure Voltages/Currents

? Protection against LED Shorts & Opens

? LED Over/Under Voltage & Over Current Protection

? Chip Over Current Protection

? Chip & LED Over Temperature Protection

? Junction Temperature Range of ?40°C to +125°C

? Available in 48?pin QFN 7x7

? These Devices are Pb?Free and are RoHS Compliant