NCL30000LED3GEVB【PDF 1/22 页】BOARD EVAL 17W 350MA NONDIM DVR

收藏本站

您好，
买卖IC网欢迎您。
请登录
免费注册

买卖IC网

Sheet目录995

[1页]2页 3页 4页 5页

NCL30000

Power Factor Corrected

Dimmable LED Driver

The NCL30000 is a switch mode power supply controller intended

for low to medium power single stage power factor (PF) corrected

LED Drivers. The device is designed to operate in critical conduction

mode (CrM) and is suitable for flyback as well as buck topologies.

Constant on time CrM operation is particularly suited for isolated

flyback LED applications as the control scheme is straightforward and

very high efficiency can be achieved even at low power levels. These

are important in LED lighting to comply with regulatory requirements

and meet overall system luminous efficacy requirements. In CrM, the

switching frequency will vary with line and load and switching losses

are low as recovery losses in the output rectifier are negligible since

the current goes to zero prior to reactivating the main MOSFET

http://onsemi.com

SOIC ? 8

CASE 751

PIN CONNECTION

switch.

The device features a programmable on time limiter, zero current

detect sense block, gate driver, trans-conductance error amplifier as

well as all PWM control circuitry and protection functions required to

implement a CrM switch mode power supply. Moreover, for high

MFP

Comp

(Top View)

V CC

DRV

GND

ZCD

efficiency, the device features low startup current enabling fast, low

loss charging of the V CC capacitor. The current sense protection

threshold has been set at 500 mV to minimize power dissipation in the

external sense resistor. To support the environmental operation range

of Solid State Lighting, the device is specified across a wide junction

MARKING DIAGRAM

L0000

temperature range of ? 40 ? C to 125 ? C.

Features

ALYW

Very Low 24 m A Typical Startup Current

Constant On Time PWM Control

Cycle-by-Cycle Current Protection

Low Current Sense Threshold of 500 mV

Low 2 mA Typical Operating Current

= Assembly Location

= Wafer Lot

= Year

= Work Week

= Pb-Free Package

Source 500 mA/Sink 800 mA Totem Pole Gate Driver

ORDERING INFORMATION

Reference Design for TRIAC and Trailing Edge Line Dimmers

Wide Operating Temperature Range

No Input Voltage Sensing Requirement

Device

NCL30000DR2G

Package

SOIC ? 8

(Pb ? Free)

Shipping ?

2,500/Tape & Reel

Enable Function and Overvoltage Protection

These Devices are Pb-Free, Halogen Free/BFR Free and are RoHS

Compliant

?For information on tape and reel specifications,

including part orientation and tape sizes, please

refer to our Tape and Reel Packaging Specifications

Brochure, BRD8011/D.

Typical Applications

LED Driver Power Supplies

LED Based Down Lights

Commercial and Residential LED Fixtures

TRIAC Dimmable LED Based PAR Lamps

Power Factor Corrected Constant Voltage Supplies

? Semiconductor Components Industries, LLC, 2012

September, 2012 ? Rev. 1

Publication Order Number:

NCL30000/D

发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

*型号	*数量	厂商	批号	封装

添加更多采购

采购需求

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

我的联系方式