位置:LM3450AMTXSLASHNOPB.A > LM3450AMTXSLASHNOPB.A详情

LM3450AMTXSLASHNOPB.A中文资料

厂家型号

LM3450AMTXSLASHNOPB.A

文件大小

703.06Kbytes

页面数量

42

功能描述

LED Drivers with Active Power Factor Correction and Phase Dimming Decoder

数据手册

下载地址一下载地址二到原厂下载

简称

TI2德州仪器

生产厂商

Texas Instruments

中文名称

美国德州仪器公司官网

LOGO

LM3450AMTXSLASHNOPB.A数据手册规格书PDF详情

1FEATURES

2• Critical Conduction Mode PFC

• Over-Voltage Protection

• Feedback Short Circuit Protection

• 70:1 PWM Decoded From Phase Dimmer

• Analog Dimming

• Programmable Dimming Range

• Digital Angle and Dimmer Detection

• Dynamic Holding Current

• Smooth Dimming Transitions

• Low Power Operation

• Start-Up Pre-Regulator Bias

• Precision Voltage Reference

APPLICATIONS

• Dimmable Downlights, Troffers, and Lowbays

• Large Form Factor Bulbs

• Indoor and Outdoor Area SSL

• Power Supply PFC

DESCRIPTION

The LM3450/50A is a power factor controller (PFC)

with separate phase dimming decoder. The PFC

regulates the output voltage while maintaining

excellent power factor. The phase dimming decoder

interprets the phase angle and remaps it to a 500Hz

PWM output. This device is ideal for implementing a dimmable off-line LED driver for 10-100W loads.

The phase dimming decoder has several unique

features. The input-output mapping is programmable

for design flexibility, while a dynamic filter and

variable sampling rate provide smooth uniform

dimming. A dynamic hold circuit ensures that the phase dimmer angle is decoded properly while

minimizing extra power loss.

The LM3450A is identical to the LM3450 with the

exception of one circuit operation. The dynamic hold

current is sampled in the LM3450 while it

continuously operates in the LM3450A. This

difference between the two devices defines the suitable applications for each. The following is a

general guideline for choosing the correct device:

• Any 120V designs with POUT > 15W - LM3450A

• Any 230V designs with POUT > 25W - LM3450A

• 120V 2-Stage designs with POUT < 15W - LM3450

• 230V 2-Stage designs with POUT

更新时间:2025-7-22 11:00:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TI/德州仪器
23+
TSSOP16
50000
全新原装正品现货,支持订货
TI/德州仪器
24+
TSSOP16
60000
全新原装现货
TI/德州仪器
25+
TSSOP16
58788
百分百原装现货 实单必成 欢迎询价
NS
25+
TSSOP-16
3600
全新原装进口,公司现货!
NS
23+
TSSOP16
8650
受权代理!全新原装现货特价热卖!
NS
25+23+
TSSOP-16
17331
绝对原装正品全新进口深圳现货
NS
19+
TSSOP
16200
原装正品,现货特价
TI/德州仪器
23+
18
32732
原装正品代理渠道价格优势
TI/德州仪器
24+
TSSOP16
33050
原装现货假一赔十
NS/国半
23+
TSSOP16
5680
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、

TI2相关芯片制造商

  • TIANBO
  • TIMEGUARD
  • TIMES
  • TIMOTION
  • TIP
  • TITAN
  • TITANMEC
  • TITAN-US
  • TKP
  • TKPLUSEMI
  • TM
  • TMT

Texas Instruments 美国德州仪器公司

中文资料: 20023条

德州仪器(Texas Instruments),简称TI,是全球领先的半导体公司,为现实世界的信号处理提供创新的数字信号处理(DSP)及模拟器件技术。除半导体业务外,还提供包括传感与控制、教育产品和数字光源处理解决方案。TI总部位于美国德克萨斯州的达拉斯,并在25多个国家设有制造、设计或销售机构。德州仪器是推动互联网时代不断发展的半导体引擎,作为实时技术的领导者,TI正在快速发展,在无线与宽带接入等大型市场及数码相机和数字音频等新兴市场方面,凭借性能卓越的半导体解决方案不断推动着互联网时代的前进步伐。TI预想未来世界的方方面面都渗透着TI产品的点点滴滴,每个电话、每次上网、拍的每张照片、听的每