位置:LP3944ISQSLASHNOPB > LP3944ISQSLASHNOPB详情

LP3944ISQSLASHNOPB中文资料

厂家型号

LP3944ISQSLASHNOPB

文件大小

730.82Kbytes

页面数量

20

功能描述

LP3944 RGB/White/Blue 8-LED Fun Light Driver

数据手册

下载地址一下载地址二到原厂下载

生产厂商

TI2

LP3944ISQSLASHNOPB数据手册规格书PDF详情

1FEATURES

2• Internal Power-on Reset

• Active Low Reset

• Internal Precision Oscillator

• Variable Dim Rates (from 6.25 ms to 1.6s; 160

Hz–0.625 Hz)

APPLICATIONS

• Customized Flashing LED Lights for Cellular

Phones

• Portable Applications

• Digital Cameras

• Indicator Lamps

• General Purpose I/O Expander

• Toys

KEY SPECIFICATIONS

• 8 LED Driver (Multiple Programmable

States—On, Off, Input, and Dimming at a

Specified Rate)

• 8 Open Drain Outputs Capable of Driving up to

25 mA per LED

DESCRIPTION

LP3944 is an integrated device capable of

independently driving 8 LEDs. This device also

contains an internal precision oscillator that provides

all the necessary timing required for driving each

LED. Two prescaler registers along with two PWM

registers provide a versatile duty cycle control. The

LP3944 contains the ability to dim LEDs in

SMBUS/I2C applications where it is required to cut down on bus traffic.

Traditionally, to dim LEDs using a serial shift register such as 74LS594/5 would require a large amount of

traffic to be on the serial bus. LP3944 instead

requires only the setup of the frequency and duty

cycle for each output pin. From then on, only a single

command from the host is required to turn each

individual open drain output ON, OFF, or to cycle a

programmed frequency and duty cycle. Maximum

output sink current is 25 mA per pin and 200 mA per

package. Any ports not used for controlling the LEDs

can be used for general purpose input/output

expansion.

更新时间:2025-10-22 15:14:00
供应商 型号 品牌 批号 封装 库存 备注 价格
TexasInstruments
18+
ICLEDDRIVERRGB24-LLP
6800
公司原装现货/欢迎来电咨询!
TI
20+
原装
65790
原装优势主营型号-可开原型号增税票
NS
23+
QFN
25000
代理原装现货,假一赔十
Texas Instruments
24+
24-WFQFN 裸露焊盘
39500
一级代理/放心采购
NS
09+
LLP
3250
普通
TI
25+
QFN-24
1001
就找我吧!--邀您体验愉快问购元件!
NS/国半
23+
LLP
50000
全新原装正品现货,支持订货
TI
22+
24WQFN
9000
原厂渠道,现货配单
LP3944ISQX
25+
13463
13463
NS
23+
QFN24
13000
原厂授权一级代理,专业海外优势订货,价格优势、品种