5秒后页面跳转
捷配首页

Datasheet > SC668
SC668 PDF预览

SC668

更新时间： 2024-11-08 06:10:19
品牌 Logo 应用领域
商升特 - SEMTECH /
页数 文件大小 规格书
46页 853K
描述
8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs

阅读下载

中文翻译

获取价格

SC668 数据手册

 浏览型号SC668的Datasheet PDF文件第2页浏览型号SC668的Datasheet PDF文件第3页浏览型号SC668的Datasheet PDF文件第4页浏览型号SC668的Datasheet PDF文件第5页浏览型号SC668的Datasheet PDF文件第6页浏览型号SC668的Datasheet PDF文件第7页 
SC668  
8 LED Light Management Unit  
Automatic Dropout Prevention , Ambient Light  
Sense Input, PWM Dimming, and 4 LDOs  
POWER MANAGEMENT  
Features  
Description  
Eight LED backlight sinks with 32 current settings  
from — 0mA to 25mA  
Up to four LED backlight banks  
The SC668 is a highly integrated light management unit  
that provides programmable current for up to eight LED  
current sinksꢀ Four LED banks are provided to allow set-  
tings for various LED zones or indicatorsꢀ Four low-noise  
LDOs with programmable outputs ranging from 1ꢀ2V to 3ꢀ3V  
and 200mA maximum output current are also includedꢀ  
Lighting effects — fade-in/fade-out, breathe, blink,  
auto-dim full, and auto-dim partial functions  
ADP (Automatic Dropout Protection) for backlights  
ALS (Ambient Light Sense) option sets the backlight  
brightness according to ambient lighting conditions  
I2C Bus fast mode and standard mode  
Backlight current accuracy — 1ꢀ5ꢁ typical  
Backlight current matching — 0ꢀ5ꢁ typical  
Four programmable 200mA low-noise LDO regulators  
PWM interface (200Hz to 50kHz) with internal digital  
low-pass filter  
ADP limits the maximum LED current to a level that ensures  
the LEDs maintain matched currents when the supply  
voltage approaches dropoutꢀThis feature produces accept-  
able light output at low supply voltage levels without  
requiring a boost converter or charge pumpꢀ  
Two interfaces are provided for design flexibilityꢀ The I2C  
interface controls the LED on/off functions, assigns the  
LEDs to backlight banks, programs the LED currents, pro-  
grams the lighting effects, enables the LDOs, and sets the  
LDO output voltagesꢀ The PWM interface reduces the  
current setting for LED bank #1 by a factor equal to the duty  
cycle of the applied PWM signalꢀ A filter at the PWM input  
converts the pulsed signal to a DC current level, resulting in  
less switching noise compared to pulsed current methodsꢀ  
Automatic sleep mode with all LEDs off  
Shutdown current — 0ꢀ1µA typical  
Ultra-thin package — 3 x 3 x 0ꢀ6 (mm)  
Lead-free and halogen-free  
WEEE and RoHS compliant  
Applications  
Cellular phones, smart phones, and PDAs  
LCD modules  
Portable media players and digital cameras  
Personal navigation devices  
The ADI input translates the voltage from an external ALS  
(Ambient Light Sensor) into a digitized code using a sigma-  
delta ADCꢀ This block includes level detection to adjust the  
current setting of bank #1 with two different programmable  
levels based on the ambient light levelꢀ An interrupt output  
transitions low to notify the host processor that a level  
adjustment has been madeꢀ  
Display/keypad backlighting and LED indicators  
Typical Application Circuit  
VIN  
VIN  
CIN  
SC668  
2.9 to 5.5V  
IN  
BL1  
BL2  
BL3  
BL4  
BL5  
BL6  
BL7  
BL8  
GND  
RSDA  
RSCL  
I2C Data  
I2C Clock  
SDA  
SCL  
Backlight PWM  
Device Enable  
VLDO4  
PWM  
EN  
LDO1  
LDO2  
LDO3  
LDO4  
LDO1  
LDO2  
LDO3  
LDO4  
ADI  
BYP  
CBYP  
C1  
C2  
C3  
C4  
Ambient Light Sensor  
May 24, 2010  
1
© 2010 Semtech Corporation  
1234567...46

中文翻译

下载PDF

与SC668相关器件

型号 品牌 获取价格 描述 数据表
SC668EVB SEMTECH

获取价格

 		8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM
SC668ULTRT SEMTECH

获取价格

 		8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM
SC66-A QUECTEL

获取价格

 		Multi-mode Smart LTE Cat 6 Module with Wi-Fi & Bluetooth
SC66-CE QUECTEL

获取价格

 		Multi-mode Smart LTE Cat 6 Module with Wi-Fi & Bluetooth
SC66-E QUECTEL

获取价格

 		Multi-mode Smart LTE Cat 6 Module with Wi-Fi & Bluetooth
SC66-J QUECTEL

获取价格

 		Multi-mode Smart LTE Cat 6 Module with Wi-Fi & Bluetooth
SC66-MW QUECTEL

获取价格

 		Multi-mode Smart LTE Cat 6 Module with Wi-Fi & Bluetooth
SC680EYB CYPRESS

获取价格

 		Low Skew Clock Driver, 18 True Output(s), 0 Inverted Output(s), PDSO48, SSOP-48
SC68376BGMAB20 NXP

获取价格

 		32-BIT, FLASH, 20.97MHz, MICROCONTROLLER, PQFP160
SC685075JT9 VISHAY

获取价格

 		CAPACITOR, TANTALUM, SOLID, POLARIZED, 75 V, 6.8 uF, THROUGH HOLE MOUNT, AXIAL LEADED

与SC668相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证