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SC623ULTRT

更新时间： 2024-11-18 03:00:11
品牌 Logo 应用领域
商升特 - SEMTECH 显示驱动器驱动程序和接口接口集成电路闪光灯泵
页数 文件大小 规格书
21页 275K
描述
LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, and SemWireTM Interface

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中文翻译

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SC623ULTRT 技术参数

是否无铅：不含铅是否Rohs认证：符合
生命周期：Active零件包装代码：QFN
包装说明：HVQCCN, LCC20,.11SQ,16针数：20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.71
Is Samacsys：N数据输入模式：SERIAL
接口集成电路类型：LED DISPLAY DRIVERJESD-30 代码：S-XQCC-N20
JESD-609代码：e3长度：3 mm
复用显示功能：NO功能数量：1
区段数：5端子数量：20
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：UNSPECIFIED封装代码：HVQCCN
封装等效代码：LCC20,.11SQ,16封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：260
电源：3.3/5 V认证状态：Not Qualified
座面最大高度：0.6 mm子类别：Display Drivers
最大供电电压：5.5 V最小供电电压：3 V
标称供电电压：3.2 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：MATTE TIN
端子形式：NO LEAD端子节距：0.4 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：3 mmBase Number Matches：1

SC623ULTRT 数据手册

 浏览型号SC623ULTRT的Datasheet PDF文件第2页浏览型号SC623ULTRT的Datasheet PDF文件第3页浏览型号SC623ULTRT的Datasheet PDF文件第4页浏览型号SC623ULTRT的Datasheet PDF文件第5页浏览型号SC623ULTRT的Datasheet PDF文件第6页浏览型号SC623ULTRT的Datasheet PDF文件第7页 
SC623  
LED Light Management Unit  
Charge Pump, 4 LEDs, 400mA Flash LED,  
and SemWireTM Interface  
POWER MANAGEMENT  
Features  
Description  
The SC623 is a high efficiency charge pump LED driver  
using Semtech’s proprietary mAhXLifeTM technology.  
Performance is optimized for use in single-cell Li-ion  
battery applications.  
„
„
„
Input supply voltage range — 3.0V to 5.5V  
Charge pump modes — 1x, 1.5x and 2x  
Four programmable current sinks with 32 steps from  
0.5mA to 25mA  
„
Flash LED — 400mA max in flash mode, 250mA max  
continuous for spotlight  
Charge pump frequency — 250kHz  
The charge pump provides backlight current in  
conjunction with four matched current sinks. It also can  
supply continuous or bursted current to a flash LED using  
the dedicated flash driver current sink. The load and  
supply conditions determine whether the charge pump  
operates in 1x, 1.5x, or 2x mode. An optional fading  
feature that gradually adjusts the backlight current is  
provided to simplify control software. A flash-timeout  
feature disables the flash if active for longer than 1  
second.  
„
„
„
„
„
„
„
„
„
„
„
SemWireTM single wire interface — up to 75kbit/s  
Backlight current accuracy 1.5ꢀ typical  
Backlight current matching 0.5ꢀ typical  
Programmable fade-in/fade-out for main backlight  
External flash control pin to sync with camera  
Optional 1s flash time out  
Automatic sleep mode (LEDs off) — IQ = 100μA  
Low shutdown current — 0.1μA (typical)  
Ultra-thin package — 3mm x 3mm x 0.6mm  
Fully WEEE and RoHS compliant  
The SC623 uses the proprietary SemWireTM single wire  
interface. The interface controls all functions of the device,  
including backlight and flash currents. The single wire  
implementation minimizes microcontroller and interface  
pin counts. The flash/spotlight output is triggered via  
either the SemWire interface or a dedicated pin.  
Applications  
„
„
Cellular phone backlighting and flash  
PDA backlighting and flash  
In sleep mode, the device reduces quiescent current to  
100μA while continuing to monitor the serial interface.  
Total current reduces to 0.1μA in shutdown.  
Typical Application Circuit  
MAIN BACKLIGHT  
FLASH  
VIN  
VOUT  
VBAT  
SemWire  
Interface  
Flash  
COUT  
4.7μF  
SWIF  
FLEN  
CIN  
2.2μF  
SC623  
Control  
BL1  
BL2  
BL3  
BL4  
FL  
GREF  
AGND  
PGND  
C1+ C1- C2+ C2-  
C1  
2.2μF  
C2  
2.2μF  
US Patents: 6,504,422; 6,794,926  
1
June 27, 2007  
© 2007 Semtech Corporation  
1234567...21

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