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SC614MLTRT

更新时间： 2024-11-07 03:02:03
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
页数 文件大小 规格书
25页 382K
描述
Low Noise Backlight and Flash Driver With Serial Interface

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中文翻译

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SC614MLTRT 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：QFN
包装说明：HVQCCN,针数：24
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.84
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-N24
JESD-609代码：e3长度：4 mm
复用显示功能：NO功能数量：1
区段数：5端子数量：24
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认证状态：Not Qualified
座面最大高度：1 mm最大供电电压：5.5 V
最小供电电压：3 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：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：30
宽度：4 mmBase Number Matches：1

SC614MLTRT 数据手册

 浏览型号SC614MLTRT的Datasheet PDF文件第2页浏览型号SC614MLTRT的Datasheet PDF文件第3页浏览型号SC614MLTRT的Datasheet PDF文件第4页浏览型号SC614MLTRT的Datasheet PDF文件第5页浏览型号SC614MLTRT的Datasheet PDF文件第6页浏览型号SC614MLTRT的Datasheet PDF文件第7页 
SC614  
Low Noise Backlight and Flash  
Driver With Serial Interface  
POWER MANAGEMENT  
Description  
Features  
The SC614 is a high efficiency charge pump LED driver ‹ Four independent current sinks for main backlight,  
using Semtech’s proprietary mAhXLifeTM technology.  
adjustable from 0.4mA to 32mA each  
Performance is optimized for use in Li-ion battery ‹ Dedicated MDIM pin for PWM dimming of main  
applications.  
backlight  
‹ Three independent current sinks for sub-backlight  
or flash, adjustable from 0.4mA to 102mA each  
Each of 7 LED currents can be programmed via the  
I2C serial control bus. M1 through M4 are for LED ‹ Configurable sub-backlight or flash sinks  
backlighting of LCD main displays. S1/FL3 through ‹ Dedicated SDIM pin for PWM dimming of sub-  
S3/FL1 can be used for backlighting sub displays and/  
backlight  
or for driving flash LEDs. These three current sinks are ‹ Dedicated FL pin for flash control  
configurable over the I2C interface for any combination ‹ Current accuracy to within ±1.5% down to 4.8mA  
of pins for sub or flash use.  
‹ Current matching to within ±0.5% down to 4.8mA  
‹ Very high efficiency over 90% of battery life  
The charge pump automatically selects an operating ‹ Shutdown current 0.1μA (typ)  
mode based on the number of active loads, input ‹ Three charge pump operating modes: 1x, 1.5x,  
voltage, and load currents required. Any combination of  
and 2x  
LED drivers can be enabled at one time, allowing the ‹ I2C serial interface  
SC614 to power any combination of backlight and flash ‹ Soft-start/in-rush current limiting  
required by the application.  
‹ 1.33MHz and 250kHz programmable fixed  
frequency options  
Two dedicated pins, MDIM and SDIM, are provided to ‹ Short-circuit/thermal protection  
allow PWM dimming of the main and sub-backlights and ‹ Output open circuit protection  
one dedicated pin, FL, allows direct control of the flash. ‹ MLPQ-24 package (4mm x 4mm), fully WEEE and  
All three pins can be utilized without having to use the  
RoHS compliant  
I2C interface once the registers are set up.  
Applications  
‹ Cellular phone backlighting and flash  
‹ LCD modules  
‹ PDA backlighting and flash  
‹ RGB LED Driver  
The enable pin can be used to put the device in  
low-current shutdown mode drawing 0.1μA (typ), or a reg-  
ister can be written that sets the device in a sleep mode  
that reduces the current to 50μA (typ).  
Typical Application Circuit  
MAIN BACKLIGHT  
FLASH  
VBAT  
VLOGIC  
U1  
328mA Max Continuous  
434mA Max (500ms)  
11  
9
VIN  
VOUT  
VOUT  
17  
16  
VIN  
R1  
R2  
Pull-up  
C1  
C2  
1u  
Pull-up  
D1  
D2  
D3  
D4  
D5  
2u2  
LED  
LED  
LED  
LED  
LED  
2
3
4
EN  
EN  
32mA Max  
32mA Max  
32mA Max  
32mA Max  
306mA Max.  
1
M1  
M2  
SDIM  
MDIM  
SDIM  
MDIM  
24  
23  
22  
20  
19  
18  
M3  
SC614  
M4  
7
8
SDA  
SCL  
SDA  
SCL  
S1/FL3  
S2/FL2  
S3/FL1  
6
FL  
FL  
5
12  
21  
ASEL  
GND  
GND  
Note: R1 and R2  
pull-up resistors are a  
requirement of the I2C  
specification  
C3 1u  
C4 1u  
April 28, 2006  
1
United States Patent No. 6,504,422  
www.semtech.com  
1234567...25

中文翻译

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