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LTC1697EMS#TR PDF预览

LTC1697EMS#TR

更新时间: 2024-09-25 13:09:43
品牌 Logo 应用领域
凌特 - Linear 稳压器开关
页数 文件大小 规格书
8页 103K
描述
LTC1697 - High Efficiency Low Power 1W CCFL Switching Regulator; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

LTC1697EMS#TR 技术参数

是否Rohs认证:不符合生命周期:Transferred
零件包装代码:MSOP包装说明:TSSOP,
针数:10Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.12Is Samacsys:N
接口集成电路类型:VACUUM FLUORESCENT DISPLAY DRIVERJESD-30 代码:S-PDSO-G10
JESD-609代码:e0长度:3 mm
湿度敏感等级:1复用显示功能:NO
功能数量:1区段数:1
端子数量:10最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装形状:SQUARE
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):235
认证状态:Not Qualified座面最大高度:1.1 mm
最大供电电压:5.5 V最小供电电压:2.8 V
标称供电电压:4 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Tin/Lead (Sn/Pb)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:20
宽度:3 mmBase Number Matches:1

LTC1697EMS#TR 数据手册

 浏览型号LTC1697EMS#TR的Datasheet PDF文件第2页浏览型号LTC1697EMS#TR的Datasheet PDF文件第3页浏览型号LTC1697EMS#TR的Datasheet PDF文件第4页浏览型号LTC1697EMS#TR的Datasheet PDF文件第5页浏览型号LTC1697EMS#TR的Datasheet PDF文件第6页浏览型号LTC1697EMS#TR的Datasheet PDF文件第7页 
LTC1697  
High Efficiency Low Power  
1W CCFL Switching Regulator  
U
DESCRIPTIO  
FEATURES  
The LTC®1697 is designed to control a single 1W cold  
cathode fluorescent lamp (CCFL). An internal PWM dim-  
ming system maximizes efficiency and dimming range.  
Accurate lamp currents can be set with a single external  
resistor.  
Operates from Single Li-Ion Battery  
2.8V to 5.5V Input Voltage Range  
Very Low Shutdown Current: <2µA  
Synchronous Buck Architecture for High Efficiency  
PWM Dimming Frequency Adjustable with a Single  
Capacitor  
The LTC1697 includes a synchronous current mode PWM  
controller with internal 1A MOSFET switches. It contains  
a 300kHz oscillator, 0.8V reference, and internal current  
sense. It operates from a 2.8V to 5.5V input voltage. The  
LTC1697 also has a thermal limit and a shutdown that  
reduces supply current to <2µA.  
Accurate Lamp Current Maximizes Lamp Lifetime  
Fixed Frequency Operation at 300kHz  
Internal or External PWM Dimming  
Small 10-Pin MSUOP Package  
APPLICATIO S  
The LTC1697 is available in the MSOP-10 package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
Protected by U.S. Patent 6522116.  
PDAs  
Handheld Computers  
Portable Instruments  
Handheld GPS with Map Display  
Handheld TV/Video Monitor  
U
TYPICAL APPLICATIO  
6
5
4
27pF  
1kV  
1
10  
2
3
ICCFL vs RPROG  
10  
9
8
V
IN  
330  
2.8V TO 5.5V  
0.15µF  
CCFL  
LAMP  
7
6
5
200k  
33µH  
4
3
+
V
SW 0V  
SEN  
IN  
Li-Ion  
CELL  
OFF ON  
DIMMING INPUT  
1V(0%) – 2V(100%)  
SHDN  
LTC1697  
V
C
LAMP  
DIM  
DIM  
2
4k  
R
V
C
PROG  
GND  
6k  
8k 10k  
()  
20k  
R
PROG  
10µF  
0.022µF  
0.1µF  
1967 TA01b  
8.25k  
1697 TA01  
1697f  
1

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