5秒后页面跳转
LTC3490ES8#PBF PDF预览

LTC3490ES8#PBF

更新时间: 2024-02-26 15:54:43
品牌 Logo 应用领域
凌特 - Linear 驱动光电二极管接口集成电路
页数 文件大小 规格书
12页 148K
描述
LTC3490 - Single Cell 350mA LED Driver; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

LTC3490ES8#PBF 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.46接口集成电路类型:LED DISPLAY DRIVER
JESD-30 代码:R-PDSO-G8JESD-609代码:e3
长度:4.9025 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:8
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:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
电源:2.5 V认证状态:Not Qualified
座面最大高度:1.752 mm子类别:Display Drivers
最大供电电压:3.2 V最小供电电压:1 V
标称供电电压:2.5 V表面贴装:YES
技术:CMOS温度等级:INDUSTRIAL
端子面层:Matte Tin (Sn)端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3.9 mm
Base Number Matches:1

LTC3490ES8#PBF 数据手册

 浏览型号LTC3490ES8#PBF的Datasheet PDF文件第2页浏览型号LTC3490ES8#PBF的Datasheet PDF文件第3页浏览型号LTC3490ES8#PBF的Datasheet PDF文件第4页浏览型号LTC3490ES8#PBF的Datasheet PDF文件第5页浏览型号LTC3490ES8#PBF的Datasheet PDF文件第6页浏览型号LTC3490ES8#PBF的Datasheet PDF文件第7页 
LTC3490  
Single Cell 350mA  
LED Driver  
U
FEATURES  
DESCRIPTIO  
The LTC®3490 provides a constant current drive for 1W  
LED applications. It is a high efficiency boost converter  
that operates from 1 or 2 NiMH or alkaline cells and  
generates 350mA of constant current with up to 4V of  
compliance. It contains a 100mNFET switch and a  
130mPFET synchronous rectifier. The fixed switching  
frequency is internally set to 1.3MHz.  
350mA Constant Current Output  
2.8V to 4V Output Compliance  
1- or 2-Cell NiMH or Alkaline Input  
Synchronous Rectification: Up to 90% Efficiency  
Fixed Frequency Operation: 1.3MHz  
Low Quiescent Current: <1mA  
Very Low Shutdown Current: <50µA  
Open LED Output Limited to 4.7V  
TheLTC3490limitstheoutputvoltageto4.7Viftheoutput  
load is disconnected. It also features an analog dimming  
capability that reduces the drive current proportional to  
the CTRL/SHDN pin voltage. A low-battery logic output  
signals when the battery has dropped below 1V/cell. An  
undervoltage lockout circuit shuts down the LTC3490  
when the battery voltage drops below 0.85V/cell. The  
feedbackloopisinternallycompensatedtominimizecom-  
ponent count.  
VIN Range: 1V to 3.2V  
Dimming Control  
Undervoltage Lockout to Protect Batteries  
Low Profile (0.75mm) 3mm × 3mm Thermally  
Enhanced 8-Lead DD and S8 Packages  
U
APPLICATIO S  
Portable Lighting  
Rechargeable Flashlights  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
U
TYPICAL APPLICATIO  
Efficiency vs V at V  
= 3.5V  
Single Cell Minimum Component LED Driver  
IN  
LED  
100  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
3.3µH  
I
= 350mA  
OUT  
V
SW  
IN  
CAP  
ON/OFF  
LTC3490  
1 NiMH OR  
ALKALINE  
CELL  
350mA  
+
4.7µF  
HIGH  
CURRENT  
LED  
CTRL/SHDN LED  
CELLS LOBAT  
1M  
GND  
3490 TA01  
1
1.5  
2
2.5  
3
V
(V)  
IN  
3490 TA02  
3490fa  
1

与LTC3490ES8#PBF相关器件

型号 品牌 获取价格 描述 数据表
LTC3499 Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499 ADI

获取价格

具反向电池保护功能的 750mA 同步升压型 DC/DC 转换器
LTC3499_15 Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499B Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499B_15 Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499BEDD Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection
LTC3499BEDD#PBF Linear

获取价格

LTC3499 - 750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection; Pack
LTC3499BEDD#TR Linear

获取价格

LTC3499 - 750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection; Pack
LTC3499BEDD#TRPBF Linear

获取价格

暂无描述
LTC3499BEMS8 Linear

获取价格

750mA Synchronous Step-Up DC/DC Converters with Reverse-Battery Protection