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LT3468ES5-2 PDF预览

LT3468ES5-2

更新时间: 2024-11-04 04:19:35
品牌 Logo 应用领域
凌特 - Linear 模拟IC信号电路闪光灯光电二极管
页数 文件大小 规格书
12页 456K
描述
Photoflash Capacitor Chargers in ThinSOT

LT3468ES5-2 技术参数

是否Rohs认证:不符合生命周期:Transferred
零件包装代码:SOT包装说明:VSSOP, TSOP5/6,.11,37
针数:5Reach Compliance Code:not_compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.03Is Samacsys:N
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G5
JESD-609代码:e0长度:2.9 mm
湿度敏感等级:1功能数量:1
端子数量:5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:VSSOP封装等效代码:TSOP5/6,.11,37
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):235电源:3 V
认证状态:Not Qualified座面最大高度:1 mm
子类别:Power Management Circuits最大供电电压 (Vsup):16 V
最小供电电压 (Vsup):2.5 V标称供电电压 (Vsup):3 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:0.95 mm端子位置:DUAL
处于峰值回流温度下的最长时间:20宽度:1.625 mm
Base Number Matches:1

LT3468ES5-2 数据手册

 浏览型号LT3468ES5-2的Datasheet PDF文件第2页浏览型号LT3468ES5-2的Datasheet PDF文件第3页浏览型号LT3468ES5-2的Datasheet PDF文件第4页浏览型号LT3468ES5-2的Datasheet PDF文件第5页浏览型号LT3468ES5-2的Datasheet PDF文件第6页浏览型号LT3468ES5-2的Datasheet PDF文件第7页 
LT3468/LT3468-1/LT3468-2  
Photoflash Capacitor  
Chargers in ThinSOTTM  
U
FEATURES  
DESCRIPTIO  
The LT®3468/LT3468-1/LT3468-2 are highly integrated  
ICsdesignedtochargephotoflashcapacitorsindigitaland  
filmcameras. Apatentedcontroltechnique*allowsforthe  
useofextremelysmalltransformers.Eachdevicecontains  
anon-chiphighvoltageNPNpowerswitch.Outputvoltage  
detection* is completely contained within the device,  
eliminating the need for any discrete zener diodes or  
resistors. The output voltage can be adjusted by simply  
changing the turns ratio of the transformer. The LT3468  
has a primary current limit of 1.4A, the LT3468-2 has a 1A  
limit, and the LT3468-1 has a 0.7A limit. These different  
current limit levels result in well controlled input currents  
of 500mA for the LT3468, 375mA for the LT3468-2 and  
225mA for the LT3468-1. Aside from the differing current  
limit, the three devices are otherwise equivalent.  
Highly Integrated IC Reduces Solution Size  
Uses Small Transformers:  
5.8mm × 5.8mm × 3mm  
Fast Photoflash Charge Times:  
4.6s for LT3468 (0V to 320V, 100µF, VIN = 3.6V)  
5.7s for LT3468-2 (0V to 320V, 100µF, VIN = 3.6V)  
5.5s for LT3468-1 (0V to 320V, 50µF, VIN = 3.6V)  
Controlled Input Current:  
500mA (LT3468)  
375mA (LT3468-2)  
225mA (LT3468-1)  
Supports Operation from Single Li-Ion Cell, or Any  
Supply from 2.5V up to 16V  
Adjustable Output Voltage  
No Output Voltage Divider Needed  
Charges Any Size Photoflash Capacitor  
The CHARGE pin gives full control of the part to the user.  
DrivingCHARGElowputsthepartinshutdown. TheDONE  
pin indicates when the part has completed charging. The  
LT3468 series of parts are available in tiny low profile  
(1mm) SOT-23 packages.  
Low Profile (<1mm) SOT-23 Package  
U
APPLICATIO S  
Digital / Film Camera Flash  
PDA / Cell Phone Flash  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation. *U.S. Patent # 6, 518, 733  
Emergency Strobe  
U
TYPICAL APPLICATIO  
LT3468 Photoflash Charger Uses  
High Efficiency 4mm Tall Transformer  
LT3468 Charging Waveform  
DANGER HIGH VOLTAGE – OPERATION BY HIGH VOLTAGE  
TRAINED PERSONNEL ONLY  
VIN = 3.6V  
COUT = 100µF  
1:10.2  
V
IN  
320V  
2.5V TO 8V  
1
2
4
5
4.7µF  
VOUT  
50V/DIV  
+
100µF  
V
SW  
IN  
AVERAGE  
INPUT  
100k  
LT3468  
CURRENT  
DONE  
DONE  
GND  
1A/DIV  
1s/DIV  
3468 G01  
CHARGE  
CHARGE  
346812 TA01  
sn346812 346812fs  
1

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