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LT3468ES5-1#TR PDF预览

LT3468ES5-1#TR

更新时间： 2024-11-29 20:08:15
品牌 Logo 应用领域
凌特 - Linear 光电二极管
页数 文件大小 规格书
12页 298K
描述
IC SPECIALTY ANALOG CIRCUIT, PDSO5, PLASTIC, SOT-23, MO-193, 5 PIN, Analog IC:Other

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LT3468ES5-1#TR 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Transferred零件包装代码：TSOT
包装说明：VSSOP,针数：5
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.05
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：2.95 mm
湿度敏感等级：1功能数量：1
端子数量：5最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：VSSOP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
认证状态：Not Qualified座面最大高度：1 mm
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：COMMERCIAL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 mmBase Number Matches：1

LT3468ES5-1#TR 数据手册

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Final Electrical Specifications  
LT3468/LT3468-1  
Photoflash Capacitor  
Charger in ThinSOTTM  
October 2003  
U
DESCRIPTIO  
FEATURES  
TheLT®3468/LT3468-1arehighlyintegratedICsdesigned  
to charge photoflash capacitors in digital and film cam-  
eras. A new control technique* allows for the use of  
extremely small transformers. Each device contains an  
on-chip high voltage NPN power switch. Output voltage  
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 while the LT3468-1 has  
a 0.7A limit. These different current limit levels result in  
well controlled input currents of 500mA for the LT3468  
and 225mA for the LT3468-1. Aside from the differing  
current limit, the two 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)  
5.5s for LT3468-1 (0V to 320V, 50µF, VIN = 3.6V)  
■
Controlled Input Current:  
500mA (LT3468)  
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  
Low Profile (1mm) SOT-23 Package  
■
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 housed in tiny low profile  
(1mm) SOT-23 packages.  
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 S  
DANGER HIGH VOLTAGE – OPERATION BY HIGH VOLTAGE TRAINED PERSONNEL ONLY  
T1  
1:10.2  
T1  
D1  
D1  
1:10.2  
V
V
IN  
IN  
320V  
320V  
2.5V TO 8V  
1
2
4
5
2.5V TO 8V  
4
3
5
6
C1  
4.7µF  
C1  
4.7µF  
+
C
+
OUT  
C
OUT  
PHOTOFLASH  
CAPACITOR  
PHOTOFLASH  
CAPACITOR  
V
IN  
SW  
V
IN  
SW  
LT3468-1  
R1  
100k  
D2  
R1  
100k  
D2  
LT3468  
DONE  
DONE  
GND  
DONE  
DONE  
GND  
CHARGE  
CHARGE  
CHARGE  
CHARGE  
C1: 4.7µF, X5R OR X7R, 10V  
C1: 4.7µF, X5R OR X7R, 10V  
T1: KIJIMA MUSEN PART# SBL-5.6-1, L = 10µH, N = 10.2  
PRI  
T1: KIJIMA MUSEN PART# SBL-5.6S-1, L = 24µH, N = 10.2  
PRI  
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES  
D2: ZETEX ZHCS400 OR EQUIVALENT  
R1: PULL UP RESISTOR NEEDED IF DONE PIN USED  
D1: VISHAY GSD2004S DUAL DIODE CONNECTED IN SERIES  
D2: ZETEX ZHCS400 OR EQUIVALENT  
R1: PULL UP RESISTOR NEEDED IF DONE PIN USED  
3468 TA01  
3468 TA02  
Figure 1. LT3468 Photoflash Charger Uses  
High Efficiency 4mm Tall Transformer  
Figure 2. LT3468-1 Photoflash Charger Uses  
High Efficiency 3mm Tall Transformer  
34681i  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
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