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LTC1144CN8 PDF预览

LTC1144CN8

更新时间： 2024-09-29 22:34:15
品牌 Logo 应用领域
凌特 - Linear 转换器稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数 文件大小 规格书
8页 237K
描述
Switched-Capacitor Wide Input Range Voltage Converter with Shutdown

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中文翻译

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LTC1144CN8 技术参数

是否Rohs认证：不符合生命周期：Transferred
零件包装代码：DIP包装说明：DIP, DIP8,.3
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.11Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHED CAPACITOR CONVERTER最大输入电压：18 V
最小输入电压：2 VJESD-30 代码：R-PDIP-T8
JESD-609代码：e0湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：70 °C最低工作温度：
最大输出电流：0.02 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装等效代码：DIP8,.3
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
座面最大高度：3.937 mm子类别：Other Analog ICs
最大供电电流 (Isup)：1.3 mA表面贴装：NO
切换器配置：DOUBLER INVERTER最大切换频率：10 kHz
技术：CMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：7.62 mm
Base Number Matches：1

LTC1144CN8 数据手册

 浏览型号LTC1144CN8的Datasheet PDF文件第2页浏览型号LTC1144CN8的Datasheet PDF文件第3页浏览型号LTC1144CN8的Datasheet PDF文件第4页浏览型号LTC1144CN8的Datasheet PDF文件第5页浏览型号LTC1144CN8的Datasheet PDF文件第6页浏览型号LTC1144CN8的Datasheet PDF文件第7页 
LTC1144  
Switched-Capacitor  
Wide Input Range  
Voltage Converter  
with Shutdown  
U
DESCRIPTIO  
EATURE  
S
F
■
■
■
■
■
■
Wide Operating Supply Voltage Range: 2V to 18V  
Boost Pin (Pin 1) for Higher Switching Frequency  
Simple Conversion of 15V to –15V Supply  
Low Output Resistance: 120Ω Maximum  
Power Shutdown to 8µA with SHDN Pin  
Open Circuit Voltage Conversion Efficiency:  
99.9% Typical  
The LTC1144 is a monolithic CMOS switched-capacitor  
voltage converter. It performs supply voltage conversion  
frompositivetonegativefromaninputrangeof2Vto18V,  
resulting in complementary output voltages of –2V to  
–18V. Only two noncritical external capacitors are needed  
for the charge pump and charge reservoir functions.  
The converter has an internal oscillator that can be  
overdriven by an external clock or slowed down when  
connected to a capacitor. The oscillator runs at a 10kHz  
frequency when unloaded. A higher frequency outside the  
audio band can also be obtained if the Boost Pin is tied to  
V+. The SHDN pin reduces supply current to 8µA and can  
be used to save power when the converter is not in use.  
■
■
Power Conversion Efficiency: 93% Typical  
Easy to Use  
O U  
PPLICATI  
S
A
■
■
■
■
■
■
■
Conversion of 15V to ±15V Supplies  
Inexpensive Negative Supplies  
Data Acquisition Systems  
The LTC1144 contains an internal oscillator, divide-by-  
two, voltage level shifter, and four power MOSFETs. A  
special logic circuit will prevent the power N-channel  
switch substrate from turning on.  
High Voltage Upgrade to LTC1044 or 7660  
Voltage Division and Multiplications  
Automotive Applications  
Battery Systems with Wall Adapter/Charger  
U
O
TYPICAL APPLICATI  
Generating –15V from 15V  
Output Voltage vs Load Current, V+ = 15V  
–15  
LTC1144  
R
T
= 56Ω  
OUT  
= 25°C  
1
2
3
4
8
7
6
5
+
15V INPUT  
BOOST  
V
A
–14  
–13  
–12  
–11  
–10  
+
CAP  
OSC  
+
10µF  
GND  
SHDN  
–
–15V OUTPUT  
CAP  
V
OUT  
10µF  
+
1144 TA01  
0
10  
20  
30  
40  
50  
LOAD CURRENT (mA)  
1144 TA02  
1
12345678

中文翻译

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