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TC7660EV

更新时间： 2024-11-25 22:36:55
品牌 Logo 应用领域
美国微芯 - MICROCHIP 转换器泵
页数 文件大小 规格书
11页 95K
描述
Charge Pump DC-TO-DC Voltage Converter

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中文翻译

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TC7660EV 数据手册

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EVALUATION  
KIT  
AVAILABLE  
TC1044S  
Charge Pump DC-TO-DC Voltage Converter  
FEATURES  
GENERAL DESCRIPTION  
■ Converts +5V Logic Supply to ±5V System  
■ Wide Input Voltage Range ....................1.5V to 12V  
■ Efficient Voltage Conversion......................... 99.9%  
■ Excellent Power Efficiency ............................... 98%  
■ Low Power Consumption ............ 80µA @ VIN = 5V  
■ Low Cost and Easy to Use  
The TC1044S is a pin-compatible upgrade to the Indus-  
try standard TC7660 charge pump voltage converter. It  
converts a +1.5V to +12V input to a corresponding –1.5V  
to –12V output using only two low cost capacitors, eliminat-  
ing inductors and their associated cost, size and EMI.  
Added features include an extended supply range to 12V,  
and a frequency boost pin for higher operating frequency,  
allowing the use of smaller external capacitors.  
— Only Two External Capacitors Required  
■ RS-232 Negative Power Supply  
■ Available in 8-Pin Small Outline (SOIC) and 8-Pin  
Plastic DIP Packages  
■ Improved ESD Protection ..................... Up to 10kV  
■ No External Diode Required for High Voltage  
Operation  
Theon-boardoscillatoroperatesatanominalfrequency  
of 10kHz. Frequency is increased to 45kHz when pin 1 is  
connected to V+. Operation below 10kHz (for lower supply  
current applications) is possible by connecting an external  
capacitor from OSC to ground (with pin 1 open).  
■ Frequency Boost Raises FOSC to 45kHz  
The TC1044S is available in both 8-pin DIP and  
8-pin small outline (SOIC) packages in commercial and  
extended temperature ranges.  
ORDERING INFORMATION  
PIN CONFIGURATION (DIP AND SOIC)  
Part No.  
Package  
Temp. Range  
TC1044SCOA  
TC1044SCPA  
TC1044SEOA  
TC1044SEPA  
TC1044SIJA  
TC1044SMJA  
TC7660EV  
8-Pin SOIC  
0°C to +70°C  
0°C to +70°C  
+
+
BOOST  
1
2
3
4
8
7
6
5
BOOST  
1
2
3
4
8
7
6
5
V
V
8-Pin Plastic DIP  
8-Pin SOIC  
+
+
TC1044SCPA  
TC1044SEPA  
TC1044SIJA  
TC1044SMJA  
CAP  
GND  
CAP  
GND  
OSC  
OSC  
TC1044SCOA  
TC1044SEOA  
– 40°C to +85°C  
– 40°C to +85°C  
– 25°C to +85°C  
– 55°C to +125°C  
LOW  
VOLTAGE (LV)  
LOW  
VOLTAGE (LV)  
8-Pin Plastic DIP  
8-Pin CerDIP  
8-Pin CerDIP  
–
–
V
V
CAP  
CAP  
OUT  
OUT  
Charge Pump Family Evaluation Kit  
FUNCTIONAL BLOCK DIAGRAM  
+
+
CAP  
V
8
2
1
BOOST  
VOLTAGE–  
LEVEL  
TRANSLATOR  
7
6
RC  
OSCILLATOR  
4
2
–
OSC  
LV  
CAP  
5
V
OUT  
INTERNAL  
VOLTAGE  
REGULATOR  
LOGIC  
NETWORK  
TC1044S  
3
GND  
© 2001 Microchip Technology Inc. DS21348A  
TC1044S-12 9/16/96  
1234567...11

中文翻译

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