器件名称: TC1044SCOA
功能描述: Charge Pump DC-TO-DC Voltage Converter
文件大小: 92.79KB 共11页
简 介:EVALUATION KIT AVAILABLE
TC1044S
Charge Pump DC-TO-DC Voltage Converter
FEATURES
s s s s s s s s s s s 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 ............ 80A @ VIN = 5V Low Cost and Easy to Use — 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 Frequency Boost Raises FOSC to 45kHz
GENERAL DESCRIPTION
The TC1044S is a pin-compatible upgrade to the Industry 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, eliminating 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. The on-board oscillator operates at a nominal frequency 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). The TC1044S is available in both 8-pin DIP and 8-pin small outline (SOIC)……
