DC-DC CHARGE PUMP VOLT. CONVERTER, TC1044SCPA 8P-DIP

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PID# 160509

CA$4.50
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Description

TC1044 charge pump voltage converter in an 8 pin DIP package. 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).

Features

  • 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
  • Only Two External Capacitors Required
  • RS-232 Negative Power Supply
  • 8-Pin Plastic DIP Package
  • Improved ESD Protection: Up to 10kV
  • No External Diode Required for High Voltage Operation
  • Frequency Boost Raises FOSC to 45kHz

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