TC7660 Datasheet

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  TC7660 Datasheet


The TC7660 is a pin-compatible replacement for the Industry standard TC7660 charge pump voltage converter. It converts a +1.5V to +10V input to a corresponding – 1.5V to -10V output using only two low-cost capacitors,eliminating inductors and their associated cost,size and EMI. The on-board oscillator operates at a nominal frequency of 10kHz.Operation below 10kHz (for lower supply current applications)is possible by connecting an external capacitor from OSC to ground (with pin 1 open). The TC7660 is available in both 8-pin DIP and 8-pin SOIC packages in commercial and extended temperature ranges.

Parameter Name  Value
Typical Active Output Current (mA)  20
Output Voltage (V)  Vout = -Vin or Vout = 2Vin
Typical Quiescent Current (µA)  80
Input Voltage Range (V)  1.5 to 10
Operating Temp. Range (°C)  -45 to 85
Device Description  Inverting or Doubling  

     Features
- Converts +5V Logic Supply to ±5V System
- Efficient Voltage Conversion: 99.9%
- Excellent Power Efficiency: 98%
- Low Power Supply: 80µA @ 5VIN
- Low Cost and Easy to Use — Only Two External Capacitors Required
- RS232 Negative Power Supply
- Improved ESD Protection: Up to 3kV
- No Dx Diode Required for High Voltage Operation


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