TC7660

Features:

Converts +5V Logic Supply to ±5V System
Wide Input Voltage Range....................1.5V to 10V
Efficient Voltage Conversion.........................99.9%
Excellent Power Efficiency...............................98%
Low Power Supply...............................80µA @ 5V_IN
Low Cost and Easy to Use
- Only Two External Capacitors Required
RS232 Negative Power Supply
Available in Small Outline (SO) Package
Improved ESD Protection.......................Up to 3kV
No Dx Diode Required for High Voltage Operation




Pinout






Specifications

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

Supply Voltage.......................................................+10.5V
LV and OSC Inputs
Voltage (Note 1)................................ 0.3V to (V⁺ + 0.3V)
for V⁺< 5.5V(V⁺ 5.5V) to (V⁺ + 0.3V)........for V⁺> 5.5V
Current Into LV (Note 1).....................20 µA for V+> 3.5V
Output Short Duration (VSUPPLY5.5V).........Continuous
Power Dissipation (T_A70°C) (Note 2)
CerDIP...................................................................800mW
Plastic DIP..............................................................730mW
SOIC......................................................................470mW




Description

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.