TC7660S

Features:

Oscillator boost from 10kHz to 45kHz
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 Supply..............................80A @ 5 V_IN
Low Cost and Easy to Use
- Only Two External Capacitors Required
Available in Small Outline (SOIC) Package
Improved ESD Protection ..................... Up to 10kV
No External Diode Required for High Voltage Operation




Pinout






Specifications

Supply Voltage......................................................... +13V
LV, Boost, 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)......................20A for V⁺ > 3.5V
Output Short Duration (V_SUPPLY 5.5V) .........Continuous
Power Dissipation (T_A 70°C) (Note 2)
CerDIP............................................................800mW
Plastic DIP ......................................................730mW
SOIC...............................................................470mW
Operating Temperature Range
C Suffix ..................................................0°C to +70°C
E Suffix ............................................. 40°C to +85°C
M Suffix........................................... 55°C to +125°C
Storage Temperature Range ................ 65°C to +150°C
Lead Temperature (Soldering, 10 sec) .................+300°C

*Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

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 12
Device Description	Inverting or Doubling

Description

The TC7660S 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 TC7660S 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 TC7660S is available in both 8-pin DIP and 8-pin small outline (SOIC) packages in commercial and extended temperature ranges.