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TC7660S fiches techniques PDF

TelCom Semiconductor - SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER

Numéro de référence TC7660S
Description SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
Fabricant TelCom Semiconductor 
Logo TelCom Semiconductor 





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TC7660S fiche technique
EVALUATION
KIT
AVAILABLE
1
TC7660S
SUPER CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FEATURES
s Oscillator boost from 10kHz to 45kHz
s Converts +5V Logic Supply to ±5V System
s Wide Input Voltage Range .................... 1.5V to 12V
s Efficient Voltage Conversion ......................... 99.9%
s Excellent Power Efficiency ............................... 98%
s Low Power Supply .............................. 80µA @ 5 VIN
s Low Cost and Easy to Use
— Only Two External Capacitors Required
s Available in Small Outline (SOIC) Package
s Improved ESD Protection ..................... Up to 10kV
s No External Diode Required for High Voltage
Operation
ORDERING INFORMATION
Part No.
Package
Temperature
Range
TC7660SCOA
TC7660SCPA
TC7660SEJA
TC7660SEOA
TC7660SEPA
TC7660SMJA
TC7660EV
8-Pin SOIC
0°C to +70°C
8-Pin Plastic DIP
0°C to +70°C
8-Pin CerDIP
– 40°C to +85°C
8-Pin SOIC
– 40°C to +85°C
8-Pin Plastic DIP – 40°C to +85°C
8-Pin CerDIP
– 55°C to +125°C
Evaluation Kit for
Charge Pump Family
GENERAL DESCRIPTION
The TC7660S is a pin-compatible upgrade to the Indus-
try 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 TC7660S is available in both 8-pin DIP and 8-pin
small outline (SOIC) packages in commercial and extended
temperature ranges.
PIN CONFIGURATION (DIP and SOIC)
Boost 1
8 V+
CAP + 2
7 OSC
GND
CAP
3
4
TC7660SCPA
TC7660SEJA
TC7660SEPA
6
5
LOW
VOLTAGE (LV)
VOUT
Boost 1
CAP + 2
GND 3
CAP 4
8 V+
7 OSC
TC7660SCOA
6
LOW
VOLTAGE (LV)
TC7660SEOA
5 VOUT
2
3
4
5
FUNCTIONAL BLOCK DIAGRAM
BOOST
1
V + CAP +
82
6
OSC
LV
7 RC
OSCILLATOR
6
÷2
INTERNAL
VOLTAGE
REGULATOR
TC7660S
VOLTAGE–
LEVEL
TRANSLATOR
4 CAP
5 VOUT
LOGIC
NETWORK
7
TELCOM SEMICONDUCTOR, INC.
3
GND
TC7660S-14 9/16/96
4-69
8

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