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TC7660 Fiches technique(PDF) 1 Page - TelCom Semiconductor, Inc

No de pièce TC7660
Description  CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
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Fabricant  TELCOM [TelCom Semiconductor, Inc]
Site Internet  http://www.telcom-semi.com
Logo TELCOM - TelCom Semiconductor, Inc

TC7660 Fiches technique(HTML) 1 Page - TelCom Semiconductor, Inc

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TELCOM SEMICONDUCTOR, INC.
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6
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1
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8
TC7660
CHARGE PUMP DC-TO-DC VOLTAGE CONVERTER
FEATURES
s
Converts +5V Logic Supply to
±5V System
s
Wide Input Voltage Range .................... 1.5V to 10V
s
Efficient Voltage Conversion ......................... 99.9%
s
Excellent Power Efficiency ............................... 98%
s
Low Power Supply ............................... 80
µA @ 5V
IN
s
Low Cost and Easy to Use
— Only Two External Capacitors Required
s
RS232 Negative Power Supply
s
Available in Small Outline (SO) Package
s
Improved ESD Protection ....................... Up to 3kV
s
No Dx Diode Required for High Voltage Operation
GENERAL 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, eliminat-
ing inductors and their associated cost, size and EMI.
The on-board oscillator operates at a nominal fre-
quency 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.
ORDERING INFORMATION
Temperature
Part No.
Package
Range
TC7660COA
8-Pin SOIC
0
°C to +70°C
TC7660CPA
8-Pin Plastic DIP
0
°C to +70°C
TC7660EOA
8-Pin SOIC
– 40
°C to +85°C
TC7660EPA
8-Pin Plastic DIP
– 40
°C to +85°C
TC7660IJA
8-Pin CerDIP
– 40
°C to +85°C
TC7660MJA
8-Pin CerDIP
– 55
°C to +125°C
TC7660EV
Evaluation Kit for
Charge Pump Family
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
8
7
6
5
TC7660CPA
TC7660EPA
TC7660IJA
NC
CAP +
GND
CAP –
NC
CAP +
GND
CAP
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
NC = NO INTERNAL CONNECTION
1
2
3
4
8
7
6
5
TC7660COA
TC7660CPA
TC7660
GND
INTERNAL
VOLTAGE
REGULATOR
RC
OSCILLATOR
VOLTAGE–
LEVEL
TRANSLATOR
÷ 2
V + CAP +
82
7
6
OSC
LV
3
LOGIC
NETWORK
VOUT
5
CAP –
4
PIN CONFIGURATION (DIP and SOIC)
TC7660-7 9/30/96
EVALUATION
KIT
AVAILABLE


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