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TC7660HCPA Datasheet(PDF) 1 Page - Microchip Technology

No. de pieza TC7660HCPA
Descripción Electrónicos  HIGH FREQUENCY 7660 DC-TO-DC VOLTAGE CONVERTER
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Fabricante Electrónico  MICROCHIP [Microchip Technology]
Página de inicio  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

TC7660HCPA Datasheet(HTML) 1 Page - Microchip Technology

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TC7660H-2 10/1/96
EVALUATION
KIT
AVAILABLE
TC7660H
© 2001 Microchip Technology Inc.
DS21466A
HIGH FREQUENCY 7660 DC-TO-DC VOLTAGE CONVERTER
FEATURES
s
Pin Compatible with 7660, High Frequency
Performance DC-to-DC Converter
s
Low Cost, Two Low Value External Capacitors
Required ........................................................ (1.0
µF)
s
Converts +5V Logic Supply to
±5V System
s
Wide Input Voltage Range .................... 1.5V to 10V
s
Voltage Conversion ........................................ 99.7%
s
Power Efficiency ................................................ 85%
s
Available in 8-Pin SOIC and 8-Pin PDIP Packages
GENERAL DESCRIPTION
The TC7660H is a pin-compatible, high frequency up-
grade to the Industry standard TC7660 charge pump volt-
age 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 TC7660H operates at a frequency of 120kHz
(versus 10kHz for the TC7660), allowing the use of 1.0
µF
external capacitors. Oscillator frequency can be reduced
(for lower supply current applications) by connecting an
external capacitor from OSC to ground.
The TC7660H is available in 8-pin DIP and small
outline (SOIC) packages in commercial and extended
temperature ranges.
FUNCTIONAL BLOCK DIAGRAM
ORDERING INFORMATION
Temperature
Part No.
Package
Range
TC7660HCOA
8-Pin SOIC
0
°C to +70°C
TC7660HCPA
8-Pin Plastic DIP
0
°C to +70°C
TC7660HEOA
8-Pin SOIC
– 40
°C to +85°C
TC7660HEPA
8-Pin Plastic DIP
– 40
°C to +85°C
TC7660EV
Evaluation Kit for
Charge Pump Family
TC7660H
GND
INTERNAL
VOLTAGE
REGULATOR
RC
OSCILLATOR
VOLTAGE–
LEVEL
TRANSLATOR
÷ 2
V + CAP +
82
7
6
OSC
LV
3
LOGIC
NETWORK
VOUT
5
CAP –
4
NC
CAP +
GND
CAP –
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
NC
CAP +
GND
CAP –
VOUT
LOW
VOLTAGE (LV)
OSC
+
V
NC = NO INTERNAL CONNECTION
8
7
6
5
1
2
3
4
1
8
2
7
3
6
4
5
TC7660HCPA
TC7660HEPA
TC7660HCOA
TC7660HEOA
PIN CONFIGURATION (DIP and SOIC)


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