TC7660SCPA

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Converter
• Characteristics: Low-power, voltage doubling/inverting, charge pump
• Package: 8-pin PDIP (Plastic Dual In-line Package)
• Essence: Converts input voltage to a higher or lower output voltage using a charge pump circuit
• Packaging/Quantity: Available in tubes of 25 units

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V (inverting mode), 3V to 20V (doubling mode)
• Output Current: Up to 20mA
• Operating Temperature Range: -40°C to +85°C
• Supply Current: 120µA typical

Pin Configuration

The TC7660SCPA has the following pin configuration:

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| | --| V+ GND |-- Pin 1: Positive Supply Voltage (V+) --| VIN VOUT|-- Pin 2: Input Voltage (VIN) / Output Voltage (VOUT) --| OSC C1 |-- Pin 3: Oscillator Frequency Control (OSC) / External Capacitor (C1) --| C2 C3 |-- Pin 4: External Capacitor (C2) / External Capacitor (C3) --| C4 C5 |-- Pin 5: External Capacitor (C4) / External Capacitor (C5) --| C6 C7 |-- Pin 6: External Capacitor (C6) / External Capacitor (C7) --| C8 GND |-- Pin 7: External Capacitor (C8) / Ground (GND) --| V- GND |-- Pin 8: Negative Supply Voltage (V-) / Ground (GND) |___________| ```

Functional Features

The TC7660SCPA offers the following functional features:

1. Voltage Conversion: It can convert a low input voltage to a higher or lower output voltage, depending on the mode of operation.
2. Charge Pump Circuit: Utilizes a charge pump circuitry to efficiently generate the desired output voltage.
3. Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.
4. Wide Input Voltage Range: It accepts a wide range of input voltages, allowing flexibility in various applications.

Advantages and Disadvantages

Advantages: - Efficient voltage conversion - Low power consumption - Wide input voltage range - Compact package size

Disadvantages: - Limited output current capacity - Requires external capacitors for operation

Working Principles

The TC7660SCPA operates based on the principle of charge pumping. It uses an internal oscillator to control the switching of capacitors, which results in the generation of the desired output voltage. In the doubling mode, the input voltage is doubled, while in the inverting mode, the input voltage is inverted. The charge pump circuitry ensures efficient voltage conversion with minimal power loss.

Detailed Application Field Plans

The TC7660SCPA finds applications in various fields, including:

1. Portable Electronics: Used in battery-powered devices such as smartphones, tablets, and portable audio players to generate required voltage levels.
2. Automotive: Employed in automotive electronics for voltage conversion tasks, such as powering sensors, displays, and lighting systems.
3. Industrial Automation: Integrated into industrial control systems to provide necessary voltage levels for sensors, actuators, and communication modules.
4. Telecommunications: Utilized in telecommunications equipment for voltage conversion needs, including powering network components and signal conditioning.

Detailed and Complete Alternative Models

1. MAX1044: Similar voltage converter IC with comparable specifications.
2. ICL7660: Another alternative offering voltage conversion capabilities.
3. LT1054: Integrated circuit providing voltage doubling/inverting functionality.

These alternative models can be considered based on specific application requirements and availability.

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