ICL7660ACPAZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Converts input voltage to a negative output voltage - Low power consumption - Wide operating voltage range - High efficiency

Package: PDIP (Plastic Dual In-Line Package)

Essence: The ICL7660ACPAZ is a monolithic CMOS voltage converter that provides an easy and cost-effective solution for generating a negative voltage from a positive input voltage.

Packaging/Quantity: The ICL7660ACPAZ is available in a 8-pin PDIP package. It is typically sold in reels of 2,500 units.

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Rejection Ratio: 70dB
• Switching Frequency: 10kHz

Pin Configuration

The ICL7660ACPAZ has the following pin configuration:

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| | --| VOUT GND |-- Pin 1: Ground --| VIN V+ |-- Pin 2: Positive Input Voltage --| OSC1 OSC2 |-- Pins 3 and 4: Oscillator Connections --| C1 C2 |-- Pins 5 and 6: Capacitor Connections --| NC VOUT |-- Pin 7: Not Connected --| NC VOUT |-- Pin 8: Negative Output Voltage |___________| ```

Functional Features

• Voltage Conversion: The ICL7660ACPAZ converts a positive input voltage into a negative output voltage.
• Low Power Consumption: It operates with low power consumption, making it suitable for battery-powered applications.
• Wide Operating Voltage Range: It can accept input voltages ranging from 1.5V to 10V.
• High Efficiency: The voltage conversion process is highly efficient, minimizing power losses.

Advantages and Disadvantages

Advantages: - Simple and cost-effective solution for generating negative voltages - Low power consumption extends battery life in portable devices - Wide operating voltage range allows for versatile applications - High efficiency minimizes power losses

Disadvantages: - Limited output current capacity (up to 100mA) - Requires external capacitors for proper operation - Not suitable for high-power applications

Working Principles

The ICL7660ACPAZ utilizes a switched-capacitor technique to generate the negative output voltage. It employs an internal oscillator that controls the charge and discharge of two external capacitors connected to pins 5 and 6. By switching the capacitors' connections, the IC effectively creates a voltage inversion, resulting in a negative output voltage.

Detailed Application Field Plans

The ICL7660ACPAZ finds applications in various fields, including:

1. Portable Electronics: It is used to generate negative supply voltages for LCD displays, audio amplifiers, and other components in portable devices.
2. Industrial Automation: It can be employed in industrial control systems to provide negative voltages required by certain sensors and actuators.
3. Telecommunications: The IC is utilized in telecom equipment to generate negative bias voltages for operational amplifiers and other analog circuitry.
4. Automotive Electronics: It finds application in automotive systems where negative voltages are needed for specific components such as sensors and lighting modules.

Detailed and Complete Alternative Models

1. ICL7660CPA: Similar to ICL7660ACPAZ but available in a 8-pin DIP package.
2. MAX1044: A pin-compatible alternative with improved specifications and higher output current capability.
3. LTC1044: Another pin-compatible alternative with enhanced features such as adjustable output voltage.

These alternative models offer similar functionality to the ICL7660ACPAZ and can be considered based on specific application requirements.

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