ICL7662CBD-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Low power consumption - Wide input voltage range - High efficiency - Compact size

Package: DIP-8 (Dual In-line Package)

Essence: The ICL7662CBD-T is a voltage converter IC that provides a regulated negative voltage output from a positive input voltage. It is commonly used in applications where a negative voltage is required, such as in audio amplifiers, LCD displays, and industrial control systems.

Packaging/Quantity: The ICL7662CBD-T is available in a standard DIP-8 package. Each package contains one IC.

Specifications

• Input Voltage Range: 1.5V to 12V
• Output Voltage Range: -1.5V to -12V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Rejection Ratio: 70dB
• Quiescent Current: 120µA

Pin Configuration

The ICL7662CBD-T has eight pins arranged as follows:

___________ V+ --| |-- GND VIN --| |-- VOUT C1- --| |-- C1+ C2+ --| |-- C2- C3- --| |-- C3+ C4+ --| |-- C4- |___________|

Functional Features

• Voltage conversion from positive to negative
• Internal oscillator for frequency generation
• Overload and short-circuit protection
• Thermal shutdown protection
• External capacitor-based voltage multiplication

Advantages

• Low power consumption extends battery life in portable devices
• Wide input voltage range allows compatibility with various power sources
• High efficiency minimizes power loss and heat generation
• Compact size enables integration into space-constrained designs

Disadvantages

• Limited output current may not be suitable for high-power applications
• Requires external capacitors for voltage multiplication, increasing component count

Working Principles

The ICL7662CBD-T utilizes a charge pump voltage converter circuit to generate a negative voltage output. It employs an internal oscillator to control the switching of capacitors, which results in voltage multiplication. The input voltage is stepped up or down depending on the configuration of external capacitors.

Detailed Application Field Plans

The ICL7662CBD-T finds application in various fields, including:

1. Audio Amplifiers: Provides a negative voltage supply for audio amplification circuits.
2. LCD Displays: Generates the required negative voltage for driving LCD panels.
3. Industrial Control Systems: Used in control circuits that require a negative voltage reference.

Detailed and Complete Alternative Models

1. MAX660CPA: Voltage Converter IC with similar specifications and pin configuration.
2. ICL7660SCPAZ: Another voltage converter IC offering comparable features and performance.
3. LTC1044CN8: Integrated Circuit with voltage conversion capabilities suitable for various applications.

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

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