ICL7662CBD

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Low power consumption - Wide input voltage range - High output current capability - Compact package size

Package: DIP (Dual In-line Package)

Essence: The ICL7662CBD is a monolithic CMOS voltage converter that provides an easy and efficient way to generate a negative voltage from a positive input voltage.

Packaging/Quantity: The ICL7662CBD is available in a standard 8-pin DIP package. It is typically sold in reels or tubes containing multiple units.

Specifications

The ICL7662CBD has the following specifications:

• Input Voltage Range: 1.5V to 12V
• Output Voltage Range: -1.5V to -12V
• Output Current: Up to 40mA
• Operating Temperature Range: -40°C to +85°C
• Supply Current: 120µA (typical)
• Switching Frequency: 10kHz (typical)

Pin Configuration

The ICL7662CBD features an 8-pin DIP package with the following pin configuration:

1. GND (Ground)
2. VOUT (Negative Output Voltage)
3. VIN (Positive Input Voltage)
4. OSC (Oscillator Frequency Control)
5. C1- (Negative Terminal of Flying Capacitor)
6. C1+ (Positive Terminal of Flying Capacitor)
7. C2+ (Positive Terminal of Output Capacitor)
8. C2- (Negative Terminal of Output Capacitor)

Functional Features

The ICL7662CBD offers the following functional features:

• Voltage conversion from positive to negative
• Internal oscillator for frequency control
• Flying capacitor architecture for efficient operation
• Short-circuit protection
• Thermal shutdown protection

Advantages and Disadvantages

Advantages: - Low power consumption - Wide input voltage range - High output current capability - Compact package size - Internal oscillator simplifies design

Disadvantages: - Limited output current compared to some other voltage converters - Requires external capacitors for operation

Working Principles

The ICL7662CBD operates based on a charge pump voltage conversion technique. It uses an internal oscillator to control the switching of flying capacitors, which generate the negative output voltage from the positive input voltage. The internal circuitry ensures efficient energy transfer and provides protection features such as short-circuit and thermal shutdown.

Detailed Application Field Plans

The ICL7662CBD finds applications in various fields, including:

1. Portable Electronics: Provides a negative voltage source for LCD displays, backlighting, and audio amplifiers.
2. Industrial Control Systems: Used for generating negative supply voltages in control circuits and sensor interfaces.
3. Automotive Electronics: Enables the creation of negative bias voltages for automotive sensors and actuators.
4. Telecommunications: Utilized in communication systems for generating negative supply voltages required by certain components.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the ICL7662CBD include:

1. MAX660CPA: Voltage Converter IC with similar specifications and pin configuration.
2. ICL7660SCPAZ: CMOS Voltage Converter IC with comparable characteristics and package type.
3. LTC1044CN8: Monolithic CMOS Voltage Converter with extended temperature range and higher output current capability.

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

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