ICL7667EPA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL7667EPA+ is a voltage converter and regulator IC that provides a regulated positive or negative output voltage from an input voltage. It is commonly used in electronic circuits where precise voltage regulation is required.

Characteristics: - Input Voltage Range: ±1.5V to ±16V - Output Voltage Range: ±1.5V to ±16V - Output Current: Up to 100mA - Operating Temperature Range: -40°C to +85°C

Package: The ICL7667EPA+ is available in an 8-pin PDIP (Plastic Dual In-line Package) with a small footprint, making it suitable for space-constrained applications.

Essence: This IC is designed to provide stable and accurate voltage regulation in various electronic devices and systems.

Packaging/Quantity: The ICL7667EPA+ is typically sold in reels or tubes, containing a quantity of 50 units per package.

Specifications

• Supply Voltage: ±1.5V to ±16V
• Output Voltage Range: ±1.5V to ±16V
• Output Current: Up to 100mA
• Quiescent Current: 200µA (typical)
• Line Regulation: 0.01%/V (typical)
• Load Regulation: 0.05%/mA (typical)
• Ripple Rejection Ratio: 70dB (typical)
• Shutdown Current: 0.1µA (typical)

Pin Configuration

The ICL7667EPA+ features the following pin configuration:

___________ V+ --| |-- V- IN --| |-- OUT GND--| |-- SHDN |___________|

• V+: Positive supply voltage input
• V-: Negative supply voltage input
• IN: Input voltage
• OUT: Output voltage
• GND: Ground reference
• SHDN: Shutdown control input

Functional Features

1. Voltage Conversion: The ICL7667EPA+ can convert an input voltage to a regulated positive or negative output voltage, providing flexibility in various applications.
2. Precise Regulation: It offers accurate voltage regulation with low quiescent current and excellent line and load regulation characteristics.
3. Shutdown Control: The SHDN pin allows for easy on/off control of the IC, reducing power consumption when not in use.
4. Wide Operating Range: The IC operates over a wide range of input and output voltages, making it suitable for diverse electronic systems.

Advantages and Disadvantages

Advantages: - High precision voltage regulation - Low quiescent current - Compact package size - Wide operating temperature range - Shutdown control feature for power saving

Disadvantages: - Limited output current capacity (up to 100mA) - Not suitable for high-power applications

Working Principles

The ICL7667EPA+ utilizes internal circuitry to regulate the output voltage based on the input voltage and external components connected to the IC. It employs feedback mechanisms to maintain a stable output voltage despite variations in the input voltage or load conditions. The IC also incorporates protection features such as thermal shutdown and short-circuit protection to ensure safe operation.

Detailed Application Field Plans

The ICL7667EPA+ finds application in various fields, including:

1. Battery-Powered Devices: It can be used to regulate the voltage in portable electronic devices, ensuring consistent performance even as the battery voltage decreases.
2. Industrial Automation: The IC is suitable for controlling voltage levels in industrial automation systems, providing stable power supply to sensitive components.
3. Automotive Electronics: It can be employed in automotive applications to regulate voltage for sensors, actuators, and other electronic modules.
4. Audio Systems: The IC can be utilized in audio amplifiers and preamplifiers to maintain a steady output voltage, resulting in improved audio quality.

Detailed and Complete Alternative Models

1. ICL7667CPA: Similar to ICL7667EPA+, but available in a 14-pin PDIP package.
2. MAX660CPA: A voltage converter and regulator IC with similar functionality, available in an 8-pin PDIP package.
3. LT1054CP: Another voltage converter and regulator IC, offering higher output current capability, available in an 8-pin PDIP package.

These alternative models provide similar voltage conversion and regulation capabilities, catering to different application requirements.

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