ICL7663AESA+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Low-power, monolithic CMOS voltage converter - Converts a positive input voltage to the corresponding negative output voltage - Suitable for use in battery-powered systems and portable devices

Package: SOIC-8

Essence: The ICL7663AESA+ is a voltage converter IC that allows conversion of a positive input voltage to a corresponding negative output voltage.

Packaging/Quantity: The ICL7663AESA+ is available in a standard SOIC-8 package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Output Current: Up to 40mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: ±1.5V to ±10V
• Quiescent Current: 120µA (typical)
• Shutdown Current: 0.01µA (typical)

Detailed Pin Configuration

The ICL7663AESA+ has a total of 8 pins arranged as follows:

```

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| | --| V+ GND |-- Pin 1: Positive Power Supply (V+) --| VIN VOUT|-- Pin 2: Input Voltage (VIN) / Output Voltage (VOUT) --| SHDN FB |-- Pin 3: Shutdown Control (SHDN) / Feedback (FB) --| GND V- |-- Pin 4: Ground (GND) / Negative Output Voltage (V-) |___________| ```

Functional Features

• Low-power CMOS technology ensures efficient operation and minimal power consumption.
• Wide input voltage range allows compatibility with various power sources.
• Shutdown control feature enables power-saving mode when not in use.
• Built-in feedback mechanism ensures stable output voltage regulation.

Advantages

• Compact and lightweight design, suitable for portable devices and battery-powered systems.
• Efficient voltage conversion with low power consumption.
• Wide input voltage range provides flexibility in different applications.
• Shutdown control feature helps conserve power when the IC is not in use.
• Reliable performance and stable output voltage regulation.

Disadvantages

• Limited output current capacity (up to 40mA), may not be suitable for high-power applications.
• Requires external components for proper operation, which adds complexity to the circuit design.
• Not suitable for applications requiring positive-to-positive or negative-to-negative voltage conversion.

Working Principles

The ICL7663AESA+ utilizes a charge pump voltage converter architecture to generate a negative output voltage from a positive input voltage. It employs a combination of switches, capacitors, and control logic to achieve the desired voltage conversion. When the input voltage is applied, the charge pump circuitry alternately charges and discharges capacitors to create a negative voltage at the output. The feedback mechanism ensures that the output voltage remains within the specified range.

Detailed Application Field Plans

The ICL7663AESA+ finds application in various fields, including but not limited to: 1. Battery-powered devices: Provides a negative voltage supply for powering LCD displays, sensors, and other components. 2. Portable audio equipment: Enables the generation of a negative bias voltage for audio amplifiers and signal processing circuits. 3. Industrial control systems: Used in control panels and instrumentation to provide negative voltage rails for analog circuitry. 4. Automotive electronics: Supports negative voltage requirements in automotive systems such as infotainment systems and lighting controls. 5. Medical devices: Used in medical equipment that requires a negative voltage source, such as patient monitoring systems and diagnostic devices.

Detailed and Complete Alternative Models

1. ICL7660CBAZ: Similar to the ICL7663AESA+, but with a different package (DIP-8) and slightly different specifications.
2. MAX660CPA+: Voltage converter IC with similar functionality, available in a DIP-8 package.
3. LTC1044CN8: Monolithic CMOS voltage converter IC with comparable features, offered in an 8-pin PDIP package.
4. TPS60403DBVR: Step-up/down voltage converter IC suitable for positive-to-negative and negative-to-positive voltage conversion, available in a SOT-23 package.

These alternative models provide similar voltage conversion capabilities and can be considered as substitutes for the ICL7663AESA+ based on specific application requirements.

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