ICL7667EBA

Product Overview

Category: Integrated Circuit (IC)

Use: The ICL7667EBA 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 a stable voltage level is required.

Characteristics: - Voltage conversion and regulation - High efficiency - Low power consumption - Wide input voltage range - Adjustable output voltage - Overcurrent protection

Package: The ICL7667EBA is available in a standard 8-pin plastic dual in-line package (PDIP).

Essence: The essence of the ICL7667EBA is to convert and regulate voltages efficiently, ensuring a stable output voltage for various electronic applications.

Packaging/Quantity: The ICL7667EBA is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Input Voltage Range: 2V to 18V
• Output Voltage Range: -1.5V to +16.5V
• Output Current: Up to 100mA
• Quiescent Current: 120µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ICL7667EBA features the following pin configuration:

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| | --| V+ GND |-- Pin 1: Positive Supply Voltage (V+) --| VIN VOUT|-- Pin 2: Input Voltage (VIN) / Output Voltage (VOUT) --| FB NC |-- Pin 3: Feedback Terminal (FB) / No Connection (NC) --| EN NC |-- Pin 4: Enable Terminal (EN) / No Connection (NC) --| GND V- |-- Pin 5: Ground (GND) / Negative Supply Voltage (V-) --| NC NC |-- Pin 6: No Connection (NC) --| NC NC |-- Pin 7: No Connection (NC) --| NC VOUT |-- Pin 8: No Connection (NC) / Output Voltage (VOUT) |___________| ```

Functional Features

1. Voltage Conversion: The ICL7667EBA can convert an input voltage to a regulated positive or negative output voltage.
2. Adjustable Output: The output voltage can be adjusted using external resistors connected to the feedback terminal (FB).
3. Overcurrent Protection: The IC incorporates overcurrent protection, preventing damage to the circuit in case of excessive current flow.
4. Low Power Consumption: The ICL7667EBA operates with low quiescent current, minimizing power consumption.

Advantages and Disadvantages

Advantages: - Efficient voltage conversion and regulation - Wide input voltage range - Adjustable output voltage - Overcurrent protection ensures circuit safety - Low power consumption

Disadvantages: - Limited output current capacity (up to 100mA) - Requires external components for precise voltage adjustment

Working Principles

The ICL7667EBA utilizes internal circuitry to convert and regulate voltages. It employs a feedback mechanism to maintain a stable output voltage regardless of variations in the input voltage. By adjusting the feedback resistor values, the desired output voltage can be set within the specified range.

Detailed Application Field Plans

The ICL7667EBA finds applications in various electronic systems where voltage conversion and regulation are crucial. Some potential application fields include:

1. Battery-Powered Devices: Used to provide stable voltage levels for portable electronic devices such as smartphones, tablets, and wearable gadgets.
2. Industrial Automation: Employed in control systems, sensors, and actuators to ensure consistent voltage supply.
3. Automotive Electronics: Used in automotive circuits for voltage regulation, enabling reliable operation of various components.
4. Telecommunications: Utilized in communication devices, routers, and network equipment to maintain stable voltage levels.

Detailed and Complete Alternative Models

1. ICL7667CBA: Similar to ICL7667EBA, but with a different package (ceramic dual in-line package).
2. MAX660CPA: Voltage converter and regulator IC with similar functionality and pin configuration.
3. LM2662M/NOPB: Another voltage converter IC offering adjustable output voltage and low power consumption.

These alternative models provide similar features and can be considered as substitutes for the ICL7667EBA depending on specific requirements.

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