ICL7660SIPA

Product Overview

Category

ICL7660SIPA belongs to the category of integrated circuits (ICs).

Use

The ICL7660SIPA is commonly used as a voltage converter or voltage regulator in electronic circuits.

Characteristics

• Voltage conversion: The ICL7660SIPA can convert input voltages ranging from 1.5V to 10V into negative output voltages.
• Efficiency: It offers high efficiency in voltage conversion, making it suitable for low-power applications.
• Package: The ICL7660SIPA comes in a SIP (Single In-line Package) format.
• Essence: This IC is designed to provide reliable and stable voltage conversion in various electronic devices.
• Packaging/Quantity: The ICL7660SIPA is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Maximum Output Current: 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage: ±1.5V to ±10V
• Package Type: SIP

Detailed Pin Configuration

The ICL7660SIPA has eight pins, each serving a specific function:

1. GND: Ground pin
2. V+ (Pin 1): Positive supply voltage input
3. V- (Pin 2): Negative supply voltage input
4. OSC (Pin 3): Oscillator frequency control pin
5. CAP+ (Pin 4): Positive terminal of the flying capacitor
6. CAP- (Pin 5): Negative terminal of the flying capacitor
7. VOUT (Pin 6): Negative output voltage
8. VIN (Pin 7): Positive input voltage

Functional Features

• Voltage Conversion: The ICL7660SIPA efficiently converts positive input voltages into negative output voltages.
• Oscillator Frequency Control: The oscillator frequency can be adjusted using an external capacitor connected to the OSC pin.
• Low Power Consumption: This IC consumes minimal power during operation, making it suitable for battery-powered devices.
• Overload Protection: The ICL7660SIPA incorporates built-in overload protection to prevent damage due to excessive current or voltage.

Advantages and Disadvantages

Advantages

• Compact Size: The SIP package allows for a compact design, saving space in electronic circuits.
• High Efficiency: The ICL7660SIPA offers high efficiency in voltage conversion, reducing power wastage.
• Wide Input Voltage Range: It can accept a wide range of input voltages, providing flexibility in various applications.

Disadvantages

• Limited Output Current: The maximum output current of 100mA may not be sufficient for high-power applications.
• Single Output: The ICL7660SIPA provides a single negative output voltage, limiting its use in certain circuit designs.

Working Principles

The ICL7660SIPA operates based on charge-pump voltage conversion. It uses an internal oscillator to generate a square wave that drives the charge pump circuitry. The charge pump alternately charges and discharges a flying capacitor, resulting in the desired negative output voltage.

Detailed Application Field Plans

The ICL7660SIPA finds applications in various electronic systems, including:

1. Portable Devices: It is used to generate negative supply voltages required by LCD displays, audio amplifiers, and other components in portable devices.
2. Industrial Automation: The IC is utilized in industrial automation systems to provide negative voltage rails for analog sensors and control circuits.
3. Automotive Electronics: It finds application in automotive electronics for generating negative bias voltages required by sensors, actuators, and control modules.
4. Telecommunications: The ICL7660SIPA is used in telecommunications equipment to generate negative supply voltages for audio amplifiers, signal conditioning circuits, and more.

Detailed and Complete Alternative Models

1. MAX660CPA: This IC offers similar voltage conversion capabilities and comes in a DIP (Dual In-line Package) format.
2. LTC1044CN8: It provides voltage conversion with higher output current capability and is available in an 8-pin DIP package.
3. ICL7660CBAZ-T: This alternative model features improved temperature range and comes in a smaller SOT-23 package.

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

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