ICL7660SIPAZ

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Converts input voltage to a negative output voltage - Low power consumption - High efficiency - Wide operating voltage range - Compact package size

Package: SIP (Single In-line Package)

Essence: The ICL7660SIPAZ is a voltage converter IC that generates a negative output voltage from a positive input voltage. It is commonly used in electronic circuits where a negative voltage is required, such as in audio amplifiers, LCD displays, and sensor applications.

Packaging/Quantity: The ICL7660SIPAZ is available in a standard SIP package. Each package contains one IC.

Specifications

• Input Voltage Range: 1.5V to 12V
• Output Voltage Range: -1.5V to -12V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Rejection Ratio: 80dB
• Switching Frequency: 10kHz

Detailed Pin Configuration

The ICL7660SIPAZ has eight pins arranged as follows:

```

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| | --| Vout (-) |-- --| GND |-- --| Vin (+) |-- --| C1 |-- --| C2 |-- --| OSC |-- --| Vout (+) |-- |___________| ```

1. Vout (-): Negative output voltage pin
2. GND: Ground reference pin
3. Vin (+): Positive input voltage pin
4. C1: Capacitor connection pin for voltage conversion
5. C2: Capacitor connection pin for voltage conversion
6. OSC: Oscillator frequency control pin
7. Vout (+): Positive output voltage pin

Functional Features

• Voltage conversion from positive to negative
• Low power consumption for energy-efficient operation
• High efficiency for minimal power loss
• Wide operating voltage range allows flexibility in various applications
• Compact package size for space-constrained designs

Advantages and Disadvantages

Advantages: - Provides a negative output voltage without the need for additional components - Low power consumption extends battery life in portable devices - High efficiency reduces heat dissipation and improves overall system performance - Wide operating voltage range accommodates different input voltage levels - Compact package size saves board space and simplifies integration

Disadvantages: - Limited output current capacity may not be suitable for high-power applications - Requires external capacitors for proper voltage conversion - Sensitivity to input voltage fluctuations may affect output stability

Working Principles

The ICL7660SIPAZ utilizes charge pumps to convert the input voltage into a negative output voltage. It employs an internal oscillator to generate a square wave signal, which drives the charge pump circuitry. The charge pump alternately charges and discharges two capacitors (C1 and C2) to create a negative voltage at the output. This negative voltage is then regulated and made available at the Vout (-) pin.

Detailed Application Field Plans

The ICL7660SIPAZ finds application in various electronic systems that require a negative voltage source. Some common application areas include:

1. Audio Amplifiers: Used to provide a negative bias voltage for audio amplification circuits.
2. LCD Displays: Utilized to generate the required negative voltage for driving LCD panels.
3. Sensor Applications: Employed to power sensors that operate with a negative supply voltage.

Detailed and Complete Alternative Models

1. MAX660CPA: Similar voltage converter IC with comparable specifications and pin configuration.
2. ICL7660CBAZ: Another variant of the ICL7660 series with slightly different characteristics but compatible pinout.
3. LTC1044CN8: Voltage converter IC offering enhanced features and higher output current capability.

These alternative models can be considered based on specific requirements and availability in the market.

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