ICL7660CBAZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

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

Package: SOIC (Small Outline Integrated Circuit)

Essence: The ICL7660CBAZ-T is a voltage converter IC that generates a negative output voltage from an input voltage. It is commonly used in electronic circuits where a negative voltage source is required.

Packaging/Quantity: The ICL7660CBAZ-T is available in a standard SOIC package and is typically sold in reels containing 250 units.

Specifications

• Input Voltage Range: 1.5V to 10V
• Output Voltage Range: -1.5V to -10V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Rejection Ratio: 70dB
• Switching Frequency: 10kHz

Detailed Pin Configuration

The ICL7660CBAZ-T has eight pins, which are assigned specific functions:

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

Functional Features

• Voltage Conversion: The ICL7660CBAZ-T efficiently converts a positive input voltage into a negative output voltage.
• Low Power Consumption: The IC operates with low power consumption, making it suitable for battery-powered devices.
• Wide Operating Voltage Range: It can accept input voltages ranging from 1.5V to 10V, providing flexibility in various applications.
• Compact Package Size: The SOIC package allows for easy integration into electronic circuits with limited space.
• High Efficiency: The ICL7660CBAZ-T exhibits high conversion efficiency, minimizing power losses.

Advantages and Disadvantages

Advantages: - Efficient voltage conversion - Low power consumption - Wide operating voltage range - Compact package size

Disadvantages: - Limited output current capacity (up to 100mA) - Requires external flying capacitor for operation

Working Principles

The ICL7660CBAZ-T utilizes charge pumps to generate the negative output voltage. It employs an internal oscillator to control the switching of capacitors, which results in the desired voltage conversion. By regulating the frequency of the oscillator, the output voltage can be adjusted within the specified range.

Detailed Application Field Plans

The ICL7660CBAZ-T finds application in various electronic systems, including:

1. Audio Equipment: Provides a negative voltage source for audio amplifiers and preamplifiers.
2. LCD Displays: Used to generate the required negative bias voltage for driving LCD panels.
3. Industrial Control Systems: Enables the creation of negative supply rails for analog signal processing circuits.
4. Portable Devices: Provides a negative voltage reference for operational amplifiers and other components in battery-powered devices.

Detailed and Complete Alternative Models

1. MAX660CPA+: Similar voltage converter IC with a DIP package and higher output current capability.
2. LTC1044CN8: Voltage converter IC with improved supply voltage rejection ratio and extended temperature range.
3. ICL7660SCBAZ-T: Surface-mount version of the ICL7660CBAZ-T with enhanced ESD protection.

These alternative models offer similar functionality to the ICL7660CBAZ-T and can be considered as substitutes based on specific application requirements.

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