ICL7663SAIBA

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Converter

Characteristics: - Low power consumption - High efficiency - Wide input voltage range - Small package size - Easy to use

Package: SOIC (Small Outline Integrated Circuit)

Essence: The ICL7663SAIBA is a voltage converter IC that provides regulated positive and negative voltages from a single input voltage source.

Packaging/Quantity: The ICL7663SAIBA is available in a standard SOIC package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 1.5V to 16V
• Output Voltage Range: -1.5V to -16V
• Output Current: Up to 100mA
• Operating Temperature Range: -40°C to +85°C
• Supply Voltage Rejection Ratio: 80dB
• Quiescent Current: 120µA

Pin Configuration

The ICL7663SAIBA has a total of 8 pins, which are labeled as follows:

1. V+ (Positive Supply Voltage)
2. GND (Ground)
3. V- (Negative Supply Voltage)
4. SW (Switching Node)
5. FB (Feedback)
6. COMP (Compensation)
7. OSC (Oscillator)
8. CT (Timing Capacitor)

Functional Features

• Single-ended or split supply operation
• Internal oscillator with frequency adjustable by an external capacitor
• Soft-start feature for controlled startup
• Overcurrent protection
• Thermal shutdown protection

Advantages

• Provides regulated positive and negative voltages from a single input source
• Low power consumption extends battery life
• High efficiency minimizes power loss
• Wide input voltage range allows for versatile applications
• Small package size saves board space
• Easy to use with simple pin configuration

Disadvantages

• Limited output current capacity (up to 100mA)
• Requires an external timing capacitor for oscillator frequency adjustment

Working Principles

The ICL7663SAIBA is based on a charge pump voltage converter topology. It utilizes an internal oscillator to generate a square wave signal, which is then used to drive the charge pump circuitry. The charge pump converts the input voltage into a higher or lower voltage level as required, providing regulated positive and negative voltages at the output.

Detailed Application Field Plans

The ICL7663SAIBA finds application in various fields, including but not limited to: 1. Portable electronic devices: Provides dual power supply for audio amplifiers, LCD displays, and other components. 2. Industrial automation: Used in control systems requiring both positive and negative supply voltages. 3. Automotive electronics: Enables voltage conversion for automotive sensors, actuators, and lighting systems. 4. Telecommunications: Utilized in communication equipment for generating dual power supplies.

Detailed and Complete Alternative Models

1. MAX660CPA: Voltage Converter IC with similar specifications and pin configuration.
2. LTC1044CN8: Charge Pump Voltage Converter IC with adjustable oscillator frequency.
3. ICL7660SCBAZ-T: Inverting Voltage Converter IC with integrated oscillator and shutdown feature.

These alternative models offer similar functionality and can be considered as substitutes for the ICL7663SAIBA in different applications.

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