The ICL7660AIBAZ-T is a monolithic CMOS voltage converter from Intersil Corporation. This device is designed to convert a positive input voltage to a corresponding negative output voltage. It's a versatile component used in various applications requiring voltage inversion.

Applications

• Portable equipment: Provides a negative voltage supply in battery-powered devices.
• Operational amplifiers: Generates the negative supply voltage required for op-amp circuits.
• Data acquisition systems: Used in systems where both positive and negative supply voltages are required.
• LCD bias: Supplies the necessary negative voltage for LCD displays.
• Memory circuits: Provides a negative voltage for certain memory applications.

Features

• Wide input voltage range: Operates with a wide range of input voltages.
• High voltage conversion efficiency: Provides efficient voltage conversion with minimal power loss.
• Low quiescent current: Minimizes power consumption in standby mode.
• No external components required: Requires only a few external capacitors for operation.
• CMOS technology: Provides high performance and low power consumption.
• Operating Temperature Range: Industrial temperature range for reliable operation in harsh environments.

Benefits

• Simplified power supply design: Eliminates the need for complex and bulky power supplies.
• Reduced component count: Requires only a few external components, saving board space.
• Extended battery life: Low quiescent current minimizes power consumption in portable devices.
• Improved system performance: Provides a stable and reliable negative voltage supply.
• Cost-effective solution: Offers a low-cost solution for voltage inversion.

Additional Details

The ICL7660AIBAZ-T uses a charge pump architecture to invert the input voltage. The device contains an oscillator, a voltage doubler, and a voltage regulator. The oscillator generates a clock signal that drives the charge pump. The charge pump transfers charge from the input capacitor to the output capacitor, creating a negative voltage. The voltage regulator stabilizes the output voltage and provides overcurrent protection. The device is available in an SOIC package. The conversion efficiency is typically around 98%. The operating temperature range is typically -40°C to +85°C. This makes it suitable for industrial applications where temperature variations can be significant. The device is also commonly used in instrumentation and control systems where precise and stable voltage supplies are required.