ICL7660CBAZ-T

The ICL7660CBAZ-T is a highly integrated voltage converter IC manufactured by Intersil, designed for applications requiring a compact and efficient solution for generating negative voltages or voltage doubling. This device is particularly useful in battery-powered systems and portable electronics where space and power efficiency are critical.

Key Features:

1. Voltage Conversion: The ICL7660CBAZ-T can convert a positive input voltage (typically between 1.5V to 12V) into a negative output voltage, effectively allowing for dual-polarity power supplies from a single positive voltage source.

2. Output Voltage: The device can generate a negative output voltage that is approximately equal in magnitude to the input voltage, making it suitable for applications that require a negative supply rail.

3. Current Capability: It can deliver output currents up to 20 mA, which is sufficient for many low-power applications, including operational amplifiers and analog circuits.

4. Efficiency: The ICL7660CBAZ-T features a high efficiency due to its switched-capacitor architecture, which minimizes power loss during operation.

5. Low Quiescent Current: The IC is designed to operate with low quiescent current, making it ideal for battery-operated devices where power conservation is essential.

6. Package Type: The ICL7660CBAZ-T is available in a compact 8-pin SOIC (Small Outline Integrated Circuit) package, which helps save board space and simplifies layout in dense circuit designs.

7. Operating Temperature Range: The device operates over a wide temperature range, typically from -40°C to +85°C, ensuring reliability in various environmental conditions.

8. Protection Features: The IC includes built-in protection features such as thermal shutdown and short-circuit protection, enhancing its robustness and reliability in practical applications.

Applications:

The ICL7660CBAZ-T is commonly used in various applications, including:

• Generating negative voltage supplies for operational amplifiers and analog circuits.
• Powering sensors and other devices that require dual-polarity supplies.
• Voltage doubling applications in battery-powered devices.
• Signal processing circuits where negative voltage is necessary.

Pin Configuration:

The ICL7660CBAZ-T typically features the following pin configuration:

1. V+: Positive supply voltage input.
2. GND: Ground reference.
3. VOUT: Negative output voltage.
4. CAP+: Capacitor connection for charge pump.
5. CAP-: Capacitor connection for charge pump.
6. SW: Switch control for the internal charge pump.
7. NC: No connection (not used).
8. C1: External capacitor connection for voltage conversion.

Conclusion:

The ICL7660CBAZ-T from Intersil is a versatile and efficient voltage converter IC that provides a simple solution for generating negative voltages in compact electronic designs. Its combination of low power consumption, high efficiency, and robust performance makes it a popular choice among engineers and designers in various applications.