ICL7667CBA: Dual Power MOSFET Driver IC Comprehensive Guide

The ICL7667CBA is a high-performance dual power MOSFET driver integrated circuit (IC) developed by Intersil, a leader in semiconductor technology. Although marked as obsolete, this IC remains a popular choice for engineers and hobbyists due to its robust design and versatility in driving N-Channel MOSFETs. This guide delves deep into its features, applications, and advantages to help you understand why the ICL7667CBA is still relevant in modern power electronics.

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Detailed Overview of the ICL7667CBA

The ICL7667CBA falls under the category of Integrated Circuits (ICs) and specifically within the PMIC - Gate Drivers subcategory. It is engineered to drive two N-Channel MOSFETs independently, making it ideal for applications requiring high-speed switching and efficient power management. Despite its obsolete status, the ICL7667CBA is widely used in legacy systems and niche applications where modern alternatives may not be suitable.

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Key Features and Technical Specifications

1. Dual-Channel Design

• The ICL7667CBA features two independent driver channels, enabling simultaneous control of two N-Channel MOSFETs. This dual-channel architecture is perfect for applications like H-bridge motor drivers and synchronous buck converters.

2. Wide Supply Voltage Range

• Operating voltage ranges from 4.5V to 17V, accommodating both low-voltage and high-voltage systems with ease.

3. High-Speed Switching

• With typical rise and fall times of 20ns, the ICL7667CBA ensures minimal switching losses, enhancing efficiency in high-frequency applications.

4. Logic-Level Input Compatibility

• Supports input logic levels of 0.8V (VIL) and 2V (VIH), making it compatible with most microcontrollers and digital signal processors.

5. Inverting Input Configuration

• The inverting input simplifies circuit design for applications requiring complementary gate signals, such as push-pull converters.

6. Robust Thermal Performance

• Designed to operate in temperatures ranging from 0 C to 150 C (TJ), ensuring reliability in harsh industrial and automotive environments.

7. Compact Packaging

• Housed in an 8-SOIC package (3.90mm width), the ICL7667CBA is optimized for space-constrained PCB designs.

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Applications of the ICL7667CBA

The ICL7667CBA is widely used in the following applications: - Motor Control Systems: Ideal for driving MOSFETs in H-bridge configurations for precise DC motor control. - Switching Power Supplies: Enhances efficiency in buck, boost, and flyback converters. - LED Lighting: Drives high-power LEDs in commercial and industrial lighting systems. - Industrial Automation: Powers PLCs and other automation equipment requiring reliable MOSFET driving. - Renewable Energy Systems: Used in solar inverters and battery management systems for efficient power conversion.

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Advantages of Using the ICL7667CBA

Despite being obsolete, the ICL7667CBA offers several benefits: - Proven Performance: Extensive field testing ensures reliability in diverse applications. - Cost-Effective: A budget-friendly alternative to modern gate drivers for legacy designs. - Easy Integration: Simple pinout and standard SOIC package facilitate quick PCB layout. - Wide Availability: Surplus stock and secondary markets provide access to this IC for ongoing projects.

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Conclusion

The ICL7667CBA is a versatile and reliable dual power MOSFET driver IC that continues to serve engineers in power electronics. Its high-speed switching, wide voltage range, and robust design make it a preferred choice for motor control, power supplies, and LED driving applications. While newer alternatives exist, the ICL7667CBA remains a valuable component for those seeking a proven and cost-effective solution.

For those interested in purchasing the ICL7667CBA, our platform offers competitive pricing and fast shipping. Contact us today to check availability and place your order!

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Note: Due to the obsolete status of the ICL7667CBA, stock levels may fluctuate. Confirm availability before finalizing your design.