INTERSIL ICL7667CPA Dual MOSFET Driver IC, 8-Pin DIP

The INTERSIL ICL7667CPA is a dual, monolithic, high-speed MOSFET driver IC designed to efficiently convert TTL-level logic signals into high-current outputs. It is engineered for applications requiring rapid switching, with the capability to handle supply voltages of up to 17V and drive large capacitive loads with minimal delay. The high-speed performance minimises power dissipation in power MOSFETs by ensuring rapid charging and discharging of the gate capacitance, which is critical for maintaining efficiency in switched-mode power supplies and other high-frequency circuits.

A key feature of this driver is its TTL and CMOS-compatible inputs, which allow for direct interfacing with common pulse-width modulation (PWM) control integrated circuits without the need for additional signal conditioning. This simplifies system design and improves reliability. The output voltage swing is exceptionally close to the supply rail, losing only millivolts, which ensures the driven MOSFETs are fully enhanced or depleted for optimal performance.

Performance Specifications

With a typical output resistance of 7Ω, the device delivers high peak currents necessary for fast switching. It offers impressive rise and fall times of just 30 nanoseconds when driving a 1000pF load, alongside low propagation delays. The dual-channel configuration provides flexibility for driving multiple MOSFETs in push-pull or complementary setups, making it a versatile component for power electronics design.

Applications

This MOSFET driver is well-suited for a wide range of demanding electronic applications. Its combination of speed, drive capability, and compatibility makes it an ideal choice for power converter designs, instrumentation, and portable electronics where efficiency and compactness are paramount.