Microchip TC4469EPD Quad CMOS Power Driver: Features and Applications
The Microchip TC4469EPD is a highly integrated quad CMOS power driver designed to deliver robust performance in a wide range of digital and power control applications. As a member of Microchip’s extensive power driver family, this device excels in driving highly capacitive loads—such as MOSFETs, IGBTs, motors, and solenoids—with high speed, low power consumption, and superior noise immunity.
One of the standout features of the TC4469EPD is its four independent gate drivers integrated into a single 14-pin PDIP package. Each channel can source and sink up to 1.5A of peak output current, enabling fast switching of power semiconductors and reducing transition losses. The device operates across a wide supply voltage range from 4.5V to 18V, making it suitable for both 5V and higher voltage systems. Additionally, it incorporates CMOS input stages that are compatible with TTL and CMOS logic levels, providing flexibility in interfacing with microcontrollers, DSPs, or FPGA outputs.
The TC4469EPD also offers built-in protection features including undervoltage lockout (UVLO), which ensures that the outputs remain disabled when the supply voltage is below a safe threshold, preventing malfunction in power-starved conditions. Its cross-conduction protection circuitry minimizes the risk of shoot-through currents in half-bridge or full-bridge configurations.
Thanks to these characteristics, the TC4469EPD is widely used in applications such as:
- Motor drive systems for robotics and industrial automation
- Switch-mode power supplies (SMPS) and DC-DC converters
- Pulse transformers and solenoid drivers
- MOSFET/IGBT gate drive circuits in inverters and motor controllers
- Automotive and industrial control systems where reliability under harsh conditions is essential
The Microchip TC4469EPD stands out as a versatile and reliable quad power driver, offering high current capability, broad compatibility, and integrated protection in a compact package. It is an excellent choice for designers seeking to improve switching performance and system integrity in power electronic applications.
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Keywords:
CMOS Power Driver, Gate Drive Circuit, High-Current Output, Undervoltage Lockout, Motor Control
