ON Semiconductor FAN73895MX Three-Phase Half-Bridge Gate Driver IC

The FAN73895MX from ON Semiconductor is a sophisticated three-phase half-bridge gate driver integrated circuit designed to drive N-channel IGBTs or power MOSFETs. It is a versatile component that can be used in a variety of applications, including motor drives, uninterruptible power supplies (UPS), and other power conversion systems that require high-efficiency and reliable switching.

Featuring a high-voltage process design, the FAN73895MX can handle up to 600V, making it suitable for high-power applications. The device provides three high-side and three low-side gate drive outputs, each capable of driving the gate of a power transistor with high speed and efficiency. The high-side drivers are implemented with ON Semiconductor's high-voltage level-shift technology, ensuring reliable operation even under extreme conditions.

The FAN73895MX offers multiple protective features to enhance system reliability. It includes under-voltage lockout (UVLO) for both the high-side and low-side channels, preventing the device from operating at insufficient gate voltages. Additionally, the integrated desaturation detection circuitry protects the IGBTs from over-current conditions, and the fault status is reported via a dedicated fault signal output.

For ease of use, the FAN73895MX comes in a compact 48-pin LQFP package, providing a space-saving solution for PCB designs. Its input logic is compatible with standard CMOS or LSTTL outputs, allowing for straightforward interfacing with microcontrollers or other control circuits. The IC also features matched propagation delays between channels, which is critical for maintaining the timing integrity of the switching waveforms and reducing dead-time errors.

With its robust construction and comprehensive feature set, the FAN73895MX is an excellent choice for engineers looking for a reliable and efficient gate driver solution. ON Semiconductor's commitment to quality ensures that the FAN73895MX meets the stringent requirements of high-performance power conversion systems.

For detailed specifications, application notes, and additional resources, designers are encouraged to consult the official datasheets and support documentation provided by ON Semiconductor.