TI UC3611DW

This quad diode array is designed for general-purpose use, functioning either as individual diodes or as a high-speed, high-current rectifier bridge. It is particularly suited for use at the output of high-speed power MOSFET drivers, where Schottky diode clamping is required to suppress any negative excursions caused by ringing on the driven line. These diodes are also well suited as voltage clamps for driving inductive loads such as relays and solenoids, and provide freewheeling paths for current in motor drive applications. Schottky diode technology is employed to achieve high efficiency through reduced forward voltage drop and shorter reverse recovery time. The monolithic chip is available in hermetic CERDIP packages and copper-lead plastic packages. The ceramic-packaged UC1611 is rated for -55°C to 125°C environments but with lower peak current capability, while the plastic-packaged UC3611 offers higher current ratings over an ambient temperature range of 0°C to 70°C.

• Matched quad diode monolithic array
• High peak current
• Low-cost MINIDIP package
• Low forward voltage
• Parallelable for lower forward voltage or higher forward current
• Fast recovery time

• High-speed power MOSFET driver output clamping
• Inductive load voltage clamping for relays, solenoids, etc.
• Freewheeling diode for motor drive applications
• PWM and driver clamp diodes
• Transformer-coupled drive circuits
• Linear voltage regulation