International Rectifier has expanded its family of SmartRectifier ICs with the introduction of the IR1168 for AC-DC power converters for high-end applications.
The 200 V dual smart secondary-side rectifier driver IC is designed to drive two n-channel power MOSFETs used as synchronous rectifiers (SR) in resonant half-bridge topologies. In contrast to traditional current transformer SR methods, the IR1168 accurately determines turn-on and turn-off based on MOSFET drain sensing voltage in close proximity to zero current transition, eliminating the need for additional components and simplifying design.
While synchronous rectification provides significant energy savings compared to diode-based designs, traditional SR methods are complex and require a high component count. Using only two gate resistors and a supply capacitor, the IR1168 delivers a low system temperature and high-power density for high-efficiency and reliability.
The IR1168 supports burst mode operation to deliver efficiency benefits even at light loads. Ruggedness and noise immunity are accomplished using an advanced blanking scheme and double-pulse suppression that allows reliable operation in fixed and variable frequency applications. Other key features include maximum 500 kHz switching frequency, anti-bounce logic and UVLO protection, 4 A peak turn-off gate drive current, low-power startup and low quiescent current, 10,7 V gate drive clamp, 70 ns turn-off propagation delay and a wide VCC operating range from 8,6 V to 18 V.
Cutting-edge solutions for Africa’s clean energy future
Power Electronics / Power Management
As Africa pushes towards reliable, affordable, and sustainable energy, Sungrow is driving transformation with cutting-edge innovations that enhance grid stability, reduce energy costs, and expand access to clean power.
Read more...PhotoMOS relays Future Electronics
Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.
Read more...Reliable power solution Conical Technologies
Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.
Read more...Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.
Read more...Wide input voltage buck-boost converter Altron Arrow
Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.
Read more...MEMS air quality sensor Future Electronics
Test & Measurement
Bosch Sensortec’s BME690 is the latest-generation gas sensor that combines advanced monitoring capabilities with innovative artificial intelligence functionality.
Read more...Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.
Read more...High-voltage IGBT Hi-Q Electronics
Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.
printer friendly version