Infineon Offered Integrated Power Stages for 800V and 950V AC-DC
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Update time : 2022-09-26 16:36:40
Infineon Technologies AG (FF) AG has launched the fifth generation fixed frequency (FF) CoolSET™ portfolio designed to provide the right key components to optimize the design. Infineon's new 800V and 950V AC-DC integrated power stages (IPS) are available in DIP-7 packages to meet the needs of applications such as auxiliary power supplies for home appliances, AC-DC converters, battery chargers, solar systems, and motor control and drives.
The fixed-frequency CoolSETTM solution integrates a PWM controller IC and the latest high-voltage CoolMOS™ P7 superjunction (SJ) MOSFETs in a single package. The expanded portfolio includes the market's first power semiconductor device to integrate a 950V superjunction MOSFET with avalanche breakdown capability, supporting a wider input voltage range. The new device supports both isolated and non-isolated topologies including Flyback and Buck, and can operate at switching frequencies of 100 kHz and 65 kHz. Supporting both low-system-cost Buck and general-purpose Flyback with a single device simplifies the customer's supply chain; The integrated error amplifier supports primary-side feedback, a typical feature of non-isolated topologies that further reduces the number of devices and the complexity of the design. A frequency reduction mode with integrated soft drive and jitter frequency mitigates electromagnetic interference and improves efficiency at medium and light loads. Continuous On Mode (CCM) and Discontinuous On-Mode (DCM) are supported, and under low-voltage input conditions, CCM can reduce conduction losses to improve efficiency and meet international energy efficiency standards. The integrated MOSFETs support ultra-wide input voltage ranges such as those associated with single-phase smart meters and industrial applications. In addition, the product also helps to optimize the design of the buffer circuit, further improving efficiency and reducing standby power consumption. All new products integrate a wide range of self-restoring protection functions to support the power supply system in the event of a fault with an automatic restart function. Improved protection features combined with the high breakdown voltage of the superjunction MOSFET further improve the stability of the power supply. In addition, Active Burst Mode (ABM) improves light-load performance and achieves ultra-low standby power dissipation, with small, controllable output voltage ripple.
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