Optimized efficiency, effectivity, and reliability in high-voltage energy provides must be mixed with diminished bill-of-material (BOM) rely and price, in addition to decrease design efforts. With its 5th technology fixed-frequency (FF) CoolSET portfolio, Infineon Applied sciences AG provides the proper parts to fulfill these wants and successfully handle the vital design trade-offs. The brand new 800 V and 950 V AC-DC built-in energy phases (IPS) are housed in a DIP-7 package deal and deal with functions corresponding to auxiliary energy provides for house home equipment, AC-DC converters, battery chargers, photo voltaic vitality programs, and motor management and drives.
The FF CoolSET resolution combines a PWM controller IC with the newest excessive voltage CoolMOS P7 superjunction (SJ) MOSFETs in a single package deal. The prolonged portfolio now contains the primary machine in the marketplace that makes use of an avalanche-rugged SJ MOSFET with a breakdown voltage of 950 V to permit for a wider enter voltage. The brand new gadgets allow each remoted and non-isolated topologies corresponding to flyback or buck and function at switching frequencies of 100 kHz in addition to 65 kHz. Accommodating each the cost-efficient buck topology and flyback in a single single machine simplifies the availability chain for purchasers. An built-in error amplifier helps direct suggestions from the first output, which is typical for non-isolated topologies. Furthermore, this additional minimizes the variety of parts and design complexity.
The frequency discount mode with smooth gate driving and frequency jitter operation provides decrease EMI and enhances the effectivity between mid- and light-weight load situations. The gadgets additionally help steady (CCM) and discontinuous conduction mode (DCM). For low AC line enter situations, CCM operation can obtain decrease conduction losses and, thus, a better effectivity to fulfill worldwide regulatory requirements for vitality effectivity. On the similar time, the built-in MOSFET helps an ultra-wide enter voltage vary generally related to single-phase sensible metering and industrial functions. As well as, the gadgets assist to optimize the snubber circuitry to additional improve the effectivity and decrease the standby energy consumption of the converter.
All new gadgets supply a excessive degree of integration and include a complete suite of safety options with auto-restart to help the ability provide system in failure conditions. These safety options, along with the excessive breakdown voltage of the SJ MOSFET, guarantee an elevated energy provide robustness. On prime of that, the energetic burst mode (ABM) improves the light-load efficiency and allows ultra-low standby energy consumption with small and controllable output voltage ripple.
Extra info is accessible at www.infineon.com/coolset-ff.