POWER INTEGRATIONS PFS7525H

The HiperPFS™-3 devices incorporate a continuous conduction mode (CCM) boost PFC controller, gate driver, ultra-low reverse recovery (Qspeed™) diode and high-voltage power MOSFET in a single, low-profle (GROUND pin connected) power package. HiperPFS-3 devices eliminate the PFC converter’s need for external current sense resistors and the associated power loss, and use an innovative control technique that adjusts the switching frequency over output load, input line voltage, and even input line cycle. This control technique maximizes effciency over the entire load range of the converter, particularly at light loads. Additionally, it signifcantly minimizes the EMI fltering requirements due to its wide bandwidth spread spectrum effect. The HiperPFS-3 uses advanced digital techniques for line monitoring functions, line feed-forward scaling, and power factor enhancement, while using analog techniques for the core controller in order to maintain extremely low no-load power consumption. The HiperPFS-3 also features an integrated non-linear error amplifer for enhanced load transient response, a user programmable Power Good (PG) signal as well as user selectable power limit functionality. HiperPFS-3 includes Power Integrations’ standard set of comprehensive protection features, such as integrated UV, OV, brown-in/out, and hysteretic thermal shutdown. HiperPFS-3 also provides cycle-by-cycle current limit and Safe Operating Area (SOA) protection of the power MOSFET, power limiting of the output for overload protection, and pin-to-pin short-circuit protection. HiperPFS-3’s innovative variable frequency continuous conduction mode operation (VF-CCM) minimizes switching losses by maintaining a low average switching frequency, while modulating the switching frequency in order to suppress EMI, the traditional challenge with continuous conduction mode solutions. Systems using HiperPFS-3 typically reduce the total X and Y capacitance requirements of the converter, the inductance of both the boost choke and EMI noise suppression chokes, thereby reducing overall system size and cost. Additionally, HiperPFS-3 devices dramatically reduce component count and board footprint while simplifying system design and enhancing reliability, when compared with designs that use discrete MOSFETs and controllers. The innovative variable frequency, continuous conduction mode controller enables the HiperPFS-3 to realize all of the benefts of continuous conduction mode operation while leveraging low-cost, small, simple EMI flters. Many regions mandate high power factor for many electronic products with high power requirements. These rules are combined with numerous application-specifc standards that require high power supply effciency across the entire load range, from full load to as low as 10% load. High effciency at light load is a challenge for traditional PFC solutions in which fxed MOSFET switching frequencies cause fxed switching losses on each cycle, even at light loads. In addition to featuring relatively fat effciency across the load range, HiperPFS-3 also enables high power factor of >0.92 at 20% load. HiperPFS-3 simplifes compliance with new and emerging energy-effciency standards over a broad market space in applications such as PCs, LCD TVs, notebooks, appliances, pumps, motors, fans, printers and LED lighting. HiperPFS-3’s advanced power packaging technology and high effciency simplify the complexity of mounting the IC and thermal management, while providing very high power capabilities in a single compact package; these devices are suitable for PFC applications from 75 W to 900 W.

• High effciency and power factor across load range

• 95% effciency from 10% load to full load

• <60 mW no-load consumption at 230 VAC
• PF >0.92 easily achievable at 20% load
• EN61000-3-2 Class C and D compliant
• Highly integrated for smallest boost PFC form factor
• Integrated controller, MOSFET and ultra-low reverse recovery loss diode (Qspeed)
• Packaging optimized for high volume production
• Eliminates insulating pad/heat-spreader
• Programmable Power Good (PG) signal
• User selectable power limit: Enables different HiperPFS-3 family members to be tested in the same design for optimum device selection
• Integrated non-linear amplifer for fast output OV and UV protection and transient response
• Digital line peak detection that provides robust performance even with distorted input voltage from UPS or generators
• Digital power factor enhancer compensates for EMI flter and bridge distortion, providing high-line PF >0.92 @ 20% load
• Frequency adjusted over line voltage and each line cycle
• Spread-spectrum across >60 kHz window simplifes EMI fltering requirements
• Lower boost inductance
• Provides up to 450 W peak output power for universal applications, 1 kW for high-line only applications
• Protection features include: UVLO, UV, OV, OTP, brown-in/out, cycle-by-cycle current limit and power limiting for overload protection
• Halogen free and RoHS compliant
• Incorporates high-voltage power MOSFET, ultra-low reverse recovery loss Qspeed diode, controller and gate driver.
• Integrated protection features reduce external component count.
• Accurate built-in brown-in/out prot

• PC
• High-power adaptors
• Printer
• High-power LED lighting
• LCD TV
• Industrial and appliance
• Video game consoles
• Generic PFC converters
• 80 Plus Platinum designs