Hot Sell Integrated Circuits PFS7523H Chip In Stock

PFS7523-7529/7533-7539
HiperPFS-3 Family
www.power.com June 2015
PFC Controller with Integrated High-Voltage MOSFET and Qspeed
Diode Optimized for High PF and Efficiency Across Load Range

 High efficiency and power factor across load range • >95% efficiency 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 • Enhanced features • 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 amplifier 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 filter 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 simplifies EMI filtering 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

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-profile (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 efficiency over the entire load range
of the converter, particularly at light loads. Additionally, it significantly minimizes the EMI filtering 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 amplifier 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 benefits of continuous conduction mode operation while leveraging low-cost, small, simple EMI filters.
Many regions mandate high power factor for many electronic
products with high power requirements. These rules are combined
with numerous application-specific standards that require high power
supply efficiency across the entire load range, from full load to as low
as 10% load. High efficiency at light load is a challenge for traditional
PFC solutions in which fixed MOSFET switching frequencies cause
fixed switching losses on each cycle, even at light loads. In addition
to featuring relatively flat efficiency across the load range, HiperPFS-3
also enables high power factor of >0.92 at 20% load. HiperPFS-3
simplifies compliance with new and emerging energy-efficiency
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
efficiency 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.