Download industry`s smallest pfc boost ic

INDUSTRY’S SMALLEST PFC BOOST IC
The IRS2505LTRPbF is the industry’s
smallest power factor correction (PFC)
boost IC in a 5-pin SOT23 package for
switch mode power supply (SMPS),
LED drivers, fluorescent and HID
electronic ballast applications.
Advantages
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Features
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Critical-conduction mode PFC control
High PF and ultra-low THD
Wide input voltage and load range
Regulated DC bus output voltage
Programmable DC bus voltage level
DC bus over-voltage protection
Programmable MOSFET over-current
protection
Inductor current zero-crossing detection
Micro-power start-up current
20.8V internal Zener clamp on VCC
Excellent latch immunity on all inputs and
outputs
Integrated ESD protection on all pins
Small SOT-23 5L package
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The IRS2505L extends IR’s µPFC™ PFC
control IC family and features a novel control
system that can implement a PFC controller
with only five pins, significantly reducing
overall system size, component count and
system cost. The IRS2505L may be
configured to operate in critical conduction
boost PFC, buck or flyback configuration.
The IRS2505L offers wide input voltage and
load range, regulated DC bus output voltage
and programmable DC bus voltage level.
Protection features include DC bus overvoltage protection, programmable MOSFET
over-current protection and integrated ESD
protection on all pins.
Micro-power start-up current, 20.8V internal
Zener clamp on VCC and latch immunity on all
inputs and outputs are also features.
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July 2013