1. INDUSTRY’S SMALLEST PFC BOOST IC
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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.
DATASHEET
Advantages
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 over-voltage 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.
PRESS RELEASE
Features
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
HI-RES GRAPHIC
July 2013