IRS2505LPBF_15 Datasheet, PDF (1/11 Pages) International Rectifier – SOT-23 Boost PFC Control IC

HVIC^TM
Features
 Critical-conduction mode PFC control
 ^{High PF and ultra-low THD}
 ^{Wide load and line range}
 ^{Regulated and programmable DC bus voltage}
 ^{No secondary winding required}
 ^{MOSFET cycle-by-cycle over-current protection}
 ^{DC bus over-voltage protection}
 ^{Low EMI gate drive}
 ^{Ultra-low start-up current}
 ^{20.8V internal zener clamp on VCC}
 Excellent ESD and latch immunity
 RoHS compliant
 5-pin SOT-23 package
Applications
 Off-line power supply
 Electronic ballast
 LED power supply
IRS2505LPBF
SOT-23 Boost PFC Control IC
Description
The IRS2505 is a control IC for boost-type
PFC circuits operating in critical-conduction
mode. The IC incorporates a free-running
frequency oscillator with on- and off-time control
of the boost power MOSFET without the need for
a secondary winding. Also included in the design
is over-voltage protection of the DC bus and
cycle-by-cycle over-current protection of the
power MOSFET. Micro-power start-up current and
an internal 20.8V zener clamp at VCC are
provided to simplify the external VCC supply
circuitry. ESD and latch immune CMOS
technology enables a rugged monolithic IC
construction.
Package Options
Application Diagram
Rect (+)
VCC (+)
VCC (-)
CMP
1
COM
2
VCC
3
VBUS
5
PFC
4
5 Lead SOT23
DC Bus (+)
Rect (-)
Ordering Information
Base Part Number
Package Type
IRS2505LPBF
5L-SOT-23
DC Bus (-)
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable Part Number
IRS2505LTRPBF
1 www.irf.com © 2015 International Rectifier
January 15, 2015