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PDF IRS2505LPBF Data sheet ( Hoja de datos )
| Número de pieza | IRS2505LPBF | |
| Descripción | SOT-23 Boost PFC Control IC | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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IRS2505LPBF
µPFCTM
SOT-23 Boost PFC Control IC
Features
Description
• 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
Application Diagram
Rect (+)
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
http://www.DataSheet4U.com/
5 Lead SOT23
DC Bus (+)
VCC (+)
VCC (-)
CMP
1
COM
2
VCC
3
VBUS
5
PFC
4
Rect (-)
Ordering Information
Base Part Number
IRS2505LPBF
Package Type
5L-SOT-23
DC Bus (-)
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable Part Number
IRS2505LTRPBF
1 www.irf.com © 2013 International Rectifier
July 22, 2013
1 page  
IRS2505LPbF
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol
Definition
Min.
Max. Units
VCC Supply voltage
VCCUV+ + 0.5V VCLAMP V
ICC
VCMP
Tj
Supply current
CMP pin voltage
Junction temperature
0 10 mA
0 VZCMP V
-40 125 ºC
Recommended Component Values
Symbol
CCMP
CVCC
CVBUS
Component
Compensation capacitor value
VCC filter capacitor
VBUS pin filter capacitor
http://www.DataSheet4U.com/
Min.
470
100
1.0
Max.
---
---
---
Units
nF
nF
nF
4 www.irf.com © 2013 International Rectifier
July 22, 2013
5 Page 
Part Marking Information: 5 Lead SOT23
Top Marking
IRS2505LPBF
Bottom Marking
http://www.DataSheet4U.com/
The information provided in this document is believed to be accurate and reliable. However, International Rectifier assumes no responsibility
for the consequences of the use of this information. International Rectifier assumes no responsibility for any infringement of patents or of
other rights of third parties which may result from the use of this information. No license is granted by implication or otherwise under any
patent or patent rights of International Rectifier. The specifications mentioned in this document are subject to change without notice. This
document supersedes and replaces all information previously supplied.
For technical support, please contact IR’s Technical Assistance Center
http://www.irf.com/technical-info/
WORLD HEADQUARTERS:
233 Kansas St., El Segundo, California 90245
Tel: (310) 252-7105
10 www.irf.com © 2013 International Rectifier
July 22, 2013
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