IRS2505LPBF µPFCTM SOT-23 Boost PFC Control IC Features • • • • • • • • • • • • • 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. 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 • • • Package Options Off-line power supply Electronic ballast LED power supply 5 Lead SOT23 Application Diagram DC Bus (+) Rect (+) CMP COM 2 VCC 3 VCC (+) VBUS IRS2505 1 5 PFC 4 VCC (-) Rect (-) DC Bus (-) Ordering Information Base Part Number Package Type IRS2505LPBF 5L-SOT-23 1 www.irf.com © 2013 International Rectifier Standard Pack Form Quantity Tape and Reel 3000 Orderable Part Number IRS2505LTRPBF July 22, 2013 IRS2505LPBF Timing Diagram PFC VCC VPFCOFF VPFCZX- t ILPFC t VDRAIN DC BUS t OFF-TIME 1 www.irf.com © 2013 International Rectifier ON-TIME July 22, 2013 IRS2505LPBF Qualification Information† †† Qualification Level Moisture Sensitivity Level Machine Model ESD Human Body Model IC Latch-Up Test RoHS Compliant Industrial (per JEDEC JESD 47E) Comments: This family of ICs has passed JEDEC’s Industrial qualification. IR’s Consumer qualification level is granted by extension of the higher Industrial level. ††† MSL1 SOT-23 (per IPC/JEDEC J-STD-020C) Class B (per JEDEC standard EIA/JESD22-A115-A) Class 2 (per EIA/JEDEC standard JESD22-A114-B) Class I, Level A (per JESD78A) Yes † †† Qualification standards can be found at International Rectifier’s web site http://www.irf.com/ Higher qualification ratings may be available should the user have such requirements. Please contact your International Rectifier sales representative for further information. ††† Higher MSL ratings may be available for the specific package types listed here. Please contact your International Rectifier sales representative for further information. 2 www.irf.com © 2013 International Rectifier July 22, 2013 IRS2505LPbF Absolute Maximum Ratings Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters are absolute voltages referenced to COM, all currents are defined positive into any pin. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. Symbol VPFC VBUS ICC ICMP PD RΘja Tj Ts TL Definition PFC pin voltage VBUS pin voltage † VCC pin supply current †† CMP pin current Package power dissipation @ Ta ≤ SOT-23 5L +25 ºC Thermal resistance, junction to SOT-23 ambient 5L Junction temperature Storage temperature Lead temperature (soldering, 10 seconds) Min. -0.3 -0.3 Max. VCC + 0.3 VCC + 0.3 Units ----- 25 1 mA --- 250 mW --- 191 ºC/W -55 -55 --- 150 150 300 ºC V † This IC contains a voltage clamp structure between the chip VCC and COM which has a nominal breakdown voltage of 20.8V. This supply pin should not be driven by a DC, low impedance power source greater than the VCLAMP specified in the Electrical Characteristics section. This IC contains a voltage clamp structure between the CMP and COM which has a †† nominal breakdown voltage of 10.2V. This pin should not be driven by a DC, low impedance power source greater than the VZCMP specified in the Electrical Characteristics section. 3 www.irf.com © 2013 International Rectifier July 22, 2013 IRS2505LPbF Recommended Operating Conditions For proper operation the device should be used within the recommended conditions. Symbol VCC Definition Supply voltage ICC VCMP Supply current CMP pin voltage Tj Junction temperature Min. Max. Units VCCUV+ + 0.5V VCLAMP V 0 0 10 VZCMP mA V -40 125 ºC Recommended Component Values Symbol CCMP CVCC Component Compensation capacitor value VCC filter capacitor CVBUS VBUS pin filter capacitor 4 www.irf.com © 2013 International Rectifier Min. 470 100 Max. ----- Units nF nF 1.0 --- nF July 22, 2013 IRS2505LPBF Electrical Characteristics VCC=14V, CVCC=0.1uF, CCMP=0.68uF, CPFC=1nF, CVBUS=10nF, and Ta=25°C unless otherwise specified. Symbol Definition Min Typ Max Units Test Conditions Supply Characteristics VCLAMP VCC clamp voltage 19.8 20.8 21.8 VCCUV+ Rising VCC under-voltage lock-out threshold 10.0 11.1 12.0 VCCUV- Falling VCC under-voltage lock-out threshold 7.0 7.9 9.0 VCC UVLO hysteresis --- 3.2 --- Micro-power start-up VCC supply current --- --- 60.0 µA VCC = VCCUV+ - 500mV rising VCC current @ 50kHz --- 2.5 --- mA MOSFET = IRF840A 4.02 4.1 4.18 VCCUVHYS IQCCUV ICC50kHz ICC = 19 mA V N/A PFC Characteristics VBUSREG VBUS Pin Regulation Voltage VBUSOV+ VBUS Pin OVP Threshold VBUS Pin OVP Fault Reset Threshold VBUS Pin Over-Current Threshold --- 4.47 --- --- 4.26 --- --- 0.56 --- tWD Watch Dog Timer Pulse Interval --- 125 --- ICMP+ CMP Pin OTA IO+ --- 30 --- ICMP- --- -30 --- 9.9 10.2 11.5 VCMPOL CMP Pin OTA IOOTA Output Voltage Swing (high state) OTA Output Voltage Swing (low state) --- 0 --- VCMPFLT OTA Output Voltage in Fault Mode --- 0 --- CMP Pin Clamp Voltage 9.9 10.2 11.5 VBUSOVVBUSOC+ VCMPOH VZCMP V VBUS = 3V µA VBUS=3.5V,VCMP=0V VBUS=4.5V,VCMP=5V VBUS=3.5V V VBUS=4.5V VBUS=3.5V Gate Driver Output Characteristics (PFC) VPFCON Gate High Voltage --- VCC --- VPFCOFF Gate Low Voltage --- 0.59 --- Output fall time --- 20 --- nsec Output sink current --- 450 --- mA tf IO- 5 www.irf.com © 2013 International Rectifier V Falling, 80% to 20% July 22, 2013 IRS2505LPBF Pin Assignments and Definitions VBUS CMP COM 2 VCC 3 5 IRS2505 1 PFC 4 Pin Name 1 CMP PFC error amplifier compensation 2 COM IC power and signal ground 3 VCC Logic and gate drive supply voltage 4 PFC PFC gate driver output and zero-crossing detection 5 VBUS 6 www.irf.com Description DC bus sensing input, OVP and OCP © 2013 International Rectifier July 22, 2013 IRS2505LPBF Package Details: 5 Lead SOT23 7 www.irf.com © 2013 International Rectifier July 22, 2013 IRS2505LPBF Tape and Reel Details: 5 Lead SOT23 8 www.irf.com © 2013 International Rectifier July 22, 2013 IRS2505LPBF Tape and Reel Details: 5 Lead SOT23 9 www.irf.com © 2013 International Rectifier July 22, 2013 IRS2505LPBF Part Marking Information: 5 Lead SOT23 Top Marking Bottom Marking 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