ir11662s International Rectifier Corp., ir11662s Datasheet
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... Package Options Rdc XFM U1 1 VCC VGATE 2 OVT GND 3 MOT VS RMOT IR11662S IR11671 Datasheet No - PD97468 March 23, 2010 IR11662S TM CONTROL IC Flyback, Resonant Half-bridge 200V 10.7V Clamped (typical) +1A & -4A o- 60ns (typical) 50ns (typical) 8-Lead SOIC Cdc © 2010 International Rectifier ...
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... Electrical Characteristics Functional Block Diagram Input/Output Pin Equivalent Circuit Diagram Lead Definitions Lead Assignments Application Information and Additional Details Package Details Tape and Reel Details Part Marking Information Ordering Information www.irf.com © 2010 International Rectifier 2 IR11662S Page ...
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... MOSFETs. Ruggedness and noise immunity are accomplished using an advanced blanking scheme and double-pulse suppression which allow reliable operation in all operating modes. www.irf.com © 2010 International Rectifier 3 IR11662S ...
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... Industrial qualification. IR’s Consumer qualification level is granted by extension of the higher Industrial level. ††† MSL2 260°C (per IPC/JEDEC J-STD-020) Class B (per JEDEC standard JESD22-A115) Class 1C (1500V) (per EIA/JEDEC standard EIA/JESD22-A114) Class I, Level A (per JESD78) Yes http://www.irf.com/ 4 IR11662S †† © 2010 International Rectifier ...
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... -0.3 20 GATE T -40 150 J T -55 150 S R 128 JA P 970 D fsw 500 Definition Component 5 IR11662S Units Remarks =20V, Gate off CC °C °C °C/W SOIC-8 mW SOIC-8, T =25°C AMB kHz Min. Max. Units 11.4 18 † 200 -3 -25 125 ° ...
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... CM Symbol Min. Typ. Max BLANK 2.5 V TH3 5 HYST3 Symbol Min. Typ. Max. 180 240 300 T Onmin 2.25 3 3.75 6 IR11662S and I ) parameters O O Units Remarks V GBD 1nF 400kHz mA LOAD 10nF 400kHz mA LOAD SW mA µ 0. µA ...
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... Don Doff 1.2 down 1 O source sink 7 IR11662S and I ) parameters O O Units Remarks 200mA GATE V V =12V-18V (internally clamped 1nF, V =12V LOAD 10nF, V =12V LOAD 1nF, V =12V ...
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... Functional Block Diagram VCC EN VCC VD VTH1 VS OVT VTH3 www.irf.com MOT Cycle by Cycle MOT Check Circuit Min ON Time RESET Min OFF Time RESET VTH1 VTH2 8 IR11662S VCC UVLO & REGULATOR VGATE DRIVER GND Vgate V VTH3 DS © 2010 International Rectifier ...
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... I/O Pin Equivalent Circuit Diagram VD ESD Diode 200V Diode GND www.irf.com R ESD 9 IR11662S © 2010 International Rectifier ...
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... GND 8 VGATE Lead Assignments www.irf.com Description Supply Voltage Offset Voltage Trimming Minimum On Time Enable FET Drain Sensing FET Source Sensing Ground Gate Drive Output 1 VCC VGATE 2 OVT GND MOT IR11662S © 2010 International Rectifier ...
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... FETs in parallel. Care must be taken in order to keep the gate loop as short and as small as possible in order to achieve optimal switching performance. www.irf.com MOSFETs. Dson is crossed for the first time, TH2 The internal devices and gate driver are © 2010 International Rectifier 11 IR11662S . TH1 ...
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... Protection Mode, so that the IC can automatically resume normal operation once the load increases to a level and the secondary current conduction time is longer than MOT. www.irf.com . The UVLO mode is accessible from any other state of operation CC START occurs. CC UVLO exceeds V to activate the gate. This ensures that the GATE output is not TH3 12 IR11662S © 2010 International Rectifier ...
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... This will happen differently depending on the mode of TH1 may trigger once again the turn on threshold: for this reason after V has been triggered. BLANK TH1 crosses the positive threshold IR11662S TH3 . TH2 voltage to jump negative. Depending on DS also the blanking time TH3 © ...
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... The turn off speed is critical to avoid cross conduction on the primary side and reduce switching losses. Also in this case a blanking period will be applied, but given the very fast nature of this transition, it will be reset as soon as V crosses V DS www.irf.com TH3 14 IR11662S time time time time on the SR FET. DS TH1 © 2010 International Rectifier ...
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... The operation waveforms of IR11662 in a flyback converter under CCM mode and DCM/CrCM were shown in Figure 5 and Figure 6 respectively. I SEC TH1 V TH2 Gate Drive Blanking www.irf.com T2 T2 MOT Figure 5: Secondary side CCM operation 15 IR11662S time time V TH3 time time time © 2010 International Rectifier ...
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... T2 MOT 10us blanking Rcc1 CVCC1 1 VCC GATE 2 OVT GND 3 MOT Rmot1 T1 IR11662 Rcc2 CVCC2 1 VCC GATE 2 OVT 3 MOT 4 EN Rmot2 IR11662 16 IR11662S V TH3 time time M3 Rg1 GND Rg2 M4 © 2010 International Rectifier VOUT Cout ...
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... The IC disables the gate output in the protection mode and automatically resume to normal operation as the load increasing to a level where the SR current conduction time is longer than MOT. This function works in both flyback and resonant half-bridge topologies. Figure example in Flyback converter. www.irf.com Figure 9: MOT Protection Mode 17 IR11662S © 2010 International Rectifier ...
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... This function works in both flyback and resonant half-bridge topologies. Figure example in resonant half-bridge converter. Figure 10: Synchronized Enable Function (resonant half-bridge) General Timing Waveform VCC UVLO TH2 90% 50% 10% www.irf.com NORMAL Figure 11: Vcc UVLO V TH1 t Don V Gate t rise Figure 12: Timing waveform 18 IR11662S VCC ON VCC UVLO t UVLO t Doff t fall © 2010 International Rectifier ...
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... -50 °C Figure 14: Undervoltage Lockout vs. 8.5 8.0 7.5 -50 °C 100 °C 150 °C Figure 16: Icc Supply Currrent @1nF Load vs. 19 IR11662S VCC ON VCC UVLO 0 °C 50 °C 100 °C 150 °C Temperature Temperature Icc @400KHz, C =1nF LOAD 0 °C 50 °C 100 °C 150 ° ...
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... OVT=GND OVT=Floating OVT=VCC -150.0 -50 °C 100 °C 150 °C Figure 18: V -6.0 -9.0 -12.0 -15.0 100 °C 150 °C -50 °C Figure 20 IR11662S 0 °C 50 °C 100 °C 150 °C Temperature vs. Temperature TH2 VS=-150mV VS=0V VS=+2V 0 °C 50 °C 100 °C 150 °C Temperature vs. Temperature at Common TH1 Mode (OVT=Floating) ...
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... VEN VEN 100 °C 150 °C -50 °C Figure 24: Turn-on and Turn-off Propagation 21 IR11662S RMOT=5k RMOT=75k 0 °C 50 °C 100 °C 150 °C Temperature Turn-on Propagation Delay Turn-off Propagation Delay 0 °C 50 °C 100 °C 150 °C Temperature Delay vs ...
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... Package Details: SOIC8N www.irf.com © 2010 International Rectifier 22 IR11662S ...
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... Metric Imperial Min Max Min 329.60 330.25 12.976 20.95 21.45 0.824 12.80 13.20 0.503 1.95 2.45 0.767 98.00 102.00 3.858 n/a 18.40 n/a 14.50 17.10 0.570 12.40 14.40 0.488 23 IR11662S Max 0.318 0.161 0.484 0.218 0.255 0.208 n/a 0.062 A Max 13.001 0.844 0.519 0.096 4.015 0.724 0.673 0.566 © 2010 International Rectifier ...
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... Part Marking Information www.irf.com © 2010 International Rectifier 24 IR11662S ...
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... For technical support, please contact IR’s Technical Assistance Center www.irf.com Standard Pack Form Tube/Bulk SOIC8N Tape and Reel http://www.irf.com/technical-info/ WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 25 IR11662S Complete Part Number Quantity 95 IR11662SPBF 2500 IR11662STRPBF © 2010 International Rectifier ...