Data Sheet No. PD608-C Features Primary current mode control, and secondary voltage mode control Vcc over-voltage protection (latched) Over-current and over-temperature protection Quasi resonant, variable frequency operation pin TO-0 and TO-6 package 0.Ω Rds(on) max/ 00V MOSFET Fully Characterized Avalanche Energy Typical Connection Diagram INTEGRATED SWITCHER Packages IRIS007 Lead TO-0 IRIS007K Lead TO-6 Descriptions The is a dual mode voltage and current controller combined with a MOSFET in a single Package. The are designed for use in AC/DC and DC/DC switching power supplies upto 00VDC nominal input and is capable of 0W for a nominal 8V input. The device can operate in either a quasi-resonant or Pulse Ratio Control (PRC) mode, and thereby variable frequency operation. Vin (AC/ DC) Vout (DC) Drain Vcc FB Source Gnd (Refer to Lead Assignments for correct pin configuration). This/These diagram(s) show electrical connections only. Please refer to our DesignTips and Application Notes (AN08a, AN0a, AN0) for proper circuit board layout. www.irf.com
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 terminals stated, all currents are defined positive into any lead. The thermal resistance and power dissipation ratings are measured under board mounted and still air conditions. Symbol Definition Terminals Max. Ratings Units Note I D peak Peak drain current - 0 Single pulse I D max Maximum switching current -.0 A V- = 0.78V Tc= o C E AS Single pulse avalanche energy - 0 mj Vdd=0V,L=0mH, Tc= o C V CC Power supply voltage - V V TH OCP/FB terminal voltage - 6 P D Power dissipation for MOSFET 7 With infinite heatsink -.7 W Without heatsink P D Power dissipation for control part (MIC) - 0.8 Rth JC Thermal resistance, junction to case.7 C/W T J Junction temperature -0- Specified by V IN x I IN T S Storage temperature -0- T f Internal frame temperature in operation -0- C Refer to recommended operating temperature T OP Ambient operating temperature -0- T L Lead temp. (soldering, 0 seconds) 00 Recommended Operating Conditions Time for input of quasi resonant signals. For the Quasi resonant signal inputted to the V DCP/FB terminal at the time of quasi resonant operation, the signal should be wider thant Tth() V OCP/FB Tth().0µ s Vth() www.irf.com
Electrical Characteristics (for Control IC) V CC = 8V, (T A = C) unless otherwise specified. Symbol Definition Min. Typ. Max. Units Test Conditions V CCUV+ V CC supply undervoltage positive going threshold. 6 7.6 V CCUV- V CC supply undervoltage negative going threshold 9 0 V I QCCUV UVLO mode quiescent current 00 µa V CC < V CCUV+ I QCC Quiescent operating VCC supply current 0 ma T OFF/(MAX) Maximum OFF time 0 60 T TH() Minimum input pulse width for quasi resonant signals.0 µsec T OFF/(MIN) Minimum OFF time. V TH() OCP/FB terminal threshold voltage 0.68 0.7 0.78 V TH() OCP/FB terminal threshold voltage...6 V I OCP/FB OCP/FB terminal sink current...7 ma V CC(OVP) V CC overvoltage protection limit 0... V I CC(LA) Latch circuit holding current 00 µa V CC(LaOFF) Latch circuit reset voltage 6.6 8. V T J(TSD) Thermal shutdown activation temperature 0 o C Electrical Characteristics (for MOSFET) (T A = C) unless otherwise specified. Symbol Definition Min. Typ. Max. Units Test Conditions V DSS Drain-to-source breakdown voltage 00 V I DSS Drain leakage current 0 µa Vds=60V, V CC =0V Tj = o C R DS(ON) On-resistance 0. Ω V - =0V, I D =A tr Rise time (0% to 90%) 00 ns THj-C Thermal resistance.7 o C/W Between junction and case www.irf.com
Block Diagram Vcc START O.V.P LATCH D REG. DRIVE T.S.D OSCILLATOR - + Comp. Vth() S OCP/ FB - + Comp. Vth() Ground Lead Assignments Pin # Symbol Description S MOSFET Source terminal Ground Ground terminal D MOSFET Drain terminal Vcc Control circuit supply voltage Other Functions O.V.P. Overvoltage Protection Circuit T.S.D. Thermal Shutdown Circuit OCP/FB Overcurrent detection, and Voltage mode control feedback signal www.irf.com
Case outline -Lead TO-0 0-600 00 0-0 0 (TS-00) www.irf.com
Case outline.0 [.0] MAX. 0.9 [.0] 9.6 [.80] 6.8 [.90].06 [.60] B. [.0]. [.08] 6.[.] MIN 9.6 [.80] 8.6 [.0] 6 8.00[.] MAX C.70 [.00].7 [.80].70 [.067] X X.0[.00] 0.[.00] 0. [.00] A B X 0.6 [.0] 0. [.0].9 [.].6 [.08] -Lead TO-6 IR WORLD HEADQUARTERS: Kansas Street, El Segundo, California 90 Tel: (0) -70 Data and specifications subject to change without notice. 0/7/00 6 www.irf.com