FSDM0465RS Green Mode Fairchild Power Switch (FPS™) Features Description ! Internal Avalanche Rugged SenseFET The FSDM0465RS is an integrated Pulse-Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components. The device is an integrated, high-voltage, powerswitching regulator that combines an avalanche rugged SenseFET with a current mode PWM control block. The PWM controller includes integrated fixed-frequency oscillator, under-voltage lockout, leading-edge blanking (LEB), optimized gate driver, internal soft-start, temperature-compensated precise-current sources for a loop compensation and self-protection circuitry. Compared with a discrete MOSFET and PWM controller solution, it reduces total cost, component count, size and weight; while increasing efficiency, productivity and system reliability. This device is a basic platform well suited for cost effective designs of flyback converters. ! Advanced Burst-Mode Operation Consumes under 1W at 240VAC and 0.5W Load ! Precision Fixed Operating Frequency: 66kHz ! Internal Startup Circuit ! Improved Pulse-by-Pulse Current Limiting ! Over-Voltage Protection (OVP) ! Overload Protection (OLP) ! Internal Thermal Shutdown Function (TSD) ! Abnormal Over-Current Protection (AOCP) ! Auto-Restart Mode ! Under-Voltage Lock Out (UVLO) with Hysteresis ! Low Operating Current: 2.5mA ! Built-in Soft-Start Applications ! SMPS for LCD Monitor and STB ! Adaptor Ordering Information Product Number Package FSDM0465RSWDTU(1) TO-220F-6L(Forming) Eco Status RoHS Marking Code BVDSS RDS(ON) Max. DM0465RS 650V 2.6Ω Note: 1. WDTU: Forming Type. For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. FPSTM is a trademark of Fairchild Semiconductor Corporation. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) April 2009 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Typical Circuit AC IN DC OUT Vstr Drain PWM Vfb Vcc Source FSDM0465RS Rev: 00 Figure 1. Typical Flyback Application Output Power Table Maximum Output Power(2) Product 230VAC ±15%(3) Adapter(4) FSDM0465RS Open 48W 85–265VAC Frame(5) 56W Adapter(4) Open Frame(5) 40W 48W Notes: 2. The junction temperature can limit the maximum output power. 3. 230VAC or 100/115VAC with doubler. 4. Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature. 5. Maximum practical continuous power in an open-frame design at 50°C ambient. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 2 VCC Vstr 6 3 N.C. 5 Drain 1 Istart 0.5/0.7V + Vref 8V/12V VCC Idelay VCC good Internal Bias Vref IFB FB 4 Soft start 2.5R OSC PWM S Q R Q R Gate driver LEB VSD VCC 2 GND Vovp TSD VCC good S Q R Q VCL FSDM0465RS Rev: 00 Figure 2. Functional Block Diagram © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 3 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Internal Block Diagram TO-220F-6L 6. Vstr 5. N.C. 4. Vfb 3. VCC 2. GND 1. Drain Figure 3. Pin Configuration (Top View) Pin Definitions Pin # Name 1 Drain SenseFET drain. High-voltage power SenseFET drain connection. 2 GND Ground. This pin is the control ground and the SenseFET source. 3 VCC Power Supply. This pin is the positive supply input, providing internal operating current for both startup and steady-state operation. 4 Vfb Feedback. This pin is internally connected to the inverting input of the PWM comparator. The collector of an opto-coupler is typically tied to this pin. For stable operation, a capacitor should be placed between this pin and GND. If the voltage of this pin reaches 6V, the overload protection triggers, which shuts down the FPS. 5 N.C. No Connection. Vstr Startup. This pin is connected directly, or through a resistor, to the high-voltage DC link. At startup, the internal high-voltage current source supplies internal bias and charges the external capacitor connected to the VCC pin. Once VCC reaches 12V, the internal current source is disabled. It is not recommended to connect Vstr and Drain together. 6 Description © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 4 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Pin Configuration Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. TA = 25°C, unless otherwise specified. Symbol BVDSS Parameter Value Unit Drain Source Breakdown Voltage 650 V VSTR VSTR Maximum Voltage 650 V IDM Drain Current Pulsed(6) TC=25°C 9.6 ADC TC=25°C 2.2 ARMS ID Continuous Drain Current(7) 1.4 ARMS EAS Single Pulsed Avalanche Energy(8) TC=100°C 120 mJ VCC Supply Voltage 20 V VFB Input Voltage Range -0.3 to 12 V PD(Watt H/S) Total Power Dissipation (Tc=25°C) 45 W TJ Operating Junction Temperature Internally limited °C TA Operating Ambient Temperature -25 to +85 °C Storage Temperature -55 to +150 °C 2.0 (GND-VSTR/VFB=1.5kV) kV 1.0 kV TSTG ESD ESD Capability, Human Body Model, JESD22-A114 (All pins excepts for VSTR and VFB) ESD Capability, Charged Device Model, JESD22-C101 Notes: 6. Repetitive rating: pulse width limited by maximum junction temperature. 7. This value is RMS current rating which should not be confused by the switching current. 8. L=14mH, starting TJ=25°C. Thermal Impedance TA=25°C, unless otherwise specified. Symbol θJA(9) θJC(10) Parameter Junction-to-Ambient Thermal Junction-to-Case Thermal Value Unit 50 °C/W 2.78 °C/W Notes: 9. Free standing with no heat-sink under natural convection. 10. Infinite cooling condition - Refer to the SEMI G30-88. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 5 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Absolute Maximum Ratings TA = 25°C unless otherwise specified. Symbol Parameter Condition Min. Typ. Max. Unit SenseFET SECTION VDS = 650V, VGS = 0V 250 µA Zero Gate Voltage Drain Current VDS = 520V, VGS = 0V, TC = 125°C 250 µA Static Drain Source on Resistance(11) VGS = 10V, ID = 2.5A 2.2 2.6 Ω COSS Output Capacitance VGS = 0V, VDS = 25V, f = 1MHz 60 td(on) Turn-On Delay Time IDSS RDS(ON) tr td(off) tf pF 23 Rise Time 20 VDD = 325V, ID = 5A Turn-Off Delay Time ns 65 Fall Time 27 CONTROL SECTION fOSC ΔfSTABLE ΔfOSC IFB Switching Frequency Switching Frequency Stability Switching Frequency Feedback Source Current DMAX Maximum Duty Cycle DMIN Minimum Duty Cycle VSTART VSTOP tS/S Variation(12) UVLO Threshold Voltage Internal Soft-Start Time VFB = 3V 60 66 72 kHz 13V ≤ VCC ≤ 18V 0 1 3 % -25°C ≤ TA ≤ 85°C VFB = GND 0 ±5 ±10 % 0.7 0.9 1.1 mA 77 82 87 % 0 % VFB = GND 11 12 13 V VFB = GND 7 8 9 V VFB = 3V 10 15 ms VCC = 14V 0.7 V VCC = 14V 0.5 V BURST MODE SECTION VBURH VBURL Burst Mode Voltages PROTECTION SECTION VSD IDELAY tLEB Shutdown Feedback Voltage VFB ≥ 5.5V 5.5 Shutdown Delay Current VFB = 5V 2.8 Leading Edge Blanking Time(12) Limit(13) ILIMIT Peak Current VOVP Over-Voltage Protection TSD Thermal Shutdown 6.0 6.5 V 3.5 4.2 µA 250 VFB = 5V, VCC = 14V Temperature(12) ns 1.6 1.8 2.0 A 18 19 20 V +130 +145 +160 °C 1.0 1.3 mA 2.5 5.0 mA TOTAL DEVICE SECTION ISTART Operating Supply Current(14) IOP IOP(MIN) VFB = GND, VCC = 11V VFB = GND, VCC = 14V Operating Supply Current IOP(MAX) (14) VFB = GND, VCC = 10V VFB = GND, VCC = 18V Notes: 11. Pulse test: Pulse width ≤ 300µS, duty ≤ 2%. 12. These parameters, although guaranteed at the design, are not tested in mass production. 13. These parameters indicate the inductor current. 14. This parameter is the current flowing into the control IC. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 6 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Electrical Characteristics Function FS6M07652RTC FSDM0465RS FSDM0465RS Advantages ! Gradually increasing current limit during Soft-Start soft-start further reduces peak current and Adjustable soft-start Internal soft-start with voltage component stresses time using an external typically 10ms (fixed) ! Eliminates external components used for capacitor soft-start in most applications ! Reduces or eliminates output overshoot ! Built into controller ! Built into controller ! Improve light-load efficiency Burst Mode Operation ! Output voltage ! Output voltage fixed ! Reduces no-load consumption drops to around half © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 7 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Comparison Between FS6M07652RTC and FSDM0465RS 1.2 1.2 1.0 1.0 Start Thershold Voltage (Vstart) Operating Current (Iop) Graphs are normalized at TA= 25°C. 0.8 0.6 0.4 0.2 0.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 -25 0 Junction Temperature [°C] 75 100 125 150 Figure 5. Start Threshold Voltage vs. Temperature 1.2 1.2 1.0 1.0 Operating Frequency (Fosc) Stop Threshold Voltage (Vstop) 50 Junction Temperature [°C] Figure 4. Operating Current vs. Temperature 0.8 0.6 0.4 0.2 0.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 -25 0 Junction Temperature [°C] 25 50 75 100 125 150 Junction Temperature [°C] Figure 6. Stop Threshold Voltage vs. Temperature Figure 7. Operating Frequency vs. Temperature 1.2 1.2 1.0 1.0 FB Source Current (Ifb) Maximum Duty Cycle (Dmax) 25 0.8 0.6 0.4 0.2 0.8 0.6 0.4 0.2 0.0 0.0 -25 0 25 50 75 100 125 150 -25 Junction Temperature [°C] 25 50 75 100 125 150 Junction Temperature [°C] Figure 8. Maximum Duty vs. Temperature Figure 9. Feedback Source Current vs. Temperature © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 0 www.fairchildsemi.com 8 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics 1.2 1.2 1.0 1.0 Shutdown Delay Current (Idelay) Shutdown FB Voltage (Vsd) Graphs are normalized at TA= 25°C. 0.8 0.6 0.4 0.2 0.0 0.8 0.6 0.4 0.2 0.0 -25 0 25 50 75 100 125 150 -25 0 25 Junction Temperature [°C] Figure 10. Shutdown Feedback Voltage vs. Temperature 100 125 150 1.2 FB Burst Mode Enable Voltage (Vfbe) Over Voltage Protection (Vovp) 75 Figure 11. Shutdown Delay Current vs. Temperature 1.2 1.0 0.8 0.6 0.4 0.2 1.0 0.8 0.6 0.4 0.2 0.0 0.0 -25 0 25 50 75 100 125 -25 150 0 25 50 75 100 125 150 Junction Temperature [°C] Junction Temperature [°C] Figure 12. Over-Voltage Protection vs. Temperature Figure 13. Burst Mode Enable Voltage vs. Temperature 1.2 1.2 1.0 1.0 Peak Current Limit (Self protection) (Iover) FB Burst Mode Disable Voltage (Vfbd) 50 Junction Temperature [°C] 0.8 0.6 0.4 0.2 0.8 0.6 0.4 0.2 0.0 0.0 -25 0 25 50 75 100 125 150 -50 Junction Temperature [°C] 0 25 50 75 100 125 Junction Temperature [°C] Figure 14. Burst Mode Disable Voltage vs. Temperature Figure 15. Current Limit vs. Temperature © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 -25 www.fairchildsemi.com 9 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics (Continued) FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Typical Performance Characteristics (Continued) Graphs are normalized at TA= 25°C. Soft Start Time (Normalized to 25°C) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 -50 -25 0 25 50 75 100 125 Junction Temperature [°C] Figure 16. Soft-Start Time vs. Temperature . © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 10 1. Startup: In previous generations of Fairchild Power Switches (FPS™) the VCC pin had an external startup resistor to the DC input voltage line. In this generation the startup resistor is replaced by an internal highvoltage current source. At startup, an internal highvoltage current source supplies the internal bias and charges the external capacitor (Cvcc) that is connected to the VCC pin shown in Figure 17. When VCC reaches 12V, the FSDM0465RS begins switching and the internal high-voltage current source is disabled. The FSDM0465RS continues its normal switching operation and the power is supplied from the auxiliary transformer winding unless VCC goes below the stop voltage of 8V. 6 D2 + Vfb* KA431 2.5R Gate driver R - VSD OLP Rsense FSDM0465RS Rev: 00 Figure 18. Pulse Width Modulation (PWM) Circuit 2.1 Pulse-by-Pulse Current Limit: Because current mode control is employed, the peak current through the SenseFET is limited by the inverting input of PWM comparator (VFB*) as shown in Figure 18. Assuming that the 0.9mA current source flows only through the internal resistor (2.5R + R = 2.8kΩ), the cathode voltage of diode D2 is about 2.5V. Since D1 is blocked when the feedback voltage (VFB) exceeds 2.5V, the maximum voltage of the cathode of D2 is clamped at this voltage, thus clamping VFB*. Therefore, the peak value of the current through the SenseFET is limited. Vstr Vref VCC good 2.2 Leading-Edge Blanking (LEB): At the instant the internal SenseFET is turned on, there usually exists a high-current spike through the SenseFET, caused by primary-side capacitance and secondary-side rectifier reverse recovery. Excessive voltage across the RSENSE resistor would lead to incorrect feedback operation in the current mode PWM control. To counter this effect, the FSDM0465RS employs a leading edge blanking (LEB) circuit. This circuit inhibits the PWM comparator for a short time (tLEB) after the SenseFET is turned on. Internal Bias FSDM0465RS Rev: 00 Figure 17. Internal Startup Circuit 2. Feedback Control: FSDM0465RS employs current mode control, as shown in Figure 18. An opto-coupler (such as the H11A817A) and shunt regulator (such as the KA431) are typically used to implement the feedback network. Comparing the feedback voltage with the voltage across the RSENSE resistor plus an offset voltage makes it possible to control the switching duty cycle. When the reference pin voltage of the KA431 exceeds the internal reference voltage of 2.5V, the H11A817A LED current increases, thus pulling down the feedback voltage and reducing the duty cycle. This event typically happens when the input voltage is increased or the output load is decreased. 3. Protection Circuit: The FSDM0465RS has several self protective functions such as overload protection (OLP), over-voltage protection (OVP) and thermal shutdown (TSD). Because these protection circuits are fully integrated into the IC without external components, the reliability is improved without increasing cost. Once the fault condition occurs, switching is terminated and the SenseFET remains off. This causes VCC to fall. When VCC reaches the UVLO stop voltage, 8V, the protection is reset and the internal high-voltage current source charges the VCC capacitor via the Vstr pin. When VCC reaches the UVLO start voltage, 12V, the FSDM0465RS resumes its normal operation. In this manner, the auto-restart can alternately enable and © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 SenseFET OSC D1 CB Istart 8V/12V IFB 4 H11A817A CVcc 3 Vfb VO VDC VCC Vref VCC Idelay www.fairchildsemi.com 11 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Functional Description FSDM04565RS Rev: 00 VFB Overload protection Vds Power on Fault occurs Fault removed 6.0V 2.5V T12= Cfb*(6.0-2.5)/Idelay Vcc T1 12V T2 t Figure 20. Overload Protection 8V 3.2 Over-Voltage Protection (OVP): If the secondary side feedback circuit were to malfunction or a solder defect caused an open in the feedback path, the current through the opto-coupler transistor becomes almost zero. Then, VFB climbs up in a similar manner to the overload situation, forcing the preset maximum current to be supplied to the SMPS until the overload protection is activated. Because more energy than required is provided to the output, the output voltage may exceed the rated voltage before the overload protection is activated, resulting in the breakdown of the devices in the secondary side. To prevent this situation, an overvoltage protection (OVP) circuit is employed. In general, VCC is proportional to the output voltage and the FSDM0465RS uses VCC instead of directly monitoring the output voltage. If VCC exceeds 19V, an OVP circuit is activated resulting in the termination of the switching operation. To avoid undesired activation of OVP during normal operation, VCC should be designed to be below 19V. t FSDM0465RS Rev: 00 Normal operation Fault situation Normal operation Figure 19. Auto Restart Operation 3.1 Overload Protection (OLP): Overload is defined as the load current exceeding a pre-set level due to an unexpected event. In this situation, the protection circuit should be activated to protect the SMPS. However, even when the SMPS is in the normal operation, the overload protection circuit can be activated during the load transition. To avoid this undesired operation, the overload protection circuit is designed to be activated after a specified time to determine whether it is a transient situation or an overload situation. Because of the pulse-by-pulse current limit capability, the maximum peak current through the SenseFET is limited, and therefore the maximum input power is restricted with a given input voltage. If the output consumes beyond this maximum power, the output voltage (VO) decreases below the set voltage. This reduces the current through the opto-coupler LED, which reduces the opto-coupler transistor current, thus increasing the feedback voltage (VFB). If VFB exceeds 2.5V, D1 is blocked and the 3.5µA current source starts to charge CB slowly up to VCC. In this condition, VFB continues increasing until it reaches 6V, when the switching operation is terminated as shown in Figure 20. The delay time for shutdown is the time required to charge CB from 2.5V to 6.0V with 3.5µA. In general, a 10 ~ 50ms delay time is typical for most applications. 3.3 Thermal Shutdown (TSD): The SenseFET and the control IC are built in one package. This makes it easy for the control IC to detect the heat generation from the SenseFET. When the temperature exceeds approximately 150°C, the thermal shutdown is activated. 4.2 Abnormal Over-Current Protection (AOCP): When the secondary rectifier diodes or the transformer pins are shorted, a steep current with extremely high di/dt can flow through the SenseFET during the LEB time. Even though the FPS has overload protection, it is not enough to protect the FPS in those abnormal cases, since severe current stress is imposed on the SenseFET until OLP triggers. This IC has an internal AOCP circuit shown in Figure 21. When the gate turn-on signal is applied to the power SenseFET, the AOCP block is enabled and monitors the current through the sensing resistor. The voltage across the resistor is compared with a preset AOCP level. If the sensing resistor voltage is © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 12 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) disable the switching of the power SenseFET until the fault condition is eliminated (see Figure 19). Vo Voset OSC 2.5R S Q R Q VFB Gate driver R LEB 0.7V 0.5V AOCP protection 2 GND Ids VCL FSDM0465RS Rev: 00 Figure 21. Abnormal Over-Current Protection Vds 4. Soft-Start: The FSDM0465RS has an internal softstart circuit that increases PWM comparator inverting input voltage together with the SenseFET current slowly after it starts up. The typical soft-start time is 10ms. The pulse width to the power switching device is progressively increased to establish the correct working conditions for transformers, inductors, and capacitors. The voltage on the output capacitors is progressively increased with the intention of smoothly establishing the required output voltage. It helps prevent transformer saturation and reduces the stress on the secondary diode during startup. time FSDM0465RS Rev: 00 T1 Switching disabled T2 T3 Switching disabled T4 Figure 22. Waveforms of Burst Operation 5. Burst Operation: To minimize power dissipation in standby mode, the FSDM0465RS enters burst mode operation. As the load decreases, the feedback voltage decreases. As shown in Figure 22, the device automatically enters burst mode when the feedback voltage drops below VBURL(500mV). At this point switching stops and the output voltages start to drop at a rate dependent on standby current load. This causes the feedback voltage to rise. Once it passes VBURH(700mV) switching resumes. The feedback voltage then falls and the process repeats. Burst mode operation alternately enables and disables switching of the power SenseFET thereby reducing switching loss in standby mode. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 13 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) greater than the AOCP level, the set signal is applied to the latch, resulting in the shutdown of the SMPS. Application Output Power Input Voltage Output Voltage (Maximum Current) LCD Monitor 34W Universal Input (85-265VAC) 5V (2.0A) 12V (2.0A) Features ! High Efficiency (>81% at 85VAC Input) ! Low Zero Load Power Consumption (<300mW at 240VAC Input) ! Low Standby Mode Power Consumption (<800mW at 240VAC Input and 0.3W Load) ! Low Component Count ! Enhanced System Reliability through Various Protection Functions ! Internal Soft-Start (10ms) Key Design Notes ! Resistors R102 and R105 are employed to prevent startup at low input voltage. After startup, there is no power loss in these resistors since the startup pin is internally disconnected after startup. ! The delay time for overload protection is designed to be about 50ms with C106 of 47nF. If a faster triggering of OLP is required, C106 can be reduced to 10nF. ! Zener diode ZD102 is used for a safety test such as UL. When the drain pin and feedback pin are shorted, the zener diode fails and remains short, which causes the fuse (F1) blown and prevents explosion of the opto-coupler (IC301). This zener diode also increases the immunity against line surge. 1. Schematic D202 T1 EER3016 MBRF10100 10 1 R102 30kΩ C103 100μF 400V R105 40kΩ BD101 2 2KBP06M3N257 1 5 4 C102 220nF 275VAC ZD102 10V 4 C106 47nF 50V 2 D101 UF 4007 8 12V, 2.5A C202 1000μF 25V C201 1000μF 25V 3 IC1 FSDM04565RS 6 3 C104 2.2nF 1kV R103 56kΩ 2W L201 Vstr Drain 1 D201 MBRF1045 NC Vcc 3 Vfb GND 2 ZD101 22V C105 D102 22μF UF4004 50V R104 5Ω 4 7 6 5 L202 5V, 2A C204 1000μF 10V C203 1000μF 10V C301 4.7nF LF101 23mH R201 1kΩ R101 560kΩ 1W RT1 5D-9 C101 220nF 275VAC R202 1.2kΩ IC301 H11A817A F1 FUSE 250V 2A IC201 KA431 R204 5.6kΩ R203 12kΩ C205 47nF R205 5.6kΩ FSDM0465RS Rev: 00 Figure 23. Demo Circuit © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 14 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Typical Application Circuit EER3016 Np/2 Np/2 1 10 2 9 3 8 4 7 Na 5 N12V N5V 6 FSDM0465RS Rev: 00 Figure 24. Transformer Schematic Diagram 3.Winding Specification No Pin (s→f) 4→5 Na Wire 0.2φ ×1 Turns Winding Method 8 Center Winding 18 Solenoid Winding 7 Center Winding 3 Center Winding 18 Solenoid Winding Insulation: Polyester Tape t = 0.050mm, 2 Layers 2→1 Np/2 0.4φ × 1 Insulation: Polyester Tape t = 0.050mm, 2 Layers 10 → 8 N12V 0.3φ × 3 Insulation: Polyester Tape t = 0.050mm, 2 Layers 7→6 N5V 0.3φ × 3 Insulation: Polyester Tape t = 0.050mm, 2 Layers 3→2 Np/2 0.4φ × 1 Outer Insulation: Polyester Tape t = 0.050mm, 2 Layers 4.Electrical Characteristics Pin Specification Remarks Inductance 1-3 650µH ± 10% 100kHz, 1V Leakage Inductance 1-3 10µH Maximum 2nd all short 5. Core & Bobbin ! Core: EER 3016 ! Bobbin: EER3016 ! Ae(mm2): 96 © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 15 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) 2. Transformer Part Value Note Part Value Fuse F101 2A/250V RT101 Note Inductor L201 5µH Wire 1.2mm NTC L202 5µH Wire 1.2mm Resistor D101 UF4007 5D-9 Diode R101 560kΩ 1W D102 UF4004 R102 30kΩ 1/4W D201 MBRF1045 R103 56kΩ 2W D202 MBRF10100 R104 5Ω 1/4W ZD101 Zener Diode 22V R105 40kΩ 1/4W ZD102 Zener Diode 10V R201 1kΩ 1/4W R202 1.2kΩ 1/4W R203 12kΩ 1/4W R204 5.6kΩ 1/4W R205 5.6kΩ 1/4W Bridge Diode BD101 2KBP06M 3N257 Bridge Diode Line Filter LF101 23mH Wire 0.4mm IC101 FSDM0465RS FPS™ IC Capacitor C101 220nF/275VAC Box Capacitor IC201 KA431 (TL431) Voltage Reference C102 220nF/275VAC Box Capacitor IC301 H11A817A Opto-coupler C103 100µF/400V Electrolytic Capacitor C104 2.2nF/1kV Ceramic Capacitor C105 22uF/50V Electrolytic Capacitor C106 47nF/50V Ceramic Capacitor C201 1000µF/25V Electrolytic Capacitor C202 1000µF/25V Electrolytic Capacitor C203 1000µF/10V Electrolytic Capacitor C204 1000µF/10V Electrolytic Capacitor C205 47nF/50V Ceramic Capacitor C301 4.7nF Polyester Film Capacitor © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 16 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) 6. Demo Circuit Part List FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) 7. Layout Figure 25. FSDM0465RS Demo Board (Top View) Figure 26. FSDM0465RS Demo Board (Bottom View) © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 17 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) Package Dimensions Figure 27. TO-220F-6L (Forming) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 18 FSDM0465RS — Green Mode Fairchild Power Switch (FPS™) © 2008 Fairchild Semiconductor Corporation FSDM0465RS Rev. 1.0.1 www.fairchildsemi.com 19