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This literature is subject to all applicable copyright laws and is not for resale in any manner. www.fairchildsemi.com FS7M0680, FS7M0880 Fairchild Power Switch (FPSTM) Features * * * * * * * * Pulse by Pulse Current Limit Over load protection (OLP) - Latch Over voltage protection (OVP) - Latch Internal Thermal Shutdown (TSD) - Latch Under Voltage Lock Out (UVLO) with hysteresis Internal High Voltage SenseFET (800V rated) User defined Soft Start Precision Fixed Operating Frequency (66kHz) Application * PC power supply * PDP Description The Fairchild Power Switch FS7M-series is an integrated Pulse Width Modulator (PWM) and Sense FET specifically designed for high performance offline Switch Mode Power Supplies (SMPS) with minimal external components. This device is an integrated high voltage power switching regulator which combine an avalanche rugged Sense FET 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, soft start, temperature compensated precise current sources for a loop compensation and self protection circuitry. Compared with discrete MOSFET and PWM controller solution, it can reduce total cost, component count, size and weight simultaneously increasing efficiency, productivity, and system reliability. This device is a basic platform well suited for cost effective designs of flyback and forward converters. Table 1. Maximum Output Power OUTPUT POWER TABLE 230VAC 15%(2) 85-265VAC Open Frame(1) Open Frame(1) FS7M0680 80W (Flyback) 150W (Forward) 180W (Forward) (3) 65W (Flyback) FS7M0880 110W (Flyback) 200W (Forward) 250W (Forward) (3) 85W (Flyback) PRODUCT Notes: 1. Maximum practical continuous power in an open frame design at 50C ambient. 2. 230 VAC or 100/115 VAC with doubler. 3. When the cooling fan is used. Typical Circuit Vo AC IN S/S FS7M-series PWM Drain GND VFB Vcc Figure 1. Typical Forward Application Rev.1.0.2 (c)2005 Fairchild Semiconductor Corporation FS7M0680, FS7M0880 Internal Block Diagram Vcc 3 Drain 1 Vref Vcc good Vref 9V/15V Internal Bias Soft start 5 Reset Vcc OSC Vref Idelay IFB PWM S Q R Q FB 4 2.5R Gate driver R LEB VSD Vcc S Q R Q Vovp TSD Vcc Reset (Vcc<6V) 2 GND AOCP Figure 2. Functional Block Diagram of FS7M0680 and FS7M0880 2 Vocp FS7M0680, FS7M0880 Pin Definitions Pin Number Pin Name 1 Drain 2 GND This pin is the control ground and the SenseFET source. Vcc This pin is the positive supply input. This pin provides internal operating current for both start-up and steady-state operation. 4 Vfb 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 7.5V, the over load protection triggers resulting in shutdown of the FPS. 5 Soft-start This pin is for the soft start. Soft start time is programmed by a capacitor on this pin. 3 Pin Function Description High voltage power SenseFET drain connection. Pin Configuration TO-3P-5L 5.S/S 4.Vfb 3.Vcc 2.GND 1.Drain Figure 3. Pin Configuration (Top View) 3 FS7M0680, FS7M0880 Absolute Maximum Ratings FS7M0680 Parameter Symbol Value Unit VD,MAX 800 V VDGR 800 V VGS 30 V IDM 24.0 ADC EAS 455 mJ IAS 20 A Continuous Drain Current (TC=25C) ID 6.0 ADC Continuous Drain Current (TC=100C) ID 3.8 ADC VCC,MAX 30 V VFB -0.3 to VSD V PD 150 W Derating 1.21 W/C TA -25 to +85 C TSTG -55 to +150 C Symbol Value Unit VD,MAX 800 V VDGR 800 V VGS 30 V Maximum Drain Voltage (1) Drain-Gate Voltage (RGS=1M) Gate-Source (GND) Voltage Drain Current Pulsed (2) Single Pulsed Avalanche Energy Avalanche Current (3) (4) Maximum Supply Voltage Input Voltage Range Total Power Dissipation Operating Ambient Temperature Storage Temperature FS7M0880 Parameter Maximum Drain Voltage (1) Drain-Gate Voltage (RGS=1M) Gate-Source (GND) Voltage (2) IDM 32.0 ADC EAS 810 mJ IAS 15 A Continuous Drain Current (TC=25C) ID 8.0 ADC Continuous Drain Current (TC=100C) ID 5.6 ADC VCC,MAX 30 V VFB -0.3 to VSD V PD 190 W Derating 1.54 W/C TA -25 to +85 C TSTG -55 to +150 C Drain Current Pulsed Single Pulsed Avalanche Energy (3) Avalanche Current (4) Maximum Supply Voltage Input Voltage Range Total Power Dissipation Operating Ambient Temperature Storage Temperature Note: 1. Tj = 25C to 150C 2. Repetitive rating: Pulse width limited by maximum junction temperature 3. L = 24mH, VDD = 50V, RG = 25, starting Tj =25C 4. L = 13H, starting Tj = 25C 4 FS7M0680, FS7M0880 Electrical Characteristics (SenseFET Part) (Ta=25C unless otherwise specified) FS7M0680 Parameter Symbol Condition Min. Typ. Max. Unit Drain-Source Breakdown Voltage BVDSS VGS=0V, ID=50A 800 - - V VDS=Max., Rating, VGS=0V - - 50 A VDS=0.8Max., Rating, VGS=0V, TC=125C - - 200 A Zero Gate Voltage Drain Current IDSS Static Drain-Source On Resistance (note1) RDS(ON) Input Capacitance Ciss Output Capacitance Coss Reverse Transfer Capacitance Crss Turn On Delay Time td(on) Rise Time tr Turn Off Delay Time td(off) Fall Time tf VGS=10V, ID=5.0A VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=8.0A (MOSFET switching time are essentially independent of operating temperature) - 1.6 2.0 - 1600 - - 140 - - 42 - - 60 - - 150 - - 300 - - 130 - pF nS - 70 - - 16 - Qgd VGS=10V, ID=8.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) - 27 - Parameter Symbol Condition Min. Typ. Max. Unit Drain-Source Breakdown Voltage BVDSS VGS=0V, ID=50A 800 - - V VDS=Max., Rating, VGS=0V - - 50 A VDS=0.8Max., Rating, VGS=0V, TC=125C - - 200 A VGS=10V, ID=5.0A - 1.2 1.5 - 2460 - Total Gate Charge (Gate-Source+Gate-Drain) Qg Gate-Source Charge Qgs Gate-Drain (Miller) Charge nC FS7M0880 Zero Gate Voltage Drain Current IDSS Static Drain-Source On Resistance (note1) RDS(ON) Input Capacitance Ciss Output Capacitance Coss Reverse Transfer Capacitance Crss Turn On Delay Time td(on) Rise Time Turn Off Delay Time Fall Time tr td(off) tf Total Gate Charge (Gate-Source+Gate-Drain) Qg Gate-Source Charge Qgs Gate-Drain (Miller) Charge Qgd VGS=0V, VDS=25V, f=1MHz VDD=0.5BVDSS, ID=8.0A (MOSFET switching time are essentially independent of operating temperature) VGS=10V, ID=8.0A, VDS=0.5BVDSS (MOSFET switching time are essentially independent of operating temperature) - 210 - - 64 - - - 90 - 95 200 - 150 450 - 60 150 - - 150 - 20 - - 70 - pF nS nC Note: 1. Pulse test: Pulse width 300S, duty cycle 2% 5 FS7M0680, FS7M0880 Electrical Characteristics (Continued) (Ta=25C unless otherwise specified) Parameter Symbol Condition Min. Typ. Max. Unit Start Threshold Voltage VSTART - 14 15 16 V Stop Threshold Voltage VSTOP After turn on 8 9 10 V FOSC - 60 66 72 kHz - 5 10 % - 45 50 55 % UVLO SECTION OSCILLATOR SECTION Initial Frequency Frequency Change With Temperature (2) Maximum Duty Cycle F/T -25C Ta +85C Dmax FEEDBACK SECTION Feedback Source Current IFB Ta=25C, 0V Vfb 3V 0.7 0.9 1.1 mA Shutdown Delay Current Idelay Ta=25C, 5V Vfb VSD 4.0 5.0 6.0 A SOFT START SECTION Soft Start Voltage VSS VFB =2V 4.7 5.0 5.3 V Soft Start Current ISS Sync & S/S=GND 0.8 1.0 1.2 mA CURRENT LIMIT (SELT-PROTECTION)SECTION FS7M0680 IOVER Max. inductor current 3.52 4.00 4.48 A FS7M0880 IOVER Max. inductor current 4.40 5.00 5.60 A PROTECTION SECTION Thermal Shutdown Temperature (Tj) (1) C TSD - 140 Over Voltage Protection Voltage VOVP - 25 28 31 V Over Current Protection Voltage VOCP - 1.05 1.10 1.15 V TOTAL DEVICE SECTION Start Up Current Operating Supply Current (Control Part Only) Shutdown Feedback Voltage ISTART VCC=14V - 40 80 uA IOP Ta=25C - 8 12 mA 150 250 350 uA 6.9 7.5 8.1 V Iop(lat) VSD After latch, Vcc=Vstop-0.1V - Note: 1. These parameters, although guaranteed, are not 100% tested in production 2. These parameters, although guaranteed, are tested in EDS (wafer test) process 6 FS7M0680, FS7M0880 Electrical characteristics 1.20 1.20 1.15 1.10 Normalized to 25C Normalized to 25C 1.15 1.05 1.00 0.95 0.90 0.85 0.80 -40 1.10 1.05 1.00 0.95 0.90 0.85 -20 0 20 40 60 80 Temperature [C] 0.80 -40 100 120 140 160 0 20 60 80 100 120 140 160 Start up Current vs. Temp. 1.20 1.15 1.15 Normalized to 25C 1.20 1.10 1.05 1.00 0.95 0.90 1.10 1.05 1.00 0.95 0.90 0.85 0.85 0.80 -40 -20 0 20 40 60 80 0.80 -40 100 120 140 160 -20 0 20 60 80 100 120 140 160 Vcc Stop Threshold Voltage vs. Temp. Vcc Start Threshold Voltage vs. Temp. 1.20 1.15 1.15 1.10 1.10 Dmax [%] 1.20 1.05 1.00 0.95 1.05 1.00 0.95 0.90 0.90 0.85 0.85 0.80 -40 40 Temperature [C] Temperature [C] Normalized to 25C 40 Temperature [C] Operating Supply Current vs. Temp. Normalized to 25C -20 -20 0 20 40 60 80 100 120 Temperature [C] Operating Frequency vs. Temp. 140 160 0.80 -40 -20 0 20 40 60 80 100 120 140 160 Temperature [C] Maximum Duty Cycle vs. Temp. 7 FS7M0680, FS7M0880 Electrical characteristics 1.20 Normalized to 25C Normalized to 25C 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 -20 0 20 40 60 80 100 120 140 160 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 0.7 0.6 0.5 -40 -20 0 20 Temperature [C] 1.20 1.15 1.15 Normalized to 25C Normalized to 25C 1.20 1.05 1.00 0.95 0.90 0.80 -40 100 120 140 160 1.10 1.05 1.00 0.95 0.90 -20 0 20 40 60 80 0.80 -40 100 120 140 160 -20 0 20 40 60 80 100 120 140 160 Temperature [C] Temperature [C] Shutdown Feedback Voltage vs. Temp. Shutdown Delay Current vs. Temp. 1.20 1.20 1.15 1.15 Normalized to 25C Normalized to 25C 80 0.85 0.85 1.10 1.05 1.00 0.95 0.90 0.85 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 -20 0 20 40 60 80 100 120 140 160 Temperature [C] SoftStart Voltage vs. Temp. 8 60 Feedback Offset Voltage vs. Temp. Minimum Duty Cycle vs. Temp. 1.10 40 Temperature [C] 0.80 -40 -20 0 20 40 60 80 100 120 140 160 Temperature [C] Over Voltage Protection vs. Temp. FS7M0680, FS7M0880 Electrical characteristics 1.20 1.4 1.15 Normalized to 25C Normalized to 25C 1.3 1.2 1.1 1.0 0.9 0.8 -40 -20 0 20 40 60 80 100 120 140 160 Temperature [C] Feedback Current vs. Temp. 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 -20 0 20 40 60 80 100 120 140 160 Temperature [C] Pulse-by-pulse Current limit vs. Temp. 9 FS7M0680, FS7M0880 Functional Description 1. Startup : Figure 4 shows the typical startup circuit and transformer auxiliary winding for FS7M-series. Because all the protections are implemented as latch mode, AC startup is typically used to provide a fast reset as shown in Figure 4. Before FPS begins switching operation, only startup current (typically 40uA) is consumed and the current supplied from the AC line charges the external capacitor (Ca) that is connected to the Vcc pin. When Vcc reaches start voltage of 15V (VSTART), FPS begins switching, and the current consumed by FPS increases to 8mA. Then, FPS continues its normal switching operation and the power required for this device is supplied from the transformer auxiliary winding, unless Vcc drops below the stop voltage of 9V (VSTOP). To guarantee the stable operation of the control IC, Vcc has under voltage lockout (UVLO) with 6V hysteresis. Figure 5 shows the relation between the FPS operating supply current and the supply voltage (Vcc). The minimum average of the current supplied from the AC is given by I sup avg min 2 V ac V start 1 - ---------= ----------------------------- - ------------2 R str where Vacmin is the minimum input voltage, Vstart is the Vcc start voltage (15V) and Rstr is the startup resistor. The startup resistor should be chosen so that Isupavg is larger than the maximum startup current (80uA). Once the resistor value is determined, the maximum loss in the startup resistor is obtained as max 2 2 max ) + V start 2 2 V start V ac 1 ( V ac - - - ----------------------------------------------------Loss = ---------- -------------------------------------------------R str 2 where Vacmax is the maximum input voltage. The startup resistor should have proper rated dissipation wattage. 2. Feedback Control : FS7M-series employs current mode control, as shown in Figure 6. 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. CDC 1N4007 AC line (Va cm in - Vacm ax) Isup Rs tr Da Vcc FS7M -series Ca 2.1 Pulse-by-pulse current limit: Because current mode control is employed, the peak current through the Sense FET is limited by the inverting input of PWM comparator (Vfb*) as shown in Figure 6. The feedback current (IFB) and internal resistors are designed so that the maximum cathode voltage of diode D2 is about 2.8V, which occurs when all IFB flows through the internal resistors. Since D1 is blocked when the feedback voltage (Vfb) exceeds 2.8V, 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 Sense FET is limited. Figure 4. Startup circuit Icc 8mA Power Down Power Up 40uA Vcc Vstop=9V Vstart=15V Vz Figure 5. Relation between operating supply current and Vcc voltage 10 2.2 Leading edge blanking (LEB) : At the instant the internal Sense FET is turned on, there usually exists a high current spike through the Sense FET, caused by external resonant capacitor across the MOSFET 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 FPS employs a leading edge blanking (LEB) circuit. This circuit inhibits the PWM comparator for a short time (TLEB) after the Sense FET is turned on. FS7M0680, FS7M0880 Vcc Vref Idelay Vfb Vo IFB 4 H11A817A SenseFET OSC D1 CB D2 + Vfb* KA431 2.5R Gate driver R - OLP VSD Rsense Figure 6. Pulse width modulation (PWM) circuit 3. Protection Circuit : The FS7M-series has several self protective functions such as over load protection (OLP), abnormal over current protection (AOCP), over voltage protection (OVP) and thermal shutdown (TSD). All the protections are latch mode protection. Because these protection circuits are fully integrated into the IC without external components, the reliability can be improved without increasing cost. Once protection triggers, switching is terminated and Vcc continues charging and discharging between 9V and 15V until the AC power line is un-plugged. The latch is reset only when Vcc is fully discharged by un-plugging the Ac power line. AC line plugged-in Vds Fault occurs AC line un-plugged AC line plugged-in 3.1 Over Load Protection (OLP) : Overload is defined as the load current exceeding its normal level due to an unexpected abnormal event. In this situation, the protection circuit should trigger in order to protect the SMPS. However, even when the SMPS is in the normal operation, the over load protection circuit can be triggered during the load transition. In order to avoid this undesired operation, the over load protection circuit is designed to trigger 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 Sense FET is limited, and therefore the maximum input power is restricted with a given input voltage. If the output consumes more than this maximum power, the output voltage (Vo) decreases below the set voltage. This reduces the current through the opto-coupler LED, which also reduces the opto-coupler transistor current, thus increasing the feedback voltage (Vfb). If Vfb exceeds 2.8V, D1 is blocked and the 5uA current source starts to charge CB slowly up to Vcc. In this condition, Vfb continues increasing until it reaches 7.5V, when the switching operation is terminated as shown in Figure 8. The delay time for shutdown is the time required to charge CB from 2.8V to 7.5V with 5uA. In general, a 20 ~ 50 ms delay time is typical for most applications. This protection is implemented in auto restart mode. V FB Over load protection 7.5V 2.8V Vcc reset T12= CB*(7.5-2.8)/Idelay T1 T2 t Figure 8. Over load protection Vcc 15V 9V 6V t Normal operation Latch Normal operation Figure 7. Auto restart mode protection 3.2 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 FS7M-series has OLP (Over Load Protection), it is not enough to protect the FPS in that abnormal case, since sever current stress will be imposed on the SenseFET until OLP triggers. The FS7M-series has an internal AOCP (Abnormal Over Current Protection) circuit as shown in Figure 9. When the gate turn-on signal is applied to the power Sense FET, the AOCP block is enabled and monitors the current through the sensing resistor. The voltage across the resistor is then 11 FS7M0680, FS7M0880 compared with a preset AOCP level. If the sensing resistor voltage is greater than the AOCP level, the set signal is applied to the latch, resulting in the shutdown of SMPS. This protection is implemented in latch mode. 2.5R OSC PWM R S Q R Q Gate driver LEB Rsense + AOCP Vaocp 2 GND - Figure 9. AOCP block 3.3 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 over load situation, forcing the preset maximum current to be supplied to the SMPS until the over load protection is activated. Because more energy than required is provided to the output, the output voltage may exceed the rated voltage before the over load protection is activated, resulting in the breakdown of the devices in the secondary side. In order to prevent this situation, an over voltage protection (OVP) circuit is employed. In general, Vcc is proportional to the output voltage and the FPS uses Vcc instead of directly monitoring the output voltage. If VCC exceeds 28V, an OVP circuit is activated resulting in the termination of the switching operation. In order to avoid undesired activation of OVP during normal operation, Vcc should be designed to be below OVP threshold. 3.4 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 abnormal over temperature of the SenseFET. When the temperature exceeds approximately 150C, the thermal shutdown triggers. This protection is implemented in latch mode. 4. Soft Start : The FS7M-series has a soft start circuit that increases PWM comparator inverting input voltage together with the SenseFET current slowly after it starts up. The soft start time can be programmed using a capacitor on the softstart pin. The pulse width to the power switching device is progressively increased to establish the correct working conditions for transformers, inductors, and capacitors. It also helps to prevent transformer saturation and reduce the stress on the secondary diode during startup. 12 FS7M0680, FS7M0880 Typical application circuit I (7M0880 : Forward) Application Output power Input voltage Output voltage (Max current) PC Power 250W (Cooling Fan) Universal input with voltage doubler 5V (26A), 12V (10A) 1. Schematic D5 T1 MBRF30H100CT EER3542 13,14 1 R1 50k 0.5W R5 220k 1W C4 470uF 200V C5 470uF 200V R3 56k 2W R4 56k 2W R6 220k 1W 8, 9 D2 FR257 D1 UF4007 5 S/S C2 4.7nF 1kV 4 C3 4.7nF 1kV C10 1uF 16V C9 33nF C11 1000uF 16V C12 2200uF 16V R13 5V, 26A C13 3300uF 10V D4 MBR3060PT 3 IC1 FS7M0880 BD1 GDB206 12V, 10A C18 C6 22nF 630V R2 50k 0.5W L1 C14 1000uF 10V 10,11,12 Drain 1 Vcc FB D3 UF4007 3 R7 10 6 GND 2 C7 33uF 35V R11 1k 7 OP1 PC817 LF1 R12 820 C15 10nF 1kV C1 470nF 275VAC C16 IC3 10nF KA431 1kV C17 100nF R9 1k R10 1k RT1 10D-11 F101 FUSE 250V 5.0A 2.Transformer Specification (CORE : EER 3542 , BOBBIN : EER3542) No. PIN(S F) WIRE TURNS WINDING METHOD NP/2 13 0.65 x 1 50T SOLENOID WINDING N+5V 8, 9 10, 11, 12 15mm x 0.15mm x 1 4T COPPER FOIL WINDING N+12V 13, 14 9 0.65 x 3 5T SOLENOID WINDING NP/2 13 0.65 x 1 50T SOLENOID WINDING NVCC 76 0.6 x 1 6T SOLENOID WINDING Transformer Electrical Characteristics Pin Specification Remarks Inductance 1-3 6mH 5% @70kHz, 1V Leakage Inductance 1-3 15uH Max 2nd all short 3. Secondary Inductor(L1) Specification Core : Power Core 27 16 Grade 5V : 12T (1 x 2) 10V : 27T (1.2 x 1) 13 FS7M0680, FS7M0880 Typical application circuit II (7M0880 : Flyback) Application Output power Input voltage Output voltage (Max current) Adaptor 108W European Input 12V (9A) 1. Schematic EER4042 47k 2W 100uF 400V 2KBP06M3N257 12V, 9A 13 22nF 630V 2200uF 25V 3 100k 1W 12 2200uF / 25V X3 UF 4007 4 IC1 FS7M0880 5 S/S Drain 1 UF4004 2.2nF 250VAC 2.2nF 250VAC 4 1uF 50V Vcc FB 12 3 7 GND 2 22nF 9uH MBR30100CT 1 NTC 10D-11 47uF 50V 1k 8 LF1 20mH PC817 7.6k 2.2k 4.7k 47nF 100nF 275VAC 3.3nF IC3 KA431 1k FUSE 250V 2.0A 2. Transformer Specification Winding Specification No. PIN(S F) WIRE TURNS WINDING METHOD NP/2 13 0.4 x 1 42 SOLENOID WINDING INSULATION : POLYESTER TAPE t = 0.050mm, 1Layer N+12V 12 13 NB 87 14mm x 0.15mm x 1 8 COPPER WINDING INSULATION : POLYESTER TAPE t = 0.050mm, 3Layer 0.3 x 1 9 SOLENOID WINDING INSULATION : POLYESTER TAPE t = 0.050mm, 1Layer NP/2 34 0.4 x 1 42 SOLENOID WINDING OUTER INSULATION : POLYESTER TAPE t = 0.050mm, 3Layer Electrical Characteristic CLOSURE PIN SPEC. REMARKS INDUCTANCE 1-4 700uH 10% 1kHz, 1V LEAKAGE L 1-4 10uH MAX. 2nd ALL SHORT Core & Bobbin CORE : EER 4042 , BOBBIN : EER4042 14 FS7M0680, FS7M0880 Package Dimensions TO-3P-5L 15 FS7M0680, FS7M0880 Package Dimensions (Continued) TO-3P-5L(Forming) 16 FS7M0680, FS7M0880 Ordering Information Product Number FS7M0680TU FS7M0680YDTU FS7M0880TU FS7M0880YDTU Package TO-3P-5L TO-3P-5L(Forming) TO-3P-5L TO-3P-5L(Forming) Rating Fosc 800V, 6A 66kHz 800V, 8A 66kHz TU : Non Forming Type YDTU : Forming type 17 FS7M0680, FS7M0880 DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury of the user. 2. A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. www.fairchildsemi.com 5/4/05 0.0m 001 2005 Fairchild Semiconductor Corporation ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries. ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor's product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent-Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein. 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