FSFM261 Fairchild Semiconductor, FSFM261 Datasheet
FSFM261
Related parts for FSFM261
FSFM261 Summary of contents
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... Flyback Converters AN-4148: Audible Noise Reduction Techniques for ! Fairchild Power Switch (FPS © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 Description The FSFM260/261/300 is an integrated Pulse Width Modulator (PWM) and SenseFET specifically designed for high-performance offline Switch Mode Power Supplies (SMPS) with minimal external components ...
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... Typical continuous power in a non-ventilated enclosed adapter measured at 50°C ambient temperature. 4. Maximum practical continuous power in an open-frame design at 50°C ambient. 5. Eco status for all the FSFM260N, FSFM261N and FSFM300NS is RoHS. For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. Eco Status: RoHS. ...
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... delay LIM OVP TSD © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 V STR Drain I LIM PWM GND Figure 1. Typical Flyback Application OSC PWM Normal S Burst LEB Soft Start 250ns ...
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... V STR nal capacitor connected to the V disabled not recommended to connect V 6,7,8 Drain SenseFET Drain. High-voltage power SenseFET drain connection. © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 GND Drain V Drain CC 8-DIP FB Drain I ...
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... Junction-to-Top Thermal Resistance JT Notes: 9. Free standing with no heat-sink under natural convection. 10. Infinite cooling condition - refer to the SEMI G30-88. 11. Measured on the package top surface. © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 = 25°C, unless otherwise specified. A Parameter ( 25°C ...
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... Minimum Duty Cycle MIN V START UVLO Threshold Voltage V STOP t Internal Soft-Start Time S/S Burst Mode Section V BURH Burst Mode Voltages V BURL © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 Condition 250µ 0V 250µ 650V 0V 25° ...
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... Startup Charging Current CH V Minimum V Supply Voltage STR STR Notes: 12. Pulse test: pulse width ≤ 300µs, duty ≤ 2%. 13. Guaranteed by design; not tested in production. © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 (Continued) Condition ≥ 5. (13) FSFM260/ ...
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... Temperature [°C] Figure 6. UVLO Stop Threshold Voltage (V ) vs. T STOP 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature [°C] Figure 8. Switching Frequency (f © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 ) vs. T Figure 5. UVLO Start Threshold Voltage OP A 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 Figure 7. Startup Charging Current ( ...
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... Temperature [°C] Figure 12. Shutdown Delay Current (I 1.2 1.0 0.8 0.6 0.4 0.2 0.0 - Temperature [°C] Figure 14. Burst-Mode LOW Threshold Voltage (V ) vs. T BURL © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 (Continued) 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 -25 ) vs. T Figure 11. Feedback Source Current (I OVP A 1.2 1.0 0.8 0.6 0.4 0.2 0.0 75 100 125 - ...
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... In this case, the cathode voltage of diode D2 and the peak drain current have maximum © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 values of 2.5V and 1.5A, respectively. The pulse-by- pulse current limit can be adjusted using a resistor to GND on the current limit pin (#4). The current limit level ...
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... Because these protection circuits are fully integrated into the IC without external © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 components, increasing cost. Once the fault condition occurs, CC switching is terminated and the SenseFET remains off. ...
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... R AOCP protection Figure 21. Abnormal Over-Current Protection © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 4. Soft-Start: The FSFM260/261/300 has an internal soft- start circuit that increases PWM comparator inverting input voltage, together with the SenseFET current, slowly after it starts up. The typical soft-start time is 15ms ...
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... Drain pins are also high voltage switching pins; however, too wide PCB pattern may deteriorate EMI immunity. © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 controller and is better for smooth CC Mylar® registered trademark of DuPont Teijin Films. ...
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... AC LF101 R108 30mH N.C R101 1M 1W C101 RT1 150nF NTC F1 275V 5D-9 AC FUSE 250V 2A © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 Input Voltage Rated Output Power Range 85-265V AC input and 0.5W load) AC R103 C104 51k 3.3nF 630V 1W D101 1N4007 FSFM300N 5 V 6,7,8 STR ...
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... Insulation: Polyester Tape t = 0.025mm, Three Layers Top Insulation: Polyester Tape t = 0.025mm, Two Layers 4. Electrical Characteristics Inductance Leakage 5. Core & Bobbin Core: EER3016 (Ae=109.7mm ! Bobbin: EER3016 ! © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 N 14V GND ...
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... C107 47µF/50V C201 1000µF/25V C202 1000µF/25V C203 2200µF/10V C204 1000µF/10V C205 47nF/50V C301 4.7nF/1kV © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 Note Part 1W L201 1/2W L202 1W 1/4W D101 1/4W D102 1/4W ZD101 1/4W D201 ...
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... 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/. © 2009 Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 9.83 9.00 6.67 6 ...
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... Fairchild Semiconductor Corporation FSFM260N / FSFM261N / FSFM300N • Rev. 1.0.1 18 www.fairchildsemi.com ...