FSQ510 Fairchild Semiconductor, FSQ510 Datasheet
FSQ510
Specifications of FSQ510
Available stocks
Related parts for FSQ510
FSQ510 Summary of contents
Page 1
... Compared with discrete MOSFET and PWM controller solutions, the FSQ510 ( can reduce total cost, component count, size and weight; while simultaneously increasing efficiency, productivity, and system reliability. This device provides a platform for cost-effective designs of a valley switching flyback converters ...
Page 2
... Internal Block Diagram V V REF REF I I delay ( 0.85V / 0.75V OLP TSD 4.7V © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 V str D VS -PWM Sync GND Figure 1. Typical Application Circuit Sync 4 (3) 200 ns delay 0.7V / 0.1V OSC ...
Page 3
... Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 V str V fb Sync GND Package Diagrams for FSQ510(M) and FSQ510H Name GND This pin is the control ground and the SenseFET source. This pin is internally connected to the inverting input of the PWM comparator ...
Page 4
... Free-standing with no heatsink; without copper clad; measurement condition - just before junction temperature T enters into TSD Measured on the DRAIN pin close to plastic interface. © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 Parameter 7-DIP 7-MLSOP 8-DIP <100uA) which has a tolerance between 6.2V and 7.2V. CLAMP_MAX ...
Page 5
... I OP (Control Part Only) I Startup Charging Current CH V Supply Voltage STR Note: 9. These parameters, although guaranteed, are not 100% tested in production. © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 Conditions V =0V, I =100μ =700V DS T =25°C, I =180mA ...
Page 6
... Power Balance Long T Less than 5W Under Open-Frame Power Ratings Condition at the Universal Line Input © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 FSQ510 Fast Response Current Mode Easy-to-Design Control Loop Valley Switching Turn-on at Minimum Drain Voltage Operation ...
Page 7
... Start Threshold Voltage (V 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [℃] Figure 8. Shutdown Feedback Voltage (V © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 =25°C. A 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0. 100 125 ) vs. T Figure 5. ...
Page 8
... Temperature [℃] Figure 12. Operating Supply Current (I © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 (Continued) 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0. 100 125 ) vs. T Figure 11. Shutdown Delay Current (I ...
Page 9
... V ref Figure 14. Valley Switching Pulse-Width Internal Bias 3. Synchronization: The FSQ510 ( employs a valley-switching technique to minimize the switching noise and loss. The basic waveforms of the valley switching converter are shown in Figure 15. To minimize the MOSFET switching loss, the MOSFET should be turned on when the drain voltage reaches its minimum value, as shown in Figure 15 ...
Page 10
... V capacitor. When V CC the start voltage of 8.7V, the FSQ510 ( resumes normal operation. If the fault condition is not removed, the SenseFET remains off and V voltage again. In this manner, the auto-restart can alternately enable and disable the switching of the power SenseFET until the fault condition is eliminated ...
Page 11
... Figure 19, the switching B frequency has minimum and maximum values. © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 Once the SenseFET is enabled, the next start is prohibited during the blanking time (t blanking time, the controller finds the first valley within the duration of the valley detection window time (t (case A, B, and C) ...
Page 12
... 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 FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 Figure 21. 7-Lead, Dual In-line Package (DIP) 12 www.fairchildsemi.com ...
Page 13
... 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/. © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 6.67 6.096 3.683 3.20 3 ...
Page 14
... 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/. © 2009 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 Figure 23. 7-Lead, MLSOP 14 www.fairchildsemi.com ...
Page 15
... Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.3.0 15 www.fairchildsemi.com ...