FSQ510_08 FAIRCHILD [Fairchild Semiconductor], FSQ510_08 Datasheet
FSQ510_08
Related parts for FSQ510_08
FSQ510_08 Summary of contents
Page 1
FSQ510, FSQ510H, and FSQ510M Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter – Low EMI and High Efficiency Features Uses an LDMOS Integrated Power Switch Optimized for Valley Switching Converter (VSC) Low EMI through Variable Frequency Control and ...
Page 2
Application Circuit AC IN Internal Block Diagram V V REF REF I I delay ( 0.85V / 0.75V OLP TSD 4.7V © 2008 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.2.0 V ...
Page 3
Pin Assignments Figure 3. Pin Definitions 7-Pin 8-Pin © 2008 Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.2.0 V str V fb Sync ...
Page 4
Absolute Maximum Ratings 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 ...
Page 5
E lectrical Characteristics T T =25°C unless otherwise specified. J Symbol Parameter SenseFET Section BV Drain-Source Breakdown Voltage DSS I Zero-Gate-Voltage Drain Current DSS R Drain-Source On-State Resistance DS(ON) (8) C Input Capacitance ISS (8) C Output Capacitance OSS (8) ...
Page 6
Comparison between FSD210B and FSQ510 Function FSD210B Control Mode Voltage Mode Constant Frequency Operation Method PWM EMI Reduction Frequency Method Modulation Soft-Start 3ms (Built-in) Protection TSD Power Balance Long T Less than 5W Under Open-Frame Power Ratings Condition at the ...
Page 7
Typical Performance Characteristics Characteristic graphs are normalized at T 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [℃] Figure 4. Operating Frequency (f 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 -25 ...
Page 8
Typical Performance Characteristics 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [℃] Figure 10. Feedback Source Current (I 1.20 1.15 1.10 1.05 1.00 0.95 0.90 0.85 0.80 -40 - Temperature [℃] Figure ...
Page 9
Functional Description 1. Startup: At startup, an internal high-voltage current source supplies the internal bias and charges the external capacitor (C ) connected to the V a illustrated in Figure 13. When V FPS begins switching and the internal high-voltage ...
Page 10
Protection Circuits: The FSQ510 ( has two self-protective functions, overload protection (OLP) and thermal shutdown (TSD). The implemented as auto-restart mode. Once the fault condition is detected, switching is terminated and the SenseFET remains off. This causes ...
Page 11
Vo set 0.85V 0.75V Switching disabled Figure 18. Burst-Mode Operation 7. Advanced Valley Switching minimize switching loss and Interference (EMI), the MOSFET turns on when the drain voltage reaches ...
Page 12
Package Dimensions 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 ...
Page 13
Package Dimensions (Continued) 9.83 9.00 5.08 MAX 0.33 MIN (0.56) 2.54 7.62 NOTES: UNLESS OTHERWISE SPECIFIED A) THIS PACKAGE CONFORMS TO JEDEC MS-001 VARIATION BA B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS ARE EXCLUSIVE OF BURRS, MOLD FLASH, AND ...
Page 14
Package Dimensions (Continued) MKT-MLSOP07ArevA 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 ...
Page 15
Fairchild Semiconductor Corporation FSQ510, FSQ510H, and FSQ510M • Rev. 1.2.0 15 www.fairchildsemi.com ...