The FSFR-HS is a highly integrated power switch designed for high-efficiency half-bridge resonant converters. Offering everything necessary to build a reliable and robust resonant converter, the FSFR-HS simplifies designs while improving productivity and performance. The FSFR-HS combines power MOSFETs, a high-side gate-drive circuit, an accurate current-controlled oscillator, and built-in protection functions.
The high-side gate-drive circuit has a common-mode noise cancellation capability, which provides stable operation with excellent noise immunity. Using zero-voltage-switching (ZVS) technique dramatically reduces the switching losses and significantly improves efficiency. The ZVS also reduces the switching noise noticeably, even though the operating frequency increases. It allows a small Electromagnetic Interference (EMI) filter, besides the high operating frequency, to reduce the volume of the resonant tank and to increase power density.
The FSFR-HS can be applied to resonant converter topologies such as series resonant, parallel resonant, and LLC resonant converters.
| Product | Product & Eco Status | *Pricing | Packaging & Packing Info | **Package Marking Convention | Qualification Support | Compliance Certificates |
|---|---|---|---|---|---|---|
| FSFR1700HSL |
Full Production Green as of Mar 2011 |
$2.67 | SIP 9L Details RAIL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &E (Space) &E (Space) &E (Space) &3 (3-Digit Date Code) &K
Line 2:FSFR1700HSL
|
FIT :
7.6
Moisture Sensitivity Level (MSL) : NA Max Reflow Temp : 999 |
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| FSFR1700HS |
Full Production Green as of Mar 2011 |
$2.67 | SIP 9L Details RAIL |
Line 1:$Y (Fairchild logo) &Z (Plant Code) &E (Space) &E (Space) &3 (3-Digit Date Code) &K
Line 2:FSFR1700HS
|
FIT :
7.6
Moisture Sensitivity Level (MSL) : NA Max Reflow Temp : 999 |
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| Application Note | Description |
|---|---|
| AN-4151 | Half-Bridge LLC Resonant Converter Design Using FSFR-Series Fairchild Power Switch (FPS™)(1,113 K) 15-May-2012 |
| AN-4148 | Audible Noise Reduction Techniques for FPS™ Applications(220 K) 17-Jun-2011 |
| AN-4141 | Troubleshooting and Design Tips for Fairchild Power Switch (FPS™) Flyback Applications(200 K) 26-Jan-2012 |
| AN-4140 | Transformer Design Consideration for Offline Flyback Converters Using Fairchild Power Switch (FPS™)(1,116 K) 17-Apr-2013 |