Key facts
- Brand
- Fairchild
- Model
- Power56
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-12
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Fairchild Semiconductor Power56 Guidelines for Using
This document provides guidelines for using Fairchild Semiconductor's Power56 MOSFET, which features a large drain tab for improved thermal performance in an SO-8 footprint. It details specific mounting techniques for both prototype and manufacturing environments, focusing on the critical process of attaching the component to the Printed Wiring Board (PWB). Key areas of focus include board layout optimization for heat dissipation and specific recommendations for via placement to enhance thermal performance without compromising manufacturability.
The guide covers the solder process in detail, including stencil design, solder paste selection (eutectic and lead-free), and reflow profiles. It addresses common issues such as exposed copper on lead ends and solder fillet formation. Additionally, the document offers instructions for production assembly using standard pick and place equipment, as well as specific methods for rework and prototype mounting using hot air guns.
Fairchild Power56 specifications
| Maximum seating plane tolerance | 0.06mm |
|---|---|
| Peak temperature tested | 260°C |
| Acceptable overall voiding | 25% |
Source: Fairchild Semiconductor Power56 Guidelines for Using
All Fairchild Power56 documents by type
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
Is it recommended to place vias in the drain pad for Power56?
No, placing vias in the drain pad is not recommended as it creates unpredictable solder joint formation.
What is the preferred method for removing a Power56 component during rework?
The preferred method is using a hot air rework station with a vacuum chuck.
What solder alloy is recommended for the Dual Power56?
SAC 305 (96.5 Sn/3.0Au/0.5Cu) is the lead free solder paste alloy of choice.
From: Fairchild Semiconductor AN9046 Assembly Guidelines for Dual Power56 Packaging
What is the maximum recommended voiding percentage?
Fairchild recommends a guideline of 25% maximum voiding for MLP type packages.
From: Fairchild Semiconductor AN9046 Assembly Guidelines for Dual Power56 Packaging
