Key facts
- Brand
- Fairchild
- Model
- FDC6329L
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-07-12
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Fairchild Semiconductor FDC6329L Thermal Analysis Application Note
This document presents SPICE simulation results for the FDC6329L, specifically analyzing dynamic waveforms and the relationship between voltage drop (Vdrop) and load current (IL). It also includes measured dynamic waveform data for the device. The text is primarily in English, with the title containing Chinese characters.
The document details the heat flow theory applied to power MOSFETs, explaining how junction temperature is elevated by current and how thermal limits are determined. It defines steady-state junction-to-ambient thermal resistance (RθJA) and junction-to-case thermal resistance (RθJC), discussing factors affecting these values such as mounting pad size, PCB material, and leadframe design. Additionally, it describes methods for measuring transient thermal resistance using the intrinsic diode voltage and K factor calibration.
Fairchild FDC6329L specifications
| Device Type | Power MOSFET |
|---|---|
| Thermal Resistance Formula | RθJA = ( TJ - TA ) / P |
| K Factor Approximation | 2.2mV/°C |
| PCB Conductivity | 0.29 W/m-C |
Source: Fairchild Semiconductor FDC6329L Thermal Analysis Application Note
All Fairchild FDC6329L documents by type
How to use the product for one specific task, with worked examples.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the K factor for most Power MOSFET devices?
The K factor is approximately 2.2mV/°C for most Power MOSFET devices.
From: Fairchild Semiconductor FDC6329L Thermal Analysis Application Note
How is the steady-state junction-to-ambient thermal resistance defined?
It is defined as the ratio of the difference between junction temperature and ambient temperature to the power applied to the device.
From: Fairchild Semiconductor FDC6329L Thermal Analysis Application Note
What is the continuous load current capability?
The device supports a continuous load current of 2.5A.
From: Fairchild Semiconductor FDC6329L Integrated Load Switch Datasheet
What is the input voltage range?
The input voltage range is from 2.5V to 8V.
From: Fairchild Semiconductor FDC6329L Integrated Load Switch Datasheet