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SIHF840LCST Datasheet(PDF) 7 Page - Vishay Siliconix

Part No. SIHF840LCST
Description  Power MOSFET
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Maker  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
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SIHF840LCST Datasheet(HTML) 7 Page - Vishay Siliconix

   
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Document Number: 91068
www.vishay.com
S-Pending-Rev. A, 02-Jun-08
7
IRF840LCS, IRF840LCL, SiHF840LCS, SiHF840LCL
Vishay Siliconix
Fig. 14 - For N-Channel
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see http://www.vishay.com/ppg?91068.
P.W.
Period
dI/dt
Diode recovery
dV/dt
Ripple
≤ 5 %
Body diode forward drop
Re-applied
voltage
Reverse
recovery
current
Body diode forward
current
VGS = 10 V*
VDD
ISD
Driver gate drive
D.U.T. ISD waveform
D.U.T. VDS waveform
Inductor current
D =
P.W.
Period
+
-
+
+
+
-
-
-
* VGS = 5 V for logic level devices
Peak Diode Recovery dV/dt Test Circuit
VDD
• dV/dt controlled by R
G
• Driver same type as D.U.T.
• ISD controlled by duty factor "D"
• D.U.T. - device under test
D.U.T
Circuit layout considerations
• Low stray inductance
• Ground plane
• Low leakage inductance
current transformer
RG


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