Document
FQA34N25
October 2001
FQA34N25
250V N-Channel MOSFET
General Description
These N-Channel enhancement mode power field effect transistors are produced using Fairchild’s proprietary, planar, DMOS technology. This advanced technology has been especially tailored to minimize on-state resistance, provide superior switching performance, and withstand high energy pulse in the avalanche and commutation mode. These devices are well suited for high efficiency switching DC/DC converters and switch mode power supplies.
Features
• • • • • • 34A, 250V, RDS(on) = 0.085Ω @VGS = 10 V Low gate charge ( typical 60 nC) Low Crss ( typical 60 pF) Fast switching 100% avalanche tested Improved dv/dt capability
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TO-3P
FQA Series
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Absolute Maximum Ratings
Symbol VDSS ID IDM VGSS EAS IAR EAR dv/dt PD TJ, TSTG TL
TC = 25°C unless otherwise noted
Parameter Drain-Source Voltage - Continuous (TC = 25°C) Drain Current - Continuous (TC = 100°C) Drain Current - Pulsed
(Note 1)
FQA34N25 250 34 21.3 136 ± 30
(Note 2) (Note 1) (Note 1) (Note 3)
Units V A A A V mJ A mJ V/ns W W/°C °C °C
Gate-Source Voltage Single Pulsed Avalanche Energy Avalanche Current Repetitive Avalanche Energy Peak Diode Recovery dv/dt Power Dissipation (TC = 25°C)
700 34 24.5 4.8 245 1.96 -55 to +150 300
- Derate above 25°C Operating and Storage Temperature Range Maximum lead temperature for soldering purposes, 1/8" from case for 5 seconds
Thermal Characteristics
Symbol RθJC RθCS RθJA Parameter Thermal Resistance, Junction-to-Case Thermal Resistance, Case-to-Sink Thermal Resistance, Junction-to-Ambient Typ -0.24 -Max 0.51 -40 Units °C/W °C/W °C/W
©2001 Fairchild Semiconductor Corporation
Rev. A, October 2001
FQA34N25
Electrical Characteristics
Symbol Parameter
TC = 25°C unless otherwise noted
Test Conditions
Min
Typ
Max
Units
Off Characteristics
BVDSS ∆BVDSS / ∆TJ IDSS IGSSF IGSSR Drain-Source Breakdown Voltage Breakdown Voltage Temperature Coefficient Zero Gate Voltage Drain Current Gate-Body Leakage Current, Forward Gate-Body Leakage Current, Reverse VGS = 0 V, ID = 250 µA ID = 250 µA, Referenced to 25°C VDS = 250 V, VGS = 0 V VDS = 200 V, TC = 125°C VGS = 30 V, VDS = 0 V VGS = -30 V, VDS = 0 V 250 ------0.27 ------10 100 100 -100 V V/°C µA µA nA nA
On Characteristics
VGS(th) RDS(on) gFS Gate Threshold Voltage Static Drain-Source On-Resistance Forward Transconductance VDS = VGS, ID = 250 µA VGS = 10 V, ID = 17 A VDS = 40 V, ID = 17 A
(Note 4)
3.0 ---
-0.067 24
5.0 0.085 --
V Ω S
Dynamic Characteristics
Ciss Coss Crss Input Capacitance Output Capacitance Reverse Transfer Capacitance VDS = 25 V, VGS = 0 V, f = 1.0 MHz ---2110 465 60 2750 610 80 pF pF pF
Switching Characteristics
td(on) tr td(off) tf Qg Qgs Qgd Turn-On Delay Time Turn-On Rise Time Turn-Off Delay Time Turn-Off Fall Time Total Gate Charge Gate-Source Charge Gate-Drain Charge VDS = 200 V, ID = 34 A, VGS = 10 V
(Note 4, 5)
VDD = 125 V, ID = 34 A, RG = 25 Ω
(Note 4, 5)
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45 335 1.