IRF840A Datasheet, PDF (1/8 Pages) International Rectifier – Power MOSFET(Vdss=500V, Rds(on)max=0.85ohm, Id=8.0A)

PD- 91900A
SMPS MOSFET
IRF840A
Applications
l Switch Mode Power Supply ( SMPS )
l Uninterruptable Power Supply
l High speed power switching
HEXFET^® Power MOSFET
V_DSS
500V
Rds(on) max I_D
0.85Ω
8.0A
Benefits
l Low Gate Charge Qg results in Simple
Drive Requirement
l Improved Gate, Avalanche and dynamic
dv/dt Ruggedness
l Fully Characterized Capacitance and
Avalanche Voltage and Current
l Effective Coss Specified (See AN1001)
TO-220AB ^{G D S}
Absolute Maximum Ratings
I_D @ T_C = 25°C
I_D @ T_C = 100°C
I_DM
P_D @T_C = 25°C
V_GS
dv/dt
T_J
T_STG
Parameter
Continuous Drain Current, V_GS @ 10V
Continuous Drain Current, V_GS @ 10V
Pulsed Drain Current 
Power Dissipation
Linear Derating Factor
Gate-to-Source Voltage
Peak Diode Recovery dv/dt ƒ
Operating Junction and
Storage Temperature Range
Soldering Temperature, for 10 seconds
Mounting torqe, 6-32 or M3 screw
Max.
8.0
5.1
32
125
1.0
± 30
5.0
-55 to + 150
300 (1.6mm from case )
10 lbf•in (1.1N•m)
Units
A
W
W/°C
V
V/ns
°C
Typical SMPS Topologies:
l Two Transistor Forward
l Haft Bridge
l Full Bridge
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