IRF7855TRPBF Datasheet, PDF (4/8 Pages) International Rectifier – Primary Side Switch in Bridge Topology in Isolated DC-DC Converters

IRF7855PbF
10000
1000
VGS = 0V, f = 1 MHZ
Ciss = C _gs + Cgd, C _ds SHORTED
Crss = Cgd
Coss = Cds + Cgd
Ciss
Coss
Crss
100
1
10
100
VDS, Drain-to-Source Voltage (V)
Fig 5. Typical Capacitance vs.
Drain-to-Source Voltage
12.0
ID= 7.2A
10.0
VDS= 48V
VDS= 30V
8.0
VDS= 12V
6.0
4.0
2.0
0.0
0
5
10 15 20 25 30
QG, Total Gate Charge (nC)
Fig 6. Typical Gate Charge vs.
Gate-to-Source Voltage
100
TJ = 150°C
10
1
TJ = 25°C
0.1
0.2
VGS = 0V
0.4
0.6
0.8
1.0
1.2
VSD, Source-to-Drain Voltage (V)
Fig 7. Typical Source-Drain Diode
Forward Voltage
4
1000
100
10
1
OPERATION IN THIS AREA
LIMITED BY RDS(on)
100µsec
1msec
0.1 TA = 25°C
Tj = 150°C
Single Pulse
0.01
0
1
10
10msec
100
VDS, Drain-to-Source Voltage (V)
1000
Fig 8. Maximum Safe Operating Area
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