IRF7946PBF datasheet(8/12 Pages) IRF

Teilenummer	IRF7946PBF

Bauteilbeschribung	DirectFETPower MOSFET

Download	12 Pages

Scroll/Zoom	100%

Hersteller	IRF [International Rectifier]

Direct Link	http://www.irf.com

Logo

8 / 12 page

IRF7946PbF

8

www.irf.com

Fig 23a. Switching Time Test Circuit

Fig 23b. Switching Time Waveforms

Fig 22b. Unclamped Inductive Waveforms

Fig 22a. Unclamped Inductive Test Circuit

tp

V(BR)DSS

IAS

RG

IAS

0.01



tp

D.U.T

L

VDS

+

- VDD

DRIVER

A

15V

20V

VGS

Fig 24a. Gate Charge Test Circuit

Fig 24b. Gate Charge Waveform

Vds

Vgs

Id

Vgs(th)

Qgs1 Qgs2

Qgd

Qgodr

Fig 22.

Peak Diode Recovery dv/dt Test Circuit for N-Channel

HEXFET® Power MOSFETs

Circuit Layout Considerations

 Low Stray Inductance

Ground Plane

Low Leakage Inductance

Current Transformer

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=10V

VDD

ISD

Driver Gate Drive

D.U.T. ISD Waveform

D.U.T. VDS Waveform

Inductor Curent

D =

P.W.

Period

* VGS = 5V for Logic Level Devices

*

+

-

+

-

RG

VDD

dv/dt controlled by RG

Driver same type as D.U.T.

ISD controlled by Duty Factor "D"

D.U.T. - Device Under Test

D.U.T

Inductor Current

D.U.T.

VDS

ID

IG

3mA

VGS

.3

F

50K



.2

F

12V

Current Regulator

Same Type as D.U.T.

Current Sampling Resistors

+

-

VDS

90%

10%

VGS

td(on)

tr

td(off) tf

VDS

Pulse Width µs

Duty Factor 

RD

VGS

RG

D.U.T.

10V

+

- VDD

VGS

IRF7946PBF Datenblatt(PDF) 8 Page - International Rectifier

IRF7946PBF Datenblatt(HTML) 8 Page - International Rectifier

Ähnliche Teilenummer - IRF7946PBF

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12

Datenblatt Download

Link URL