SI4420DY datasheet(1/1 Pages) VISHAY

Part #	SI4420DY

Description	N-Channel, 30-V (D-S) MOSFET

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Manufacturer	VISHAY [Vishay Siliconix]

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Specification Comparison

Vishay Siliconix

Document Number 74060

www.vishay.com

06-May-05

Si4420BDY vs. Si4420DY

Description:

N-Channel, 30-V (D-S) MOSFET

Package:

SO-8

Pin Out:

Identical

Part Number Replacements:

Si4420BDY-T1-E3 Replaces Si4420DY-T1-E3

Si4420BDY-T1-E3 Replaces Si4420DY-T1

Summary of Performance:

The Si4420BDY is the replacement to the original Si4420DY; both parts perform identically, including limits to the parametric

tables below.

ABSOLUTE MAXIMUM RATINGS (TA = 25oC UNLESS OTHERWISE NOTED)

Parameter

Symbol

Si4420BDY

Si4420DY

Unit

Drain-Source Voltage

VDS

30

Gate-Source Voltage

VGS

+20

V

TA = 25°C

13.5

Continuous Drain Current

TA = 70°C

ID

10.8

Pulsed Drain Current

IDM

50

Continuous Source Current

(MOSFET Diode Conduction)

IS

2.3

2.7

A

TA = 25°C

2.5

3.0

Power Dissipation

TA = 70°C

PD

1.6

1.9

W

Operating Junction & Storage Temperature Range

Tj & Tstg

-55 to 150

°C

Maximum Junction-to-Ambient

RthJA

50

42

°C/W

SPECIFICATIONS (TJ = 25OC UNLESS OTHERWISE NOTED)

Si4420BDY

Si4420DY

Parameter

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

Static

Gate-Threshold Voltage

VGS(th)

1.0

3.0

1.0

2.0

3.0

V

Gate-Body Leakage

IGSS

+100

nA

Zero Gate Voltage Drain Current

IDSS

1

µA

On-State Drain Current

VGS = 10 V

ID(on)

30

A

VGS= 10 V

0.007

0.0085

0.0075

0.009

Drain-Source On-Resistance

VGS = 4.5 V

rDS(on)

0.009

0.011

0.010

0.013

Ω

Forward Transconductance

gfs

50

S

Diode Forward Voltage

VSD

0.75

1.1

NS

1.1

V

Dynamic

Total Charge

Qg

16

25

29

45

Total Gate Charge

Qgt

31

50

58

90

Gate-Source Charge

Qgs

6.6

12

Gate-Drain Charge

Qgd

4.0

9.5

nC

Gate Resistance

Rg

0.5

1.0

1.5

0.5

2.1

4.6

Ω

Switching

td(on)

15

25

22

35

Turn-On Time*

tr

11

18

13

20

td(off)

40

60

82

125

Turn-Off Time*

tf

12

20

30

45

Source-Drain Reverse Recovery Time

trr

30

50

75

ns

NS denotes parameter not specified

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