Dmn3051ldm – Diodes DMN3051LDM User Manual

Page 3

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DMN3051LDM

Document number: DS31523 Rev. 3 - 2

3 of 5

www.diodes.com

November 2009

© Diodes Incorporated

DMN3051LDM




Fig. 3 Typical On-Resistance

vs. Drain Current and Gate Voltage

I , DRAIN CURRENT (A)

D

R

,

DRAIN-

S

OURCE ON-

R

E

S

IS

T

A

NCE (

)

DS

(O

N)

Ω

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

0

1

2

3

4

5

6

V

= 10V

GS

V

= 4.5V

GS

I , DRAIN CURRENT (A)

Fig. 4 Typical Drain-Source On-Resistance

vs. Drain Current and Temperature

D

R

, D

R

AI

N

-S

O

U

R

C

E

O

N

-R

ESI

S

T

A

N

C

E (

)

DS

(O

N)

Ω

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.10

0

1

2

3

4

5

6

T = -55°C

A

T = 25°C

A

T = 85°C

A

T = 125°C

A

T = 150°C

A

Fig. 5 On-Resistance Variation with Temperature

-50

-25

0

25

50

75

100

125 150

T , JUNCTION TEMPERATURE (°C)

J

R

, D

R

AIN-

T

O

-S

OURC

E

RESI

ST

ANCE (

N

O

R

M

A

L

IZ

E

D)

DS

(O

N)

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

V

= 4.5V

I = 5A

GS

D

V

= 10V

I = 5.8A

GS

D

C, CAP

A

CIT

A

NC

E

(p

F

)

Fig. 6 Typical Capacitance

V

, DRAIN-SOURCE VOLTAGE (V)

DS

0

5

10

15

20

25

30

C

iss

C

oss

C

rss

V

,

G

A

TE

T

H

R

E

SH

O

L

D

VO

L

T

AG

E

(

V

)

GS

(T

H

)

Fig. 7 Gate Threshold Variation vs. Ambient Temperature

T , AMBIENT TEMPERATURE (°C)

A

0

0.5

1

1.5

2

2.5

3

-50

-25

0

25

50

75

100

125 150

I = 250µA

D

V

, SOURCE-DRAIN VOLTAGE (V)

SD

I,

S

O

U

R

C

E

C

U

R

R

EN

T

(A

)

S

Fig. 8 Diode Forward Voltage vs. Current

0.0001

0.001

0.01

0.1

1

10

0.1

0.3

0.5

0.7

0.9

1.1

T = -55°C

A

T = 25°C

A

T = 85°C

A

T = 125°C

A

T = 150°C

A

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