Dmn31d5ufz – Diodes DMN31D5UFZ User Manual

Page 4

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DMN31D5UFZ

Document number: DS36843 Rev. 2 - 2

4 of 6

www.diodes.com

June 2014

© Diodes Incorporated

DMN31D5UFZ

NEW PROD

UC

T

ADVANCED INFORMATION

NEW PROD

UC

T



T , JUNCTION TEMPERATURE ( C)

Figure 7 Gate Threshold Variation vs. Ambient Temperature

J

°

V,

G

A

T

E

T

H

R

ES

H

O

LD

V

O

LT

A

G

E (

V

)

GS

(t

h

)

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

-50

-25

0

25

50

75

100

125 150

I = 1mA

D

I = 250µA

D

V , SOURCE-DRAIN VOLTAGE (V)

SD

Figure 8 Diode Forward Voltage vs. Current

I,

S

O

U

R

C

E

C

U

R

R

EN

T

(A

)

S

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0

0.3

0.6

0.9

1.2

1.5

T = 85°C

A

T = 125°C

A

T = 150°C

A

T = -55°C

A

T = 25°C

A

V , DRAIN-SOURCE VOLTAGE (V)

DS

Figure 9 Typical Junction Capacitance

C

, J

U

N

C

T

IO

N

C

A

P

A

C

IT

AN

C

E (

p

F)

T

1

10

100

0

5

10

15

20

25

30

f = 1MHz

C

iss

C

oss

C

rss

Q

(nC)

g

, TOTAL GATE CHARGE

Figure 10 Gate Charge

V

G

AT

E

T

H

R

ES

H

O

LD

V

O

LTA

G

E (

V

)

GS

0

2

4

6

8

10

0

0.1 0.2

0.3 0.4 0.5 0.6

0.7 0.8 0.9

V

= 15V

I =

A

DS

D

200m

t1, PULSE DURATION TIME (sec)

Figure 11 Transient Thermal Resistance

r(

t)

, T

R

A

N

S

IE

N

T T

H

E

R

M

A

L

R

E

S

IS

TA

N

C

E

R

(t) = r(t) * R

R

= 313°C/W

Duty Cycle, D = t1/ t2

θ

θ

θ

JA

JA

JA

D = 0.5

D = 0.7

D = 0.9

D = 0.3

D = 0.1

D = 0.05

D = 0.02

D = 0.01

D = 0.005

D = Single Pulse

0.001

0.01

0.1

1

0.000001 0.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

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