AO4449

TYPICAL ELECTRICAL AND THERMAL CHARACTERISTICS

The AO4449 uses advanced trench technology to provide excellent RDS(ON), and ultra-low low gate charge. This device is suitable for use as a load switch or in PWM applications.

0.001

0.01

0.1

1

10

0.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Pulse Width (s)

Figure 12: Normalized Maximum Transient Thermal Impedance (Note F)

Single Pulse

D=T

T

T

on

T

P

D

In descending order

D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse

0.001

0.01

0.1

1

10

0.00001

0.0001

0.001

0.01

0.1

1

10

100

1000

Pulse Width (s)

Figure 12: Normalized Maximum Transient Thermal Impedance (Note F)

Single Pulse

D=T

T

T

on

T

P

D

In descending order

D=0.5, 0.3, 0.1, 0.05, 0.02, 0.01, single pulse

Rev 3: Nov 2011

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