17

package type need to be modified for the EL2150 and

EL2157 to remain in the safe operating area.

The maximum power dissipation allowed in a package is

determined according to [1]:

where:

The maximum power dissipation actually produced by an IC

is the total quiescent supply current times the total power

supply voltage, plus the power in the IC due to the load, or

[2]

where:

various loads and output voltages according to [3]:

for various output voltage swings for the SO package. The

PD

MAX

T

θ

JA

---------------------------------------------

=

PD

MAX

V

S

I

SMAX

×

V

()

V

OUT

R

L

----------------

×

+

=

V

S

R

L

T

()

×

θ

JA

----------------------------------------------------------------

V

OUT

()

2

+

I

s

R

L

×

() V

OUT

+

-----------------------------------------------------------------------------------------------

=

FIGURE 11.

Single Supply Voltage

FIGURE 12.

Single Supply Voltage

EL2150, EL2157