EUP3595

DS3595 Ver1.0 Feb. 2007

8

()

JA

A

JMax

DMax

/

T

T

P

θ

−

=

()

(

)

LEDX

LEDX

IN

IN

DISS

I

V

N

I

V

P

×

−

×

=

Power Dissipation

The maximum allowable power dissipation that this

package is capable of handling can be determined as

follows:

Where T is the maximum junction temperature, T is the

-to-ambient thermal resistance of the specified package.

The EUP3595 come in the TDFN-8 package that has a

the layout of the PC board. The actual power dissipated

by the EUP3595 follows the equation:

supplied to the LEDX diode by the EUP3595. Power

dissipation must be less than that allowed by the

package. Please refer to the Absolute Maximum Rating

of the EUP3595.

Input Capacitor Selection

The EUP3595 is designed to run off of a fixed input

voltage. Depending on the stability and condition of

this voltage rail, it may be necessary to add a small

input capacitor to help filter out any noise that may be

present on the line. In the event that filtering is needed,

surface mount multi-layer ceramic capacitors are

recommended. These capacitors are small and

inexpensive. A capacitance of 0.1µF is typically

sufficient.