PE45140 datasheet(5/12 Pages) PSEMI

Part #	PE45140

Description	UltraCMOS짰 Power Limiter 20 MHz?? GHz

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Manufacturer	PSEMI [Peregrine Semiconductor]

Direct Link	http://www.psemi.com

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5 / 12 page

Preliminary Specification

PE45140

Page 5 of 12

Document No. DOC-44014-3 │ www.psemi.com

Thermal Data

When limiting high power RF signals, the junction

temperature of the power limiter can rise

significantly.

Special consideration needs to be made in the

design of the PCB to properly dissipate the heat

away from the part and maintain the +270°C

maximum junction temperature.

It is recommended to use best design practices for

high power QFN packages: multi-layer PCBs with

thermal vias in a thermal pad soldered to the slug

of the package. Special care also needs to be

made to alleviate solder voiding under the part.

Table 5. Theta JC

Parameter

Min

Typ

Max

Unit

Theta JC

16

°C/W

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