apex microtechnology corporation ? telephone (520) 690-8600 ? fax (520) 888-3329 ? orders (520) 690-8601 ? email prodlit@apexmicrotech.com 1 introduction fast and easy breadboarding of circuits using the pa241df is possible with the EK13 evaluation kit. the ampli?er may be surface mounted directly to the pc board. the pa241df is soldered to a 2-square inch area of foil on the pc board for heat sinking. this foil heat sink is connected toCvs. connec - tions are provided for required power supply bypassing, phase compensation components, and a current limit resistor. a large area for component mounting provides ?exibility and makes a multitude of circuit con?gurations possible. parts list part # description quantity eval15 pc board 1 ox7r105kwn 1f ceramic capacitor 1 hs24 heatsink 1 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?????????????????????????? ???? high voltages will be present. use caution in handling and probing when power is applied. caution ?????? ???????? ???? ???? assembly the pa241df is a surface mount device and should be assembled to the eval15 pc board using surface mount processes. solder paste may be dispensed or screen-printed on the dut pads. the heat tab on the back of the pa241df provides maximum heat dissipation capabilities when soldered to the pcb metalization that runs under the dut on the dut side of the board. solder should be applied here also. for prototype purposes, the tab can be thermally connected to the pcb metalization using thermal grease. the pa241df and hs24 should be re?owed to the pcb using a solder re?ow furnace. if this is not available, a heat plate capable of solder re?ow temperatures may be used. or, though time consuming, the leads may be soldered individually to the pcb with a soldering iron. in this case the use of thermal grease under the heat tab is recommended instead of solder for the thermal connection.
apex microtechnology corporation ? 5980 north shannon road ? tucson, arizona 85741 ? usa ? applications hotline: 1 (800) 546-2739 2 evaluation kit for pa241df pin-out EK13 ??? ?????????? ???????????????????????????????????? ????????????? ???????????? ???????????????????? ??????? this data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. all speci?cations are subject to change without notice. EK13u rev c november 2004 ? 2004 apex microtechnology corp.
|
