MP103FC Apex Microtechnology

MP103 RoHS Power Amplifier COMPLIANT FEATURES Low Cost Integrated Solution Output Current > 10A within SOA Internal Power Dissipation 35W Per Channel 167V/s Slew Rate APPLICATIONS Piezoelectric Actuation For Ink Jet Printer Nozzles DESCRIPTION The MP103 is a high voltage, high output current dual channel operational amplifier for driving capacitive loads such as piezo devices use in ink jet printing applications. The MP103 utilizes proprietary ICs combined with discrete semiconductor and passive elements on a thermally conductive insulated metal substrate, delivering very high power from a compact module. The amplifier gain is fixed at 65 V/V when the feedback pin is connected to the V pin. Internal compensation provides optimum slew rate and ensures stability. OUT The only external components required are the current limit resistors R , a series isolation resistor R LIM S (when driving a capacitative load) and the power supply bypass capacitors. Figure 1: Equivalent Schematic Feedback A +V S +V S +V S IL +V AUX IL IL IN A Out A -V S -V S -5V -V S +V Feedback B S +V S +V S IL IL IL IN B Out B -V S -V S -V S Apex Microtechnology Inc. JAN 2018 www.apexanalog.com All rights reserved MP103U Rev EMP103 TYPICAL CONNECTION Figure 2: Typical Connection +V +V AUX S 10F 100nF 100nF R CL +V S +V AUX IN V CL OUT OUT MP103 GND FDBK R L R FEEDBACK -V S 100nF 10F -V S 2 MP103U Rev E