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This literature is subject to all applicable copyright laws and is not for resale in any manner.FAN8831 Sinusoidal Piezoelectric Actuator Drive with Step-Up DC-DC Converter December 2014 FAN8831 Sinusoidal Piezoelectric Actuator Driver with Step-Up DC-DC Converter Features Description The FAN8831 is a single-chip piezoelectric actuator Step-Up DC-DC Converter driver consisting of step-up DC-DC converter with Integrated Step-up Power Switch up to 36 V integrated 36 V boost switch and a full-bridge output stage. The device is capable of driving a Piezo bi- Wide Operating Voltage Range of 2.7 to 5.5 V directionally at 120 V peak-to-peak from a single 3 V Adjustable Step-up Output Voltage lithium cell. The step-up DC-DC converter operates in Critical Conduction Mode (CRM) and is optimized to Adjustable Step-up Current Limit work in a coupled inductor configuration to provide Zero Current Detector (ZCD) output voltages in excess of 60 V. Over-voltage protection, over-current protection and thermal Internal Soft-Start shutdown are all provided. An internal ready is used to Built-in Protection Circuit enable the full-bridge gate driver when step-up DC-DC converter output voltage reaches the proper level with Over Voltage Protection (OVP) hysteresis. Thermal Shutdown (TSD) The boost voltage is set using external resistors, and Piezo Actuator Driver step-up current limit is programmable via the external Integrated Full-Bridge Switches (V =75 V) DS resistor at OCP pin. Digitally Implemented Sine Modulator The output H-bridge features four integrated 75 V P and N-channel for sine wave drive of the Piezo actuator. Package Information Small 4.0 mm 4.0 mm MLP Applications Piezo Actuator Ordering Information Operating Part Number Package Packing Method Temperature Range FAN8831MPX -40C to +125C 24-Lead, MLP Tape & Reel 2014 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN8831 Rev. 1.0