MP6545A Datasheet | Monolithic Power Systems

DESCRIPTION The MP6545A is a three-phase power stage IC designed to drive brushless DC (BLDC) motors or other loads. The MP6545A operates across a 4.5V to 45V input voltage (VIN) range. It can deliver an output current (IOUT) up to 2.5A per phase, depending on the ambient temperature (TA) and PCB layout. The MP6545A has unique, independent GND pins for each half-bridge. These GND pins make it possible to provide current measurement via an external shunt resistor for different application requirements. Internal safety and diagnostic features include over-current protection (OCP), input overvoltage protection (OVP), input under-voltage lockout (UVLO), and thermal shutdown. The MP6545A has separate high-side (HS) and low-side (LS) input pins for each output pin. The MP6545A is available in QFN-28 (4mmx5mm) and TSSOP-28EP packages. FEATURES - 4.5V to 45V Operating Input Voltage (VIN) Range - 2.5A Maximum Output Current (IOUT_MAX) - Three-Channel Half-Bridge (HB) Driver - Low 150mΩ On Resistance (RDS(ON)) per MOSFET - Protection Functions Include: o Over-Current Protection (OCP) o Over-Voltage Protection (OVP) o Under-Voltage Lockout (UVLO) o Over-Temperature (OT) Shutdown o Fault Indication Output - Available in QFN-28 (4mmx5mm) and TSSOP-28EP Packages APPLICATIONS - Brushless DC (BLDC) Motors - Laser Printers and Copiers - Textile Machines All MPS parts are lead-free, halogen-free, and adhere to the Ro HS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. TYPICAL APPLICATION VREG n FAULT VIN n SLEEP n RESET VIN OUT1 HS1 OUT2 µC LS1 MP6545A HS2 LS2 HS3 LS3 OUT3 LSS1 External Sense Resistor (Optional) LSS2 LSS3 MP6545A Rev. 1.1 Monolithic...