FSB50550BB

Power Driver Modules Overview

The FSB50550BB is a Motion SPM 5 series Intelligent Power Module (IPM) designed for AC Induction, BLDC, and PMSM motor drives. It integrates a 500 V, 3 A three-phase inverter with optimized gate drivers using FRFET technology. The module features a 21-pin PowerDIP package with bias pins and provides an isolation rating of 1500 Vrms. Key electrical parameters include a drain-source breakdown voltage of 500 V, a continuous drain current of 3.0 A at 25°C case temperature, and a recommended operating supply voltage range of 300 V to 400 V.

Power Driver Modules Feature Summary

• Integrates optimized gate drive for built-in MOSFETs to minimize electromagnetic interference and switching losses.
• Includes multiple on-module protection features such as under-voltage lockouts and thermal monitoring via HVIC temperature sensing.
• Features separate open-source MOSFET terminals for each phase to support diverse control algorithms and three-phase current sensing.

Power Driver Modules Applications

• Three-phase inverter driver for small power AC motor drives
• Brushless DC (BLDC) motor control systems
• Permanent Magnet Synchronous Motor (PMSM) applications

Power Driver Modules Procurement Notes

Verify the specific ordering suffix 'BB' against the manufacturer's latest documentation to ensure correct assembly code and lot run traceability. Confirm that the required packing type matches the standard rail quantity of 15 units. Ensure compliance with RoHS3 specifications and check for any relevant Product Change Notices or End-of-Life announcements prior to finalizing procurement plans.

Power Driver Modules Selection Notes

Select this component when designing compact motor drive systems requiring integrated protection and low EMI. The module supports active-high logic interfaces compatible with 3.3 V and 5 V microcontrollers. Consider the thermal resistance characteristics and the need for external bootstrap capacitors when evaluating PCB layout constraints and heat dissipation requirements for the target application environment.

Power Driver Modules Part Context

This device belongs to the Motion SPM 5 series from onsemi, which focuses on high-performance inverter output stages. The series utilizes FRFET technology to enhance efficiency and reduce system complexity by integrating gate drivers and protection circuits directly within the module, facilitating easier implementation in various motor control architectures.

Power Driver Modules Replacement Considerations

FSB50550BL: A similar module in the same series but housed in a 23-PowerDIP package.

Power Driver Modules FAQ

How does the module handle current sensing?

The FSB50550BB provides separate open-source pins from the low-side MOSFETs for each phase, allowing for flexible three-phase current sensing configurations.

What logic levels are supported by the input interface?

The module features an active-high interface with Schmitt-trigger inputs, making it compatible with both 3.3 V and 5 V logic signals.

Is automatic shutdown provided based on temperature?

No, the built-in HVIC temperature sensing outputs a voltage signal (VTS) for monitoring purposes only; it does not automatically shut down the MOSFETs.