The BridgeSwitch family of integrated half-bridges dramatically simplifies the development and production of high-voltage inverter driven single- or multi-phase PM and BLDC motor drives. Superior efficiency and distributed thermal footprint architecture of BridgeSwitch motor drives eliminates the need for a heatsink, reducing system cost and weight. Built-in hardware motor overcurrent protection enhances safety and reliability.
Applications
- Single- or multi-phase high-voltage PM and BLDC motor drives
- Appliances including dish washers and refrigerators
- Condenser fans in high efficiency air conditioners
Features
- Fully integrated half-bridge stage with up to 99.2% efficiency
- 600 V N-channel power FREDFETs
- Accurate instantaneous phase current information output (BRD126X)
- Self-biased low-side and high-side drivers
- Small footprint surface mount inSOP-24C package
- Controlled FREDFET switching speed reduces EMI
- Adustable cycle-by-cycle current limit for both FREDFETs
- Internal dual level thermal overload protection
- Self-configuring system level monitoring input
- Adaptive dead time
- Simultaneous conduction lockout protection
Key Components
- Two high-voltage N-channel power FREDFETs with low and high-side drivers
- Internal fault protection functions and external system level monitoring circuitry
- Bi-directional bussed single wire status interface
- Small footprint surface mount inSOP-24C package
Benefits
- Up to 99.2% efficient — no heatsinks
- Fully integrated half-bridge stage
- Hard-wired protection simplifies software
- Device and system diagnostic through single-wire bus
- Works with popular motor control microcontrollers
Schematic
BridgeSwitch IC in an InSOP-24C Package
Video:
- Motor-Expert Software Streamlines BridgeSwitch Motor Drive Designs
- PI Webinar - BridgeSwitch Motor Drivers