BridgeSwitch Family
High-Voltage, Self-Powered, Half-bridge Motor Driver with Integrated Device Protection and System M...
BridgeSwitch Family
High-
Voltage, Self-Powered, Half-bridge Motor Driver with Integrated Device Protection and System Monitoring
Product Highlights
HV+
Highest Performance and Design Flexibility Fully integrated half-bridge stage with up to 98% efficiency
Eliminates external heat sink at rated continuous RMS current 600 V N-channel power FREDFETs
Ultra-soft, fast recovery diode Accurate instantaneous phase current information output (BRD126X)
Eliminates external sensing and amplification circuitry Self-biased low-side and high-side drivers
Eliminates need for auxiliary power supply Small footprint surface mount inSOP-24C package
Exposed pads enable heat sinking through PCB Controlled FREDFET switching speed reduces EMI
VDD
System MCU
HS BPH Drive
SM FAULT
/INH INL IPH BPL
LS Drive
& Control
ID SG
HD
XH HB
XL LS
BridgeSwitch
Enhanced Safety and Reliability Features
Adustable cycle-by-cycle current limit for both FREDFETs Fail-safe operation
Internal dual level thermal overload protection Self-configuring system level monitoring input
Four level DC bus under
voltage DC bus over
voltage System temperature
HV-
Figure 1. Typical 3-Phase Inverter Schematic (BRD126X).
PI-8314-100518
Adaptive dead time
Simultaneous conduction lockout protection Status Interface
BridgeSwitchTM
Bi-directional bussed open Drain single wire interface Reports status updates to system MCU
Successful power-up Internal over-current or temper...