POWER INTEGRATIONS RDK-851 Datasheet & Stock

50W high voltage brushless DC (BLDC) motor for fan application. The 3-phase inverter uses BridgeSwitch (BRD1260C). This solution offers >93% efficiency requires no heat sink and is designed for 270VDC – 365VDC input, 50W continuous inverter output power and 0.22A continuous motor RMS current. The design incorporates a complete inverter stage with a control input interface to facilitate various control schemes with the addition of a system sensing input, instantaneous phase current output signals from each BridgeSwitch device, a status communication bus output and an optional input for device external-bias operation. PCB size customized for inverter fan designs (88mm diameter round shaped PCB in double-sided layout).




BridgeSwitch high-voltage half-bridge motor driver

Integrated 600V FREDFETs with ultra-soft, fast recovery diodes

Three-phase inverter design for high-voltage BLDC fan applications up to 50W

Fully self-biased operation on the BridgeSwitch devices with an on-board external bias option

Instantaneous phase current output signal on each BridgeSwitch device

Single wire status update communication bus, device over-temperature protection

External system sensing input

Integrated high-side and low-side cycle-by-cycle current limit on each BridgeSwitch devices

Supports trapezoidal and sinusoidal commutation control schemes

High voltage bus monitor with four undervoltage threshold and one overvoltage threshold




Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.