Texas Instruments DRV8323 | Demoboard TIDA-00774

Beschreibung

The TIDA-00774 is a 1kW drive for a three-phase brushless DC (BLDC) motor in power tools operating from a 5-cell Li-ion battery with a voltage up to 21 V. The design is a 65mm x 60mm compact drive, implementing sensor-based trapezoidal control. The design takes advantage of TI's MOSFET Power Block technology, which integrates two FETs in half-bridge configuration into a single SON 5x6 package, enabling very high power density. The design uses two Power Blocks in parallel and delivers 50-ARMS continuous (120-A peak for 3 second, 160-A peak for 1 second) winding current. The MOSFET power block with minimum parasitic inductance and the current controlled gate driver with slew rate control helps in effective MOSFET paralleling and reduces switching spikes. The current sensing is done by monitoring MOSFET VDS. The board provides cycle by cycle over current and short circuit protection.

Eigenschaften

Remark: Bom and Design Guide Added with Schematic Pdf..

• 1-kW Drive for BLDC Motor Supporting Sensor-Based Trapezoidal Control
• Designed to Operate From 6 to 21 V
• Continuous Output Current up to 50-ARMS
• Peak Current Capability of 120 A for 3 Secondsand 160 A for 1 Second
• Small PCB Form Factor of 65-mm×60-mm Using40-V/400-APEAK, 1-mΩ RDS_ON, SON5×6 PackageHalf-Bridge Power Blocks
• 18-V/680-W, 33-ARMS Without Heat Sink
• Motor Current Sensing by Monitoring the VDS ofMOSFETs, Enables Elimination of Shunt Resistor
• Cycle-by-Cycle Overcurrent and Motor StallCurrent Non-Latching Limit and Short-Circuit LatchProtection by VDS Sensing
• Shoot-Through, Undervoltage, Over-Temperature,and Blocked Rotor Protection
• Effective MOSFET Paralleling With ExcellentDynamic Current Sharing
• Option for Single PWM Control
• Operating Ambient: –20°C to 55°C

Typische Anwendungen

• E-Bikes
• Cordless Power Tools, Cordless Garden Tools

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers