DRV8308RHAT Part Information

Details for DRV8308RHAT by Texas Instruments

Electronic & Electrical Components > Semiconductors - ICs > Driver & Interface ICs

Part Description

The DRV8308 controls sensored brushless DC motors with advanced features and a simple input interface. As a predriver, it drives the gates of 6 external N-Channel MOSFETs with a configurable current of 10mA to 130mA for optimal switching characteristics. The 3 motor phases are commutated according to the Hall sensor inputs. Once the motor reaches a consistent speed, the DRV8308 uses just 1 Hall sensor to minimize jitter caused by sensor mismatch. The Hall signal-to-drive timing can be advanced or delayed in 0.1% increments to optimize power efficiency. An optional 180° commutation mode drives sinusoidal current through the motor and minimizes audible noise and torque ripple. Peak motor current can be controlled by sizing a sense resistor. The DRV8308 achieves closed-loop speed control to spin motors to a precise RPM across a wide range of load torques. The system matches motor speed—generated from an FG trace or the Hall sensors—to the reference frequency on pin CLKIN. The DRV8308 can also drive motors open-loop using a duty cycle command, from either a clock or register setting. An assortment of protection features bolster system robustness, as the DRV8308 handles and reports overcurrent, overvoltage, undervoltage, overtemperature, and locked rotors.

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Part Features

  • 5-V Regulator for Hall Sensors
  • Configurable Motor Current Limiter
  • Drives 6 N-Channel MOSFETs with Configurable 10- to 130-mA Gate Drive
  • Flexible Configuration Methods u2013 Read Internal Non-Volatile Memory u2013 Read External EEPROM u2013 Write SPI
  • Integrated Commutation from Hall Sensors u2013 Timing Can Be Advanced/Delayed u2013 120u00b0 or 180u00b0-sinusoidal current control u2013 Single Input Controls Motor Speed
  • Integrated Overcurrent, Overvoltage, and
  • Locked Rotor Detection and Restart
  • Low-power Standby Mode
  • Operating Supply Voltage 8.5 to 32 V
  • Three-Phase Brushless DC Motor Controller u2013 Digital Closed-Loop Speed Control with Programmable Gain and Filters

Part Specifications

Motor Type Three Phase DC Brushless
No. of Outputs 3Outputs
Output Current -
Output Voltage -
Driver Case Style VQFN
No. of Pins 40Pins
Supply Voltage Min 8.5V
Supply Voltage Max 32V
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • MOTOR DRIV, 3-PHASE DC BRUSHLESS, VQFN-4; Motor Type:Three Phase DC Brushless; No. of Outputs:3Outputs; Output Current:-; Output Voltage:-; Driver Case Style:VQFN; No. of Pins:40Pins; Supply Voltage Min:8.5V; Supply Voltage Max:32V; RoHS Compliant: Yes | Newark Electronics
  • 42-V max sensored sinusoidal control, 3-phase BLDC gate driver with SPI | Texas Instruments

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