GUI para el módulo de evaluación (EVM)
DRV8308
Control sinusoidal con sensor de 42 V máx., controlador de puerta BLDC trifásico con SPI
Hoja de datos
DRV8308
- Three-Phase Brushless DC Motor Controller
- Digital Closed-Loop Speed Control with Programmable Gain and Filters
- Drives 6 N-Channel MOSFETs With Configurable 10- to 130-mA Gate Drive
- Integrated Commutation from Hall Sensors
- Timing Can Be Advanced/Delayed
- 120° or 180°-Sinusoidal Current Control
- Single Input Controls Motor Speed
- Operating Supply Voltage 8.5 to 32 V
- Flexible Configuration Methods
- Read Internal Non-Volatile Memory
- Read External EEPROM
- Write SPI
- Configurable Motor Current Limiter
- 5-V Regulator for Hall Sensors
- Low-power Standby Mode
- Integrated Overcurrent, Overvoltage, and Overtemperature Protection
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, and overtemperature.
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Documentación técnica
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Ver todo 9 | Tipo | Título | Fecha | ||
|---|---|---|---|---|
| * | Data sheet | DRV8308 Brushless DC Motor Controller datasheet (Rev. B) | PDF | HTML | 13 nov 2017 |
| Application note | Best Practices for Board Layout of Motor Drivers (Rev. B) | PDF | HTML | 14 oct 2021 | |
| Application note | Hardware Design Considerations for an Electric Bicycle using BLDC Motor (Rev. B) | 23 jun 2021 | ||
| Application note | System Design Considerations for High-Power Motor Driver Applications | PDF | HTML | 22 jun 2021 | |
| Application note | Understanding Smart Gate Drive (Rev. D) | 01 mar 2021 | ||
| White paper | Power Electronics in Motor Drives: Where is it? (Rev. A) | 01 oct 2019 | ||
| Application note | Hardware Design Considerations for an Efficient Vacuum Cleaner Using a BLDC Moto (Rev. B) | PDF | HTML | 06 mar 2019 | |
| EVM User's guide | DRV8308 User's Guide (Rev. F) | 12 sep 2018 | ||
| Technical article | Simplifying gate driver design for brushed DC motors | PDF | HTML | 30 jun 2015 |
Diseño y desarrollo
Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.
Placa de evaluación
DRV8308EVM — Módulo de evaluación DRV8308 para precontroladores de motor CC sin escobillas y trifásico
The three-phase brushless motor pre-driver DRV8308 drives sensored brushless DC and brushless AC (BLAC) - often referred to as permanent magnet synchronous (PMSM). Aimed at 12V and 24V motors, this configurable pre-driver features an integrated digital speed loop with advanced commutation (...)
Guía del usuario: PDF
Diseños de referencia
TIDA-00197 — Diseño de referencia del motor outrunner de CC de 24 V sin escobillas controlado por velocidad
This advanced motor implements closed-loop speed control to maintain an exact RPM across the load torque profile. The magnetic rotor position is sensed by the DRV5013 Hall-effect sensors, and the DRV8308 controller decides when to drive the CSD88537ND FETs that energize the coils. No (...)
| Paquete | Pasadores | Descargar |
|---|---|---|
| VQFN (RHA) | 40 | Ver opciones |
Pedidos y calidad
Información incluida:
- RoHS
- REACH
- Marcado del dispositivo
- Acabado de plomo/material de la bola
- Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
- Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
- Contenido del material
- Resumen de calificaciones
- Monitoreo continuo de confiabilidad
Información incluida:
- Lugar de fabricación
- Lugar de ensamblaje
Soporte y capacitación
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