DRV8305

ACTIVE

45-V max 3-phase smart gate driver with current shunt amplifiers & SPI 

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Product details

Parameters

Rating Catalog Control method External Control Architecture Gate Driver Control interface 6xPWM, 3xPWM, 1xPWM Gate drive (A) 1 Vs (Min) (V) 4.4 Vs ABS (Max) (V) 45 Features LDO, Current Sense Amplifier, SPI/I2C, Watchdog Timer, Smart Gate Drive Operating temperature range (C) -40 to 125 open-in-new Find other Brushless DC (BLDC) motor drivers

Package | Pins | Size

HTQFP (PHP) 48 81 mm² 9 x 9 open-in-new Find other Brushless DC (BLDC) motor drivers

Features

  • 4.4-V to 45-V Operating Voltage
  • 1.25-A and 1-A Peak Gate Drive Currents
  • Programmable High- and Low-Side Slew-Rate Control
  • Charge-Pump Gate Driver for 100% Duty Cycle
  • Three Integrated Current-Shunt Amplifiers
  • Integrated 50-mA LDO (3.3-V and 5-V Option)
  • 3-PWM or 6-PWM Input Control up to 200 kHz
  • Single PWM-Mode Commutation Capability
  • Supports Both 3.3-V and 5-V Digital Interface
  • Serial Peripheral Interface (SPI) for Device Settings and Fault Reporting
  • Thermally-Enhanced 48-Pin HTQFP
  • Protection Features:
    • Fault Diagnostics and MCU Watchdog
    • Programmable Dead-Time Control
    • MOSFET Shoot-Through Prevention
    • MOSFET VDS Overcurrent Monitors
    • Gate-Driver Fault Detection
    • Reverse Battery-Protection Support
    • Limp Home-Mode Support
    • Overtemperature Warning and Shutdown
open-in-new Find other Brushless DC (BLDC) motor drivers

Description

The DRV8305 device is a gate driver IC for three-phase motor-drive applications. The device provides three high-accuracy and temperature compensated half-bridge drivers, each capable of driving a high-side and low-side N-channel MOSFET. A charge pump driver supports 100% duty cycle and low-voltage operation. The device can tolerate load dump voltages up to 45-V.

The DRV8305 device includes three bidirectional current-shunt amplifiers for accurate low-side current measurements that support variable gain settings and an adjustable offset reference.

The DRV8305 device has an integrated voltage regulator (3.3-V or 5-V) to support an MCU or other system power requirements. The voltage regulator can be interfaced directly with a standard LIN physical interface to allow low system standby and sleep currents.

The gate driver uses automatic handshaking when switching to prevent current shoot through. The VDS of both the high-side and low-side MOSFETs is accurately sensed to protect the external MOSFETs from overcurrent conditions. The SPI provides detailed fault reporting, diagnostics, and device configurations such as gain options for the current shunt amplifier, individual MOSFET overcurrent detection, and gate-drive slew-rate control.

Device Options: DRV8305N: Voltage reference DRV83053: 3.3-V, 50-mA LDO DRV83055: 5-V, 50-mA LDO

open-in-new Find other Brushless DC (BLDC) motor drivers
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Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
DRV8323 ACTIVE 65-V max 3-phase smart gate driver with current shunt amplifiers Features absolute maximum rating of 65-V and smaller package size
Similar but not functionally equivalent to the compared device:
DRV8304 ACTIVE 40-V max 3-phase smart gate driver with current shunt amplifier Features slew rate tuning with smart gate drive and absolute maximum rating of 40-V

Technical documentation

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Type Title Date
* Datasheet DRV8305 Three Phase Gate Driver With Current Shunt Amplifiers and Voltage Regulator datasheet (Rev. B) Feb. 25, 2016
White papers Power Electronics in Motor Drives: Where is it? (Rev. A) Oct. 01, 2019
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Application notes Low Voltage Motor Drive Operation With Smart Gate Drive Dec. 20, 2018
Application notes Understanding Smart Gate Drive (Rev. C) Nov. 27, 2018
Application notes Field Oriented Control Made Easy for Brushless DC Motors Using Smart Gate Drive (Rev. B) Aug. 22, 2018
Application notes Cut-Off Switch in High-Current Motor-Drive Applications (Rev. A) Aug. 20, 2018
Technical articles Connectivity helps integrate intelligent motor control on a single MCU Jun. 06, 2018
Application notes Dual Motor Ctl Using FCL and Perf Analysis Using SFRA on TMS320F28379D LaunchPad (Rev. A) Mar. 20, 2018
Application notes Performance Analysis of Fast Current Loop (FCL) in Servo Mar. 06, 2018
Technical articles Cut the power and complexity of your appliance designs Feb. 06, 2018
Technical articles Six weird ways to design with a brushless-DC driver Aug. 28, 2017
Technical articles A basic brushless gate driver design – part 1 Jun. 12, 2017
User guides 18-V/400-W 98% Efficient Compact Brushless DC Motor Drive Design Guide Aug. 23, 2016
Application notes Sensored 3-Phase BLDC Motor Control Using MSP430 Jul. 20, 2011
Application notes Shelf-Life Evaluation of Lead-Free Component Finishes May 24, 2004

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
79
Description

The BOOSTXL-DRV8305EVM is a 15A, 3-phase brushless DC drive stage based on the DRV8305 motor gate driver and CSD18540Q5B NexFET™ power MOSFET. The module has individual DC bus and phase voltage sense as well as individual low-side current shunt sense for sensorless BLDC algorithms. The module (...)

Features
  • 4.4V to 45V voltage supply input
  • Supports up to 20A peak, 15A continuous current ouput
  • Provides phase voltage and current feedback for sensorless BLDC control solutions
  • Complete brushless DC drive stage in ultra compact form factor (2.0" x 2.2")
  • Full protected drive stage including short circuit (...)

Reference designs

REFERENCE DESIGNS Download
Sensorless High-Speed FOC Reference Design for Drone ESC
TIDA-00916 ESC modules are important subsystems for non-military drones and users demanding more efficient models that provide longer flight times and higher dynamic behavior with smoother and more stable performance. This design implements an Electronic Speed Controller (ESC) commonly used for unmanned aerial (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
4.4 V to 30 V, 15 A, High Performance Brushless DC Drone Propeller Controller Reference Design
TIDA-00643 The TIDA-00643 reference design is a 4.4 to 30 V brushless DC motor controller for high power drones, quadcopter, propeller, fan, and pump applications. It uses the Texas Instrument’s DRV8305 brushless DC motor gate driver, CSD17573Q5B 30V NexFET power MOSFETs, TPD4E05U06 TVS protection IC (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
10.8V/250W, 97% Efficient,Compact Brushless DC Motor Drive w/Stall Current Limit Reference Design
TIDA-00771 The TIDA-00771 is a 20 A RMS drive for a three phase brushless DC (BLDC) motor in power tools operating from a 3-cell Li-ion battery with a voltage range of 5 V to 12.6 V. This design is a 45 x 50 mm compact drive implementing sensor-based trapezoidal control. The design uses a discrete, compact (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
18-V/400-W 98% Efficient Compact Brushless DC Motor Drive w/Stall Current Limit Reference Design
TIDA-00772 — The TIDA-00772 is a 18 A RMS 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. This design is a 45 x 50 mm compact drive implementing sensor-based trapezoidal control. The design uses a discrete, compact MOSFET-based (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
1-PWM Brushless DC Motor Control Reference Design
TIDA-00645 This design is a 3-phase sensored Brushless DC Motor controller that uses a single PWM input for controlling speed and three active-high hall sensors for rotor position detection.  The DRV8305's integrated commutation table simplifies the microcontroller firmware required for proper (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTQFP (PHP) 48 View options

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