Specification	DRV8308RHAR

Applications	General Purpose
Function	Controller - Commutation, Direction Management
Interface	SPI
Motor Type - AC, DC	Brushless DC (BLDC)
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Pre-Driver - Half Bridge (3)
Package / Case	40-VFQFN Exposed Pad
Supplier Device Package	40-VQFN (6x6)
Voltage - Supply [Max]	32 VDC
Voltage - Supply [Min]	8.5 V

DRV8308 Series

42-V max sensored sinusoidal control, 3-phase BLDC gate driver with SPI

Part	Voltage - Supply [Min]	Voltage - Supply [Max]	Function	Output Configuration	Interface	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Supplier Device Package	Applications	Mounting Type	Motor Type - AC, DC	Embedded	Primary Attributes	Supplied Contents	Utilized IC / Part	Secondary Attributes	Type
Texas Instruments DRV8308RHAT	8.5 V	32 VDC	Controller - Commutation Direction Management	Pre-Driver - Half Bridge (3)	SPI	85 °C	-40 °C	40-VFQFN Exposed Pad	40-VQFN (6x6)	General Purpose	Surface Mount	Brushless DC (BLDC)
Texas Instruments DRV8308RHAR	8.5 V	32 VDC	Controller - Commutation Direction Management	Pre-Driver - Half Bridge (3)	SPI	85 °C	-40 °C	40-VFQFN Exposed Pad	40-VQFN (6x6)	General Purpose	Surface Mount	Brushless DC (BLDC)
Texas Instruments DRV8308EVM			Motor Controller/Driver										16-Bit MCU	Motors (BLDC)	Board(s) Cable(s)	DRV8308	Graphical User Interface (GUI)	Power Management

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 2.92
		10	$ 2.62
		25	$ 2.47
		100	$ 2.11
		250	$ 1.98
		500	$ 1.73
		1000	$ 1.44
	Digi-Reel®	1	$ 2.92
		10	$ 2.62
		25	$ 2.47
		100	$ 2.11
		250	$ 1.98
		500	$ 1.73
		1000	$ 1.44
	Tape & Reel (TR)	2500	$ 1.34
		5000	$ 1.29
Texas Instruments	LARGE T&R	1	$ 2.28
		100	$ 2.00
		250	$ 1.40
		1000	$ 1.13

Description

General part information

DRV8308 Series

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.

Documents

Technical documentation and resources

DRV8308 Brushless DC Motor Controller datasheet (Rev. B)

Data sheet