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new products

drivers in a small package and retaining key performance

specifications, ADI provides designers with the flexibility

needed to successfully architect next generation power

conversion systems.

TI introduces the industry’s smallest gate

driver and power MOSFET solution for motor

control

TI introduces the industry’s smallest gate driver and

power MOSFET solution for motor control – May 23,

2017

Texas Instruments (TI) (NASDAQ:TXN) today

introduced two new device families that help reduce

size and weight in motor drive applications. When used

together, DRV832x brushless DC (BLDC) gate drivers

and CSD88584/99 NexFET™ Power Blocks require as

little as 511 mm2, half the board space of competing

solutions.

TI introduces the industry’s smallest gate driver and

power MOSFET solution for motor control – May 23,

2017

The DRV832x BLDC gate drivers feature a smart gate-

drive architecture that eliminates up to 24 components

traditionally used to set the gate drive current while

enabling designers to easily adjust field-effect

transistor (FET) switching to optimize power loss and

electromagnetic compliance. The CSD88584Q5DC

and CSD88599Q5DC power blocks leverage two FETs

in a unique stacked-die configuration, which doubles

power density and minimizes the FET resistance and

parasitic inductances typically found in side-by-side FET

configurations.

An 18-volt compact BLDC motor reference design

demonstrates how the DRV8323 gate driver and

CSD88584Q5DC power block can drive 11 W/cm3

power and enable engineers to jump-start their designs

for smaller, lighter-weight power tools, integrated motor

modules, drones and more. For more information, visit

www.ti.com/smallmotordesign-pr.

Benefits of using a CSD88584/99 and DRV832x device

together

Maximum power density: The combined solution delivers

700 W of motor power without a heat sink, providing

50 percent higher current than conventional solutions

without increasing the footprint.

High peak current: As demonstrated by the 18-volt BLDC

reference design, the smart gate driver and power block

are capable of driving a peak current of up to 160 A for

more than 1 second.

Optimal system protection: The combination enables

shorter trace lengths and actively prevents unintended

FET turn-on, while also providing undervoltage,

overcurrent and thermal protection.

Superior thermal performance: The CSD88584Q5DC

and CSD88599Q5DC power blocks come in TI’s

DualCool™ thermally enhanced package, which

enables designers to apply a heat sink to the top of the

device to decrease thermal impedance and increase the

amount of power dissipated to maintain safe operating

temperatures for the board and end application.

Clean switching: The power blocks’ switch-node clip

helps eliminate parasitic inductance between high- and

low-side FETs. Additionally, the DRV832x gate driver’s

passive component integration minimizes board traces.

Tools and support to jump-start design

In addition to the 18-volt BLDC motor reference design,

engineers can search for other motor reference designs

that use the power blocks and gate drivers to help solve

their system design challenges. The three-phase smart

gate-driver evaluation module (EVM) allows designers

to drive a 15-A, three-phase BLDC motor using the

DRV8323R gate driver, CSD88599Q5DC power block

and MSP430F5529 microcontroller LaunchPad™

development kit. The EVM is available from the TI store

for US$99.00.

Package, availability and pricing

The new DRV832x BLDC smart gate drivers offer

peripheral and interface options for engineers to select

the best device for their design: with or without an

integrated buck regulator or three integrated current-

shunt amplifiers. Each device option is available in

a hardware or serial interface and comes in quad

flat no-lead (QFN) packaging. The CSD88584/99

72 l New-Tech Magazine Europe