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Texas Instruments Unveils Smallest Gate Driver and Power MOSFET Solution for Motor Control

By Neha Rastogi

Texas Instruments has recently introduced two new device families so as to reduce weight and size in motor drive applications. The DRV832x brushless DC (BLDC) gate drivers along with CSD88584 and CSD88599 NexFET Power Blocks need as little as 511 mm2, which is half the space used by competing solutions.
  
Talking about the features, the DRV832X BLDC gate drivers carry a smart gate-drive architecture eliminating up to 24 components traditionally used to set the gate drive current. It also enables designers to adjust field-effect transistor (FET) switching to optimize power loss and electromagnetic compliance.
 
Texas Instruments Unveils Smallest Gate Driver and Power MOSFET Solution for Motor Control
(Image Courtesy: Texas Instruments)
 
Moving on, the CSD88584/99 power blocks leverage two FETs in a unique stacked-die configuration. It doubles power density and minimizes the FET resistance and parasitic inductances which are usually 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, etc.
 
Key Benefits of using the devices together:
 
• The combined solution offers 700 W of motor power without a heat sink. It provides 50% higher current than the conventional solutions and that too without increasing the footprint.
 
• The smart gate driver and power block can drive a peak current of up to 160 A for more than 1 second.
 
• The combination offers shorter trace lengths and prevents unintended FET turn=on while providing Undervoltage, overcurrent and thermal protection.
 
• The power blocks come in a thermally enhanced package that allows designers to apply a heat sink to the top of the device. This decreases thermal impedance and increases power dissipation, thereby maintaining safe operating temperatures.
 
• The power block’s switch node clip eliminates parasitic inductance between high and low-side FETs while the DRV832x gate driver’s passive component integration minimizes board traces.
 
Availability and Pricing
 
 
About Texas Instruments
 
Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog integrated circuits (ICs) and embedded processors. By employing the world’s brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today.

Filed Under: News
Tagged With: Electronic Device, Texas Instruments
 

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