Brushless DC Motors with Two
New Motor Drivers
Texas Instruments (TI) introduces two new motor drivers that support high performance powertrain applications.
The DRV8305-Q1 — a highly integrated three-phase
brushless DC gate driver — and the UCC27211A-Q1 — a
high current half-bridge gate driver — improve system
performance and provide design flexibility to meet a diverse
range of automotive system requirements.
For powertrain applications such as transmission pumps
or engine cooling fans, the DRV8305-Q1 features a smart
gate-drive architecture with programmable slew-rate control
that allows easy optimization of MOSFET electromagnetic
compliance (EMC). With an operating ambient temperature
range of - 40°C to 150°C, the DRV8305-Q1 meets the
Automotive Electronics Council (AEC)-Q100 Grade 0
automotive temperature specification.
Other features and benefits include the following:
Start-stop support: The device operates down to 4.4V
to support start-stop functionality, which enables car
manufacturers to meet strict fuel efficiency and carbon-dioxide emission standards.
Reduced board space: The DRV8305-Q1’s integrated
3.3V or 5V linear regulator, three current-sense amplifiers,
and smart gate-drive architecture reduces board size and
eliminates up to 20 external components.
Fault protection: Advanced on-chip protection with
detailed fault diagnostics guard against overtemperature,
undervoltage lockout, MOSFET shoot-through, and
For designers looking for design flexibility, the 100V
UCC27211A-Q1 half-bridge gate driver supports both
brushed and brushless DC motor applications. Designing
with individual half-bridges allows placement of the gate
driver close to the MOSFETs, minimizing parasitic
inductances and simplifying overall board layout.
Additionally, it offers the following benefits:
Leading per formance: With the industry’s fastest
propagation delays at 15 ns, fast rise and fall times of 7 ns,
and a 4A peak gate drive, the device packs high
performance into a small 4.89 mm by 3. 9 mm package
Robust protection: The UCC27211A-Q1’s negative
voltage rating of -12V protects the driver from potentially
damaging voltage spikes.
The DRV8305-Q1 and UCC27211A-Q1 expand TI’s
robust portfolio of motor drivers that offer designers
integrated flexible solutions across a broad range of
voltage, current, interface, integration, and control options.
The 9 mm by 9 mm DRV8305-Q1 is available in a 48-
pin thermally enhanced thin-quad flat pack (HTQFP)
package. It is priced at $2.65 in 1,000 unit quantities. The
DRV8305-Q1 evaluation module is available for $99 for
designers looking to create and configure a three-phase
motor drive and control system.
The UCC27211A-Q1 is available as an eight-pin small
outline integrated circuit (SOIC) package with PowerPAD™
packaging and is priced at $1.77 in 1,000 unit quantities.
For further information, please contact:
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