STMicroelectronics A5975DTR Brushless DC Motor Driver, HSOP8 Package for Automotive & Industrial

STMicroelectronics A5975DTR Brushless DC Motor Driver Overview

The STMicroelectronics A5975DTR is a high-performance 3-phase brushless DC (BLDC) motor driver engineered for precision motion control in B2B Automotive Electronics, Industrial Automation, and heavy-duty robotics systems. Designed to drive 3-phase BLDC motors with up to 1.5A continuous output current, it integrates a full bridge of MOSFETs, pulse-width modulation (PWM) control logic, and comprehensive protection features into a compact HSOP8 (High-Side Outline Package 8-pin) surface-mount package. With a 5.5V?C50V wide input voltage range and -40??C to +150??C operating temperature range, it reliably powers voltage-sensitive, high-load motors in harsh environments-from automotive engine bays to industrial factory floors. Key integrated features include overcurrent protection, thermal shutdown, under-voltage lockout, and short-circuit protection, making it a top choice for engineers prioritizing compact size, energy efficiency, and robust motor control in motion-critical applications.

As a premium product from STMicroelectronics-a global leader in semiconductor solutions for automotive and industrial motion control-the A5975DTR meets strict industry standards (AEC-Q100 Grade 1 qualification for automotive use, RoHS 2 compliance, and ISO 9001 certification) and undergoes rigorous durability testing. Senior engineers at a leading automotive component firm endorse it, noting: ??The A5975DTR??s HSOP8 size and 96% efficiency let us fit it in our automotive HVAC module while cutting power use by 45% vs. older drivers.?? For more reliable motor control and motion ICs, visit IC Manufacturer.

Technical Parameters of STMicroelectronics A5975DTR

Parameter	Specification
Function	3-phase brushless DC (BLDC) motor driver with integrated MOSFETs
Input Voltage Range	5.5V to 50V
Maximum Continuous Output Current	1.5A (per phase)
Peak Output Current	3A (short-duration, ??100ms per phase)
Peak Efficiency	96% (typical, 12V input, 1A load, 10kHz PWM)
PWM Frequency Range	1kHz to 20kHz (adjustable via external control signal)
Package Type	HSOP8 8-pin surface-mount package with exposed thermal pad
Package Dimensions	5.0mm x 6.2mm x 1.6mm
Operating Temperature Range	-40??C to +150??C
Quiescent Current	10mA (typical, no-load condition); 1??A (shutdown mode)
Control Interface	PWM input (6-channel for 3-phase control) or analog speed control
Integrated Protection Features	Overcurrent protection (2A typical), thermal shutdown (160??C typical), under-voltage lockout (4.5V typical), short-circuit protection
Compliance	RoHS 2 compliant, ISO 9001 certified, AEC-Q100 Grade 1

Key Technical Features of A5975DTR BLDC Motor Driver

• Integrated 3-phase MOSFET bridge, eliminating the need for external power switches and reducing component count by 60%. An automotive HVAC engineer reported: ??This feature cut our module??s PCB space by 35%-critical for fitting in tight under-dash enclosures. We also reduced assembly time by 40% vs. using discrete MOSFETs.??
• 5.5V?C50V wide input range, accommodating 12V automotive batteries, 24V industrial supplies, and 48V light electric vehicle (LEV) systems without external voltage clamping. An industrial robot designer noted: ??We use the same driver across 12V small robots and 24V heavy-duty arms-standardizing inventory and cutting part SKUs by 55%.??
• HSOP8 package with exposed thermal pad, delivering 40% better heat dissipation than standard SO8 packages at 1.5A load. Automotive component teams confirm: ??This package keeps the driver 32??C cooler at full load, eliminating the need for heat sinks in engine bay applications-saving 20% weight and 25% cost per module.??
• 96% peak efficiency, minimizing energy loss in battery-powered and grid-connected motor systems. A LEV manufacturer shared: ??This efficiency extends our e-scooter??s battery range by 18%-from 40km to 47km per charge-meeting customer demand for longer rides without larger batteries.??
• Low torque ripple (??2%), ensuring smooth motor operation for precision applications like industrial conveyor belts and automotive window lifts. A factory automation firm noted: ??This ripple reduction cut product jitter on our conveyors by 98%, improving packaging accuracy and reducing scrap rates by 15% annually.??

Advantages of A5975DTR vs. Typical Alternative Motor Drivers

Compared to discrete MOSFET-based motor drives, larger-package drivers (e.g., DIP16), and narrow-input-range BLDC controllers, the A5975DTR delivers three critical benefits for B2B motion control designs-backed by real customer feedback:

First, its integrated MOSFET bridge outperforms discrete solutions. Discrete designs require 6 external MOSFETs, 2 gate drivers, and 3 current sense resistors-adding cost, PCB space, and failure points. The A5975DTR??s all-in-one design eliminates these. An automotive window lift designer explained: ??Our old discrete drive used 12 components; this driver uses 1. We cut PCB space by 50%, reduced assembly errors by 85%, and lowered warranty claims by 70%-critical for high-volume automotive production.??

Second, its HSOP8 package solves space challenges vs. larger alternatives. DIP16 packages (19.0mm x 6.4mm) take 2.5x more PCB space than the 5.0mm x 6.2mm HSOP8, making them unsuitable for compact applications. The HSOP8??s surface-mount format also enables denser layouts. An industrial robot firm confirmed: ??Our old DIP16 driver forced us to use a 20mm x 10mm PCB section; this HSOP8 fits in 5mm x 6mm-key for our slim robot joints. This also reduced joint weight by 28%, improving robot agility.??

Third, its wide input range outperforms narrow-input drivers. Narrow-input (e.g., 12V?C24V) drivers require separate parts for 48V LEVs or 5V IoT robots-adding inventory complexity. The A5975DTR??s 5.5V?C50V range eliminates this. A LEV manufacturer shared: ??We use one driver for our 48V e-scooters and 12V e-bikes-cutting part count by 50% and simplifying supply chain management. This also reduced engineering time for new models by 30%.??

Typical Applications of STMicroelectronics A5975DTR

The A5975DTR is engineered to solve precision, compact BLDC motor control challenges-with proven success in these key B2B use cases:

• Automotive Electronics (HVAC Blowers): Driving 3-phase BLDC motors in automotive heating/cooling systems. An automotive firm confirmed: ??96% efficiency cuts battery drain by 45%, and HSOP8 size fits under dashes-HVAC module weight reduced by 20% vs. older drivers.??
• Industrial Automation (Conveyor Belt Motors): Controlling 12V/24V BLDC motors in factory conveyors. A factory operator noted: ??Low torque ripple improves speed consistency by 98%, and overcurrent protection prevents motor damage-conveyor downtime dropped by 42%.??
• Automotive Electronics (Electric Power Steering Assist): Powering 12V BLDC motors in compact EPS systems. An automotive supplier reported: ??Wide input range handles battery voltage dips, and thermal protection ensures reliability-EPS system failure rates reduced by 75%.??
• Industrial Automation (Robot Joints): Driving small BLDC motors in robotic arm joints. A robotics firm confirmed: ??HSOP8 package fits in slim joints, and 1.5A current delivers precise torque-robot positioning accuracy improved by 99% vs. servo drivers.??
• Consumer Electronics (E-Scooter Motors): Controlling 48V BLDC motors in light electric vehicles. A LEV brand shared: ??96% efficiency extends range by 18%, and under-voltage lockout protects batteries-customer satisfaction scores improved by 35%.??

Frequently Asked Questions (FAQ) About A5975DTR

Why is integrated MOSFET bridge critical for automotive HVAC modules?

Automotive HVAC modules have limited under-dash space, so discrete MOSFETs (which require 6 external chips) take too much room. The A5975DTR??s integrated bridge uses one chip instead of 12 discrete components. An automotive engineer noted: ??This cuts PCB space by 50%, letting us fit the module in tight enclosures. We also reduced assembly errors by 85%-critical for high-volume car production where even small defects cause costly recalls.??

How does the HSOP8 package benefit industrial robot joints?

Industrial robot joints need slim, lightweight designs to maintain agility, and larger packages like DIP16 add bulk. The HSOP8??s 5.0mm x 6.2mm size saves 60% space vs. DIP16, and its thermal pad prevents overheating. A robotics designer shared: ??Our old DIP16 driver made joints 20mm wide; this HSOP8 lets us make them 8mm-improving robot reach by 15%. The thermal pad also keeps temperatures 32??C lower, avoiding joint overheating during 24/7 operation.??

Can the A5975DTR operate with 48V light electric vehicle batteries?

Yes. Its 5.5V?C50V input range matches 48V LEV batteries (common in e-scooters and e-bikes) and maintains stable motor control even as batteries discharge to 5.5V. A LEV manufacturer confirmed: ??Our 48V batteries drop to 36V when low; this driver keeps motors running smoothly-no sudden power cuts. This extended ride range by 18% and reduced customer complaints about unexpected stops by 90%.??

What value does low torque ripple add for factory conveyor belts?

Factory conveyors need consistent speed to avoid product jitter or misalignment-high torque ripple causes speed fluctuations, leading to scrap. The A5975DTR??s ??2% ripple eliminates this. A manufacturing engineer noted: ??Our old driver??s 15% ripple caused 12% of packages to be misaligned; this model cuts ripple to 2%, reducing scrap by 15% annually. This saved the factory $60,000 in material costs last year.??

How does wide input range help multi-voltage industrial robot fleets?

Industrial fleets often use mixed-voltage robots-12V for small pickers, 24V for heavy-duty arms, and 48V for AGVs. The 5.5V?C50V range handles all without separate drivers. A factory manager shared: ??We use one driver across 3 robot types, standardizing inventory and cutting logistics costs by 45%. We also avoid training technicians on 3 different drivers, saving 25% in training time annually.??