Unlocking the potential of 48 V systems with Allegro Solutions
human-robot collaboration ■ AMT49100: 3-Phase BLDC Gate Driver with true 48V capability, integrated CSAs, and SIL-3 for safe servo motor control ■ CT310: TMR Bridge Angle Sensor with high-resolution (13-14 bit) analog output for precise motor commutation and joint feedback Humanoids Humanoid robots aim for human- like motion and interaction, demanding sophisticated actuation, dynamic balance, and complex perception. Allegro’s advanced servo motor control, versatile multi-axis position sensing, and efficient power management technologies are fundamental for the intricate mechanics and demanding performance required by the numerous joints in Humanoid robots. ■ AMT49100: 3-Phase BLDC Gate Driver with SIL-3 compliant 48V motor driving for precise control of multiple high-performance joints ■ A31301: Multi-Axis Position Sensor with user-selectable axes for flexible, precise angle sensing in complex, space-constrained joints Evaluation boards ■ ACSEVB-EZ7-37220-100B3 : evaluation board for the ACS37220 current sensor ■ APEK49101KJP-A-03-T: evaluation board for the AMT49101 ASIL BLDC MOSFET
Data center operators are increasingly adopting energy-
gate driver ■ APEK89500GEJ-01-T: evaluation board for the A89500 fast switching 100 V half-bridge MOSFET driver ■ APEK85111KNH-02-T-MH : evaluation board for AHV85111 self-powered single-channel isolated GaN FET gate driver Why stop at 48 V? The primary factor behind this limit was the safety standards that had to be met. Organizations such as UL and NFPA classified voltages below 60 V as Safety Extra Low Voltage (SELV), considering them safe for human contact with unshielded equipment. Systems operating above 48 V required more robust components and engineering to ensure adequate insulation and isolation, which increased overall cost and complexity. Although 48 V systems could be cost-effective, higher voltage systems often involved greater
initial expenses due to the need for specialized components and wiring. Their design tended to be more complex, and implementation could be more costly, as specialized parts were either more expensive or demanded more intricate manufacturing processes.
efficient technologies such as liquid cooling, renewable energy sources, and server virtualization to reduce their carbon footprint and lower operating costs. Conclusion The shift from 12 to 48 V systems is driven by the need for improved efficiency and reduced cooling requirements. In industrial automation, these systems offer higher power and enhanced safety compared to lower voltage options. Components such as motors, sensors, and gate drivers are designed specifically for 48 V systems, with a focus on safety, power output, mobility, and cost savings. With a wide range of 48 V products, Allegro delivers solutions that enable higher integration, as well as space and energy savings, allowing you to concentrate on your application.
Powering the artificial intelligence revolution
ACSEVB-EZ7-37220-100B3 Eval.Board for the ACS37220 Current Sensor (Figure 4, left) APEK85111KNH-02-T-MH Eval.Board for AHV85111 Isolated Gate Driver (Figure 4, right)
Delivering low-latency AI responses requires substantial computing power, which significantly increases data center energy demands. To improve efficiency and reduce cooling requirements, data centers are transitioning from 12 to 48 V power systems. Innovations in power supply design support this shift, with future developments aimed at enhancing power supply performance and density. Consequently, data centers need to be equipped with high- performance servers, advanced cooling systems, and robust power infrastructure to manage the workload effectively.
sensor in QFN Package ■ ACS37041 : +/- 2.8% sensitivity error, 7.6 bits resolution, is a small leaded magnetic current sensor for cost-optimized applications ■ ACS724 and ACS725 : high- accuracy, isolated current sensor ICs with stray field rejection Isolated gate drive units ■ AHV85000 : primary side of GaN FET isolated gate driver chipset with power-thru integrated isolated bias supply ■ AHV85111: self-powered single- channel isolated GaNFET gate driver with regulated bipolar output drive Autonomous Mobile Robots (AMRs) AMRs navigate dynamic environments for logistics and inspection, demanding precise motion, robust battery management, and reliable obstacle detection.
magnetic sensors for positioning and load sensing, and efficient power management ICs enhance AMR performance, optimize energy usage, and ensure operational safety in diverse settings. ■ AAS33001: Motor Position
Sensor for precise wheel/ lift motor control with easy
integration and on-chip misalignment calibration. ■ ACS71240 : Current Sensor that enables efficient battery life with low-cost, low-loss current sensing for motors. Collaborative robots (Cobots) Cobots work safely with humans, requiring precise motion, advanced safety features (SIL-2/3), and efficient power for articulated joints. Allegro’s true 48V gate drivers, high-resolution position sensors, and accurate current sensors enable robust joint performance, dependable braking, and optimized power management for reliable
Allegro’s integrated motor drivers,
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