2025/09/15
2025/08/29
2025/08/13
2025/09/15
NOVOSENSE has released the NSUC1612, a next-generation motor driver SoC designed to address the limitations of traditional discrete solutions in automotive smart actuators, such as system complexity, high cost, and limited reliability.
With its fully integrated single-chip architecture, the NSUC1612 can simplify design, reduce cost, and enhance stability. It supports a wide range of applications, including automotive water valves, automotive air-conditioning vent, active grille shutters, as well as stepper motors, DC brushed motors, and DC brushless motors—delivering an efficient and scalable solution for automotive electronics.
1.Fully Integrated Architecture: Simplified Design, Reduced Complexity
Conventional actuator control systems often require multiple components, including MCU, motor drivers, communication interfaces, and protection circuits, leading to complex PCB layout, increased solder joints, and compatibility issues.The NSUC1612 integrates a 32-bit ARM® Cortex®-M3 MCU with 4- or 3-channel half-bridge drivers, LIN/CAN controller communication interfaces, a 12-bit ADC, temperature sensors, and other essential modules, all in a single-chip. This eliminates the need for additional companion ICs while covering the full motor control, communication, and protection process.By reducing external components and simplifying hardware design, the NSUC1612 shortens development cycles and minimizes EMI risk through optimized internal signal routing.
2.Excellent EMC Performance: Reliable Operation in Harsh Environments
Automotive electronics operate in complex electromagnetic conditions where EMC performance directly impacts actuator precision and system stability. The NSUC1612 provides simplified reference circuits and optimized PCB layout. In compliance with CISPR 25:2021 Class 5, it passes stringent automotive EMC/EMI tests, compliant with the automotive standards
Selected Test Results Based on CISPR 25:2021
This ensures stable motor control signals and helps prevent malfunctions such as actuator stalls or misoperation caused by electromagnetic interference.
3.Strong Performance: Balanced Drive Capability and Processing Power
The NSUC1612 is designed to deliver both reliable motor driving capability and efficient computation: NSUC1612B: 4 half-bridge outputs, peak current up to 500 mA NSUC1612E: 3 half-bridge outputs, peak current up to 2.1 AThese options support brushed DC, BLDC, and stepper motors across diverse applications, from HVAC air vent adjustment to seat ventilation.
The ARM® Cortex®-M3 core with Harvard architecture integrates 32 KB Flash, 2 KB SRAM, and 15 KB ROM with Bootloader, supporting OTA upgrades. A 32 MHz high-precision oscillator with PLL ensures stable computation, while low-power sleep mode consumes less than 50 μA across the full operation temperature range, balancing performance with energy efficiency.
4.Automotive-Grade Reliability: Built for Demanding Conditions
The NSUC1612 is designed with comprehensive reliability features to withstand harsh operating environments. It is compliant with AEC-Q100 Grade 1, supporting junction temperatures up to 150°C and ensuring stable operation across a wide temperature range from -40°C to +125°C. The device’s LIN port can tolerate up to ±40 V, while the BVDD pin supports -0.3 V to 40 V, enabling direct connection to 12V automotive batteries. In addition, integrated protection mechanisms such as over-voltage and over-temperature safeguards provide robust defense against voltage fluctuations and transient surges, delivering system-level reliability under real-world automotive conditions.
The NSUC1612 extends its value through broad application compatibility, making it suitable for automotive actuator systems. It supports brushed DC, BLDC, and stepper motors, while integrated communication interfaces—including LIN PHY (compliant with LIN 2.x, ISO 17987, and SAE J2602), FlexCAN, and SPI—allow seamless integration into existing automotive network architectures.
The NSUC1612 is ideal for a wide range of applications, including thermal management components (e.g., automotive water valves and expansion valves), cabin comfort modules (automotive air-conditioning vent), and smart body systems (active grille shutters and charging port actuators). By integrating these functions into a single device, it helps reduce design costs and simplify development.
