NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

Release time：2025-02-19
author：AMEYA360
source：NOVOSENSE
reading：1558

　　NOVOSENSE today announced the launch of the NSIP3266 full-bridge transformer driver with integrated crystal oscillator, multiple protection functions and soft start support, which can be widely used in isolated driver power supply circuits in automotive on-board chargers (OBCs), traction inverters and charging piles, photovoltaic power generation and energy storage, server power supply and other systems. NSIP3266 supports a full-bridge topology with a wide range of inputs, and with clever pin and function design, it greatly simplifies the design of isolated driver’s power supply circuits, facilitating system manufacturers to optimize system circuits and shorten product time to market.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Currently, isolated driver's power supply in high-voltage systems is available in three architectural forms: centralized, fully distributed, and semi-distributed. Centralized architecture has only one stage of power supply, and the auxiliary power input voltage has a wide input range, requiring closed-loop operation. At the same time, the transformer design is complicated, and especially when a single low-cost isolated power supply is used, there are problems of multi-output load regulation and long wiring, which increase the difficulty of system design and debugging.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Fully distributed architecture uses independent isolated power modules to supply power to isolated drivers. The advantage is that 1-to-1 power supply and targeted protection can be achieved for isolated drivers, but a corresponding number of isolated power modules need to be configured, and the system cost is high.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Semi-distributed architecture adopts a balanced strategy. Through a two-stage auxiliary power architecture, the first stage uses devices with a wide input voltage range to generate regulated rails, and the second stage can be a compact open-loop form using other devices to provide isolated power supply for isolated drives. Semi-distributed architecture is gaining popularity among engineers because of its simplicity in design and balance of system cost, performance, and protection requirements.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Simplified circuit design with full-bridge topology

　　NOVOSENSE's NSIP3266 full-bridge transformer driver is designed for semi-distributed architecture with isolated driver power supply. Common topology options for semi-distributed architecture include push-pull, LLC, and full-bridge. NSIP3266 adopts full-bridge topology. Compared with other solutions, the principle of full-bridge topology is simple, the transformer structure does not require a center tap, the working principle does not involve the design and selection of external L and C, and the peripheral BOM is often minimal. At the same time, the full-bridge topology is more tolerant to transformer design, including leakage inductance and parasitics, which saves engineers' efforts in system design and debugging.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Ingenious design releases MCU resources

　　It is worth mentioning that NSIP3266, through the internal integrated crystal oscillator circuit and RT pin design, allows engineers to complete the switching frequency configuration with only external resistors, achieving decoupling of MCU control and more flexible layout. At the same time, it can still provide safe power supply when the MCU fails, promoting higher system safety. In addition, the built-in soft-start function of NSIP3266 also eliminates the need for MCU control. While not requiring MCU domain routing, it saves secondary-side current limiting resistors, greatly simplifying board design and improving architectural flexibility.

NOVOSENSE Launches NSIP3266 Full-Bridge Transformer Driver with Integrated Crystal Oscillator, Simplifying Isolated Driver Power Supply Design

　　Wide voltage input and comprehensive protection

　　NSIP3266 supports a wide operating voltage range of 6.5V~26V. No additional TVS protection tube is required in the system circuit, allowing engineers to choose the pre-stage power supply more flexibly. In addition, NSIP3266 provides multiple protection functions, including undervoltage protection, overcurrent protection, over-temperature protection, etc. The comprehensive protection functions enable engineers to focus on the optimization and innovation of the core system functions, and to design the system quickly and efficiently to meet the reliability requirements.

　　Packaging and selections

　　NSIP3266 is available in EP-MSOP8 package (3.0 x 3.0mm x 0.65mm, with thermal pad). The industrial version, NSIP3266-D, and the automotive version, NSIP3266-Q1, which meets the requirements of AEC-Q100, will be mass-produced in the first half of 2025. Please contact NOVOSENSE's sales team (sales@novosns.com) for product details or to request samples.

　　Rich isolation products meet diverse needs

　　With its expertise and leadership in isolation technology, NOVOSENSE provides a series of isolation and "isolation+" products covering digital isolators, isolated sampling, isolated interfaces, isolated power supply, and isolated drivers. NSIP3266 is a new addition to NOVOSENSE's isolated power supply family. NOVOSENSE also offers a selection of other cost-effective and high-performance, high-integration options, including: the NSIP605x series of push-pull transformer drivers; the NSIP88/89xx and NIRSP31x series with integrated transformers and multi-channel digital isolators; the NSIP83086 isolated RS485 transceiver and the NSIP1042 isolated CAN transceiver with integrated transformers and isolated interfaces. NOVOSENSE's comprehensive "isolation+" product portfolio can meet the diverse system design needs of various types of customers and provide one-stop chip solutions for them.

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A new choice for high-accuracy, highly compatible current sensing: NOVOSENSE launches the NSCSA21x-Q series high-precision current sense amplifiers
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A new choice for high-accuracy, highly compatible current sensing: NOVOSENSE launches the NSCSA21x-Q series high-precision current sense amplifiers

　　NOVOSENSE has launched the NSCSA21x-Q series high-precision current sense amplifiers, offering a –2V to 28V common-mode input range, ultra-low ±5μV offset voltage, 130dB CMRR, and 200kHz bandwidth. Designed to meet the needs of new energy vehicles, server power supplies, telecom power systems, and energy storage, the NSCSA21x-Q series delivers exceptional accuracy and system stability in demanding environments.　　Addressing Key Challenges in Modern Power and Automotive Systems　　As automotive electrification and industrial intelligence advance, current sensing accuracy and system stability have become critical to overall performance. Traditional current sensors often face limitations in low-voltage detection, reverse connection protection, and dynamic response, impacting system reliability and efficiency. The NSCSA21x-Q series directly targets these pain points, overcoming three major challenges in precision current detection:　　(1) High-Precision Motor Phase Current Sampling　　Supports bidirectional current sensing in H-bridge structures. Combined with FOC algorithms, it enables ±0.5° electrical angle control for precise motor performance.　　(2) Suppression of Parasitic Inductance Interference　　In low-side sensing, the NSCSA21x-Q effectively mitigates “ground bounce” effects through PWM rejection, maintaining high accuracy even with small current signals. With a 130dB CMRR and only ±5μV input offset, it ensures signal integrity under severe transient conditions.　　(3) Reverse Battery Protection　　Withstands up to –28V reverse voltage, safeguarding the system against battery misconnection and simplifying protection circuit design.　　Robust Performance Across All Operating Conditions　　Breaking conventional design limits, the NSCSA21x-Q series supports a wide –2V to 28V common-mode range with built-in PWM suppression and chip-level reverse-voltage tolerance. Even under –28V reverse common-mode stress, the device quickly resumes normal operation. In rigorous transient tests (–2V to 12V step change), it achieves a <5μs recovery time and <50mV output disturbance, making it ideal for high-accuracy current detection in motor drives and solenoid control under PWM switching environments.　　Precision and Stability Across Temperature Extremes　　Featuring a ±5μV (typical) input offset voltage and ±0.5% maximum gain error, the NSCSA21x-Q maintains outstanding accuracy over a full –40°C to 125°C temperature range. With a temperature drift as low as 0.05μV/°C, it ensures stable measurements in harsh automotive and industrial conditions.Input Offset Voltage Distribution of NSCSA21x-Q SeriesCommon-Mode Rejection Ratio (CMRR) Distribution of NSCSA21x-Q Series　　Fast Dynamic Response and Strong Transient Protection　　With a 200kHz bandwidth (50V/V gain) and a 2V/μs slew rate, the NSCSA21x-Q supports fast current variation monitoring and real-time protection. Compared to mainstream alternatives, it achieves up to 3× faster transient response, meeting the needs of high-speed applications such as motor control and power protection.　　Flexible Configurations with Automotive-Grade Reliability　　The NSCSA21x-Q series offers four fixed gain options (50V/V, 75V/V, 100V/V, and 200V/V), covering both industrial and automotive versions. Packaged in an ultra-compact SC70-6 (2mm × 1.25mm) footprint, it's pin-compatible with industry standards, enabling smaller system size and higher design efficiency.Four Fixed-Gain Versions of the NSCSA21x-Q Series　　The NSCSA21x-Q series is AEC-Q100 Grade 1 qualified, supporting –40°C to +125°C operation and ensuring long-term reliability in automotive environments.
2026-01-15 17:20 reading：258
NOVOSENSE launches automotive- and industrial-grade NSCSA240-Q series current sense amplifiers to address PWM transient interference challenges
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NOVOSENSE launches automotive- and industrial-grade NSCSA240-Q series current sense amplifiers to address PWM transient interference challenges

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2026-01-12 13:52 reading：315
Driving Innovation Together: NOVOSENSE, UAES and Innoscience Join Forces to Reshape Power Electronics for New Energy Vehicles
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　　September 29, 2025 – NOVOSENSE Microelectronics, United Automotive Electronic Systems (UAES) and Innoscience have signed a strategic cooperation agreement to jointly advance power electronics for new energy vehicles (NEVs). The three parties will collaborate on the development of next-generation intelligent integrated Gallium Nitride (GaN) products. Building on their combined expertise, the new devices will deliver more reliable GaN driving and protection features, enabling higher power density and paving the way for commercial adoption across the automotive industry.Signing Ceremony　　GaN as a Key Driver for NEV Innovation　　With its superior material properties, GaN is emerging as a transformative technology in automotive power electronics. Compared to traditional silicon devices, GaN significantly improves system efficiency and power density, allowing for more compact and lighter designs—addressing the core requirements of vehicle electrification and lightweighting.　　Complementary Strengths, Shared Goals　　Through joint R&D and application validation, NOVOSENSE, UAES and Innoscience aim to tackle critical challenges such as efficiency, reliability and cost. Together, the three parties will deliver solutions that combine high performance with competitive economics. NOVOSENSE brings extensive expertise in high-performance analog and mixed-signal IC design. UAES contributes deep knowledge in system integration and automotive applications. Innoscience adds world-leading competence in GaN device technology. This cross-disciplinary collaboration establishes a platform for innovation across the entire value chain, accelerating GaN adoption in next-generation automotive systems.　　Dr. Xiaolu Guo, Deputy General Manager of UAES, said:“UAES has been at the forefront of automotive electronics for decades, consistently responding to industry needs through innovation. GaN technology is a vital enabler for vehicle electrification. Partnering with NOVOSENSE and Innoscience allows us to integrate capabilities from device to system level, driving GaN industrialization and delivering efficient, reliable and cost-effective solutions for our customers.”　　Mr. Shengyang Wang, Founder, Chairman and CEO of NOVOSENSE, commented:“Upgrading the NEV industry requires deep collaboration across the value chain. By combining UAES’s system integration expertise with Innoscience’s GaN leadership and NOVOSENSE’s IC design capabilities, we are creating a powerful synergy. This strategic partnership sets a benchmark for industry collaboration, ensuring both technological breakthroughs and market value creation.”　　Dr. Jingang Wu, CEO of Innoscience, added:“The potential of GaN in automotive power electronics is only beginning to be realized. True impact will come from aligning device innovation with system requirements. We look forward to working closely with NOVOSENSE and UAES to extend the boundaries of GaN applications in automotive electrification and to translate technological advantages into tangible industry benefits.”　　A Step Forward for the Industry　　This strategic cooperation marks a pivotal milestone for all three companies. NOVOSENSE, a leading Chinese automotive semiconductor supplier with nearly one billion automotive ICs shipped, complements UAES’s strong system know-how and Innoscience’s GaN device leadership. Together, the three parties will strengthen the value chain, overcome application bottlenecks, and accelerate the transition of the NEV industry toward higher efficiency and sustainability.
2025-10-09 13:53 reading：919
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2025-09-23 13:12 reading：1028
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