High-density switching solutions optimized for low conduction losses and robust avalanche endurance.
Decoding the semiconductor complexities of power dense, safe, and efficient battery management systems.
In the global race toward carbon neutrality, Battery Energy Storage Systems (BESS) have shifted from local backup systems to macro-scale infrastructure nodes. Modern battery designs require extremely tight cell-voltage matching, transient protection, and efficient power distribution. Standard off-the-shelf semiconductors often fail to provide the exact balance of parameters needed for high-current balancing, leading to excessive dissipation and thermal runaway risks.
This is where customized power switches come into play. By refining variables such as gate charge ($Q_g$), turn-on resistance ($R_{DS(on)}$), and thermal impedance ($R_{\theta JC}$), system designers can push performance envelopes further. In a standard Battery Management System (BMS), MOSFETs control active and passive cell-balancing networks, protect packs against high-amperage short circuits, and manage output switches. Finding a reliable semiconductor factory that provides highly specific parameter tuning is paramount for tier-1 OEMs and utility-scale product integrators.
Reducing package foot-print through advanced thermal packaging (DFN5x6-8L, TOLLA-8L) allows developers to build compact BMS modules with significantly higher current ratings.
Utilizing custom wafer structures and trench designs dramatically enhances avalanche energy endurance ($E_{AS}$), safeguarding systems against inductive voltage spikes.
Tailoring threshold voltage ($V_{GS(th)}$) to match specific MCU output configurations eliminates redundant gate-driver circuitries, minimizing system cost and failure points.
Navigating the transition to high-voltage stacks, wide-bandgap hybrids, and ultra-low conduction losses.
The core architecture of power MOSFETs has progressed from planar designs to high-density trench gates. Shielded Gate Trench (SGT) structures have redefined high-efficiency power conversion. By utilizing a field-plate design, SGT MOSFETs decrease $R_{DS(on)}$ by up to 50% compared to conventional trench structures without sacrificing breakdown voltages ($V_{DS}$).
This advancement is crucial for energy storage systems where battery strings run from 48V up to 800V. SGT technology provides low output capacitance ($C_{oss}$) which directly contributes to minimized switching losses under high frequencies, enabling smaller inductors and capacitors in DC-DC converters.
Modern BESS design favors holistic power solutions. Rather than sourcing disparate silicon dies, tier-1 suppliers seek out solution partners who can unify the control layer (Microcontrollers) and the power execution stage (MOSFETs) on a singular, optimized Printed Circuit Board Assembly (PCBA).
Integrating WINSOK MOSFETs, Cmsemicon MCUs, and complete PCBA circuit design.
HONGKONG Olukey INDUSTRY CO., LIMITED is a leading solution provider focusing on the overall solution of electronic product components. The main products mainly include: WINSOK MOSFET, Cmsemicon MCU, PCBA circuit board solution development and other three types of product lines.
At present, the products of Olukey Industry are widely used in automotive electronics, military electronics, smart industry, new energy, smart medical care, 5G, Internet of Things, smart home, and various consumer electronics products. Relying on the advantages of global general agents of major original factories, we are based in the Asia-Pacific market. We provide customers with various advanced high-tech electronic components using comprehensive superior services, assisting manufacturers in producing high-quality products and providing end-to-end support.
We use comprehensive high-quality services to provide customers with various types of advanced high-tech electronic components, assist manufacturers in producing high-quality products and provide comprehensive services. Over the years, the company has relied on reputation to survive, adhering to the tenet of "quality first, service first", and has established good cooperative relationships with many high-tech enterprises and original manufacturers at home and abroad.
Our supply chain architecture guarantees zero-defect sourcing direct from original production facilities, removing the risk of counterfeit components. Moreover, our active field application engineers (FAE) provide round-the-clock hardware support to solve layout, thermal management, and EMI challenges in high-power applications.
Deep-dive into WINSOK's comprehensive silicon topologies and structural packages.
Relying on the advantages of global general agents of major original manufacturers, we are based on the Asia-Pacific market. Through active market development and effective resource integration, we have become one of the outstanding and fast-growing agents in the Asia-Pacific region. The company has many years of professional distribution experience.
WINSOK MOSFET's product voltages are mainly medium and low voltage: 15V, 20V, 30V, 40V, 60V, 80V, 100V, 120V, 150V, 200V, 250V, 300V, 400V, 500V, 600V, 650V. The main packages include DFN3X3-8, DFN5X6-8, TO-252, TO-263, SOP-8, SOT-23, TO-220, etc. There are more than 600 models and more than 40 packages. Extensive coverage of medium-voltage and low-voltage MOSFET product lines on the market.
Cmsemicon MCU is a microcontroller company born in Shenzhen, with rich product types and technology research and development experience, offering perfect control synergy for energy storage system architectures.
Becoming a global high-value agent is the common goal pursued by OLUKEY Industrial employees. We adhere to the corporate values of "Pragmatism, Win-win, Service and Responsibility", continue to strengthen service quality, and aim to provide high-quality services. We work hand in hand with suppliers to jointly explore a larger market and contribute to the prosperity and development of semiconductors.
Addressing supply chain bottlenecks, custom packages, and quality testing standards.
Large energy storage converters require custom lead-frame configurations and die layouts. We work closely with packaging factories to optimize die bonding, utilizing copper clips instead of thin bonding wires to lower stray inductance and thermal resistance.
Energy storage installations must run continuously for decades. Our MOSFET components undergo strict reliability screenings including High-Temperature Reverse Bias (HTRB), High-Temperature Gate Bias (HTGB), and Temperature Cycling (TC) in compliance with JEDEC and AEC-Q101 equivalents.
Unprecedented market spikes require component suppliers to maintain buffer stocks. Olukey manages safety reserves across multiple central hubs in the Asia-Pacific region, assuring clients of consistent delivery cycles and shielding them from global price shocks.
Integrated silicon architectures designed for diverse energy ecosystems.
Residential solar setups rely on low-voltage battery packs (typically 48V-96V). Our range of 100V-150V N-channel MOSFETs in DFN5X6-8 and TO-220 packages provide low RDS(on) and low gate charges, ensuring optimal switching efficiency in bi-directional DC-DC converters. Coupled with Cmsemicon MCUs, we deliver turnkey solution boards that regulate power conversion dynamically.
C&I installations employ larger battery stacks where safety is the highest priority. High-power density MOSFETs packaged in TOLLA-8L (capable of handling up to 400A) manage active balancing networks and serve as solid-state circuit breakers. These devices are designed to withstand transient overcurrent surges and rapidly dissipate thermal spikes during fault conditions.
EV charging centers require fast buffer batteries to prevent local grid overloading. Utilizing high-voltage (600V-650V) WINSOK MOSFETs and robust MCU-driven PCBA topologies ensures high-speed switching and thermal stability. Our solutions help maintain stability across microgrid transfers, optimizing power redirection under varying loads.
Pioneering tomorrow's power density limits with advanced materials and structural packaging.
As the energy storage landscape transitions toward higher voltages and extreme power densities, traditional silicon structures reach physical limitations. Our development focus points toward three primary engineering frontiers:
Expert insights into key parameter selections, safety standards, and customized integration.
High-voltage and dual-channel options engineered for precision management and distribution.
Olukey
