NaXinWei: PrimeDrive Isolated Gate Driver Launches a Small-Form-Factor Version, Enabling Compact Designs
Intelligent Isolated Gate Driver NSI67xx-Q1 Releases a Small-Form-Factor Version ， Package size reduced by approximately 40%. ， Supports the design of miniaturized electric drive systems, making it particularly well-suited for applications with stringent board-space constraints, such as when paired with compact power modules.
Recommended Circuit Diagram for NS167xx-Q1 (SOW16 Package)
Recommended Circuit Diagram for NSI67xx-Q1 (SSOP20 Package) 
Naxinwei PrimeDrive isolated gate driver NS167xx-Q1 series product features:
High isolation withstand voltage: 5700 Vrms
ROHS-compliant package: SSOW20 (6.4 mm × 10.3 mm), creepage distance > 8 mm.
Integrated isolation-simulated sampling function: can be used for temperature or voltage measurement, helping to simplify system design.
Supports ASC function (primary/secondary side): In abnormal conditions, output can be forcibly driven to a safe state.
High anti-interference capability: CMTI > 150 kV/µs, suitable for complex electric-drive electromagnetic environments.
High Drive Capability: 10 A sink and source current, rail-to-rail output, meeting the high-power-density electric-drive requirements of SiC and IGBT applications.
Comprehensive protection features: overcurrent and short-circuit protection (DESAT/OC), soft shutdown, Miller clamping, UVLO undervoltage protection, and fault alarm (indicated by the FLT/RDY pin).
AEC-Q100 automotive-grade certification
Naxinwei’s PrimeDrive isolated gate driver NSI67xx-Q1 helps electric drive systems achieve ASIL C functional safety goals: an ultra-cost-effective solution, certified by TÜV Rheinland, supporting both 400 V and 800 V high-voltage systems, and fully compatible with both SiC and IGBT power platforms.
Naxinwei’s system-level functional safety design solution for electric drive systems, implemented based on OM isolation driver chips: 
Isolated Gate Drive Technology
Naxin Micro has officially launched the PrimeDrive series of isolated gate drivers, dedicated to delivering high-reliability, full-range solutions for a wide range of applications and meeting stringent system requirements in high-voltage, high-dv/dt, and complex electromagnetic environments. This product family continues to be optimized in terms of drive capability, intelligent protection mechanisms, long-term operational reliability, and system robustness, boasting significant technological leadership and effectively helping customers reduce design and verification risks.
The PrimeDrive product portfolio encompasses isolated half-bridge drivers, isolated single-transistor drivers, intelligent isolated drivers, and functional safety drivers, among others. These products are widely applicable across automotive electronics, industrial control, renewable energy systems, power conversion, and consumer electronics, providing stable and reliable drive solutions for a wide range of system designs.
Building on this foundation, NSI has further expanded its NSI67xx-Q1 family of intelligent isolated gate drivers by introducing a compact SSOW20 package version. While retaining the original series’ outstanding performance and high reliability, this new package reduces PCB footprint by approximately 40% compared with the SOW16 package, making it better suited to the space-constrained design requirements of high-power-density electric drive systems—particularly when paired with compact power modules.
The electric drive system solution based on the NSI67xx-Q1 has successfully passed functional safety assessment by DEKRA, enabling the system to achieve ASIL C–level functional safety objectives. While meeting stringent safety requirements, this solution leverages well-optimized hardware redundancy and system architecture to minimize modifications to the main power circuit, thereby significantly shortening the development cycle. In addition, it is compatible with both 400 V and 800 V high-voltage platforms and fully supports SiC and IGBT power devices, providing an efficient and viable technical pathway for delivering cost-effective, functionally safe electric drive systems.
(Source: NSI official website)
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