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Principal Architect – Isolated Gate Driver Ic

Principal Architect – Isolated Gate Driver Ic

L&T Semiconductor TechnologiesDombivli, Republic Of India, IN
17 hours ago
Job description

Role Description :

Principal Architect – Isolated Gate Driver IC

Purpose :

We are looking for a Principal Architect with deep expertise in isolated gate driver IC design for SiC and GaN power devices to lead innovation in our Energy business. You will define and drive next-generation high-performance gate drivers used in SiC / GaN-based power modules for solar inverters, energy storage systems, grid-tied converters, and fast EV chargers.

The developed architectures and IP will also support Automotive (EV traction, onboard chargers) and Industrial (motor drives, robotics, power supplies) markets, ensuring a scalable, platform-based approach to wide-bandgap driver solutions.

Areas Of Responsibility :

  • Lead architecture and design definition for isolated gate driver ICs used with SiC and GaN power switches, optimized for high switching speed, high CMTI, and robustness.
  • Architect complete driver solutions including :
  • High / low side output stages (with Miller clamp, active pull-up / down, configurable source / sink)
  • Isolation interface (capacitive, magnetic, or optical)
  • Integrated protections (UVLO, DESAT, SCP, soft turn-off, active clamp)
  • Diagnostic and telemetry features (SPI / I²C interface, status flags)
  • Define system-level integration strategy for energy platforms, ensuring reliable performance across wide operating voltages, temperatures, and transient conditions.
  • Ensure design meets isolation standards (UL1577, VDE0884, IEC 60747-17) and supports high CMTI (>

100 kV / µs) performance.

  • Collaborate with SiC / GaN FET designers, power module architects, and system teams to define drive strength, layout constraints, and thermal performance targets.
  • Guide the team on HV layout practices, creepage / clearance, EMI reduction, and packaging co-design.
  • Drive IP reuse, design scalability, and enable the gate driver IP to be leveraged across energy, automotive, and industrial portfolios.
  • Lead architecture reviews, mentoring, and documentation of system specifications and design decisions.
  • Contribute to long-term roadmap and technology strategy for wide-bandgap driver solutions across all business units
  • Technical Skills

  • Expert in gate driver circuit design for wide-bandgap devices (SiC MOSFETs, GaN HEMTs).
  • Strong understanding of :
  • Level shifters, push-pull buffers, active clamps, and short-circuit protection
  • Isolation technologies and barrier design (capacitive / magnetic / optical)
  • High-side / low-side driver pairing and bootstrap techniques
  • Experience with protection and diagnostics : UVLO, DESAT, OCP, OTP, and integrated fault reporting.
  • Knowledge of high-voltage (>
  • 600 V) and high-frequency (>

    100 kHz–1 MHz) design constraints.

  • Tools : Cadence Virtuoso, Spectre, MATLAB, and simulation tools (e.G., PLECS, ADS, LTspice).
  • System-level co-design experience with SiC / GaN switches, power modules, and packaged solutions.
  • Strong foundation in EMI / EMC, thermal behavior, and safe operating area (SOA) management

    Behavioral Skills :

  • Strategic Thinking : Ability to define long-term technology direction aligned with energy market trends.
  • Technical Leadership : Influences and mentors multi-disciplinary teams with clarity and technical depth.
  • Cross-Functional Collaboration : Works effectively with hardware, software, mechanical, and systems engineering teams.
  • Customer Focus : Strong system-level thinking with sensitivity to application requirements and product value.
  • Innovation Mindset : Drives continuous improvement, patent generation, and competitive differentiation.
  • Decision-Making : Balances risk, performance, and timeline in high-impact technical decisions.
  • Communication : Strong verbal and written communication to present architectures, trade-offs, and strategy to execs and peers.
  • Qualifications :

  • M.Tech or Ph.D. in Electrical Engineering, Microelectronics, or related field.
  • 10-15+ years of experience in analog / mixed-signal design, including at least 5+ years in gate driver design for SiC / GaN.
  • Proven ability to architect and productize isolated gate drivers for high-performance applications.
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    Principal Architect • Dombivli, Republic Of India, IN