Interactive Block Diagrams

Traction Inverter - Block Diagram

Traction inverter converts DC voltage from HV battery pack to 3-Phase AC, driving the electric traction motor.

"blocks": [ { "name": "HV Battery", "function": "Provides high-voltage DC power for traction inverter and motor drive.", "theory_of_operation": "Stores energy in lithium-ion cells and delivers 400V/800V DC to inverter stage.", "interaction": "Connects to Active Discharging and Inverter Stage.", "category": "Third party", "connection": ["Active Discharging", "Isolated Bias Supply", "Sensing & Isolation"] }, { "name": "LV Battery", "function": "Provides low-voltage power for auxiliary systems and control electronics.", "theory_of_operation": "Delivers 12V/48V DC for MCU, communication, and support circuits.", "interaction": "Feeds Auxiliary Power Supply and Support Circuitry.", "category": "Third party", "connection": ["Auxiliary Power Supply"] }, { "name": "Isolated Bias Supply", "function": "Provides isolated bias voltages for gate drivers and sensing circuits in high-voltage domains.", "theory_of_operation": "Uses transformer-based isolated DC/DC converters to generate floating supplies for high-side and low-side gate drivers, ensuring galvanic isolation and safe operation.", "interaction": "Interfaces with Auxiliary Power Supply to deliver isolated power rails for inverter control.", "category": "onsemi", "connection": ["Auxiliary Power Supply"] }, { "name": "Active Discharging", "function": "Safely discharges high-voltage DC bus during maintenance or shutdown.", "theory_of_operation": "Uses controlled resistive path and MOSFET switches to bleed off stored energy.", "interaction": "Interfaces with HV Battery and Inverter Stage.", "category": "onsemi", "connection": ["Sensing & Isolation", "Inverter Stage"] }, { "name": "Inverter Stage", "function": "Converts DC from HV battery to three-phase AC for motor drive.", "theory_of_operation": "Uses six-switch bridge topology with PWM control for variable speed and torque.", "interaction": "Connects HV Battery to Three-Phase Motor via Gate Drivers.", "category": "onsemi", "connection": ["Sensing & Isolation", "Three-Phase Motor"] }, { "name": "Gate Driver", "function": "Provide gate control signals for inverter power switches.", "theory_of_operation": "Amplifies MCU logic signals to high-current gate pulses with isolation.", "interaction": "Interfaces between MCU and inverter stage switches.", "category": "onsemi", "connection": ["Inverter Stage", "Active Discharging"] }, { "name": "Sensing & Isolation", "function": "Provides electrical isolation and feedback for current and voltage sensing.", "theory_of_operation": "Uses isolated amplifiers and ADCs for accurate measurement of motor and inverter parameters.", "interaction": "Connects inverter stage to MCU for closed-loop control.", "category": "onsemi", "connection": ["MCU"] }, { "name": "Three-Phase Motor", "function": "Converts electrical energy into mechanical torque for vehicle propulsion.", "theory_of_operation": "Uses electromagnetic induction controlled by inverter-generated AC signals.", "interaction": "Receives three-phase AC from inverter stage.", "category": "Third party", "connection": ["Inductive Position Sensor"] }, { "name": "Inductive Position Sensor", "function": "Provides rotor position feedback for field-oriented control.", "theory_of_operation": "Uses inductive sensing to detect rotor angle and speed.", "interaction": "Interfaces with MCU for motor control algorithms.", "category": "Third party", "connection": ["MCU"] }, { "name": "Auxiliary Power Supply", "function": "Generates isolated low-voltage rails for control electronics.", "theory_of_operation": "Includes PWM controller, DC/DC converter, LDO, and protection circuits.", "interaction": "Feeds MCU, gate drivers, and sensing circuits.", "category": "onsemi", "connection": ["MCU", "Gate Driver", "Sensing & Isolation", "Inductive Position Sensor", "Support Circuitry", "Communication"], "sub_blocks": [ { "name": "PWM Controller", "function": "Controls switching for DC/DC conversion.", "theory_of_operation": "Generates PWM signals for MOSFET drivers.", "interaction": "Interfaces with DC/DC converter.", "category": "onsemi", "connection": [] }, { "name": "DC/DC Converter", "function": "Steps down voltage for LV rails.", "theory_of_operation": "Switching regulator for efficient conversion.", "interaction": "Feeds LDO and MCU.", "category": "onsemi", "connection": [] }, { "name": "LDO Regulator", "function": "Provides clean low-noise voltage for sensitive circuits.", "theory_of_operation": "Linear regulation for minimal ripple.", "interaction": "Feeds MCU and analog blocks.", "category": "onsemi", "connection": [] }, { "name": "MOSFET", "function": "Acts as switching element in converters.", "theory_of_operation": "Controlled by PWM controller for efficient switching.", "interaction": "Connects converter stages.", "category": "onsemi", "connection": [] }, { "name": "Diode", "function": "Provides reverse polarity protection and rectification.", "theory_of_operation": "Allows current flow in one direction only.", "interaction": "Placed in converter circuits for protection.", "category": "onsemi", "connection": [] }, { "name": "Circuit Protection", "function": "Protects LV circuits from overcurrent and short circuits.", "theory_of_operation": "Uses fuses or electronic protection ICs.", "interaction": "Placed on LV rails before loads.", "category": "onsemi", "connection": [] } ] }, { "name": "MCU", "function": "Central control unit for traction inverter operation.", "theory_of_operation": "Executes motor control algorithms, monitors system status, and manages communication.", "interaction": "Receives feedback from sensing and controls gate drivers.", "category": "Third party", "connection": ["Gate Drivers", "Communication", "Support Circuitry"], }, { "name": "Communication", "function": "Provides in-vehicle and external communication for diagnostics and control.", "theory_of_operation": "Implements automotive communication protocols for data exchange.", "interaction": "Connects MCU to vehicle network and external interfaces.", "connection": ["MCU", "Support Circuitry"], "sub_blocks": [ { "name": "CAN", "function": "Provides robust in-vehicle communication.", "theory_of_operation": "Differential signaling for fault-tolerant data exchange.", "interaction": "Connects MCU to CAN bus.", "category": "onsemi", "connection": [] }, { "name": "LIN", "function": "Low-speed communication for simple devices.", "theory_of_operation": "Single-wire protocol for cost-effective networking.", "interaction": "Connects MCU to LIN nodes.", "category": "onsemi", "connection": [] }, { "name": "Ethernet", "function": "Provides high-speed data communication.", "theory_of_operation": "Implements automotive Ethernet standards.", "interaction": "Connects MCU to external network.", "category": "onsemi", "connection": [] }, { "name": "ESD Protection", "function": "Protects communication lines from electrostatic discharge.", "theory_of_operation": "Uses TVS diodes to clamp voltage spikes.", "interaction": "Placed on CAN, LIN, and Ethernet lines.", "category": "onsemi", "connection": [] } ] }, { "name": "Support Circuitry", "function": "Ensures signal integrity and protection for control and communication.", "theory_of_operation": "Includes ESD protection, level translators, voltage references, and supervisory circuits.", "interaction": "Interfaces between MCU and peripheral circuits.", "connection": ["MCU"], "sub_blocks": [ { "name": "Memory", "function": "Stores firmware and operational data.", "theory_of_operation": "Non-volatile storage for system code and logs.", "interaction": "Interfaces with MCU core.", "category": "onsemi", "connection": [] }, { "name": "Standard Logic", "function": "Implements basic digital functions for control.", "theory_of_operation": "Uses CMOS gates for signal processing.", "interaction": "Connects to MCU and I/O expanders.", "category": "onsemi", "connection": [] }, { "name": "Voltage Reference", "function": "Provides stable reference voltage for ADC and comparators.", "theory_of_operation": "Precision bandgap reference circuit.", "interaction": "Feeds MCU and analog blocks.", "category": "onsemi", "connection": [] }, { "name": "Voltage Supervisor", "function": "Monitors supply voltage and resets MCU on fault.", "theory_of_operation": "Compares supply voltage to threshold and asserts reset.", "interaction": "Connects to MCU reset pin.", "category": "onsemi", "connection": [] } ] } ], "interconnections": [ {"source": "HV Battery", "target": "Active Discharging"}, {"source": "HV Battery", "target": "Isolated Bias Supply"}, {"source": "HV Battery", "target": "Sensing & Isolation"}, {"source": "Active Discharging", "target": "Inverter Stage"}, {"source": "Active Discharging", "target": "Sensing & Isolation"}, {"source": "Inverter Stage", "target": "Three-Phase Motor"}, {"source": "Inverter Stage", "target": "Sensing & Isolation"}, {"source": "Three-Phase Motor", "target": "Inductive Position Sensing"}, {"source": "Gate Driver", "target": "Inverter Stage"}, {"source": "Gate Driver", "target": "Active Discharging"}, {"source": "Isolated Bias Supply", "target": "Auxiliary Power Supply"}, {"source": "Sensing & Isolation", "target": "MCU"}, {"source": "Auxiliary Power Supply", "target": "MCU"}, {"source": "Auxiliary Power Supply", "target": "Gate Driver"}, {"source": "Auxiliary Power Supply", "target": "Sensing & Isolation"}, {"source": "Auxiliary Power Supply", "target": "Communication"}, {"source": "Auxiliary Power Supply", "target": "Inductive Position Sensing"}, {"source": "Communication", "target": "MCU"}, {"source": "Support Circuitry", "target": "MCU"}, {"source": "Inductive Position Sensor", "target": "MCU"}, {"source": "MCU", "target": "Gate Driver"}, {"source": "MCU", "target": "Communication"}, {"source": "MCU", "target": "Support Circuitry"}, ], "Last_update": "2025-12-19",

MOSFET - Block

Products

• Low/Medium Voltage MOSFETs
  • NVMTS1D6N10MC

    Single N-Channel Power MOSFET 100V, 273A, 1.7mΩ

  • NVMFWS1D9N08X

    Single N-Channel Power MOSFET 80V, 201 A, 1.9 mΩ

  • NVMJST2D6N08H

    Single N-Channel Power MOSFET 80V, 157A, 2.8 mΩ on Top Cool Package

  • NVMFWS0D4N04XM

    T10M 40V Single N-Channel Power MOSFET 40 V, 509 A, 0.42mΩ

  • NVMFWS1D1N04XM

    Single N-Channel Power MOSFET 40 V, 233A,1.05mohm

  • NVMJST1D6N04C

    Single N-Channel Power MOSFET 40V, 319A, 1.65 mΩ on top Cool Package

• Protected MOSFETs
  • NCV8412

    Self-Protected Low Side Driver with In-Rush Current Management

  • NCV8413

    Self-Protected Low Side Driver with In-Rush Current Management

  • NCV84090

    Self Protected Very Low Iq High Side Driver with Analog Current Sense

  • NCV8415

    Self-Protected Low Side Driver with In-Rush Current Management

  • NCV84160

    Protected MOSFET High-Side Driver, 12 A, 160 mΩ

• Small Signal MOSFETs
  • 2V7002L

    N-Channel Small Signal MOSFET 60V, 115mA, 7.5Ω

  • 2V7002W

    N-Channel Small Signal MOSFET 60V, 340mA, 1.6Ω

  • NVR5124PL

    Single P−Channel Power MOSFET −60V, −1.1A, 230mΩ

Technical Documentation

• Application Notes
  • AND90158/D - Understanding Power MOSFET Avalanche Operation and Associated UIS (UIL) Data Sheet Ratings
  • AN-9034 - Power MOSFET Avalanche Guideline
  • AN-9010/D - MOSFET Basics
  • AND90190/D - Top Cool Package for Power Discrete MOSFETs
  • AN-4163 - Shielded Gate POWERTRENCH® MOSFET Datasheet Explanation
  • AND8202/D - Low-Side SmartFETs
  • AND9733/D - High-Side SmartFETs with Analog Current Sense
• Data Sheet
  • NVMTS1D6N10MC/D - MOSFET - Power, Single N-Channel, 100 V, 1.7 mohm, 273 A
  • NVMFWS1D9N08X/D - MOSFET - Power, Single N-Channel, STD Gate, SO8FL
  • NVMJST2D6N08H/D - MOSFET – Power, Single N-Channel, 80 V, 2.8 mohm, 131.5 A
  • NVMFWS0D4N04XM/D - MOSFET - Power, Single N-Channel, STD Gate, SO8-FL
  • NVMFWS1D1N04XM/D - MOSFET - Power, Single N-Channel, STD Gate, SO8FL, 40 V, 1.05 mohm, 233 A
  • NVMJST1D6N04C/D - MOSFET - Power, Single N-Channel, 40 V, 1.65 mΩ, 314 A
  • 2N7002L/D - MOSFET – N-Channel, Small Signal, SOT-23 60 V, 115 mA
  • 2N7002W/D - MOSFET – Small Signal, N-Channel, Single 60 V, 340 mA, SC-70
  • NVR5124PL/D - MOSFET - Power, Single P-Channel, SOT-23 -60 V, -1.1 A, 230 mΩ
  • NCV8412/D - Self-Protected Low Side Driver with In-Rush Current Management
  • NCV8413/D - Self-Protected Low Side Driver with In-Rush Current Management
  • NCV84090/D - Self Protected Very Low Iq High Side Driver with Analog Current Sense
  • NCV8415/D - Self-Protected Low Side Driver with In-Rush Current Management
  • NCV84160/D - Self Protected Very Low Iq High Side Driver with Analog Current Sense
• Drawing
  • 2N7002L_PKG - 2N7002L_PKG | Package Drawing
  • 2N7002W.REV2.PDF_PD - 2N7002W.REV2.PDF_PD | Package Drawing
• Eval Board
  • SEC-6K6W-CLLC-PB-GEVB_POWER_BOARD_SCHEMATIC.pdf - SEC-6K6W-CLLC-PB-GEVB Power Board Schematic | Schematic
  • SEC-6K6W-CLLC-CTRL-GEVB_CONTROL_BOARD_SCHEMATIC.pdf - SEC-6K6W-CLLC-CTRL-GEVB Control Board Schematic | Schematic
  • 6K6W-CLLC-RESONANT_TANK_SCHEMATIC.pdf - 6K6W-CLLC-RESONANT Tank Schematic | Schematic
  • SEC-6K6W-CLLC-GEVK_GERBER - SEC-6K6W-CLLC-GEVK Gerber Layout Files (Zip format) | Gerber
  • SEC-6K6W-CLLC-PB-GEVB_BOM_ROHS.pdf - SEC-6K6W-CLLC-PB-GEVB Bill of Materials (ROHS Compliant) | BOM
  • NCV8412ADGEVB_SCHEMATIC - NCV8412ADGEVB Schematic | Schematic
  • NCV8412ASGEVB_SCHEMATIC - NCV8412ASGEVB Schematic | Schematic
  • NCV8412ADGEVB_GERBER - NCV8412ADGEVB Gerber Layout Files (Zip Format) | Gerber
  • NCV8412ASGEVB_GERBER - NCV8412ASGEVB Gerber Layout Files (Zip Format) | Gerber
  • NCV8412ASGEVB_TEST_PROCEDURE - NCV8412ASGEVB Test Procedure | Test Procedure
  • NCV8412ADGEVB_TEST_PROCEDURE - NCV8412ADGEVB Test Procedure | Test Procedure
  • NCV8412ADGEVB_BOM_ROHS - NCV8412ADGEVB Bill of Materials (ROHS Compliant) | BOM
  • NCV8412ASGEVB_BOM_ROHS - NCV8412ASGEVB Bill of Materials (ROHS Compliant) | BOM
  • NCV8413DTGEVB_SCHEMATIC - NCV8413DTGEVB Schematic | Schematic
  • NCV8413DTGEVB_GERBER - NCV8413DTGEVB Gerber Layout Files (Zip Format) | Gerber
  • NCV8413DTGEVB_TEST_PROCEDURE - NCV8413DTGEVB Test Procedure | Test Procedure
  • NCV8413DTGEVB_BOM_ROHS - NCV8413DTGEVB Bill of Materials (ROHS Compliant) | BOM
  • NCV8415DTGEVB_SCHEMATIC - NCV8415DTGEVB Schematic | Schematic
  • NCV8415_SOT-223_SCHEMATIC - NCV8415SGEVB Schematic | Schematic
  • NCV8415_SOT-223_GERBER - NCV8415SGEVB Gerber Layout Files (Zip Format) | Gerber
  • NCV8415DTGEVB_GERBER - NCV8415DTGEVB Gerber Layout Files (Zip Format) | Gerber
  • NCV8415DTGEVB_TEST_PROCEDURE - NCV8415DTGEVB Test Procedure | Test Procedure
  • NCV8415_TEST_PROCEDURE - NCV8415SGEVB Test Procedure | Test Procedure
  • NCV8415DTGEVB_BOM_ROHS - NCV8415DTGEVB Bill of Materials (ROHS Compliant) | BOM
  • NCV8415_SOT-223_BOM_ROHS - NCV8415SGEVB Bill of Materials (ROHS Compliant) | BOM
• Models
  • PTNG_100V_PSPICE - PTNG_100V_STD_PSPICE
  • PTNG_100V_LTSPICE - PTNG_100V_STD_LTSPICE
  • PTNG_100V_Simetrix - PTNG_100V_STD_Simetrix
  • T10_80V_STD_SIMETRIX - T10_80V_STD_SIMETRIX
  • T10_80V_STD_PSPICE - T10_80V_STD_PSPICE
  • T10_80V_STD_LTSPICE - T10_80V_STD_LTSPICE
  • T8_80V_std_gate LTspice - T8_80V_std_gate LTspice
  • T8_80V_std_gate simetrix - T8_80V_std_gate simetrix
  • T8_80V_std_gate PSpice - T8_80V_std_gate PSpice
  • T10M_40V_STD_Pspice - T10M_40V_STD_Pspice
  • T10M_40V_STD_LTspice - T10M_40V_STD_LTspice
  • T10M_40V_STD_Simetrix - T10M_40V_STD_Simetrix
  • T6_40V_std_gate PSpice - T6_40V_std_gate PSpice
  • T6_40V_std_gate Simetrix - T6_40V_std_gate Simetrix
  • T6_40V_std_gate LTspice - T6_40V_std_gate LTspice
  • 2N7002L.SIN - Saber Model
  • 2N7002L.LIB - P Spice Model
  • 2N7002L.SP3 - Spice 3 Model
  • 2N7002L.SP2 - Spice 2 Model
  • 2V7002W - 2V7002W (Spice)
  • NVR5124PL - NVR5124PL (Spice)
• Package Drawing
  • 507AP - TDFNW8 8.30x8.40x1.10, 2.00P
  • 507BA - DFNW5 4.90x5.90x1.00, 1.27P
  • 760AG - TCPAK10 5.1x7.5, 1.0P
  • 507BD - DFNW5 5x6, FULL−CUT SO8FL WF
  • 318 - SOT-23 (TO-236) 2.90x1.30x1.00, 1.90P
  • 419-04 - SC-70 (SOT-323) 3 LEAD
  • 751-07 - SOIC-8 Narrow Body
  • 318E-04 - SOT-223 (TO-261) 4 LEAD
  • 369C - DPAK-3 6.10x6.54x2.28, 2.29P
• Reference Designs
  • TND6379/D - SEC-6K6W-CLLC-GEVK: 6.6/7.2 kW On Board Charger (OBC) CLLC Reference Design Kit Control Board (SEC-6K6W-CLLC-CTRL-GEVB)
  • TND6378/D - SEC-6K6W-CLLC-GEVK: 6.6/7.2 kW On Board Charger (OBC) CLLC Reference Design Kit Power Board (SEC-6K6W-CLLC-PB-GEVB)
• System Solution Guide
  • SSG8217/D - 48V Powernet Trends
  • SSG8212/D - 48V Starter Generator
  • SSG8222/D - USB-C Battery Charger
  • SSG8205/D - 48V-12V DC-DC Converter
  • SSG8223/D - Zonal Architecture
  • SSG8215/D - Battery-powered Tools
  • SSG8201/D - On Board Charger (OBC)
• Video
  • WVD18030/D - Achieving Peak Performance with onsemi PowerTrench® MOSFETs
  • WVD18033/D - Transforming Automotive Power with PowerTrench® T10 MOSFETs
  • WVD17848/D - High-Side SmartFET Demonstration Console
  • WVD17887/D - SmartFETs for Zonal Architecture in Automotive Electronics Applications
• White Papers
  • TND6462/D - Powering Innovation: 12 V Electric Power Steering with POWERTRENCH® MOSFET in Top Cool Package
  • TND6430/D - Approaching a Scalable and Reliable Automotive Design with Smart Power Switching

Evaluation Boards/Kits

• NCV8412ADGEVB

  NCV8412 SOIC8 EVAL BOARD

• NCV8412ASGEVB

  NCV8412 SOT223 EVAL BOARD

• NCV8413DTGEVB

  NCV8413 DPAK3 EVAL BOARD

• NCV8415DTGEVB

  Self-Protected Low Side Driver with In-Rush Current Management Demo Board

• NCV8415SGEVB

  Self-Protected Low Side Driver with In-Rush Current Management Demo Board

FAQs