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NXP Semiconductors MC33GD3100A3EK
- Part No.:
- MC33GD3100A3EK
- Manufacturer:
- NXP Semiconductors
- Category:
- Gate Drivers
- Package:
- 32-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
MC33GD3100A3EK.pdf
- Description:
- IC GATE DRVR HALF-BRIDGE 32SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,921
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Product details
Overview
MC33GD3100A3EK from NXP Semiconductors is a single-channel, galvanically isolated IGBT/SiC gate driver with 3.3 V logic interface, 15 A peak source/sink capability, integrated active Miller clamp, and ASIL D functional safety compliance for automotive traction inverters. It supports rail-to-rail gate voltage control (−8 V to +18 V), real-time VGE monitoring, and autonomous two-level turn-off during short-circuit events.
For engineers reviewing the MC33GD3100A3EK datasheet, MC33GD3100A3EK pinout, MC33GD3100A3EK application, or MC33GD3100A3EK equivalent, this page delivers verified technical context, exact pin functions per domain, safety-critical fault response behavior, and validated alternatives for high-reliability EV powertrain designs.
Technical Context
The MC33GD3100A3EK implements dual-domain architecture: low-voltage (LV) domain (pins 1–16, referenced to GND1) handles SPI configuration, PWM input, and interrupt reporting; high-voltage (HV) domain (pins 17–32, referenced to GND2) delivers isolated gate drive via GH (15 A source), GL (15 A sink), and AMC (active Miller clamp). Magnetic coupling enables die-to-die communication across 8 kV reinforced isolation.
It integrates CMTI > 100 V/ns, programmable UVLO on VSUP and VCC, DESAT/ISENSE/TSENSEA analog sensing with 10-bit ADC, and mandatory deadtime enforcement. The 3.3 V VDD variant requires VSUP > VSUPUV_TH (battery-supplied); external VDD powering is prohibited per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDD Logic Supply | 3.3 V - powers LV domain logic (SPI, PWM, INTB); must be derived internally from VSUP; no external 3.3 V supply allowed. |
| Isolation Rating | 5000 Vrms/1 min (UL 1577), 8 kV surge (DIN V VDE V 0884-10) - enables safe operation in 1200 V DC-link systems. |
| Peak Gate Drive | ±15 A - sustains 2 µs pulses for fast SiC switching; supports <40 kHz PWM with soft shutdown current limiting. |
| Operating Temp | −40 °C to 125 °C (TJ) - qualified per AEC-Q100 Grade 1 for under-hood automotive environments. |
| Functional Safety | ASIL D ISO 26262 certified - includes built-in self-test, continuous watchdog, VGE cycle-by-cycle monitoring, and fail-safe state management. |
| Supply Voltage Range | VCC = 15–18 V, VEE = −5 to −8 V (referenced to GND2) - enables robust negative gate bias for IGBT/SiC turn-off immunity. |
| CMTI | >100 V/ns - prevents false triggering during high dV/dt transients in high-power inverter half-bridges. |
Pinout & Package
MC33GD3100A3EK uses a 32-pin wide-body SOIC package (0.65 mm pitch, outline 98ARH99137A) with dual ground domains: GND1 (LV domain, pins 5 & 16) and GND2 (HV domain, pins 17 & 32). Pin assignments are strictly partitioned - LV pins (1–16) handle control and diagnostics; HV pins (17–32) manage gate drive, sensing, and power.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSUP | LV primary supply input | Battery-referenced input (min > VSUPUV_TH); powers all LV circuitry including VDD generation - no external VDD allowed for A3EK variant. |
| PWM / PWMALT | Digital gate control inputs | Active-high signals controlling IGBT on/off states; PWMALT enables complementary half-bridge control without external logic. |
| INTB | Fault interrupt output | Open-drain active-low signal latching critical faults (DESAT, overtemp, UVLO) for immediate MCU response. |
| GH / GL / AMC | HV gate drive outputs | GH: 15 A source for gate charging; GL: 15 A sink for primary discharge; AMC: dedicated low-impedance Miller clamp path to emitter. |
| ISENSE / TSENSEA / DESAT | Analog fault sensing inputs | Direct connection to IGBT/SiC sense terminals - enables sub-µs overcurrent detection (ISENSE), temperature monitoring (TSENSEA), and VCE desaturation (DESAT). |
| VCC / VEE / VCCREG | HV domain power supplies | VCC (15–18 V) and VEE (−5 to −8 V) set gate voltage rails; VCCREG is regulated 15 V output for stable gate drive under load variation. |
Key Features
| Feature | Design Value |
|---|---|
| Galvanic signal isolation | 8 kV reinforced isolation barrier enables safe LV/HV domain separation in 1200 V DC-link systems without optocouplers. |
| Active Miller Clamp (AMC) | Dedicated low-impedance transistor clamps gate to emitter during off-state, eliminating dV/dt-induced false turn-on in high-speed SiC switches. |
| Two-Level Turn-Off (2LTO) | Reduces gate voltage mid-fault to limit peak short-circuit current, preserving IGBT/SiC SOA during validation window before full shutdown. |
| SPI-configurable protection | Real-time reconfiguration of UVLO thresholds, DESAT delay, soft-shutdown current, and fault masking - enables system-specific safety tuning. |
| Integrated VGE monitoring | Cycle-by-cycle gate-emitter voltage measurement via internal ADC provides direct feedback for closed-loop gate drive integrity verification. |
Applications
| EV Traction Inverter | Onboard Charger (OBC) |
|---|---|
Use Scenario: High-power motor control in battery electric vehicles requiring ASIL D compliance and 1200 V SiC MOSFET switching. IC Role / Device Role / Timing Role: Single-channel isolated gate driver managing high-side IGBT/SiC in half-bridge topology with real-time DESAT and ISENSE fault capture. Use Value: Enables <400 ns fault response time and autonomous 2LTO, reducing IGBT/SiC stress during road-load short circuits without MCU intervention. |
Use Scenario: Bidirectional AC/DC conversion in 11 kW OBCs using interleaved totem-pole PFC with SiC switches. IC Role / Device Role / Timing Role: Isolated gate driver for high-frequency SiC MOSFETs in PFC stage, leveraging AMC to suppress Miller-induced shoot-through at 100+ kHz switching. Use Value: CMTI > 100 V/ns and rail-to-rail gate control ensure reliable operation despite high dv/dt noise from fast SiC transitions. |
| DC Fast Charging Module | Industrial Motor Drive |
Use Scenario: 150–350 kW DC fast chargers using parallel SiC modules with distributed gate driving. IC Role / Device Role / Timing Role: Primary gate driver providing synchronized soft shutdown and segmented drive wave shaping across multiple paralleled SiC devices. Use Value: Integrated VCCREG post-regulator maintains stable 15 V gate drive under varying input conditions, minimizing gate voltage droop during high-current transients. |
Use Scenario: High-reliability industrial servo drives operating in harsh environments with extended thermal cycling. IC Role / Device Role / Timing Role: Fault-tolerant gate driver with dual-sensing (TSENSEA + DESAT) and built-in self-test for predictive maintenance in factory automation systems. Use Value: AEC-Q100 Grade 1 qualification and −40 °C to 125 °C operation ensure long-term reliability in uncontrolled ambient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IGBT/SiC gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33GD3100EK | 5.0 V VDD logic interface; allows external VDD supply; identical HV domain specs and safety features. | Preferred when interfacing with 5 V MCUs or where separate VDD regulation simplifies board design. | Select MC33GD3100EK if system uses 5 V logic; avoid for new 3.3 V MCU designs due to higher VDD headroom requirements. |
| Si827x series (Silicon Labs) | Non-isolated gate driver IC with integrated isolators; 4 A peak drive; no integrated DESAT/ISENSE/ADC; no ASIL D certification. | Suitable for cost-sensitive industrial inverters without automotive safety mandates. | Choose Si827x only for non-automotive applications lacking functional safety requirements and needing lower gate drive current. |
Compared with MC33GD3100EK, the MC33GD3100A3EK trades external VDD flexibility for tighter integration with 3.3 V microcontrollers and reduced BOM count; versus Si827x, it delivers ASIL D compliance, 15 A drive, and integrated fault sensing - essential for automotive traction systems.
Availability
MC33GD3100A3EK is available at Aetrix Electronics and suitable for EV traction inverters, onboard chargers, DC fast charging modules, and industrial motor drives requiring stable component supply, automotive-grade lifecycle assurance, and functional safety traceability.
Supply support for MC33GD3100A3EK includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT markets.
The MC33GD3100A3EK belongs to NXP's GD3100 family of ASIL D-certified gate drivers, designed specifically for high-voltage, high-reliability power conversion in electric vehicle traction systems and renewable energy inverters.
FAQ
Can MC33GD3100A3EK be powered solely by a 3.3 V supply on the VDD pin?
No. The MC33GD3100A3EK cannot be powered exclusively by VDD = 3.3 V. Its VDD pin is an internally generated supply derived from VSUP; VSUP must be supplied with a voltage exceeding VSUPUV_TH (typically vehicle battery). External 3.3 V connection to VDD is prohibited and may damage the device.
What is the maximum switching frequency supported by MC33GD3100A3EK?
The MC33GD3100A3EK supports a maximum PWM frequency of 40 kHz, as specified in its absolute maximum ratings. This limit ensures reliable operation of its 15 A gate drive stage, integrated soft shutdown, and fault detection circuitry under thermal and timing constraints.
Does MC33GD3100A3EK support negative gate voltage for IGBT turn-off?
Yes. MC33GD3100A3EK supports negative gate drive via the VEE pin (−5 V to −8 V referenced to GND2), enabling robust IGBT turn-off immunity against dV/dt-induced false triggering. The AMC pin further enhances immunity by actively clamping the gate to emitter during off-state.
How does MC33GD3100A3EK report faults to the host controller?
The MC33GD3100A3EK reports faults via two independent paths: the INTB pin provides immediate active-low latched interrupt signaling for critical events (DESAT, overtemp, UVLO), while the SPI interface delivers detailed fault register contents, status flags, and diagnostic data for comprehensive system-level analysis.
Is MC33GD3100A3EK compatible with silicon carbide (SiC) MOSFETs?
Yes. MC33GD3100A3EK is explicitly qualified for SiC MOSFETs, supporting gate voltages up to +18 V and −8 V, CMTI > 100 V/ns, and fast propagation delay - all critical for reliable high-frequency SiC switching in traction inverters and fast chargers.
MC33GD3100A3EK Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Driven Configuration:
- Half-Bridge
- Channel Type:
- Single
- Number of Drivers:
- 1
- Gate Type:
- IGBT, N-Channel MOSFET
- Voltage - Supply:
- 3.3V
- Logic Voltage - VIL, VIH:
- -
- Current - Peak Output (Source, Sink):
- 15A, 15A
- Input Type:
- -
- High Side Voltage - Max (Bootstrap):
- -
- Rise / Fall Time (Typ):
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOIC
MC33GD3100A3EK FAQ
1.How can I place an order for MC33GD3100A3EK through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33GD3100A3EK on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MC33GD3100A3EK reliable?
The price and inventory of MC33GD3100A3EK are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33GD3100A3EK is usually 5 days.
3.What payment methods are accepted for MC33GD3100A3EK?
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4.How is shipping managed for MC33GD3100A3EK?
MC33GD3100A3EK orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33GD3100A3EK order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MC33GD3100A3EK?
For technical support, including MC33GD3100A3EK datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33GD3100A3EK requirements.
6.How does Aetrix verify that MC33GD3100A3EK is sourced from the original manufacturer or authorized distributors?
All MC33GD3100A3EK products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MC33GD3100A3EK meets industry standards.
7.What is the process for return or replacement of MC33GD3100A3EK?
All MC33GD3100A3EK units undergo pre-shipment inspection (PSI). If there is an issue with MC33GD3100A3EK, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MC33GD3100A3EK part is unused and in its original packaging.
Return procedure for MC33GD3100A3EK:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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