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NXP Semiconductors MC33911G5AC
- Part No.:
- MC33911G5AC
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 32-LQFP
- Datasheet:
-
MC33911G5AC.pdf
- Description:
- IC SYSTEM BASIS CHIP 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,758
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Product details
Overview
MC33911G5AC from NXP Semiconductors is a LIN System Basis Chip (SBC) with integrated DC motor pre-driver, 5.0 V/60 mA LDO regulator, one protected high-side switch (HS1), two protected low-side switches (LS1/LS2), LIN 2.0/2.1 transceiver, and SPI-controlled diagnostics. It operates across -40 °C to 125 °C in 32-pin LQFP and targets automotive body electronics requiring robust wake-up, fault reporting, and PWM-controlled actuation.
For engineers reviewing the MC33911G5AC datasheet, MC33911G5AC pinout, MC33911G5AC application, or MC33911G5AC equivalent, this page delivers verified technical context, exact pin roles, real-world automotive use cases, and validated alternative parts for window lift, mirror control, door lock, and sunroof subsystems.
Technical Context
The MC33911G5AC integrates LIN physical layer compliant with SAE J2602-2 and ISO 17987-4, featuring configurable waveshaping and ±6.0 kV ESD protection on LIN pin. Its SPI interface supports up to 4.0 MHz operation with full-duplex read/write access to diagnostic registers including HS1CL, LSxOP, and LINOT flags.
Three operating modes-Normal (full functionality), Sleep (VDD off, wake via LIN/L1/L2/cyclic sense), and Stop (VDD on, limited current)-are managed by internal state machine with programmable window watchdog (8.5–205 ms via WDCONF resistor). Analog inputs L1/L2 support dual-mode digital wake-up and analog sensing via selectable 1:1 or 1:3.6 divider into ADOUT0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| LIN Compliance | LIN 2.0/2.1 and SAE J2602-2 compliant; supports up to 100 kbps with configurable waveshaping. |
| VDD Regulator | 5.0 V ±2.5% output, 60 mA max current in Normal mode; dropout voltage ≤0.25 V at 50 mA load. |
| HS1 Switch | High-side driver with RDS(on) ≤7.0 Ω @ 25 °C, current limit 60–250 mA, short-circuit detection at VSUP −2.0 V. |
| LS1/LS2 Switches | Two low-side drivers, RDS(on) ≤2.5 Ω @ 25 °C, current limit 160–350 mA, active energy clamp up to VSUP +5.0 V. |
| SPI Interface | Full-duplex, 4.0 MHz max clock rate; timing parameters fully characterized (tPSCLK = 250 ns, tVALID ≤75 ns). |
| Operating Temp | -40 °C to +125 °C ambient; junction temperature shutdown at 150 °C with 13 °C hysteresis. |
| ESD Protection | ±6.0 kV HBM on LIN pin per IEC 61000-4-2 (150 pF/330 Ω); ±8.0 kV on all other pins. |
Pinout & Package
MC33911G5AC uses a 32-pin LQFP package (9.0 mm × 9.0 mm, 0.8 mm pitch) with exposed thermal pad. Pin functions are validated per NXP MC33911 Rev. 10.0 datasheet pages 23–28.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| HS1 (Pin 25) | High-side output | Drives DC motor or relay coil directly; supports PWM, open-load detection, and thermal shutdown. |
| LS1/LS2 (Pins 17, 19) | Low-side outputs | Control ground-return loads; include active clamp, overcurrent flagging, and 150 mA continuous rating. |
| LIN (Pin 13) | LIN bus interface | Single-wire bidirectional transceiver with J2602-compliant undervoltage threshold (5.0–6.0 V) and wake-up capability. |
| L1/L2 (Pins 22, 23) | Wake-up/analog inputs | Dual-role pins: digital wake source (with 33 kΩ series resistor) or analog-sensed via internal 1:1 or 1:3.6 divider to ADOUT0. |
| VSENSE (Pin 29) | Battery voltage monitor | Direct connection to battery line; self-protected against reverse polarity; 5.25× internal divider yields accurate VADOUT0 reading. |
| VDD (Pin 31) | 5.0 V regulator output | Supplies MCU and peripherals; requires external 2–100 µF capacitor with 0.1–10 Ω ESR for stability. |
| WDCONF (Pin 12) | Watchdog configuration | Accepts external resistor (20–200 kΩ) to set window watchdog period from 8.5 ms to 205 ms. |
| RST/IRQ (Pins 9, 10) | Reset/interrupt outputs | Active-low bidirectional reset (RST) and interrupt (IRQ) signals for system coordination and fault reporting. |
Key Features
| Feature | Design Value |
|---|---|
| LIN Transceiver with J2602 Support | Enables conformance testing per SAE J2602-2, including undervoltage detection (5.0–6.0 V) and deglitching (35–70 µs). |
| Configurable Window Watchdog | Hardware-based timing safety monitor with user-selectable period (8.5–205 ms) and independent reset/interrupt signaling. |
| Dual-Mode Analog/Digital Inputs (L1/L2) | Each pin serves as wake-up input or analog sensor input with selectable 1:1 or 1:3.6 division ratio into ADOUT0 multiplexer. |
| Fault-Reporting SPI Interface | Real-time readout of 12+ diagnostic flags (e.g., HS1CL, LSxOP, LINOT, VBATFAIL) via standard SPI commands without CPU polling overhead. |
| Thermal Protection Architecture | Independent overtemperature shutdown for HS1 (140–180 °C), LS1/LS2 (140–180 °C), and LIN (140–180 °C) with hysteresis. |
Applications
| Window Lift Control | Mirror Adjustment |
|---|---|
Use Scenario: Bidirectional DC motor control for power window glass movement with anti-pinch detection and position feedback. IC Role / Device Role / Timing Role: MC33911G5AC provides HS1-driven motor direction control, LS1/LS2 for brake/enable logic, LIN for ECU command interface, and VSENSE for battery health monitoring. Use Value: Integrated diagnostics eliminate need for external current sense resistors; PWM-capable outputs enable smooth speed ramping and stall detection. | Use Scenario: Dual-axis motor actuation for electric side-view mirror folding and tilt adjustment in automotive cabins. IC Role / Device Role / Timing Role: MC33911G5AC drives two independent motors via HS1 and LS1/LS2, uses LIN for master-slave communication, and monitors supply integrity via VDD and VSENSE. Use Value: Single-chip solution reduces BOM count and PCB area; thermal shutdown prevents damage during mechanical jam conditions. |
| Door Lock Actuation | Sunroof Motor Control |
Use Scenario: Solenoid or small DC motor activation for central locking/unlocking with tamper-resistant wake-up and status reporting. IC Role / Device Role / Timing Role: MC33911G5AC uses LS1/LS2 to drive solenoid coils, L1/L2 for door ajar sensing, LIN for CAN gateway relay, and IRQ for immediate fault alerting. Use Value: Built-in open-load detection confirms solenoid engagement; cyclic sense enables low-power door status polling without MCU wake-up. | Use Scenario: Precise bidirectional control of sunroof sliding and tilt mechanisms with obstruction detection and soft-stop behavior. IC Role / Device Role / Timing Role: MC33911G5AC applies PWM to HS1 and LS1/LS2 for variable-speed motor control, uses LIN for vehicle network integration, and reports overtemperature events via SPI. Use Value: Active energy clamping protects against inductive kickback; VDD regulator powers sunroof control MCU directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LIN SBC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33912G5AC | Same pinout and core functionality; adds second LIN transceiver and enhanced EMC immunity per updated J2602 test plan. | Required where dual-LIN node architecture or stricter RF immunity (e.g., premium vehicle platforms) is mandated. | Select MC33912G5AC when dual-bus topology or higher EMC margin is needed; otherwise MC33911G5AC remains optimal for cost-sensitive single-LIN nodes. |
| MC34911G5AC | Identical feature set but rated for -40 °C to +85 °C ambient; lower thermal resistance (RθJA = 56 °C/W vs. 85 °C/W) due to optimized package layout. | Suitable for non-under-hood applications such as interior lighting modules or center console controls where extended temperature range is unnecessary. | Choose MC34911G5AC for cabin-mounted modules with tighter thermal constraints and no under-hood exposure. |
Compared with MC33912G5AC and MC34911G5AC, the MC33911G5AC offers the broadest automotive temperature range (-40 °C to +125 °C) and highest thermal robustness for engine bay proximity, while maintaining lowest system-level BOM cost for single-LIN body control units.
Availability
MC33911G5AC is available at Aetrix Electronics and suitable for window lift, mirror switch, and door lock applications requiring stable component supply, long-term automotive qualification, and AEC-Q100 Grade 1 compliance.
Supply support for MC33911G5AC 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 leader focused on secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in automotive-grade mixed-signal ICs.
The MC33911G5AC belongs to NXP's System Basis Chip product line, engineered specifically for automotive body electronics to consolidate power regulation, communication, and actuator driving into a single AEC-Q100 qualified device.
FAQ
What is the maximum LIN data rate supported by the MC33911G5AC?
The MC33911G5AC supports LIN communication up to 100 kbps with configurable waveshaping circuitry. When waveshaping is disabled, higher data rates are achievable-though official specification guarantees only up to 100 kbps per LIN 2.0/2.1 and SAE J2602-2 conformance requirements. The MC33911G5AC implements precise threshold centers (0.5 × VSUP) and hysteresis (≤0.175 × VSUP) to ensure reliable bit sampling across voltage and temperature ranges.
Does the MC33911G5AC require external components for its VDD regulator?
Yes, the MC33911G5AC requires an external output capacitor on the VDD pin: 2.0 µF to 100 µF capacitance with ESR between 0.1 Ω and 10 Ω. This capacitor stabilizes the 5.0 V regulator under dynamic load conditions and ensures proper startup and transient response. Without it, the MC33911G5AC may fail to power external MCU logic or experience brownout resets during high-current switching events.
How does the MC33911G5AC handle wake-up from Sleep mode?
The MC33911G5AC wakes from Sleep mode (VDD off) via LIN bus activity, L1/L2 digital input transitions, cyclic sense pulses, or forced wake-up commands. Upon wake-up, it asserts IRQ and transitions to Normal mode within defined timing windows (e.g., tWUCS ≤80 µs after CS edge). All wake sources are independently maskable and reportable via SPI register bits, enabling selective power management in the MC33911G5AC-based system.
Can the MC33911G5AC drive a 12 V DC motor directly?
Yes-the MC33911G5AC can directly drive small 12 V DC motors using HS1 (50–60 mA continuous) and LS1/LS2 (150–160 mA continuous) outputs. For larger motors, external FETs are recommended. The MC33911G5AC includes PWM input (PWMIN), current limiting, open-load detection, and thermal shutdown to protect both itself and the motor. Its RDS(on) values (≤7.0 Ω HS1, ≤2.5 Ω LS1/LS2) ensure efficient conduction at typical automotive motor currents.
What is the purpose of the VSENSE pin on the MC33911G5AC?
The VSENSE pin on the MC33911G5AC provides direct measurement of battery voltage through an internal 5.25× resistor divider, delivering a scaled analog output to ADOUT0. It is self-protected against reverse battery connections and supports accurate battery health monitoring-even during cranking-without requiring external level-shifting circuitry. The MC33911G5AC uses this signal for VBATFAIL detection and system-level low-voltage reset coordination.
MC33911G5AC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- System Basis Chip
- Current - Supply:
- 4.5mA
- Voltage - Supply:
- 5.5V ~ 27V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-LQFP (7x7)
MC33911G5AC FAQ
1.How can I place an order for MC33911G5AC through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33911G5AC 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 MC33911G5AC reliable?
The price and inventory of MC33911G5AC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33911G5AC is usually 5 days.
3.What payment methods are accepted for MC33911G5AC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33911G5AC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33911G5AC?
MC33911G5AC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33911G5AC 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 MC33911G5AC?
For technical support, including MC33911G5AC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33911G5AC requirements.
6.How does Aetrix verify that MC33911G5AC is sourced from the original manufacturer or authorized distributors?
All MC33911G5AC 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 MC33911G5AC meets industry standards.
7.What is the process for return or replacement of MC33911G5AC?
All MC33911G5AC units undergo pre-shipment inspection (PSI). If there is an issue with MC33911G5AC, 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 MC33911G5AC part is unused and in its original packaging.
Return procedure for MC33911G5AC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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