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NXP Semiconductors MC33AR6000BGWS
- Part No.:
- MC33AR6000BGWS
- Manufacturer:
- NXP Semiconductors
- Category:
- Special Purpose Regulators
- Package:
- -
- Datasheet:
-
MC33AR6000BGWS.pdf
- Description:
- ALTERNATOR REGULATOR, 14V 12A, L
- Quantity:
- Payment:
- Shipping:
Inventory:4,212
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Product details
Overview
MC33AR6000BGWS from NXP Semiconductors is an automotive alternator regulator IC with integrated high-side MOSFET, internal freewheeling diode, and LIN 2.1 physical layer interface. It regulates battery voltage (10.6–16 V setpoint) by controlling rotor excitation current up to 12.0 A, enables load response control (LRC), and reports real-time diagnostics-including die temperature, alternator speed, and excitation current-via LIN to the ECU. Used in engine bay-mounted alternators for 12 V vehicle electrical systems.
For engineers reviewing the MC33AR6000BGWS datasheet, MC33AR6000BGWS pinout, MC33AR6000BGWS application, or MC33AR6000BGWS equivalent, key selection criteria include its −40 °C to +150 °C operating junction temperature, die-level packaging for direct integration into alternator modules, LIN-configurable regulation parameters, and integrated overcurrent/thermal protection with 170 °C shutdown threshold.
Technical Context
The MC33AR6000BGWS implements a digital regulation loop using phase input (PH) for alternator speed sensing and self-start detection, combined with ADC-based battery voltage feedback from the B+A supply pin. Its high-side field driver uses charge-pump gate control and features programmable fault qualification delay (400 ms typical) and excitation short-circuit threshold (8.0–13.5 A).
LIN communication operates per ISO 17987-2:2016 (LIN 2.1), supporting 10.4 kBaud and 20 kBaud bit rates with configurable frame versions (A–E) selected via OTP fuses. The device supports both master-controlled regulation and standalone self-start mode, with wake-up triggered by PH signal amplitude crossing thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Regulation voltage range | 10.6 V to 16.0 V - digitally programmable setpoint for battery charging across vehicle operating conditions |
| Max excitation current | 12.0 A - peak rotor coil drive capability with internal RDS(on) ≤ 100 mΩ at 150 °C |
| Operating junction temp | −40 °C to +150 °C - validated for under-hood alternator mounting without external heatsink |
| LIN interface standard | LIN 2.1 physical layer - compliant with ISO 17987-2:2016, including bus fault tolerance and ground-disconnection resilience |
| Regulation frequency | 170–230 Hz - PWM switching rate optimized for alternator field coil inductance and thermal management |
| Thermal shutdown | 170 °C with 10 °C hysteresis - protects against sustained overload or cooling failure in sealed alternator housings |
| Phase input range | −24 V to +40 V - withstands alternator stator transients and negative spikes during load dump |
Pinout & Package
MC33AR6000BGWS is supplied in die form (no leadframe or molded package), intended for direct die attach within alternator assemblies. Die dimensions and pad layout are defined per NXP's internal mechanical specification; thermal and electrical performance assumes proper substrate bonding and heat spreading.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EXC | High-side excitation output | Drives rotor coil; integrates freewheeling diode and current sensing for closed-loop control |
| B+A | Main power supply & voltage sense | Connects to battery positive; supplies internal circuitry and provides regulation feedback reference |
| GND | Power ground | Common return for power stage, analog blocks, and LIN transceiver; critical for noise immunity |
| BUS | LIN bus I/O | Single-wire LIN physical interface with built-in pull-up (20–60 kΩ) and ESD protection (±10 kV air discharge) |
| PH | Alternator phase input | Monitors stator winding AC signal for speed measurement, self-start detection, and boost activation |
Key Features
| Feature | Design Value |
|---|---|
| Integrated high-side field driver | Eliminates need for external MOSFET and gate driver, reducing BOM count and PCB space in compact alternator modules |
| LIN-configurable regulation | Enables ECU-dynamic adjustment of voltage setpoint, LRC ramp time, and excitation current limit without hardware change |
| Real-time diagnostic reporting | Provides ECU with measured excitation current, die temperature, alternator speed, and battery voltage via LIN frames |
| Self-start capability | Autonomously initiates regulation when PH signal exceeds 800 mVPP, enabling operation without ECU wake-up command |
| OTP programmability | One-time fuse configuration allows factory tuning for specific alternator models, eliminating post-production calibration |
Applications
| Engine Start-Stop Systems | 12 V Mild Hybrid Alternators |
|---|---|
Use Scenario: Regulates battery voltage during frequent engine restarts and extended idle-off periods to maintain 12 V system stability. IC Role / Device Role / Timing Role: Alternator voltage regulator with LIN-controlled LRC to rapidly respond to sudden load changes from HVAC, infotainment, or ADAS modules. Use Value: Prevents brownouts during cranking by dynamically adjusting excitation duty cycle based on real-time battery voltage and alternator speed feedback. | Use Scenario: Controls alternator output during regenerative braking and electric assist modes in P0 mild hybrid architectures. IC Role / Device Role / Timing Role: High-accuracy field controller that synchronizes excitation timing with crankshaft position via PH input to optimize energy recovery. Use Value: Enables >95% alternator efficiency at partial loads through precise 170–230 Hz PWM regulation and thermal-aware current limiting. |
| Commercial Vehicle Alternators | Off-Highway Equipment Charging |
Use Scenario: Maintains stable 12 V supply across wide ambient temperature ranges (−40 °C to +150 °C) in heavy-duty truck alternators. IC Role / Device Role / Timing Role: Robust field driver with integrated thermal shutdown (170 °C) and load-dump tolerant inputs (40 V transient on B+A). Use Value: Eliminates external TVS and thermal sensors, reducing failure points in harsh vibration and thermal cycling environments. | Use Scenario: Powers auxiliary systems (hydraulic controls, lighting, telematics) in construction and agricultural machinery with variable engine speeds. IC Role / Device Role / Timing Role: Self-starting regulator that initiates charging at ≥504 RPM without ECU intervention, using PH signal amplitude detection. Use Value: Ensures reliable low-speed charging down to 504 RPM with 100 RPM hysteresis, preventing battery depletion during low-RPM operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar alternator regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33AR6000BGT | TO-220 package; rated for −40 °C to +125 °C junction temperature; same die functionality but lower max operating temperature | Suitable for alternator designs with external heatsinking and less extreme thermal environments | Select MC33AR6000BGT when module-level thermal design allows TO-220 mounting and full 150 °C operation is not required |
| TL866C | Standalone LIN slave node with no integrated field driver; requires external high-side switch and discrete current sensing | Used in legacy alternator platforms where field driver is implemented separately for serviceability or cost segmentation | Choose TL866C only when existing architecture separates regulation logic from power stage, and design tolerates added component count |
Compared with MC33AR6000BGT, the MC33AR6000BGWS offers higher junction temperature rating (+150 °C vs. +125 °C) and die-level integration for direct alternator module embedding, while TL866C lacks integrated power switching and requires external components to achieve comparable functionality.
Availability
MC33AR6000BGWS is available at Aetrix Electronics and suitable for automotive alternator modules, engine start-stop systems, and 12 V mild hybrid charging applications requiring stable component supply across extended temperature and high-reliability automotive lifecycles.
Supply support for MC33AR6000BGWS 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 specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with leadership in automotive power management and communication interfaces.
The AR6000 product line was designed specifically for intelligent alternator regulation in modern 12 V vehicle electrical systems, integrating LIN control, thermal resilience, and self-diagnostic capabilities into a single die.
FAQ
What is the maximum excitation current supported by the MC33AR6000BGWS?
The MC33AR6000BGWS supports a maximum excitation current of 12.0 A, with short-circuit protection triggering between 8.0 A and 13.5 A depending on OTP configuration. This current drives the alternator rotor coil directly via its integrated high-side MOSFET, which maintains RDS(on) ≤ 100 mΩ at 150 °C junction temperature, ensuring efficient field control under thermal stress.
Does the MC33AR6000BGWS require an external freewheeling diode?
No, the MC33AR6000BGWS includes an internal freewheeling diode between the EXC and GND pins, eliminating the need for an external diode. This diode handles recirculation current during PWM off-time, supports peak currents up to 12 A, and withstands reverse voltages up to +40 V-critical for managing inductive kickback from the rotor coil without additional components.
How does the MC33AR6000BGWS handle LIN communication during battery voltage transients?
The MC33AR6000BGWS maintains LIN communication integrity during battery transients via bus-level fault tolerance: it operates with VBUS from 8.0 V to 18 V, tolerates ground disconnection (±1.0 mA leakage), and sustains bus function during VBAT disconnection (≤100 μA leakage). Its LIN physical layer complies with ISO 17987-2:2016, ensuring robustness against load dump and cold-crank events that affect the B+A supply.
Can the MC33AR6000BGWS operate without an ECU connection?
Yes, the MC33AR6000BGWS supports standalone self-start mode: when the PH pin detects phase signal amplitude exceeding 800 mVPP, it autonomously initiates regulation without LIN commands. In this mode, it uses factory-programmed OTP settings for voltage setpoint and LRC, enabling basic alternator functionality even if the ECU is inactive or disconnected.
What thermal protection features are implemented in the MC33AR6000BGWS?
The MC33AR6000BGWS incorporates thermal shutdown at 170 °C with 10 °C hysteresis, plus thermal compensation of regulation parameters across −40 °C to +150 °C. Its die-level packaging allows direct thermal coupling to the alternator housing, and the shutdown mechanism disables excitation until junction temperature falls below 160 °C-preventing damage during sustained overload or cooling failure in sealed alternator enclosures.
MC33AR6000BGWS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Applications:
- -
- Voltage - Input:
- -
- Number of Outputs:
- -
- Voltage - Output:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
MC33AR6000BGWS FAQ
1.How can I place an order for MC33AR6000BGWS through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33AR6000BGWS 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 MC33AR6000BGWS reliable?
The price and inventory of MC33AR6000BGWS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33AR6000BGWS is usually 5 days.
3.What payment methods are accepted for MC33AR6000BGWS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33AR6000BGWS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33AR6000BGWS?
MC33AR6000BGWS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33AR6000BGWS 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 MC33AR6000BGWS?
For technical support, including MC33AR6000BGWS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33AR6000BGWS requirements.
6.How does Aetrix verify that MC33AR6000BGWS is sourced from the original manufacturer or authorized distributors?
All MC33AR6000BGWS 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 MC33AR6000BGWS meets industry standards.
7.What is the process for return or replacement of MC33AR6000BGWS?
All MC33AR6000BGWS units undergo pre-shipment inspection (PSI). If there is an issue with MC33AR6000BGWS, 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 MC33AR6000BGWS part is unused and in its original packaging.
Return procedure for MC33AR6000BGWS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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