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NXP Semiconductors MC33816MAE
- Part No.:
- MC33816MAE
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 64-LQFP Exposed Pad
- Datasheet:
-
MC33816MAE.pdf
- Description:
- INJECTOR GATE DRIVERS
- Quantity:
- Payment:
- Shipping:
Inventory:2,350
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Product details
Overview
MC33816MAE from NXP Semiconductors is a programmable SMARTMOS solenoid controller IC for precision diesel/gasoline direct injection systems, featuring five high-side and seven low-side external MOSFET pre-drivers, integrated VDS and current sensing, SPI diagnostics, and a programmable End-of-Injection (EOI) measurement function exclusive to this variant. It operates across 5.0–32 V battery input with up to 72 V pre-drive capability and supports 100 kHz PWM switching.
For engineers reviewing the MC33816MAE datasheet, MC33816MAE pinout, MC33816MAE application, or MC33816MAE equivalent, this page delivers verified technical context, exact pin functions, real-world powertrain use cases, and validated alternative options - all grounded in NXP's Rev. 10.0 datasheet and orderable-part specifications.
Technical Context
The MC33816MAE implements four independent microcores managing gate drive, fault detection, and protection logic concurrently. Each high-side channel includes dedicated charge pump circuitry enabling 100% duty cycle operation, while low-side drivers support DC-DC converter control via G_LS7 and VSENSEP4/VSENSEN4 inputs.
Its programmable EOI measurement function (exclusive to MC33816MAE) uses internal timing and current-sense comparators to detect precise injector closure events. Fault annunciation occurs via SPI register reads and IRQB assertion, with eight selectable VDS monitoring thresholds and four current sense modules supporting real-time load diagnostics.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery voltage range | 5.0 V to 32 V - supports full automotive cold-crank (5 V) through load-dump (40 V with external VCCP) conditions without external regulators. |
| Pre-drive operating voltage | Up to 72 V - enables direct connection to high-voltage solenoid loads in 24 V truck and industrial powertrain systems. |
| PWM frequency capability | Up to 100 kHz - sufficient for high-resolution fuel metering in modern common-rail diesel injectors. |
| Slew rate control | Four selectable slew rates per driver - allows EMI optimization and dv/dt control during turn-on/turn-off transitions. |
| VDS monitoring thresholds | Eight programmable levels - enables configurable overvoltage detection on high-side source pins (S_HS1–S_HS5) for open-load and short-to-battery fault identification. |
| EOI measurement | Programmable End-of-Injection timing function - exclusive to MC33816MAE; uses internal current-sense comparators and microcore timing to capture injector de-energization with µs-level resolution. |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood engine control unit (ECU) placement in gasoline and diesel powertrains. |
Pinout & Package
MC33816MAE is housed in a 64-pin LQFP package with exposed thermal pad (PGND), optimized for high-power solenoid driver thermal dissipation in automotive ECU modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G_HS1–G_HS5 | High-side gate drive outputs | Drive logic-level N-channel MOSFET gates; each with independent charge pump and slew-rate control for precise solenoid energization timing. |
| G_LS1–G_LS6, G_LS7 | Low-side gate drive outputs | G_LS1–G_LS6 control standard injector low-side switches; G_LS7 drives DC-DC converter low-side MOSFET for VBOOST regulation. |
| S_HS1–S_HS5 | High-side source monitors | Provide feedback for VDS monitoring and open-load detection; referenced to PGND and used with internal comparators. |
| VSENSEP1–VSENSEP4 / VSENSEN1–VSENSEN4 | Current sense differential inputs | Four independent current-sense channels: three for solenoid phase currents, one (VSENSEP4/VSENSEN4) dedicated to DC-DC converter current measurement. |
| START1–START6 | Trigger/flag I/Os | Configurable as actuator start triggers or diagnostic flag bus lines; support synchronized multi-injector firing sequences. |
| IRQB | Interrupt output | Active-low open-drain interrupt signaling faults (overcurrent, overtemperature, VDS violation) or EOI event completion to host MCU. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable EOI measurement | Exclusive to MC33816MAE; enables closed-loop injection timing control by detecting exact solenoid current decay zero-crossing with configurable delay and filtering. |
| Four independent microcores | Execute concurrent gate drive, diagnosis, and protection routines without CPU intervention - reduces host MCU overhead and improves real-time response. |
| Dual internal voltage regulators | Generates regulated 7.0 V (VCCP) and 2.5 V (VCC2P5) supplies; includes overvoltage/undervoltage monitoring and automatic shutdown to protect downstream circuitry. |
| Encryption for microcode protection | Prevents unauthorized readout or modification of embedded control firmware - critical for OEM proprietary solenoid timing algorithms. |
| Integrated 1.0 MHz backup clock | Ensures reliable operation during external clock failure; maintains SPI communication, watchdog timing, and basic microcore execution. |
Applications
| Diesel Direct Injection (DDI) | Gasoline Direct Injection (GDI) |
|---|---|
|
Use Scenario: High-pressure common-rail fuel system with piezoelectric or solenoid injectors requiring precise, multi-pulse injection events per combustion cycle. IC Role / Device Role / Timing Role: Solenoid controller managing high-side pre-drive for injector hold coils and low-side switching for return paths; executes EOI measurement to synchronize post-injection pilot shots. Use Value: Enables sub-millisecond EOI detection accuracy, improving combustion efficiency and reducing NOx emissions in Euro 6/VI-compliant engines. |
Use Scenario: Turbocharged GDI engine with dual-injection strategy (port + direct) demanding fast, thermally robust injector control under high under-hood temperatures. IC Role / Device Role / Timing Role: Gate driver for high-speed solenoid injectors; uses VDS monitoring to detect coil open-circuit faults during cranking and hot restart conditions. Use Value: Maintains full functionality at 125 °C ambient and supports 100 kHz PWM for rapid valve actuation, enabling stratified charge modes. |
| Heavy-Duty Transmission Control | Industrial Hydraulic Valve Control |
|
Use Scenario: 12-speed automated manual transmission using solenoid-actuated clutch and gear-shift valves in Class 8 trucks. IC Role / Device Role / Timing Role: Pre-driver for multiple high-current solenoids; leverages SPI diagnostics and current sensing to validate actuator engagement before gear engagement. Use Value: Reduces mechanical wear by confirming solenoid current rise time and peak amplitude prior to mechanical action, preventing false shifts. |
Use Scenario: Off-highway construction equipment with 24 V hydraulic proportional valves requiring robust, field-replaceable driver modules. IC Role / Device Role / Timing Role: High-voltage (up to 72 V) gate driver for industrial N-channel MOSFETs; uses external VCCP supply to sustain operation during 32 V battery transients. Use Value: Eliminates need for discrete high-side drivers and external regulators, cutting BOM cost and PCB area in compact valve manifolds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solenoid controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33816AE | Identical architecture and pinout; lacks programmable EOI measurement function and associated microcode support. | Supports standard solenoid drive but cannot perform closed-loop injection timing verification or pilot-shot synchronization. | Select MC33816AE only when EOI measurement is not required; otherwise MC33816MAE is mandatory for timing-critical DDI/GDI calibration. |
| MC33972TAER2 | 8-channel high-side switch (non-pre-driver); no low-side drivers, no microcores, no EOI function, no SPI diagnostics - purely analog fault-protected switch. | Used for simpler on/off solenoid control (e.g., glow plugs, purge valves); lacks PWM, current sensing, or timing measurement capability. | Choose MC33972TAER2 for cost-sensitive, non-timing-critical high-side loads; MC33816MAE is required for precision injector control with diagnostics. |
Compared with MC33816AE and MC33972TAER2, the MC33816MAE uniquely integrates programmable EOI measurement, concurrent microcore processing, and dual-domain (high/low-side) pre-driving - making it the only option for closed-loop, high-frequency solenoid control in modern powertrain ECUs.
Availability
MC33816MAE is available at Aetrix Electronics and suitable for diesel direct injection, gasoline direct injection, and heavy-duty transmission control applications requiring stable component supply, automotive-grade qualification, and long-term lifecycle support.
Supply support for MC33816MAE 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 applications, with deep expertise in automotive power management and embedded control.
The MC33816MAE belongs to NXP's SMARTMOS solenoid controller product line, designed specifically for high-reliability, high-precision fuel and valve actuation in next-generation powertrain systems - emphasizing integrated diagnostics, functional safety readiness, and programmable timing control.
FAQ
What makes MC33816MAE different from MC33816AE?
The MC33816MAE includes a programmable End-of-Injection (EOI) measurement function not present in MC33816AE. This feature uses internal current-sense comparators and microcore timing to detect precise solenoid de-energization events - essential for closed-loop injection timing in diesel and gasoline direct injection systems. All other electrical and pinout characteristics remain identical between the two variants.
Does MC33816MAE support 24 V truck powertrain systems?
Yes, MC33816MAE supports 24 V systems via external VCCP supply configuration. When VBATT exceeds 18 V, an external 7.0 V regulator must feed VCCP to limit internal power dissipation. The device tolerates up to 32 V VBATT (normal), 36 V (broken alternator), and 58 V (load dump with external VCCP), meeting ISO 16750-2 requirements for commercial vehicle applications.
How does MC33816MAE handle fault detection and reporting?
MC33816MAE performs real-time fault detection using four current sense modules, eight programmable VDS thresholds, and internal voltage/temperature monitors. Faults are reported via SPI register reads and asserted on the IRQB pin. Each microcore independently manages diagnostics for its assigned drivers, enabling concurrent fault logging without host MCU polling overhead.
Can MC33816MAE drive both high-side and low-side MOSFETs simultaneously?
Yes, MC33816MAE integrates five high-side pre-drivers (G_HS1–G_HS5) and seven low-side pre-drivers (G_LS1–G_LS7). G_LS7 is specifically configured for DC-DC converter control, while G_LS1–G_LS6 drive standard solenoid return paths. All drivers support independent PWM, slew-rate selection, and fault monitoring - enabling full half-bridge or multi-phase solenoid control topologies.
Is MC33816MAE qualified for automotive AEC-Q100 Grade 0 or Grade 1?
MC33816MAE is qualified to AEC-Q100 Grade 1 (−40 °C to +125 °C), matching its specified operating temperature range. It meets stress test requirements for automotive powertrain applications including HTOL, TCT, and ESD (HBM ±4 kV on VBOOST/VBATT pins). Grade 0 qualification is not claimed in the official datasheet Rev. 10.0.
MC33816MAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-LQFP Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Applications:
- Solenoid Controller
- Current - Supply:
- 46mA
- Voltage - Supply:
- 5V ~ 32V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 64-HLQFP (10x10)
MC33816MAE FAQ
1.How can I place an order for MC33816MAE through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33816MAE 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 MC33816MAE reliable?
The price and inventory of MC33816MAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33816MAE is usually 5 days.
3.What payment methods are accepted for MC33816MAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33816MAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33816MAE?
MC33816MAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33816MAE 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 MC33816MAE?
For technical support, including MC33816MAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33816MAE requirements.
6.How does Aetrix verify that MC33816MAE is sourced from the original manufacturer or authorized distributors?
All MC33816MAE 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 MC33816MAE meets industry standards.
7.What is the process for return or replacement of MC33816MAE?
All MC33816MAE units undergo pre-shipment inspection (PSI). If there is an issue with MC33816MAE, 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 MC33816MAE part is unused and in its original packaging.
Return procedure for MC33816MAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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