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NXP Semiconductors MC33816AER2
- Part No.:
- MC33816AER2
- Manufacturer:
- NXP Semiconductors
- Category:
- Power Management - Specialized
- Package:
- 64-LQFP Exposed Pad
- Datasheet:
-
MC33816AER2.pdf
- Description:
- PROGRAMMABLE SOLENOID CONTROLLER
- Quantity:
- Payment:
- Shipping:
Inventory:3,417
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Product details
Overview
MC33816AER2 from NXP Semiconductors is a programmable SMARTMOS solenoid controller IC for precision engine valve and injector actuation. It integrates five high-side and seven low-side external MOSFET pre-drivers, dual internal voltage regulators (5 V and 7 V), four current-sense modules, VDS monitoring, and SPI-based fault annunciation. Designed for diesel/gasoline direct injection systems, it delivers deterministic gate drive with <100 ns latency and supports up to 100 kHz PWM switching at 30 nC load.
For engineers reviewing the MC33816AER2 datasheet, MC33816AER2 pinout, MC33816AER2 application, or MC33816AER2 equivalent, this page provides verified technical context, validated pin functions, confirmed automotive powertrain use cases, and two rigorously cross-checked alternative parts - all aligned to Rev. 10.0 (Feb 2023) specifications and NXP's official orderable part documentation.
Technical Context
The MC33816AER2 implements four independent microcores executing 93 microcode instructions to manage concurrent high-side/low-side gate drive, real-time current sensing (via four differential comparators), and VDS fault detection across 12 MOSFET channels. Its architecture separates logic domains: two microcore pairs each control dedicated Code RAM and Data RAM banks, enabling parallel execution of injector timing, diagnostics, and DC-DC converter regulation.
It features dual supply regulation - an internal 5 V regulator (VCC5) powering digital logic and a programmable 7 V regulator (VCCP) for gate drivers - with overvoltage/undervoltage monitoring on VBATT, VBOOST, and VCCP. Fault reporting occurs via SPI with eight selectable VDS thresholds and encrypted microcode protection against unauthorized reprogramming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Battery input range | 5.0 V to 32 V - supports 12 V automotive, 24 V truck, and jump-start/load-dump transients up to 58 V with external VCCP regulation. |
| Pre-driver operating voltage | Up to 72 V - enables direct connection to high-voltage solenoid loads without external level-shifting circuitry. |
| PWM frequency & drive strength | Up to 100 kHz at 30 nC - sufficient for fast-acting fuel injectors requiring sub-millisecond valve opening/closing control. |
| Slew rate control | Four selectable rates per channel - allows EMI optimization and dv/dt control during MOSFET switching transitions. |
| VDS monitoring thresholds | Eight programmable levels - enables precise short-circuit detection in solenoid windings under varying temperature and aging conditions. |
| Current sense inputs | Four differential analog inputs (VSENSEP1–4 / VSENSEN1–4) - supports simultaneous monitoring of injector currents and DC-DC converter inductor current. |
| Package | 64-pin LQFP with exposed pad - thermally optimized for engine bay mounting with RθJA = 27 °C/W on 4-layer PCB. |
Pinout & Package
MC33816AER2 is housed in a 64-pin LQFP package with exposed thermal pad (PGND). The package meets JEDEC J-STD-020C Pb-free reflow requirements and supports industrial temperature operation (−40 °C to +125 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G_HS1–G_HS5 | High-side gate drive outputs | Drive N-channel MOSFET gates with programmable slew rate; each paired with dedicated bootstrap (B_HSx) and source monitor (S_HSx) pins. |
| G_LS1–G_LS7 | Low-side gate drive outputs | Control seven N-channel low-side switches; G_LS7 drives the DC-DC converter low-side MOSFET. |
| VSENSEP1–4 / VSENSEN1–4 | Differential current sense inputs | Interface directly with shunt resistors to measure solenoid and DC-DC current; support dynamic ranges up to ±15 V for transient fault capture. |
| CSB / MOSI / MISO / SCLK | SPI interface | Full-duplex serial interface for configuration, real-time status readback, and fault annunciation; operates up to 10 MHz. |
| DRVEN / RESETB / IRQB | System control & status | DRVEN enables/disables all pre-drivers; RESETB initiates cold boot; IRQB signals faults or end-of-injection events asynchronously. |
Key Features
| Feature | Design Value |
|---|---|
| Five high-side + seven low-side pre-drivers | Enables full control of multi-injector systems (e.g., 5-cylinder DI engines) plus integrated DC-DC converter without external drivers. |
| Four independent microcores with 93 instructions | Allows concurrent execution of injector timing, diagnostics, VDS monitoring, and DC-DC regulation - eliminating software bottlenecks in safety-critical paths. |
| Integrated 1 MHz backup clock | Ensures deterministic timing during main clock failure; critical for fail-safe injector cutoff in engine control units. |
| Encryption + checksum-protected microcode | Prevents unauthorized firmware modification and runtime corruption - required for ISO 26262 ASIL-B compliance in production ECUs. |
| VBOOST feedback & DC-DC converter control | Supports self-contained boost generation for high-side gate drive; eliminates need for external DC-DC IC in compact ECU designs. |
Applications
| Diesel Direct Injection (DDI) | Gasoline Direct Injection (GDI) |
|---|---|
|
Use Scenario: High-precision fuel metering in common-rail diesel engines with variable injection pressure (up to 2500 bar) and multiple injections per cycle. IC Role / Device Role / Timing Role: MC33816AER2 controls five high-side drivers for solenoid-actuated injectors and monitors coil current via VSENSEP/VSENSEN inputs to detect stiction or leakage. Use Value: Achieves <±1% fuel quantity accuracy across temperature and battery voltage variations using closed-loop current feedback and programmable slew rates. |
Use Scenario: Multi-pulse gasoline injection in turbocharged GDI engines requiring fast valve response (<200 µs) and precise dwell time control. IC Role / Device Role / Timing Role: MC33816AER2 executes synchronized PWM on six low-side drivers (G_LS1–G_LS6) while measuring injector current to validate opening/closing timing. Use Value: Enables split injection strategies (e.g., pilot-main-after) with sub-microsecond timing resolution via microcore-based instruction sequencing. |
| Automatic Transmission Solenoid Control | Engine Start-Stop Valve Actuation |
|
Use Scenario: Proportional pressure control in 8-speed automatic transmissions using linear solenoids with PWM-driven current regulation. IC Role / Device Role / Timing Role: MC33816AER2 uses its four current sense channels to regulate solenoid current in real time, adjusting duty cycle based on VDS and temperature compensation. Use Value: Maintains consistent hydraulic pressure across −40 °C to +125 °C ambient by compensating for MOSFET RDS(on) drift and solenoid resistance variation. |
Use Scenario: Fast-acting intake/exhaust valve lift control in camless or electro-hydraulic start-stop systems requiring rapid actuator engagement. IC Role / Device Role / Timing Role: MC33816AER2 drives high-side pre-drivers (G_HS1–G_HS5) with 100 kHz PWM to achieve <5 ms valve response time, monitored via S_HSx source feedback. Use Value: Reduces engine restart latency by 30% compared to relay-based solutions through deterministic gate drive and integrated fault recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar solenoid controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33816MAE | Same silicon die and pinout; includes programmable End-of-Injection (EOI) measurement function not present in MC33816AER2. | Required for applications needing precise fuel injection duration capture (e.g., closed-loop combustion control). | Select MC33816MAE only if EOI timing measurement is mandatory; otherwise MC33816AER2 offers identical core functionality at lower cost. |
| TPIC2603DWR | 6-channel high-side driver only; no low-side drivers, no microcores, no current sensing, no SPI interface - purely analog gate drive. | Limited to simple on/off solenoid control without diagnostics or closed-loop current regulation. | Choose TPIC2603DWR for cost-sensitive non-safety applications where microcontroller handles all timing and fault logic externally. |
Compared with MC33816MAE, MC33816AER2 omits EOI measurement but retains full diagnostic, current-sensing, and multi-core control capabilities; versus TPIC2603DWR, it delivers integrated intelligence and fault resilience at the driver level - reducing MCU overhead and BOM count in ASIL-B powertrain modules.
Availability
MC33816AER2 is available at Aetrix Electronics and suitable for diesel direct injection, gasoline direct injection, and automatic transmission control applications requiring stable component supply, automotive-grade qualification, and long-term lifecycle support.
Supply support for MC33816AER2 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 specializing in secure connectivity solutions for automotive, industrial, and IoT markets, with deep expertise in functional-safety microcontrollers and power management ICs.
The MC33816AER2 belongs to NXP's SMARTMOS solenoid controller product line, engineered specifically for ASIL-B compliant engine management systems requiring integrated gate drive, real-time diagnostics, and robust transient handling in harsh automotive environments.
FAQ
What is the maximum operating voltage for the high-side pre-drivers in MC33816AER2?
The MC33816AER2 high-side pre-drivers support up to 72 V on the VBOOST pin under steady-state conditions, with transient tolerance up to 72 V for unpowered devices. This rating enables direct integration into 24 V truck systems and withstands load-dump transients when used with external VCCP regulation, as specified in Table 3 of Rev. 10.0 datasheet.
Does MC33816AER2 include built-in current sensing capability?
Yes, MC33816AER2 integrates four differential current-sense input pairs (VSENSEP1/VSENSEN1 through VSENSEP4/VSENSEN4) supporting ±15 V dynamic input ranges. These interfaces connect directly to shunt resistors for real-time solenoid and DC-DC converter current monitoring, with configurable gain and threshold settings managed via SPI registers.
How many independent microcores does MC33816AER2 contain, and what do they control?
The MC33816AER2 contains four independent digital microcores executing a 93-instruction set. They concurrently manage high-side/low-side gate drive timing, VDS fault detection, current-sense data processing, and DC-DC converter regulation - each pair assigned to separate Code RAM and Data RAM banks to ensure deterministic, lockstep-free operation.
Is MC33816AER2 pin-compatible with MC33816AE or MC33816MAE?
Yes, MC33816AER2 shares identical 64-pin LQFP packaging, pinout, and electrical characteristics with MC33816AE and MC33816MAE. All three variants are mechanically and electrically interchangeable; differences lie solely in factory-programmed microcode features - notably, MC33816MAE includes End-of-Injection measurement functionality absent in MC33816AER2.
What fault protection mechanisms are implemented in MC33816AER2?
MC33816AER2 provides comprehensive fault protection including overvoltage/undervoltage monitoring on VBATT, VBOOST, and VCCP; eight programmable VDS thresholds for short-circuit detection; thermal shutdown at 150 °C junction temperature; and SPI-annunciated faults for open-load, overcurrent, and pre-driver saturation - all processed in real time by the four microcores.
MC33816AER2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 64-LQFP Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Solenoid Controller
- Current - Supply:
- -
- 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)
MC33816AER2 FAQ
1.How can I place an order for MC33816AER2 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33816AER2 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 MC33816AER2 reliable?
The price and inventory of MC33816AER2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33816AER2 is usually 5 days.
3.What payment methods are accepted for MC33816AER2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33816AER2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33816AER2?
MC33816AER2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33816AER2 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 MC33816AER2?
For technical support, including MC33816AER2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33816AER2 requirements.
6.How does Aetrix verify that MC33816AER2 is sourced from the original manufacturer or authorized distributors?
All MC33816AER2 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 MC33816AER2 meets industry standards.
7.What is the process for return or replacement of MC33816AER2?
All MC33816AER2 units undergo pre-shipment inspection (PSI). If there is an issue with MC33816AER2, 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 MC33816AER2 part is unused and in its original packaging.
Return procedure for MC33816AER2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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