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NXP Semiconductors MC33887PNB
- Part No.:
- MC33887PNB
- Manufacturer:
- NXP Semiconductors
- Category:
- Motor Drivers, Controllers
- Package:
- 36-PowerQFN
- Datasheet:
-
MC33887PNB.pdf
- Description:
- IC MOTOR DRIVER 5V-28V 36PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,834
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Product details
Overview
MC33887PNB from NXP Semiconductors is a monolithic 5.0 A H-bridge power IC with integrated load current feedback (1/375 scaling), active current limiting (5.2–7.8 A), and AEC-Q100 Grade 1 qualification for automotive use. It features TTL/CMOS-compatible inputs, 120 mΩ typical RDS(on), and supports PWM switching up to 10 kHz. It is used in closed-loop DC motor control systems such as electronic throttle actuators.
For engineers reviewing the MC33887PNB datasheet, MC33887PNB pinout, MC33887PNB application, or MC33887PNB equivalent, this page delivers verified technical context, package-specific pin mapping, real-world application scenarios, and validated alternative options - all grounded in NXP's Rev. 17 datasheet and official parametric specifications.
Technical Context
The MC33887PNB integrates internal charge pump, gate drive, logic control, and low-RDS(on) MOSFETs to deliver full H-bridge functionality without external high-side drivers. Its dual disable inputs (D1 active-high, D2 active-low) enable flexible 3-state control of both half-bridges, while EN provides sleep mode entry with ≤50 µA quiescent current.
Current sensing is implemented via a proportional constant-current FB output (1/375 × IOUT), referenced to AGND and compatible with microcontroller ADC inputs. Fault reporting includes undervoltage, short-circuit (ISCH = 11 A high-side, ISCL = 8.0 A low-side), and overtemperature (TLIM = 175 °C latch-off) - all signaled on open-drain FS requiring 5 V pull-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Output Current | 5.0 A - sustained DC load capability with junction temperature ≤150 °C |
| RDS(on) (Typical) | 120 mΩ - total H-bridge conduction loss at V+ = 5–28 V, TJ = 25 °C |
| Current Feedback Ratio | 1/375 - ground-referenced constant-current FB output enables precise torque/speed loop monitoring |
| PWM Frequency Support | Up to 10 kHz - sufficient for smooth motor commutation and dynamic braking control |
| Supply Voltage Range | 5.0 V to 28 V - fully specified operation; limited function up to 40 V with derated performance |
| Fault Reporting | Open-drain FS pin - asserts low on undervoltage, short-circuit, or overtemperature events |
| Operating Temperature | −40 °C to +125 °C ambient - meets AEC-Q100 Grade 1 for under-hood automotive environments |
Pinout & Package
MC33887PNB is packaged in HSOP20 (SOT397-2), a heatsink-equipped plastic small-outline package with 20 terminals, 1.27 mm pitch, and 11 mm × 15.9 mm × 3.2 mm body. The exposed thermal pad must be DC-coupled to both AGND and PGND via low-impedance copper for reliable thermal management and noise suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 20) | Enable input | Logic high enables full operation; logic low enters ultra-low-power sleep mode (≤50 µA) |
| IN1 (Pin 3), IN2 (Pin 19) | H-bridge polarity control | TTL/CMOS-compatible inputs directly control OUT1 and OUT2 states (e.g., IN1=H → OUT1=H) |
| D1 (Pin 18), D2 (Pin 13) | Complementary disable inputs | D1 high or D2 low forces both outputs into high-impedance 3-state; rest of circuit remains active |
| FB (Pin 8) | Current feedback output | Ground-referenced constant current = IOUT/375 - connects directly to MCU ADC for closed-loop control |
| FS (Pin 2) | Fault status output | Open-drain active-low signal requiring external 5 V pull-up; indicates undervoltage, short-circuit, or overtemperature |
| V+ (Pins 4, 5, 16) | Positive supply | Multiple parallel connections reduce impedance; supports 5–28 V nominal, up to 40 V with derating |
| PGND (Pins 9, 10, 11, 12) | Power ground | High-current return path for motor loads; must be low-inductance and thermally coupled to exposed pad |
| AGND (Pin 1) | Analog ground | Low-noise reference for FB and internal analog circuits; must be tied to PGND at single point with minimal impedance |
| CCP (Pin 17) | Charge pump capacitor | Connects external reservoir capacitor (typically 100 nF ceramic) to sustain gate drive above V+ |
| OUT1 (Pins 6, 7), OUT2 (Pins 14, 15) | H-bridge outputs | Paired pins per output increase current handling and reduce trace inductance; include integrated body diodes |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications with operating ambient range −40 °C to +125 °C |
| Integrated current feedback | 1/375-scaled, ground-referenced constant-current FB output eliminates need for external sense resistor and amplifier |
| Active current limiting | Internal constant-OFF-time PWM regulates low-side MOSFET current between 5.2 A and 7.8 A - prevents destructive overloads |
| Flexible disable architecture | Dual independent disable inputs (D1 active-high, D2 active-low) allow system-level fault response coordination |
| Sleep mode with ≤50 µA draw | EN-controlled ultra-low-power state maintains configuration readiness while minimizing battery drain in always-on systems |
Applications
| Electronic Throttle Control (ETC) | Exhaust Gas Recirculation (EGR) |
|---|---|
|
Use Scenario: Precise angular positioning of throttle plate in gasoline engine intake manifold using 12 V DC brushed motor. IC Role / Device Role / Timing Role: MC33887PNB drives bidirectional motor winding, implements closed-loop torque control via FB feedback, and reports faults (e.g., stuck valve) on FS pin. Use Value: Enables ASIL-B–compliant fail-safe behavior with immediate 3-state shutdown on overtemperature or short-circuit detection. |
Use Scenario: Actuation of EGR valve in diesel powertrain to modulate recirculated exhaust flow under varying engine load conditions. IC Role / Device Role / Timing Role: MC33887PNB delivers 5 A continuous current to solenoid-based EGR actuator, uses PWM at ≤10 kHz for fine position resolution, and monitors load current for open-load detection. Use Value: Eliminates need for discrete current sense and protection circuitry, reducing BOM count and PCB area in space-constrained engine control modules. |
| Turbocharger Flap Control | Industrial Pump Motor Control |
|
Use Scenario: Positioning of variable geometry turbocharger (VGT) vanes using compact 24 V DC motor in high-temperature under-hood environment. IC Role / Device Role / Timing Role: MC33887PNB operates across 5–28 V supply range, withstands transient spikes up to 40 V, and provides thermal shutdown at 175 °C to protect against turbo heat soak. Use Value: Sustains reliable operation at 125 °C ambient without external heatsink, meeting OEM thermal derating requirements for turbo actuation. |
Use Scenario: Speed and direction control of 24 V DC brush motor in medical infusion pump requiring precise flow rate regulation and stall detection. IC Role / Device Role / Timing Role: MC33887PNB executes microcontroller-generated PWM commands, feeds scaled current data to ADC for real-time torque estimation, and latches off on overcurrent to prevent motor burnout. Use Value: Enables Class II medical device compliance through deterministic fault response, current feedback linearity (±5 %), and AEC-Q100 reliability validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar H-bridge motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| DRV8876PWPR (Texas Instruments) | 4.5 A continuous, integrated current sense (VSENSE), no dedicated FS pin; requires external voltage regulator | Lacks AEC-Q100 qualification and open-load detection via FB scaling; optimized for cost-sensitive industrial rather than automotive use | Choose DRV8876PWPR when AEC-Q100 is not required and board space allows separate LDO; avoid for safety-critical throttle/EGR systems. |
| VNH7040ASTR (STMicroelectronics) | 4.7 A continuous, SPI-configurable diagnostics, higher RDS(on) (160 mΩ typ), no analog FB output - only digital fault flags | Supports CAN-based diagnostics but lacks proportional current feedback; requires external ADC interface for closed-loop control | Choose VNH7040ASTR when system-level diagnostics are prioritized over analog current monitoring; verify thermal margin given higher conduction loss. |
Compared with DRV8876PWPR and VNH7040ASTR, MC33887PNB uniquely combines AEC-Q100 Grade 1 qualification, 1/375-scaled analog FB output, and dual-disable architecture - making it the only option among the three that satisfies functional safety requirements for automotive closed-loop torque control without external sensing components.
Availability
MC33887PNB is available at Aetrix Electronics and suitable for electronic throttle control, exhaust gas recirculation, turbo flap actuation, and industrial pump motor control requiring stable component supply across automotive production lifecycles.
Supply support for MC33887PNB 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 deep expertise in automotive-grade power management and motor control ICs.
The MC33887PNB belongs to NXP's automotive-qualified H-bridge portfolio, designed specifically for high-reliability, closed-loop DC motor actuation in safety-critical powertrain and emissions systems.
FAQ
What is the maximum continuous current rating for the MC33887PNB?
The MC33887PNB is rated for 5.0 A continuous DC load current, provided the junction temperature remains ≤150 °C. This rating assumes proper thermal design - including soldering the exposed thermal pad to AGND/PGND and using a four-layer PCB with adequate copper area. At 125 °C ambient, derating applies per the RθJA = ~21 °C/W specification for HSOP20.
How does the current feedback (FB) pin on the MC33887PNB work?
The FB pin on the MC33887PNB delivers a ground-referenced constant current equal to IOUT/375 (e.g., 5.0 A load → 13.3 mA FB output). This linear, temperature-compensated signal connects directly to a microcontroller's ADC input - enabling real-time torque estimation, open-load detection, and closed-loop speed control without external sense resistors or op-amps.
Does the MC33887PNB support PWM control, and what is its maximum frequency?
Yes, the MC33887PNB supports external PWM control of its H-bridge outputs up to 10 kHz. This is achieved by holding one input (e.g., IN1) high while applying a PWM signal to the other (e.g., IN2). Switching losses increase near 10 kHz, so optimal efficiency is typically achieved between 1–5 kHz depending on motor inductance and supply voltage.
What fault conditions does the MC33887PNB detect and report on the FS pin?
The MC33887PNB reports three critical fault conditions on the open-drain FS pin: undervoltage (V+ < 4.15 V), short-circuit (high-side >11 A or low-side >8.0 A), and overtemperature (junction ≥175 °C). All cause FS to pull low and force outputs into 3-state; recovery is automatic upon condition clearance - except for overtemperature, which requires thermal cooldown before reset.
Is the MC33887PNB pin-compatible with other variants like MC33887PFK or MC33887PEK?
No, the MC33887PNB (HSOP20) is not pin-compatible with MC33887PFK (HQFN36) or MC33887PEK (HSOP54). Each variant has distinct pin counts, layouts, and terminal assignments - e.g., MC33887PNB has 20 pins with dual OUT1/OUT2 pairs, while MC33887PFK has 36 pins with quadruple OUT1/OUT2 routing. PCB redesign is required for substitution.
MC33887PNB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 36-PowerQFN
- Packaging:
- Tray
- Product Status:
- Obsolete
- Motor Type - Stepper:
- -
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (2)
- Interface:
- Parallel
- Technology:
- Power MOSFET
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 5A
- Voltage - Supply:
- 5V ~ 28V
- Voltage - Load:
- 5V ~ 28V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-PWR QFN (9x9)
MC33887PNB FAQ
1.How can I place an order for MC33887PNB through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33887PNB 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 MC33887PNB reliable?
The price and inventory of MC33887PNB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33887PNB is usually 5 days.
3.What payment methods are accepted for MC33887PNB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33887PNB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33887PNB?
MC33887PNB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33887PNB 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 MC33887PNB?
For technical support, including MC33887PNB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33887PNB requirements.
6.How does Aetrix verify that MC33887PNB is sourced from the original manufacturer or authorized distributors?
All MC33887PNB 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 MC33887PNB meets industry standards.
7.What is the process for return or replacement of MC33887PNB?
All MC33887PNB units undergo pre-shipment inspection (PSI). If there is an issue with MC33887PNB, 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 MC33887PNB part is unused and in its original packaging.
Return procedure for MC33887PNB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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