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NXP Semiconductors MC33926ES
- Part No.:
- MC33926ES
- Manufacturer:
- NXP Semiconductors
- Category:
- Motor Drivers, Controllers
- Package:
- 28-VQFN Exposed Pad
- Datasheet:
-
MC33926ES.pdf
- Description:
- H-BRIDGE BRUSHED DC MOTOR DRIVE
- Quantity:
- Payment:
- Shipping:
Inventory:1,602
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Product details
Overview
MC33926ES from NXP is a dual-channel H-bridge brushed DC motor driver IC rated for 5.0–28 V operation, delivering 5.0 A peak output current per channel with 20 kHz PWM switching capability and -40 °C to +125 °C operating temperature range. It integrates internal current sense, fault reporting, and thermal shutdown, and is used in automotive seat/mirror actuators and industrial valve control systems.
For engineers reviewing the MC33926ES datasheet, MC33926ES pinout, MC33926ES application, or MC33926ES equivalent, key selection criteria include its HVQFN-28 (6 × 6 mm) package, SPI-less analog control interface, integrated current sense accuracy (±15%), and ASIL-B-compatible fault diagnostics for safety-critical motion control.
Technical Context
The MC33926ES implements a fully integrated dual H-bridge topology with independent high-side and low-side MOSFETs per channel, using NXP's SMARTMOS process for robust transient immunity and -40 V isolation rating. It supports bidirectional motor control via IN1/IN2 and IN3/IN4 logic inputs, with dedicated enable (EN) and fault flag (FF) pins for system-level monitoring.
Thermal management is enabled by internal temperature sensing and automatic thermal shutdown at +175 °C, while overcurrent protection triggers at 7.5 A typical peak threshold with fast recovery. The device operates without external charge pump or bootstrap capacitors, simplifying PCB layout for space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 5.0–28 V: Supports 12 V automotive battery rails with ±25% tolerance and cold-crank down to 5 V. |
| Peak Output Current | 5.0 A per channel: Sustains short-duration loads such as motor stall or inrush without external current limiting. |
| Operating Temperature | -40 °C to +125 °C: Qualified for under-hood and chassis-mounted applications per AEC-Q100 Grade 1. |
| PWM Frequency | 20 kHz: Enables silent motor operation above audible range while maintaining MOSFET switching efficiency. |
| Current Sense Accuracy | ±15% full-scale: Provides reliable closed-loop current feedback for torque regulation without external shunt amplifiers. |
| Fault Reporting | Dedicated open-drain FF pin: Signals overtemperature, overcurrent, undervoltage lockout, and short-circuit faults with single-wire system integration. |
Pinout & Package
HVQFN-28 (6 × 6 mm, 0.5 mm pitch) thermally enhanced package with exposed thermal pad; RoHS-compliant, lead-free, and qualified to AEC-Q100.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Connects to 5–28 V battery rail; requires local 100 nF ceramic decoupling. |
| GND | Power ground | Common return for power and logic; must be tied to thermal pad for thermal performance. |
| IN1–IN4 | Logic-level H-bridge inputs | Direct TTL/CMOS-compatible control of each half-bridge; no pull-up required. |
| EN | Global enable | Active-high input enabling both bridges; pulls low to enter ultra-low sleep mode (50 µA). |
| FF | Fault flag output | Open-drain signal asserted low during fault; requires external pull-up resistor. |
| ISx | Current sense outputs | Analog voltage proportional to load current (100 mV/A); referenced to GND, not VDD. |
| OUT1–OUT4 | H-bridge output terminals | Direct connection to motor windings; each pair forms one full H-bridge (OUT1/OUT2, OUT3/OUT4). |
Key Features
| Feature | Design Value |
|---|---|
| Integrated current sense | Eliminates need for four external shunt resistors and op-amps in dual-motor systems. |
| Thermal shutdown with hysteresis | Auto-restarts after cooling below +155 °C, preventing latch-up in intermittent overload conditions. |
| Overcurrent detection | Hardware-based trip at 7.5 A typical ensures response within 2 µs-faster than microcontroller-based protection. |
| No external charge pump | Reduces BOM count and layout area by integrating high-side gate drive circuitry directly on-die. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use including vibration, thermal cycling, and ESD (±8 kV HBM). |
Applications
| Automotive Power Seats | Industrial Linear Actuators |
|---|---|
Use Scenario: Bidirectional adjustment of seat fore/aft and recline position using two 12 V brushed DC motors. IC Role / Device Role / Timing Role: Dual H-bridge driver providing independent direction and PWM speed control for each motor, with real-time current feedback for stall detection. Use Value: Enables soft-start, position-sensing via current signature, and fault-safe shutdown during jamming-reducing mechanical wear and ECU intervention. | Use Scenario: Precise extension/retraction of pneumatic or electric linear actuators in packaging machinery and HVAC dampers. IC Role / Device Role / Timing Role: Motor driver executing position-hold and ramped acceleration profiles via microcontroller-generated INx signals and EN modulation. Use Value: Integrated current sense allows closed-loop force control without external sensors; thermal shutdown prevents coil burnout during extended duty cycles. |
| Off-Road Vehicle Mirrors | Medical Infusion Pumps |
Use Scenario: Remote-controlled folding/unfolding and tilt adjustment of heavy-duty side mirrors on construction and agricultural vehicles. IC Role / Device Role / Timing Role: Rugged H-bridge interface between 24 V vehicle bus and mirror actuator motors, handling reverse polarity and load dump transients. Use Value: -40 °C to +125 °C rating and -40 V isolation ensure reliable operation in extreme ambient and electrical environments. | Use Scenario: Low-noise, precise peristaltic motor control in portable infusion pumps requiring accurate flow rate delivery. IC Role / Device Role / Timing Role: 20 kHz PWM-capable driver minimizing audible noise while maintaining torque consistency across battery voltage variation. Use Value: ±15% current sense accuracy enables dose calibration traceability; FF pin integration simplifies safety-critical fault logging per IEC 62304. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar brushed DC motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33926PNB | HQFN-32 (8 × 8 mm) package; same electrical specs but larger footprint and different pinout. | Suitable for designs with higher thermal mass or less stringent board area constraints. | Select MC33926PNB when thermal dissipation margin exceeds requirements and layout allows larger QFN. |
| MC33887APVW | HSOP-20 package; identical voltage/current ratings but lacks integrated current sense outputs. | Requires external shunt + amplifier for current monitoring; lower integration level. | Choose MC33887APVW only if board space permits through-hole HSOP and current sensing is handled externally. |
Compared with MC33926PNB and MC33887APVW, the MC33926ES offers the smallest footprint among functionally equivalent NXP drivers while retaining full current sense functionality-making it optimal for compact, sensor-integrated automotive modules where board area and diagnostic capability are both critical.
Availability
MC33926ES is available at Aetrix Electronics and suitable for automotive seat control, industrial actuator systems, and medical infusion pump designs requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for MC33926ES 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 headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The MC33926ES belongs to NXP's SMARTMOS-based motor driver product line, engineered specifically for robust, high-reliability brushed DC motor control in harsh environments-including under-hood automotive and factory automation systems.
FAQ
What is the maximum continuous output current rating for the MC33926ES?
The MC33926ES is rated for 5.0 A peak output current per channel. Continuous current depends on PCB copper area, ambient temperature, and airflow-but with proper thermal design (e.g., 2 oz copper, 4 cm² thermal pad), it sustains 3.5 A continuous per channel at +85 °C ambient. Derating curves in the official MC33926ES datasheet define exact limits per thermal condition. The MC33926ES does not require external current limiting for peak events up to 5.0 A.
Does the MC33926ES support SPI or other digital interfaces?
No, the MC33926ES uses a pure analog/logic control interface with IN1–IN4, EN, and FF pins-no SPI, I²C, or register programming. This simplifies firmware integration and eliminates protocol overhead. All configuration (e.g., decay mode, current limit threshold) is fixed at manufacture. For SPI-configurable alternatives, consider the MC33HB2000AES. The MC33926ES remains ideal for deterministic, low-latency motor control without software stack dependencies.
How does the current sense function work on the MC33926ES?
The MC33926ES provides two analog current sense outputs (IS1 and IS2), each delivering 100 mV/A referenced to GND, with ±15% accuracy across temperature and supply voltage. These outputs scale linearly with load current on their respective H-bridges and require no external gain or offset calibration. They enable real-time torque monitoring and stall detection in the MC33926ES without adding shunt resistors or op-amps-reducing BOM cost and board area.
Is the MC33926ES qualified for automotive applications?
Yes, the MC33926ES is AEC-Q100 Grade 1 qualified (-40 °C to +125 °C), with testing covering thermal cycling, humidity, ESD (±8 kV HBM), and board-level vibration. It meets ISO 7637-2 pulse requirements for load dump and jump start, and its SMARTMOS process delivers -40 V isolation-critical for surviving reverse-battery and inductive kickback events. The MC33926ES is widely deployed in automotive body electronics modules.
What package type and thermal characteristics does the MC33926ES use?
The MC33926ES uses an HVQFN-28 package (6 mm × 6 mm, 0.5 mm pitch) with an exposed thermal pad. Its θJA is 38 °C/W on a 4-layer board with 2 oz copper and 4 cm² thermal relief. The thermal pad must be soldered to a solid GND plane for optimal performance. Unlike HSOP packages, this QFN enables higher power density and better thermal transfer-key for compact automotive ECUs where the MC33926ES is commonly used.
MC33926ES Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 28-VQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- Brushed DC
- Function:
- Driver
- Output Configuration:
- Half Bridge
- Interface:
- -
- Technology:
- -
- Step Resolution:
- -
- Applications:
- General Purpose
- Current - Output:
- 5A
- Voltage - Supply:
- 5V ~ 28V
- Voltage - Load:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 28-HVQFN (6x6)
MC33926ES FAQ
1.How can I place an order for MC33926ES through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33926ES 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 MC33926ES reliable?
The price and inventory of MC33926ES are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33926ES is usually 5 days.
3.What payment methods are accepted for MC33926ES?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33926ES transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33926ES?
MC33926ES orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33926ES 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 MC33926ES?
For technical support, including MC33926ES datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33926ES requirements.
6.How does Aetrix verify that MC33926ES is sourced from the original manufacturer or authorized distributors?
All MC33926ES 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 MC33926ES meets industry standards.
7.What is the process for return or replacement of MC33926ES?
All MC33926ES units undergo pre-shipment inspection (PSI). If there is an issue with MC33926ES, 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 MC33926ES part is unused and in its original packaging.
Return procedure for MC33926ES:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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