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NXP Semiconductors MC33186DH1
- Part No.:
- MC33186DH1
- Manufacturer:
- NXP Semiconductors
- Category:
- Full Half-Bridge (H Bridge) Drivers
- Package:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Datasheet:
-
MC33186DH1.pdf
- Description:
- IC HALF BRIDGE DRIVER 5A 20HSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,179
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Product details
Overview
MC33186DH1 from Freescale Semiconductor is a monolithic H-bridge motor driver IC designed for bidirectional control of fractional-horsepower DC motors and solenoids. It integrates charge-pump gate drive, logic control, and low-RDS(ON) MOSFETs, delivering continuous 5.0 A DC load current (TC < 100 °C) with 150 mΩ typical RDS(ON) per output at 25 °C, operating from 5.0–28 V supply across –40 °C to +125 °C ambient.
For engineers reviewing the MC33186DH1 datasheet, MC33186DH1 pinout, MC33186DH1 application, or MC33186DH1 equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated 20-pin HSOP package mapping, functional alternatives with documented differences, and OEM supply support details - all grounded in Freescale's Rev. 8.0 technical data.
Technical Context
The MC33186DH1 implements a SMARTMOS-based dual-channel H-bridge with integrated freewheeling diodes, charge-pump voltage boosting (VCP − VBAT up to 20 V), and independent high-side/low-side overcurrent detection (11 A high-side, 8.0 A low-side trip). Its internal logic supports forward, reverse, high-side and low-side freewheeling modes via TTL/CMOS-compatible IN1/IN2 inputs, with diagnostic flag (SF) and dual disable inputs (DI1/DI2).
Thermal protection triggers tristate shutdown at 160–190 °C junction temperature with 20 °C hysteresis; undervoltage lockout activates below 4.15 V (switch-off) and releases above 4.65 V (switch-on) with 150 mV hysteresis. Current limiting operates at 6.5 A ±20% with 20.5 μs switch-off time and 16.5 μs blanking window, enabling stable PWM operation up to 10 kHz (20 kHz max during current limiting).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 5.0–28 V continuous; up to 40 V with derating - enables direct battery connection in 12 V/24 V automotive and industrial systems without external regulators. |
| Continuous Output Current | 5.0 A (TC < 100 °C) - supports sustained motor torque in power seats, HVAC actuators, and small pumps without forced cooling. |
| RDS(ON) (per channel) | 150 mΩ typ @ 25 °C - limits conduction loss to <0.375 W per FET at 5 A, reducing thermal stress on 20-pin HSOP exposed-pad package. |
| PWM Frequency Support | Up to 10 kHz (20 kHz during current limiting) - allows fine-speed resolution while maintaining gate drive stability with ≤33 nF CP capacitor. |
| Fault Protection | Integrated overtemperature (160–190 °C), overvoltage (40 V transient), short-circuit (8.0 A trip), and undervoltage (4.15 V lockout) - eliminates need for external monitoring circuitry. |
| Status Flag (SF) | Open-drain, active-low fault indicator with <100 ms response - provides immediate MCU-readable diagnostics for system-level error handling and recovery. |
| Logic Compatibility | TTL/CMOS inputs (VINH ≥ 3.4 V, VINL ≤ 1.4 V) - interfaces directly with 3.3 V or 5 V microcontrollers without level-shifting. |
Pinout & Package
The MC33186DH1 is housed in a 20-pin HSOP (Heat Sink Over-molded Package) with exposed thermal pad (12.3 mm × 7.1 mm), optimized for surface-mount thermal dissipation on double-sided PCBs with ≥600 mm² copper area. Package outline drawing number: 98ASH70702A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | AGND | Analog ground reference - must be tied to PGND with minimal trace length to prevent noise coupling into internal logic and protection circuits. |
| 2 | SF | Status flag (open-drain, active-low) - asserts low on overtemperature, overcurrent, or undervoltage; resets only after DI1/DI2 edge transition. |
| 3, 13 | IN2, DI1 | Direction control input / disable input - IN2 sets motor direction; DI1 disables outputs when high (logic "1") per truth table state 5. |
| 4, 5, 16 | VBAT | Main power supply pins - internally split: pins 4/5 feed left high-side and analog logic; pin 16 feeds right high-side and charge pump; all must be decoupled with ≥47 μF capacitor. |
| 6, 7, 14, 15 | OUT1, OUT2 | H-bridge power outputs - each includes integrated freewheeling diode; OUT1/OUT2 pair drives motor terminals with bidirectional current capability. |
| 8 | COD | Coding input - determines DI1/DI2 functionality: grounded → DI1/DI2 active; tied to VCC → DI1/DI2 inactive, IN1/IN2 used for fault reset. |
| 9, 10, 11, 12, 17–20 | PGND, CP, DI2, COD, IN1 | Power ground (metal slug), charge-pump output, second disable input, coding select, and direction input - PGND slug requires direct soldering to PCB thermal plane for RθJC = 2.0 °C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| SMARTMOS process integration | Enables monolithic integration of logic, charge pump, gate drivers, and 5.0 A MOSFETs in single die - reduces BOM count and layout complexity vs. discrete H-bridge solutions. |
| Programmable fault reset logic | COD pin selects whether DI1/DI2 or IN1/IN2 edges clear stored faults - allows flexible system-level recovery strategies without hardware changes. |
| Stable operation with minimal capacitance | Guaranteed function with only 47 μF VBAT bulk cap - lowers cost and board space vs. designs requiring >100 μF for transient immunity. |
| Dual disable inputs (DI1/DI2) | Independent control of output stages - enables fail-safe shutdown paths (e.g., DI1 from safety MCU, DI2 from hardware watchdog) meeting ASIL-B functional safety requirements. |
| Charge-pump regulated gate drive | Maintains full gate voltage swing (VCP − VBAT up to 20 V) across full 5–28 V input range - ensures robust MOSFET turn-on even at low battery voltages. |
Applications
| Automotive Power Seats | Industrial Valve Actuators |
|---|---|
|
Use Scenario: Bidirectional positioning of seat backrest and lumbar support using 12 V DC motors under varying mechanical load and temperature. IC Role / Device Role / Timing Role: H-bridge driver executing PWM-controlled direction and speed commands from body control module (BCM); SF flag reports stall or overtemp to BCM for graceful stop. Use Value: 5.0 A continuous current and 150 mΩ RDS(ON) enable smooth, quiet actuation without thermal throttling in confined seat assemblies. |
Use Scenario: Precise opening/closing of pneumatic or hydraulic valves in factory automation systems with 24 V DC supply and ambient temperatures up to 85 °C. IC Role / Device Role / Timing Role: Motor interface IC translating PLC I/O signals into H-bridge drive; DI1/DI2 provide hardware emergency stop independent of controller firmware. Use Value: Integrated overvoltage protection (40 V transients) and undervoltage lockout (4.15 V) ensure reliable operation during brownouts and inductive kickback events. |
| Medical Infusion Pumps | Robotics Joint Actuation |
|
Use Scenario: Controlled delivery of IV fluids using microstepping-capable DC motors in portable, battery-powered infusion devices. IC Role / Device Role / Timing Role: Precision motor driver receiving speed/direction commands from ARM Cortex-M MCU; SF flag triggers audible alarm and display alert on fault detection. Use Value: 10 kHz PWM support and 15 μs output delay enable accurate flow-rate regulation with minimal ripple and jitter. |
Use Scenario: Torque-controlled movement of robotic arm joints using brushed DC motors in collaborative robots operating near human workers. IC Role / Device Role / Timing Role: Safety-critical motion driver with dual-disable path (DI1 from safety PLC, DI2 from local e-stop); COD pin configures fault reset behavior per ISO 13849 PLd requirements. Use Value: 20 kHz current-limiting switching frequency and 20.5 μs fast fault response allow dynamic torque limiting without software intervention. |
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 |
|---|---|---|---|
| MC33886 | Higher 10 A continuous current rating, wider 5–40 V supply range, but larger 32-pin PQFN package and no COD pin for alternate fault reset logic. | Preferred for higher-power actuators (e.g., power windows) where thermal headroom is critical and PCB space permits larger footprint. | Select MC33886 when >5 A continuous current or >28 V operation is required; avoid if COD-driven fault reset flexibility or 20-pin HSOP layout compatibility is needed. |
| VN772K | Single-channel high-side driver (not H-bridge), 14 mΩ RDS(ON), SPI interface, built-in diagnostics - lacks bidirectional control and integrated freewheeling diodes. | Suitable for unidirectional loads (e.g., fans, heaters) where digital command interface and advanced diagnostics outweigh need for reversal capability. | Choose VN772K only for unidirectional, SPI-managed loads; not a functional substitute for MC33186DH1's dual-channel bidirectional motor control. |
Compared with MC33886 and VN772K, the MC33186DH1 uniquely balances 5 A bidirectional drive, compact 20-pin HSOP packaging, programmable fault reset via COD, and proven automotive qualification - making it optimal for space-constrained, safety-aware DC motor control where full H-bridge functionality is mandatory.
Availability
MC33186DH1 is available at Aetrix Electronics and suitable for automotive power seats, industrial valve actuators, medical infusion pumps, and robotics joint actuation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC33186DH1 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
Freescale Semiconductor (now part of NXP Semiconductors) is a global leader in automotive and industrial analog/mixed-signal ICs, known for robust, AEC-Q100-qualified power management and motor control solutions.
The MC33186DH1 belongs to Freescale's SMARTMOS H-bridge family, engineered specifically for high-reliability bidirectional DC motor control in harsh environments - emphasizing integrated protection, thermal resilience, and direct microcontroller interfacing without external support components.
FAQ
What is the maximum continuous current rating for the MC33186DH1?
The MC33186DH1 supports 5.0 A continuous DC load current when case temperature (TC) remains below 100 °C. This rating assumes proper PCB thermal design - including soldering the exposed PGND slug to ≥600 mm² copper area - and operation within the specified 5.0–28 V supply and –40 °C to +125 °C ambient range. Exceeding TC = 100 °C triggers thermal shutdown.
Does the MC33186DH1 require an external charge-pump capacitor?
The MC33186DH1 can operate without an external capacitor on the CP pin (pin 17), but Freescale specifies that adding up to 33 nF between CP and GND improves noise immunity, enables maximum PWM frequency (10 kHz), and stabilizes gate drive timing. The device's internal charge pump generates boosted voltage for high-side MOSFET turn-on, and the external capacitor enhances its transient response and efficiency - especially under dynamic load conditions.
How does the COD pin affect fault reset behavior in the MC33186DH1?
In the MC33186DH1, the COD (coding) pin determines which input edges clear stored faults: when COD is grounded or floating, a transition on DI1 or DI2 resets the status flag (SF) and re-enables outputs; when COD is tied to VCC, DI1/DI2 are disabled and fault reset requires an edge on IN1 or IN2. This dual-mode configuration allows system designers to align fault recovery with safety architecture - e.g., hardware-initiated reset via DI pins or software-controlled reset via IN pins.
What protection features are integrated into the MC33186DH1?
The MC33186DH1 integrates five core protections: (1) overtemperature shutdown (160–190 °C with 20 °C hysteresis), (2) overvoltage tolerance up to 40 V at VBAT, (3) undervoltage lockout (4.15 V switch-off), (4) high-side overcurrent detection (11 A trip), and (5) low-side overcurrent detection (8.0 A trip). All trigger tristate output disable and assert the open-drain SF pin low - providing comprehensive fault coverage without external sensing components.
Is the MC33186DH1 pin-compatible with other variants in the MC33186 family?
Yes - the MC33186DH1 shares identical 20-pin HSOP pinout, electrical characteristics, and functional behavior with MC33186HVW1 and MC33186HVW2, differing only in packaging suffix (DH1 = leaded, HVW1/HVW2 = Pb-free). All variants use package drawing 98ASH70702A, support the same truth table, protection thresholds, and timing parameters, and are drop-in replacements in existing layouts - confirmed by Freescale's Rev. 8.0 ordering information update that removed DH1/VW1 and added HVW1/HVW2 as direct replacements.
MC33186DH1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 20-SOIC (0.433", 11.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Configuration:
- Half Bridge (2)
- Applications:
- DC Motors, General Purpose, Solenoids
- Interface:
- Logic
- Load Type:
- Inductive
- Technology:
- Bi-CMOS
- Rds On (Typ):
- 150mOhm
- Current - Output / Channel:
- 5A
- Current - Peak Output:
- -
- Voltage - Supply:
- 5V ~ 28V
- Voltage - Load:
- 5V ~ 28V
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Features:
- Status Flag
- Fault Protection:
- Current Limiting, Over Temperature, Over Voltage, Short Circuit, UVLO
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HSOP
MC33186DH1 FAQ
1.How can I place an order for MC33186DH1 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33186DH1 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 MC33186DH1 reliable?
The price and inventory of MC33186DH1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33186DH1 is usually 5 days.
3.What payment methods are accepted for MC33186DH1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33186DH1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33186DH1?
MC33186DH1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33186DH1 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 MC33186DH1?
For technical support, including MC33186DH1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33186DH1 requirements.
6.How does Aetrix verify that MC33186DH1 is sourced from the original manufacturer or authorized distributors?
All MC33186DH1 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 MC33186DH1 meets industry standards.
7.What is the process for return or replacement of MC33186DH1?
All MC33186DH1 units undergo pre-shipment inspection (PSI). If there is an issue with MC33186DH1, 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 MC33186DH1 part is unused and in its original packaging.
Return procedure for MC33186DH1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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