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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Motor Drivers, Controllers

Monolithic Power Systems Inc. MP6612DGF-Z

Name: MP6612DGF-Z
Brand: Monolithic Power Systems Inc.
SKU: MP6612DGF-Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MP6612DGF-Z

Manufacturer:: Monolithic Power Systems Inc.

Category:: Motor Drivers, Controllers

Package:: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad

Datasheet:: MP6612DGF-Z.pdf

Description:: 40V, 5A, H-BRIDGE DC MOTOR DRIVE

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Product details

Overview

MP6612DGF-Z from Monolithic Power Systems is a 40V, 5A H-bridge DC motor driver IC with integrated current sense, cycle-by-cycle current regulation, and fault protection. It drives brushed DC motors or stepper windings using DIR/ENBL logic inputs, features 70mΩ high-side and 45mΩ low-side MOSFETs, and operates from 4V to 40V supply. Used in automotive door locks, industrial actuators, and robotic motion control where compact reversible drive and accurate current monitoring are required.

For engineers reviewing the MP6612DGF-Z datasheet, MP6612DGF-Z pinout, MP6612DGF-Z application, or MP6612DGF-Z equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed alternative options with functional differences, and supply support details specific to OEM and embedded motion-control programs.

Technical Context

The MP6612D uses DIR and ENBL inputs to configure forward/reverse/brake states, with internal charge pump enabling 100% duty-cycle operation without external gate-drive supplies. Its current-sense architecture sources VISEN voltage proportional to load current via ISET-resistor scaling (100μA/A), eliminating need for external shunt resistors.

Cycle-by-cycle current limiting triggers at 1.5V on ISET (e.g., 3A with 5kΩ resistor), initiating slow-decay mode with dual low-side FET conduction. Protection includes OCP with configurable threshold (10.5A–25.5A), UVLO (3.8V turn-on), OVP (46.5V), and OTP (165°C) with automatic recovery.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	4V to 40V - supports 12V/24V industrial and automotive battery systems without external regulators.
Continuous Output Current	5A - enables direct driving of medium-power DC motors up to ~100W at 24V with thermal pad cooling.
R_DS(ON) High-Side	70mΩ typ - limits conduction loss to ≤2.5W at 5A, reducing heatsink requirements.
R_DS(ON) Low-Side	45mΩ typ - ensures efficient brake-mode dissipation and accurate current sensing during LS-FET conduction.
Current Sense Accuracy	±5% - enables reliable closed-loop current control and stall detection without calibration.
OCP Threshold Range	10.5A–25.5A - selectable via OC_ADJ pin (float/GND) to match motor inrush and stall profiles.
Quiescent Current (Brake Mode)	35–70μA - extends battery life in always-on systems like smart locks during idle hold.
Thermal Shutdown	165°C with 20°C hysteresis - prevents permanent damage during overload while allowing auto-recovery after cooldown.

Pinout & Package

TSSOP-20EP package with exposed thermal pad soldered to PGND for enhanced power dissipation (θ_JA = 40°C/W on 4-layer PCB). Pin count: 20 leads; body size: 6.5mm × 4.4mm × 1.05mm.

Pin/Terminal	Circuit Role	Design Meaning
1 VCP	Charge pump output	Drives internal gate-boost circuit; requires 1μF X7R ceramic capacitor to VIN for stable high-side FET turn-on.
3 ENBL	H-bridge enable input	Pulled down internally; logic-high enables outputs; used with DIR to set direction and brake state.
4 DIR	H-bridge phase input	Pulled down internally; defines motor polarity (forward/reverse) when ENBL is high.
6 VCC	5V LDO output	Powers internal logic and gate drivers; supplies external circuits up to 10mA with ±250mV regulation.
7 VISEN	Current-sense analog output	Voltage proportional to load current (e.g., 0.5V/A with 5kΩ ISET); max 2mA sink capability.
10 ISET	Current limit configuration	Resistor-to-AGND sets trip point (1.5V threshold); open connection disables current regulation.
11 nSLEEP	Sleep mode control	Pulled down internally; logic-low disables all circuitry including charge pump, reducing IQ to 1μA.
13 OC_ADJ	OCP threshold select	Floating = 10.5A OCP; GND = 14.5A OCP - configures short-circuit response without external components.
14,15 OUT2	Motor winding terminal 2	Connects directly to one end of DC motor or stepper coil; shares current path with PGND pins.
17,18 OUT1	Motor winding terminal 1	Paired with OUT2 to form full H-bridge; paralleled pins reduce trace resistance and improve thermal sharing.
19 nFAULT	Fault indication output	Open-drain signal pulled low during OCP/OVP/OTP/UVLO; requires external pull-up for microcontroller interrupt.
Exposed Pad	Thermal & power ground	Must be soldered to PGND plane with ≥6 thermal vias; primary path for heat removal and low-impedance return.

Key Features

Feature	Design Value
Internal charge pump	Enables 100% duty-cycle operation with N-channel MOSFETs only - eliminates need for external high-side drivers or P-channel devices.
Cycle-by-cycle current regulation	Fixed off-time PWM control with 11µs blanking time - suppresses false trips from switching spikes while maintaining precise 3A–25A trip range.
Low-IQ brake mode	35–70μA quiescent current with both LS-FETs on - holds motor position without overheating or draining battery in safety-critical latches.
Configurable over-current threshold	Two-point OCP selection (10.5A/14.5A) via single OC_ADJ pin - simplifies BOM by removing external resistor networks for fault tuning.
Fault reporting with auto-recovery	nFAULT open-drain output + 4ms retry timer - allows firmware to log faults and resume operation without manual reset in field-deployed systems.

Applications

Automotive Door Lock Actuators

Industrial Linear Actuators

Use Scenario: Bidirectional latch control in vehicle door modules, requiring silent, reliable movement under 12V battery supply.

IC Role / Device Role / Timing Role: H-bridge driver executing forward/reverse commands from body controller MCU; DIR/ENBL interface synchronizes with CAN message timing.

Use Value: Integrated current sense enables stall detection during jamming events; low-IQ brake mode maintains lock position during sleep without wake-up current drain.

Use Scenario: Precision positioning of valves or dampers in HVAC and factory automation, powered from 24V DC rails.

IC Role / Device Role / Timing Role: Motor interface translating PWM speed commands and direction signals into controlled torque delivery; cycle-by-cycle regulation prevents overshoot during rapid stops.

Use Value: 45mΩ LS-FET R_DS(ON) minimizes heat during frequent brake cycles; TSSOP-20EP thermal pad sustains 5A continuous current in confined enclosures.

Robotic Joint Controllers

Smart Appliance Motor Drives

Use Scenario: Compact servo-like motion in collaborative robot end-effectors, where size, thermal headroom, and fault resilience are critical.

IC Role / Device Role / Timing Role: Reversible drive for small DC gearmotors; nFAULT provides real-time hardware-level fault signaling to safety PLCs.

Use Value: 165°C thermal shutdown with 20°C hysteresis ensures graceful degradation during transient overloads; VISEN feedback enables closed-loop current control in firmware.

Use Scenario: Bidirectional drum rotation in washing machines or coffee grinders, operating from universal 100–240V AC-derived 24V DC supplies.

IC Role / Device Role / Timing Role: Primary motor interface handling start-up surge, stall conditions, and variable-speed profiles; UVLO prevents erratic behavior during brownouts.

Use Value: 4V–40V input range accommodates wide-line variations; integrated OVP protects against rectifier transients; RoHS/lead-free compliance meets global appliance standards.

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
TB6612FNG	Lower 13V max VIN, 1.2A continuous current, no internal charge pump - requires external bootstrap capacitors for high-side drive.	Suitable for low-voltage toys or educational kits; lacks current sense output and configurable OCP.	Select when cost sensitivity outweighs performance; avoid for 24V+ or current-monitoring applications.
VNH7040AS	Higher 41V max VIN, 5.5A continuous, but uses SPI interface instead of DIR/ENBL logic - requires MCU firmware integration.	Better suited for ASIL-B automotive subsystems needing diagnostics; adds complexity vs. MP6612D's simplicity.	Choose for functional safety compliance; not drop-in due to communication protocol and layout changes.

Compared with TB6612FNG and VNH7040AS, MP6612DGF-Z uniquely balances wide 4–40V operation, integrated current sense, logic-level control, and thermal robustness in a single TSSOP-20EP package - making it optimal for space-constrained industrial and automotive motion systems requiring minimal external components.

Availability

MP6612DGF-Z is available at Aetrix Electronics and suitable for automotive door locks, industrial linear actuators, robotic joint controllers, and smart appliance motor drives requiring stable component supply across production lifecycles.

Supply support for MP6612DGF-Z 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

Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance power management ICs, with over two decades of expertise in DC-DC converters, motor drivers, and LED controllers.

The MP6612D belongs to MPS's H-bridge motor driver product line, designed specifically for compact, efficient, and fault-resilient bidirectional control of brushed DC and stepper motors in automotive, industrial, and consumer applications.

FAQ

What is the difference between MP6612 and MP6612D?

The MP6612 uses IN1/IN2 logic inputs for H-bridge control, while the MP6612D uses ENBL/DIR inputs - otherwise, electrical specifications, pinout, package, and protection features are identical. The -Z suffix denotes tape-and-reel packaging for automated assembly.

Can MP6612DGF-Z drive a stepper motor?

Yes - it can drive one winding of a bipolar stepper motor in half-step or microstepping configurations when paired with external current control logic. Its 5A rating supports NEMA 17-class motors; however, full 2-phase control requires two MP6612D units or a dedicated stepper driver IC.

How is current limit configured on MP6612DGF-Z?

Current limit is set by connecting a resistor between ISET and AGND. With 100μA/A scaling, a 5kΩ resistor yields 1.5V at 3A - triggering cycle-by-cycle regulation. Leaving ISET open disables current limiting; connecting to AGND fixes regulation at maximum threshold.

What thermal design practices are recommended?

Use a 4-layer PCB with ≥6 thermal vias under the exposed pad, connect all PGND pins and the pad to a solid internal ground plane, and place 10μF input and 1μF charge-pump capacitors within 2mm of respective pins. Thermal resistance drops to 8°C/W junction-to-case with proper layout.

Does MP6612DGF-Z support PWM speed control?

Yes - apply PWM to the ENBL pin for duty-cycle-based speed control while holding DIR constant. For smoother commutation, combine fixed-frequency PWM (≤100kHz) with DIR toggling to reverse direction without stopping, leveraging the device's fast 70ns enable/disable times.

Is nFAULT active during current regulation?

No - the nFAULT pin is disabled during active current regulation to prevent false fault assertions. It asserts only during hard faults: over-current (beyond OCP threshold), over-voltage, under-voltage lockout, or over-temperature events.

What is the minimum input voltage for reliable startup?

The MP6612D requires VIN ≥ 3.8V to exit UVLO and begin operation. Below this, all circuitry remains disabled. Startup delay is 500μs after VIN exceeds threshold, ensuring stable VCC and charge-pump initialization before output enable.

MP6612DGF-Z Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 20-TSSOP (0.173", 4.40mm Width) Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Motor Type - Stepper:: Bipolar

Motor Type - AC, DC:: Brushed DC

Function:: Driver - Fully Integrated, Control and Power Stage

Output Configuration:: Half Bridge (2)

Interface:: PWM

Technology:: NMOS

Step Resolution:: -

Applications:: General Purpose

Current - Output:: 5A

Voltage - Supply:: 4V ~ 40V

Voltage - Load:: 4V ~ 40V

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 20-TSSOP-EP

MP6612DGF-Z FAQ

1.How can I place an order for MP6612DGF-Z through Aetrix?

Please submit a Request for Quotation (RFQ) for MP6612DGF-Z 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 MP6612DGF-Z reliable?

The price and inventory of MP6612DGF-Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MP6612DGF-Z is usually 5 days.

3.What payment methods are accepted for MP6612DGF-Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MP6612DGF-Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MP6612DGF-Z?

MP6612DGF-Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MP6612DGF-Z 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 MP6612DGF-Z?

For technical support, including MP6612DGF-Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MP6612DGF-Z requirements.

6.How does Aetrix verify that MP6612DGF-Z is sourced from the original manufacturer or authorized distributors?

All MP6612DGF-Z 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 MP6612DGF-Z meets industry standards.

7.What is the process for return or replacement of MP6612DGF-Z?

All MP6612DGF-Z units undergo pre-shipment inspection (PSI). If there is an issue with MP6612DGF-Z, 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 MP6612DGF-Z part is unused and in its original packaging.

Return procedure for MP6612DGF-Z:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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