Monolithic Power Systems Inc. MP6613GF-P

Overview

MP6613GF-P from Monolithic Power Systems is a single H-bridge motor driver IC designed for brushed DC and bipolar stepper motor control in industrial motion systems. It operates from 4.5V to 45V input voltage, delivers up to 5A continuous output current (dependent on thermal design), and integrates four N-channel MOSFETs with 75mΩ typical R_DS(ON) per FET. Its configurable pin-strapped control modes support PWM, phase/enable, and high-side/low-side drive schemes - deployed in 3D printers and stage lighting.

For engineers reviewing the MP6613GF-P datasheet, MP6613GF-P pinout, MP6613GF-P application, or MP6613GF-P equivalent, key selection criteria include its 4.5–45V wide VIN range, 5A current capability under defined thermal conditions, fault reporting via open-drain nFAULT, sleep mode quiescent current of 0.9–10µA, and TSSOP-28EP package compatibility with industrial PCB layouts.

Technical Context

The MP6613GF-P implements an integrated full H-bridge with automatic synchronous rectification to minimize body-diode conduction losses during inductive recirculation. Its gate drivers use dual internal supplies: VREG (5V) for low-side logic and VCP (VIN + 5V) for high-side bootstrap operation, requiring external 1µF capacitors on both rails.

Three pin-configurable input modes (INM[1:0]) define functional behavior: ENA/PWM mode enables independent half-bridge control; PHASE/ENBL mode supports direction + enable for bidirectional DC motors; HS/LS mode provides discrete high-side and low-side FET control. Protection includes OCP (6–9A trip), OVP (45–48V), UVLO (4.5V rising), and thermal shutdown at 165°C with 15°C hysteresis.

Key Specifications

Pinout & Package

TSSOP-28EP package (9.6mm × 4.4mm × 1.2mm) with exposed thermal pad; RoHS-compliant, MSL Level 2a, rated for industrial temperature range (−40°C to +125°C junction).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar H-bridge motor driver applications.

Compared with TB6612FNG and DRV8876N, the MP6613GF-P offers balanced voltage/current capability with minimal external components and industry-standard TSSOP packaging - ideal for cost-constrained, medium-power motion systems where pin-strapped simplicity and proven thermal reliability are prioritized over digital configurability or ultra-low voltage operation.

Availability

MP6613GF-P is available at Aetrix Electronics and suitable for 3D printer motion control, stage lighting actuation, and laser printer paper feed systems requiring stable component supply across extended production lifecycles.

Supply support for MP6613GF-P 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 MP6613 belongs to MPS's general-purpose motor driver product line, engineered for robust, low-component-count control of brushed DC and bipolar stepper motors in industrial automation and precision motion equipment.

FAQ

What is the maximum continuous current rating for MP6613GF-P under standard PCB conditions?

The MP6613GF-P delivers up to 5A continuous output current when mounted on a 4-layer PCB with ≥2 oz copper, thermal vias under the exposed pad, and adequate airflow. This rating assumes ambient temperature ≤70°C and VIN = 24V; derating applies above 70°C ambient or with reduced copper area.

How does the MP6613GF-P implement automatic synchronous rectification?

When both high-side and low-side FETs are off and V_OUTx drops below GND, the LS-FET turns on to conduct recirculating current; if V_OUTx exceeds VIN, the HS-FET activates. This replaces lossy body-diode conduction with active FET conduction, reducing power dissipation by up to 40% during PWM decay phases.

Can MP6613GF-P operate with a 5V logic supply while driving a 42V motor supply?

Yes - the MP6613GF-P accepts 1.8–5.5V logic inputs (VIH = 2V min, VIL = 0.8V max) independent of VIN. Its internal VREG (5V) and VCP (VIN+5V) supplies isolate logic-level signals from the high-voltage bridge, enabling direct interfacing with 3.3V or 5V MCUs even at 45V VIN.

What external capacitors are mandatory for stable MP6613GF-P operation?

Mandatory capacitors include: two 100nF X7R ceramics on VIN pins (one per pin), one 1µF X7R on VREG-to-GND, one 1µF X7R on VCP-to-VIN, and one 100nF X7R between CPA and CPB. All must be placed within 2mm of respective pins; bulk capacitance (e.g., 10–100µF) is recommended near VIN for high-current transients.

Does MP6613GF-P support brake mode, and how is it configured?

Yes - brake mode is enabled in INM[1:0] = 01 (PHASE/ENBL) mode by asserting BRK = 1 and BMOD = 1 (HS brake) or BMOD = 0 (LS brake). In brake mode, both HS and LS FETs on one side conduct simultaneously, forcing rapid motor current decay and mechanical stopping without relying on friction or external resistors.

How does the nFAULT pin behave during over-current events?

During OCP, OVP, or thermal shutdown, nFAULT is pulled low via an internal open-drain NMOS. It remains latched low until nRESET is pulsed low or VIN is cycled. An external pull-up resistor (typically 10kΩ to 3.3V or 5V) is required to generate a valid logic-high signal during normal operation.

Is MP6613GF-P pin-compatible with other MP66xx family members?

No - MP6613GF-P uses a unique 28-pin TSSOP-EP layout optimized for thermal performance and pin-strapped mode selection. MP6612 and MP6614 have different pin counts, functions, and package footprints; direct replacement requires PCB redesign and firmware adaptation.