Monolithic Power Systems Inc. MP6613GV-Z

Overview

MP6613GV-Z from Monolithic Power Systems is a 4.5V to 45V, 5A single H-bridge motor driver IC integrating four N-channel MOSFETs with 75mΩ typical R_DS(ON) per FET. It delivers bidirectional current control for brushed DC and bipolar stepper motors, features integrated OCP, OVP, UVP, and thermal shutdown, and supports three configurable input modes (PWM/PHASE, ENBL/BRK, HS/LS) via INM[1:0] pins. Used in laser printers and 3D printer motion systems.

For engineers reviewing the MP6613GV-Z datasheet, MP6613GV-Z pinout, MP6613GV-Z application, or MP6613GV-Z equivalent, key selection criteria include its 5A continuous output capability at 25°C, dual-package availability (QFN-28), fault-indication via open-drain nFAULT, and support for synchronous rectification to reduce body-diode conduction loss in inductive loads.

Technical Context

The MP6613GV-Z implements a full H-bridge topology with independent high-side and low-side gate drivers powered by an internal charge pump (VCP ≥ VIN + 5V) and 5V LDO (VREG). Its input interface is dynamically reconfigurable across three logic modes using INM0/INM1, enabling PWM-driven, phase-controlled, or discrete HS/LS switching operation without external logic.

Protection is implemented at silicon level: over-current detection triggers within 1µs deglitch window and latches until nRESET assertion; UVLO activates at 4.5V rising threshold with 300mV hysteresis; thermal shutdown engages at 165°C with 15°C hysteresis. The nFAULT pin reports all faults as an open-drain active-low signal requiring external pull-up.

Key Specifications

Pinout & Package

MP6613GV-Z uses a thermally enhanced QFN-28 (4mm × 5mm) package with exposed thermal pad. Pin numbering follows standard top-view orientation; pins 1–14 and 15–28 are arranged counterclockwise starting from top-left corner. Dual OUT1 and OUT2 pins must be paralleled externally on PCB for current sharing.

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, MP6613GV-Z uniquely combines wide 4.5V–45V operation, triple-input-mode configurability, and integrated fault reporting in a single QFN-28 package - making it optimal for cost-sensitive yet robust industrial motion control where design reuse across voltage tiers matters.

Availability

MP6613GV-Z is available at Aetrix Electronics and suitable for laser printers, 3D printer motion systems, and textile machine actuators requiring stable component supply across extended production lifecycles.

Supply support for MP6613GV-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, including DC-DC converters, motor drivers, and LED controllers.

The MP6613 product line targets cost-effective, thermally robust H-bridge solutions for industrial automation and office equipment, emphasizing configurability, protection integration, and package scalability.

FAQ

What input voltage range does MP6613GV-Z support?

The MP6613GV-Z operates from 4.5V to 45V on the VIN pin. This range covers common industrial rails (12V, 24V, 36V) and enables direct connection to unregulated battery or rectified AC supplies without pre-regulation. Absolute maximum rating is +48V, but sustained operation above 45V triggers OVP shutdown.

How is the input mode selected on MP6613GV-Z?

Input mode is set by the logic levels on INM0 (pin 22) and INM1 (pin 23): 00 enables PWM/PHASE mode, 01 enables ENBL/BRK mode, and 10 enables HS/LS mode. These pins have internal pull-down resistors, so leaving them unconnected defaults to 00 mode. No external biasing is required.

Does MP6613GV-Z require external gate resistors?

No external gate resistors are required. The MP6613GV-Z integrates optimized gate drivers with slew-rate control to minimize EMI while ensuring reliable MOSFET switching. External resistors would degrade timing performance and are not recommended per the datasheet layout guidelines.

What is the purpose of the CPA and CPB pins?

CPA and CPB form the terminals for the external 100nF flying capacitor that powers the internal charge pump. This pump generates VCP ≥ VIN + 5V to fully enhance the high-side N-channel MOSFETs. The capacitor must be X7R dielectric and rated for at least the maximum VIN applied.

Can MP6613GV-Z drive a 48V motor?

No. The absolute maximum VIN rating is +48V, but the over-voltage protection (OVP) threshold is 45V nominal (48V max). Applying 48V will trigger immediate OVP shutdown and pull nFAULT low. For 48V systems, a pre-regulator or alternative driver with higher OVP threshold is required.

How does automatic synchronous rectification work in MP6613GV-Z?

When both high-side and low-side FETs are off and an OUTx pin voltage drops below GND (inductive kickback), the LS-FET turns on to recirculate current. Similarly, if V_OUTx exceeds VIN, the HS-FET turns on. This replaces lossy body-diode conduction with low-R_DS(ON) FET conduction, reducing power dissipation by up to 65%.

What thermal management is required for 5A continuous operation?

At 25°C ambient, 5A continuous output requires the QFN-28 thermal pad soldered to ≥4 cm² of 2oz copper with ≥6 thermal vias (0.3mm diameter) connecting to inner ground planes. Without this, derating begins at ~3.2A due to junction temperature limits (125°C max operating, 165°C shutdown).