Monolithic Power Systems Inc. MPQ5029GD-AEC1-P

Overview

MPQ5029GD-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified automotive USB Type-C port controller integrating a 25mΩ R_DS(ON) current-limit switch, BC1.2/DCP/QC3.0 charging mode detection, and short-to-battery protection on CC1/CC2/DP/DM/OUT pins. It delivers 3A continuous output at 5V, supports 3.6–12V QC3.0 output, and provides programmable line drop compensation for in-vehicle USB charging ports.

For engineers reviewing the MPQ5029GD-AEC1-P datasheet, MPQ5029GD-AEC1-P pinout, MPQ5029GD-AEC1-P application, or MPQ5029GD-AEC1-P equivalent, this device addresses critical requirements in automotive infotainment, telematics, and ADAS power delivery systems-specifically where robust USB-C DFP operation, thermal management via NTC, and input OVP with discharge are mandatory.

Technical Context

The MPQ5029GD-AEC1-P implements dual-stage UVLO (2.4V and 2.85V thresholds) to sequence ADJ regulation before MOSFET turn-on, enabling precise 5.1V output regulation via upstream DC/DC feedback control. Its ADJ pin sinks up to 500µA to dynamically adjust VOUT during QC3.0 voltage transitions (5V→9V→12V) with <60ms glitch time and no overshoot.

It integrates independent protection logic: hiccup-mode OCP triggered after 2ms overcurrent, fast SCP activation at ~6A peak, and input OVP with deglitch (10µs) and configurable threshold (5.75V high-state, 115% of VIN floating/GND). All I/O pins (CC1/CC2/DP/DM/OUT) feature ±4kV HBM ESD and short-to-battery tolerance.

Key Specifications

Pinout & Package

MPQ5029GD-AEC1-P is housed in a thermally enhanced QFN-14 (2mm × 3mm, 0.5mm pitch) package with exposed thermal pad. Pin 12 is GND; pin 11 is VCC (3.5V LDO output); pins 13/14 are CC1/CC2 for Type-C configuration channel detection and VCONN sourcing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB charging port controller applications.

Compared with NCP81239MNTXG and TPS65987D, MPQ5029GD-AEC1-P uniquely balances AEC-Q100 qualification, integrated 3A switch, QC3.0/Type-C/BC1.2 multi-protocol support, and line-drop compensation in a minimal 2mm×3mm footprint-making it optimal for space-constrained automotive USB-C DFP implementations without PD complexity.

Availability

MPQ5029GD-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera interfaces, and telematics control units requiring stable component supply, AEC-Q100 compliance, and production-ready USB-C charging functionality.

Supply support for MPQ5029GD-AEC1-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 for automotive, industrial, and consumer applications, with emphasis on integration and efficiency.

The MPQ5029 belongs to MPS's automotive-qualified USB power delivery controller product line, designed specifically to simplify USB-C DFP implementation in vehicles while meeting stringent AEC-Q100, ESD, and fault-protection requirements.

FAQ

What is the maximum continuous output current supported by MPQ5029GD-AEC1-P?

The MPQ5029GD-AEC1-P supports 3A continuous output current at 5V in Type-C DFP mode. This is verified across -40°C to +125°C junction temperature with 25mΩ R_DS(ON) and thermal shutdown at 150°C. Current limit is programmable via ILIM resistor (e.g., 1.78kΩ yields 3.55A typ.) and remains stable under line drop compensation.

How does the MPQ5029GD-AEC1-P implement USB Type-C configuration channel (CC) detection?

The MPQ5029GD-AEC1-P uses dedicated CC1 and CC2 pins to detect cable plug orientation, determine UFP/DFP role, and configure VCONN power delivery. It monitors CC voltage thresholds (e.g., 0.75V to enable VCONN, 2.75V to detect detach) with 100–200ms debounce timers, ensuring robust connection handling per USB Type-C specification.

Can MPQ5029GD-AEC1-P support both QC3.0 and BC1.2 charging protocols simultaneously?

Yes-the MPQ5029GD-AEC1-P automatically detects and executes BC1.2 (DCP/divider/1.2V modes) or QC3.0 based on DP/DM signaling without external intervention. It uses the same DP/DM pins for both protocols and transitions between 5V/9V/12V outputs using ADJ-controlled feedback adjustment, validated per QC3.0 timing and voltage-step requirements.

What protection features are integrated into MPQ5029GD-AEC1-P for automotive environments?

MPQ5029GD-AEC1-P integrates hiccup-mode OCP (2ms timeout), short-circuit protection (6A peak detection), input OVP with discharge (10µs deglitch), thermal shutdown (150°C), and ±4kV HBM ESD on all I/O pins. Crucially, CC1/CC2/DP/DM/OUT pins include short-to-battery protection-enabling survival during 12V battery faults common in automotive electrical systems.

Is external compensation required for the ADJ pin when implementing line drop compensation?

No external compensation is required. The ADJ pin sinks up to 500µA to regulate upstream DC/DC output; line drop compensation amplitude is set solely by the DROP pin resistor (e.g., 1kΩ → 400mV at 3A). Designers configure R1/R2 in the upstream converter's feedback network to ensure default output is <5.1V, enabling ADJ to remain active during load transients.

What is the function of the OVP pin beyond over-voltage protection?

The OVP pin serves dual functions: setting the input OVP threshold (5.75V/high, none/float, or 115%/GND) and selecting charging mode (DCP-only or DCP+QC3.0). When pulled low, it enables QC3.0 negotiation and automatic OVP; when floated, it disables QC3.0 but retains DCP modes; when high, it locks into DCP-only with fixed 5.75V OVP-providing hardware-configurable system behavior.

Does MPQ5029GD-AEC1-P require a minimum number of external components for basic operation?

Yes-only five essential external components are required: one ILIM resistor (for current limit), one DROP resistor (for line compensation), one NTC thermistor (for thermal monitoring), one 4.7µF ceramic cap on VCC, and one 5.1kΩ pull-down on CC1/CC2 for Type-C attach detection. No external FETs, op-amps, or discrete protection devices are needed.