Monolithic Power Systems Inc. MPQ5029GD-C-AEC1-P

Overview

MPQ5029GD-C-AEC1-P from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified automotive USB Type-C port controller integrating a 25mΩ current-limit switch, BC1.2/DCP/QC3.0 charging identification, short-to-battery protection on CC1/CC2/DP/DM/OUT pins, and programmable line drop compensation for 5V output. It delivers 3A continuous output current with ±4kV HBM ESD rating and supports 5V/3A DFP mode in vehicle infotainment and center console charging ports.

For engineers reviewing the MPQ5029GD-C-AEC1-P datasheet, MPQ5029GD-C-AEC1-P pinout, MPQ5029GD-C-AEC1-P application, or MPQ5029GD-C-AEC1-P equivalent, key selection criteria include its dual-stage UVLO (2.4V/2.85V), hiccup-mode OCP with 2ms on-time, QC3.0 voltage transition timing (20–60ms glitch), and thermal management via NTC pin with 60°C recovery threshold.

Technical Context

The MPQ5029GD-C-AEC1-P implements a dual-stage under-voltage lockout (UVLO) with 2.4V first threshold enabling ADJ regulation and 2.85V second threshold enabling MOSFET turn-on. Its ADJ pin sinks up to 500µA to regulate upstream DC/DC output voltage and provides linear line drop compensation proportional to load current and RDROP resistor value.

Charging mode detection uses integrated logic for BC1.2 DCP (40Ω DP/DM short resistance), 1.2V/1.2V mode (1.2V ±0.1V output), divider mode (2.7V ±0.15V), and QC3.0 handshake (0.3V data detect threshold, 2.0V output select reference). OVP configuration via OVP pin selects between 5.75V fixed threshold (OVP high), no OVP (OVP float), or auto-QC3.0 + OVP (OVP grounded).

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with NCP81239MNTXG and TUSB8041ARGCR, MPQ5029GD-C-AEC1-P uniquely integrates QC3.0 negotiation, Type-C DFP control, and active line drop compensation-enabling single-chip 5V/3A or 9V/2A automotive charging without firmware or external sensing.

Availability

MPQ5029GD-C-AEC1-P is available at Aetrix Electronics and suitable for automotive infotainment systems, center console charging hubs, and telematics modules requiring stable component supply with AEC-Q100 Grade 1 qualification and long-term production continuity.

Supply support for MPQ5029GD-C-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 global manufacturing and quality certifications including IATF 16949.

The MPQ5029 belongs to MPS's automotive-grade USB power delivery controller product line, designed specifically for robust, standalone charging port implementation in vehicles where MCU resources are constrained and functional safety is critical.

FAQ

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

The MPQ5029GD-C-AEC1-P supports 3A continuous output current in Type-C 5V DFP mode. This is achieved with a 25mΩ RDS(ON) power MOSFET and validated across –40°C to +125°C junction temperature. Current limit is programmable via external ILIM resistor, with typical values of 3.55A at 1.78kΩ and 2.75A in Type-A mode.

How does the MPQ5029GD-C-AEC1-P implement short-to-battery protection?

Short-to-battery protection is implemented on OUT, DP, DM, CC1, and CC2 pins using internal high-voltage tolerant circuitry that detects >12V on any of these pins relative to GND and disables the affected path within 10µs. This prevents latch-up and damage when adjacent 12V/24V battery rails contact USB signal lines due to mechanical fault or assembly error.

Can MPQ5029GD-C-AEC1-P support both QC3.0 and USB Type-C simultaneously?

Yes. The MPQ5029GD-C-AEC1-P natively supports QC3.0 voltage negotiation (3.6–12V in 200mV steps) and USB Type-C 5V/3A DFP operation concurrently. When a Type-C cable is detected, CC1/CC2 configure VCONN and negotiate power role; DP/DM then execute QC3.0 handshake independently-enabling seamless transition from 5V to 9V/12V without host MCU involvement.

What is the purpose of the ADJ pin and how is it configured?

The ADJ pin sinks up to 500µA to regulate the upstream DC/DC converter's feedback node, enabling precise 5.1V output and line drop compensation. It is connected to the FB pin of a buck regulator (e.g., MPQ4483). For line drop compensation, a resistor (RDROP) connects ADJ to GND; value selection (e.g., 1kΩ) determines compensation slope (400mV at 3A).

Does MPQ5029GD-C-AEC1-P require external firmware or a microcontroller to operate?

No. MPQ5029GD-C-AEC1-P operates autonomously with no firmware requirement. All charging protocols-BC1.2 DCP, 1.2V/1.2V, divider mode, QC3.0, and Type-C DFP-are handled by on-chip state machines. Only passive components (ILIM, RDROP, NTC network, OVP pull) are needed for full functionality in automotive environments.

What thermal management features are included in MPQ5029GD-C-AEC1-P?

The device includes NTC-based thermal monitoring with user-configurable thresholds: trip at 80°C (6–12% VCC), recovery at 60°C (16.5% VCC), and hard shutdown at 150°C junction temperature. An internal thermal shutdown circuit with 25°C hysteresis protects against permanent damage, and the QFN-14 package's exposed pad enables efficient heat transfer to PCB copper layers.

How is input over-voltage protection configured on MPQ5029GD-C-AEC1-P?

OVP is configured via the OVP pin: grounding selects auto-QC3.0 + OVP (115% VIN threshold), floating disables OVP entirely (DCP-only mode), and pulling high sets fixed 5.75V OVP threshold. During OVP event, the internal 150–250Ω discharge path activates to rapidly reduce VIN, with deglitch time of 10µs and recovery at 5.45V.