Monolithic Power Systems Inc. MPQ4242GVE-0000-AEC1-Z

Overview

MPQ4242GVE-0000-AEC1-Z from Monolithic Power Systems is an AEC-Q100 Grade 1 qualified, fully integrated USB PD 3.0 + PPS sourcing solution for automotive USB-C ports. It integrates a 4-switch buck-boost converter (4.8V–36V input, 3.3V–22.5V output), PD controller, and I²C interface in a single QFN-22 package. It delivers up to 5A continuous output current and supports dual-port power sharing in vehicle infotainment and ADAS power systems.

For engineers reviewing the MPQ4242GVE-0000-AEC1-Z datasheet, MPQ4242GVE-0000-AEC1-Z pinout, MPQ4242GVE-0000-AEC1-Z application, or MPQ4242GVE-0000-AEC1-Z equivalent, key selection criteria include its AEC-Q100 qualification, integrated 4-switch topology eliminating external FETs, ±5% CC current limit accuracy, configurable 250/420 kHz switching with spread spectrum, and support for QC 3.0, Huawei FCP, and BC1.2 legacy charging modes.

Technical Context

The MPQ4242 implements a synchronous 4-switch buck-boost architecture with internal high- and low-side power switches (R_DS(on) = 15–41.5 mΩ), enabling seamless transition between buck, boost, and buck-boost modes across wide VIN/VOUT ratios. Its embedded USB PD 3.0 controller handles BMC physical layer signaling, PDO negotiation (up to 7 profiles), and PPS voltage/current stepping with <3.7 µs unit interval timing.

It features dual thermal-sense inputs (NTC/NTC2), programmable fault response (hiccup OCP, OVP at 24–26 V, thermal shutdown at 175°C), and configurable PD state machine behavior during low battery or overtemperature events. Dual-port operation uses POWER_SHARE1/POWER_SHARE2 pins to coordinate total system power allocation without external arbitration logic.

Key Specifications

Pinout & Package

MPQ4242GVE-0000-AEC1-Z is housed in a thermally enhanced QFN-22 (4mm × 5mm) package with exposed thermal pad and wettable flanks for automotive-grade solder joint inspection. Pin functions are validated per MPS MPQ4242 Rev. 1.0 datasheet (June 2022).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB PD sourcing applications.

Compared with MPQ4242GVE-0000-AEC1-Z, the -0001 variant trades field-programmability for guaranteed 45W compliance, while NCP81239 requires full PD stack implementation - making the MPQ4242 the only single-package AEC-Q100 solution with certified PD 3.0 + PPS functionality.

Availability

MPQ4242GVE-0000-AEC1-Z is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS camera modules, and EV onboard charging ports requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.

Supply support for MPQ4242GVE-0000-AEC1-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 for automotive, industrial, and consumer markets, with design centers in the US, China, and Taiwan.

The MPQ4242 belongs to MPS's automotive-qualified USB PD portfolio, engineered specifically for single-chip, AEC-Q100-compliant USB-C power sourcing in space-constrained vehicle subsystems where safety, reliability, and protocol certification are mandatory.

FAQ

What USB PD specifications does MPQ4242GVE-0000-AEC1-Z support?

The MPQ4242GVE-0000-AEC1-Z fully supports USB PD 3.0, including Programmable Power Supply (PPS) with 7 configurable PDOs, BMC physical layer signaling (3.03–3.7 µs unit interval), and backward compatibility with BC1.2 DCP, 3A divider, and 1.2V/1.2V modes. It also implements QC 3.0 and Huawei FCP protocols via integrated analog comparators and state machines.

How is the 60W capability configured in MPQ4242GVE-0000-AEC1-Z?

The "-0000" suffix denotes the default 60W OTP configuration, pre-programmed at factory to deliver 20V/3A (60W) as primary PDO. Configuration is stored in one-time programmable memory and can be customized via I²C before final system programming. The -0001 variant is locked to 45W and cannot be reprogrammed.

Does MPQ4242GVE-0000-AEC1-Z require external MOSFETs?

No - it integrates all four power switches (two high-side, two low-side) with R_DS(on) values of 15–41.5 mΩ. External MOSFETs are optional: HS_G and GATE pins support paralleling an external high-side N-FET or adding low-side switching for battery short-to-ground protection, but are not required for basic 60W operation.

What thermal protection mechanisms are implemented?

The device includes junction thermal shutdown at 175°C with 20°C hysteresis, dual NTC/NTC2 inputs for external temperature monitoring, and configurable PD power throttling during low battery voltage or overtemperature. Fault conditions trigger open-drain FAULT pin assertion and automatic hiccup-mode current limiting.

Can MPQ4242GVE-0000-AEC1-Z support dual USB-C ports?

Yes - two MPQ4242 ICs can operate in coordinated dual-port mode using POWER_SHARE1 and POWER_SHARE2 pins. When one port detects overtemperature or low battery, both devices reduce output power to a shared threshold (PS_PDP_THD), enabling intelligent total system power capping without host MCU involvement.

Is line drop compensation adjustable?

Yes - line drop compensation is programmable via I²C register 0x1E (bit[6]). At 3A load, it delivers 150 mV (bit[6]=0) or 300 mV (bit[6]=1) compensation, correcting for voltage loss across USB-C cables to maintain target VBUS at the receptacle rather than at the IC output pin.

What is the significance of wettable flanks in the QFN-22 package?

Wettable flanks provide vertical sidewall plating on all perimeter pins, enabling automated optical inspection (AOI) of solder joints during SMT reflow. This is mandatory for automotive AEC-Q100 production to verify void-free solder fillets and ensure mechanical reliability under thermal cycling and vibration.