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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Power Supply Controllers, Monitors

Monolithic Power Systems Inc. MPX2002GYT-P

Name: MPX2002GYT-P
Brand: Monolithic Power Systems Inc.
SKU: MPX2002GYT-P
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: MPX2002GYT-P

Manufacturer:: Monolithic Power Systems Inc.

Category:: Power Supply Controllers, Monitors

Package:: 16-SOIC (0.295", 7.50mm Width), 15 Leads

Datasheet:: MPX2002GYT-P.pdf

Description:: ALL-IN-ONE FLYBACK CONTROLLER WI

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Product details

Overview

MPX2002GYT-P from Monolithic Power Systems is an all-in-one flyback controller integrating primary-side regulation (PSR), secondary-side synchronous rectification (SR) control, safety-compliant feedback, and multi-mode operation (DCM/QR/CCM). It delivers <30mW standby power, supports 650V primary-side and 150V secondary-side voltage handling, and enables high-efficiency USB PD adapters and offline battery chargers without auxiliary winding.

For engineers reviewing the MPX2002GYT-P datasheet, MPX2002GYT-P pinout, MPX2002GYT-P application, or MPX2002GYT-P equivalent, key selection considerations include integrated SR gate drive timing alignment with primary MOSFET, CCM-safe operation, 3.75kVRMS isolation, UL1577/IEC62368 safety certification, and burst-mode 20kHz fixed-frequency operation to suppress audible noise.

Technical Context

The MPX2002GYT-P implements dual-domain control: a primary IC handles HV sensing, brown-in/brownout detection, PDRV output, and CS-based peak current regulation, while a secondary IC manages FB/IS-based CV/CC regulation, SDRV timing, SRD-sensed QR control, and COMP-loop compensation. Communication between domains occurs via isolated digital signaling-not optocoupler-based analog feedback.

Its multi-mode operation transitions from CCM at heavy loads to quasi-resonant (QR) at medium loads and pulse-frequency modulation (PFM) at light loads, with burst mode engaging at <20kHz to eliminate acoustic noise. Internal linear regulators power both IC domains-VCC for primary and VDD for secondary-with independent UVLO thresholds (VCC-MIN = 8.3V, VDD-ON = 4.5V) and thermal shutdown at 150°C on both sides.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Voltage	3.75kVRMS - Enables reinforced insulation per IEC62368 and UL1577 for Class II AC/DC adapters.
Primary HV Rating	650V - Supports universal input (90–265VAC) with internal start-up current source and line-compensated OCP.
Secondary SRD Rating	150V - Allows direct sensing of SR MOSFET drain in high-current, low-V_DS applications like 20V USB PD.
Standby Power	<30mW - Meets DOE Level VI and EU CoC Tier 2 efficiency requirements without auxiliary winding.
Switching Modes	DCM / QR / CCM / PFM / Burst - Automatic load-dependent mode selection improves efficiency across 0–100% load range.
Burst Frequency	Fixed 20kHz - Eliminates audible coil whine during light-load operation.
Feedback Reference	1.22V ±1% - High-precision FB reference enables ±1% output voltage regulation without external trimming.
Thermal Protection	150°C OTP with 40°C hysteresis - Dual-domain (primary & secondary) thermal shutdown prevents latch-up during sustained overload.

Pinout & Package

MPX2002GYT-P is packaged in TSOICW16-15 (10.3mm × 10mm × 1.7mm), a thermally enhanced wide-body SOIC variant with 15 pins and one NC pad. The package supports >3.75kVRMS creepage/clearance and is rated MSL-3.

Pin/Terminal	Circuit Role	Design Meaning
HV	High-voltage input	650V-rated pin sourcing internal start-up current; enables brown-in/out detection and line-compensated OCP.
PDRV	Primary MOSFET gate driver	9.6V high-side driver with 20ns rise time; drives external primary-side MOSFET directly.
CS	Primary current sense	0.635V threshold with 250ns blanking; implements peak current mode control and SCP with slope compensation.
SRD	Synchronous rectifier drain sense	-37mV turn-on threshold; senses SR MOSFET V_DS to enable zero-voltage switching in QR/CCM modes.
SDRV	Secondary MOSFET gate driver	4.3V–10V output with 150ns turn-on delay; drives low-side SR MOSFET without auxiliary winding.
FB	Output voltage feedback	1.22V reference input; supports CV regulation, OVP (118% V_REF), and OLP via external resistor divider.
IS	Output current sense	42mV OLP threshold; enables accurate constant-current regulation and cable drop compensation.
COMP	Error amplifier output	Transconductance 430µA/V; connects external RC network for loop stability and dynamic response tuning.

Key Features

Feature	Design Value
Integrated PSR + SSR control	Eliminates optocoupler and TL431, reducing BOM count by ≥4 components and enabling compact 28mm × 28mm adapter designs.
SR gate drive synchronized to primary	Enables safe CCM operation with <1.05µs minimal SDRV on-time, preventing shoot-through during high-current charging.
No auxiliary winding required	VDD powered directly from SRD pin; supports full regulation down to 5V output without auxiliary bias winding or diode.
Multi-level protection suite	Includes SGOP/SGSP, SRDP, SSP, Ext.P, and dual-domain OTP-reducing need for external fault-handling circuitry.
EMI-optimized QR/PFM transition	Soft-switching valley detection and frequency dithering reduce conducted EMI peaks by ≥6dB compared to fixed-frequency flybacks.

Applications

USB PD Fast Charging Adapter

Industrial Offline Battery Charger

Use Scenario: 65W GaN-based USB PD 3.1 adapter delivering 20V/3.25A with <1% load regulation over 0–100% load.

IC Role / Device Role / Timing Role: MPX2002GYT-P serves as the system's all-in-one flyback controller, managing primary switching, secondary SR timing, and isolated CV/CC regulation without optocoupler.

Use Value: Achieves >93% peak efficiency at 230VAC input and reduces no-load consumption to 28mW-exceeding DOE Level VI requirements.

Use Scenario: 24V/5A sealed lead-acid charger for telecom backup systems operating across -40°C to +85°C ambient.

IC Role / Device Role / Timing Role: MPX2002GYT-P provides robust CCM+QR hybrid operation, enabling stable 24V constant-voltage and 5A constant-current delivery under wide-line and temperature variation.

Use Value: Integrated brown-in/out detection and dual-domain OTP ensure reliable startup and shutdown across unstable AC grids without external supervision.

Medical-Grade Low-Noise Power Supply

High-Density Consumer AC/DC Adapter

Use Scenario: 15W Class II medical power supply (IEC60601-1) powering patient-monitoring sensors with <5mVpp output ripple.

IC Role / Device Role / Timing Role: MPX2002GYT-P acts as the isolated feedback and SR controller, using FB/IS dual-loop regulation and burst-mode 20kHz switching to suppress audible noise.

Use Value: Fixed 20kHz burst frequency eliminates coil whine below 10% load-critical for quiet clinical environments.

Use Scenario: 45W ultra-thin wall adapter (≤20mm thickness) for laptops, requiring high power density and <300mW no-load consumption.

IC Role / Device Role / Timing Role: MPX2002GYT-P integrates primary driver, SR controller, and safety-compliant communication, replacing discrete PSR+SSR+opto solution.

Use Value: Reduces component count by 7 parts and PCB area by 35%, enabling 18W/in² power density while maintaining EN55022 Class B EMI compliance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar all-in-one flyback controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
UCC28782RTWR	TI device uses analog optocoupler feedback + external SR controller; lacks integrated SR driver and safety-certified isolation barrier.	Requires separate UCC24612 SR driver and optocoupler; increases BOM cost and layout complexity.	Select when existing design uses TI ecosystem and requires pin-to-pin compatibility with UCC28780 series.
INN3379C-H305	InnoSwitch3 device integrates primary/secondary on single die with FluxLink isolation; higher integration but fixed 650V primary rating and no PFM mode.	Supports only DCM/QR operation-cannot sustain CCM at high loads, limiting max output current to 3A at 20V.	Select for highest integration and lowest EMI in sub-40W applications where CCM operation is not required.

Compared with UCC28782RTWR and INN3379C-H305, MPX2002GYT-P uniquely combines true CCM-capable SR control, no-auxiliary-winding VDD generation, and certified 3.75kVRMS isolation in a single TSOICW16-15 package-enabling higher power density and lower system cost in 45–65W USB PD designs.

Availability

MPX2002GYT-P is available at Aetrix Electronics and suitable for high-performance USB PD adapters, industrial offline battery chargers, and medical-grade low-noise power supplies requiring stable component supply, long-term lifecycle support, and RoHS/REACH-compliant sourcing.

Supply support for MPX2002GYT-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 20 years of expertise in DC/DC converters, AC/DC controllers, motor drivers, and LED drivers.

The MPX2002 product line targets high-efficiency, low-BOM-count offline flyback power supplies-designed specifically for USB PD, fast-charging adapters, and industrial battery chargers needing integrated PSR+SSR functionality and safety certification.

FAQ

What is the maximum output power achievable with MPX2002GYT-P in continuous conduction mode?

MPX2002GYT-P supports up to 65W output in CCM at 230VAC input with proper thermal design. Its 650V HV pin, 0.4V CS threshold, and 10µs t_ON-MAX enable high-power operation; measured data shows stable 20V/3.25A delivery with <1% load regulation and >92% efficiency at full load.

Does MPX2002GYT-P require an external optocoupler for feedback isolation?

No. MPX2002GYT-P uses an internally certified digital isolation barrier for primary-to-secondary communication. Feedback signals (FB, IS, COMP) are transmitted across the isolation boundary without optocouplers or TL431, reducing component count and improving reliability.

How does the MPX2002GYT-P handle synchronous rectifier gate drive timing in quasi-resonant mode?

MPX2002GYT-P monitors SRD pin voltage to detect valley switching points. When SRD falls below -37mV, SDRV turns on with 270–570ns blanking; turn-off occurs when SRD rises above 8–28mV. This ensures zero-voltage turn-on and controlled turn-off-minimizing body-diode conduction loss in QR mode.

Can MPX2002GYT-P operate with a 5V output and no auxiliary winding?

Yes. The VDD pin is powered directly from the SRD pin, which charges VDD during SR conduction. Tested performance confirms stable 5V/3A operation with full regulation and <30mW no-load consumption-even at minimum input (90VAC) and full load-without auxiliary winding or bias circuitry.

What protections are implemented on the secondary side of MPX2002GYT-P?

Secondary-side protections include FB OVP/UVP (118%/90% V_REF), IS-based OLP (42mV threshold), SR gate open/short detection (SGOP/SGSP), SRD abnormal behavior monitoring (SRDP), VDD UVLO (4.25V), and secondary OTP (150°C). All trigger automatic hiccup-mode recovery or latched shutdown.

Is MPX2002GYT-P compliant with global safety standards?

Yes. MPX2002GYT-P is UL1577 and IEC62368-1 certified for reinforced insulation, with 3.75kVRMS isolation voltage and 100% production HIPOT testing. DIN VDE V 0884-17 certification is in progress, supporting worldwide regulatory acceptance for Class II AC/DC power supplies.

MPX2002GYT-P Specifications

Product attributes: Attribute value

Manufacturer:: Monolithic Power Systems Inc.

Series:: -

Package/Case:: 16-SOIC (0.295", 7.50mm Width), 15 Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: -

Applications:: Secondary-Side Controller, Synchronous Rectifier

Voltage - Input:: -

Voltage - Supply:: -

Current - Supply:: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-TSOICW15

MPX2002GYT-P FAQ

1.How can I place an order for MPX2002GYT-P through Aetrix?

Please submit a Request for Quotation (RFQ) for MPX2002GYT-P on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for MPX2002GYT-P reliable?

The price and inventory of MPX2002GYT-P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MPX2002GYT-P is usually 5 days.

3.What payment methods are accepted for MPX2002GYT-P?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MPX2002GYT-P transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MPX2002GYT-P?

MPX2002GYT-P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MPX2002GYT-P order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for MPX2002GYT-P?

For technical support, including MPX2002GYT-P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MPX2002GYT-P requirements.

6.How does Aetrix verify that MPX2002GYT-P is sourced from the original manufacturer or authorized distributors?

All MPX2002GYT-P products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MPX2002GYT-P meets industry standards.

7.What is the process for return or replacement of MPX2002GYT-P?

All MPX2002GYT-P units undergo pre-shipment inspection (PSI). If there is an issue with MPX2002GYT-P, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The MPX2002GYT-P part is unused and in its original packaging.

Return procedure for MPX2002GYT-P:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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