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MPX2003GY Datasheet(PDF) 1 Page - Monolithic Power Systems |
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MPX2003GY Datasheet(HTML) 1 Page - Monolithic Power Systems |
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1 / 37 page  MPX2003 Up to 140kHz All-in-One Flyback Controller with Integrated Primary Control Circuitry and Secondary Synchronous Rectification Driver MPX2003 Rev. 1.0 MonolithicPower.com 1 8/5/2022 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2022 MPS. All Rights Reserved. DESCRIPTION The MPX2003 is an all-in-one flyback controller with an integrated primary driving circuit, secondary controller, synchronous rectification driver, and safety-compliant feedback. It offers the benefits of both primary-side regulation (PSR) and secondary-side regulation (SSR). A feedback circuit is not required, which reduces system complexity and the total BOM cost. The synchronous rectifier (SR) can match the driving signal of the primary-side MOSFET, meaning the SR can operate safely in continuous conduction mode (CCM). Meanwhile, the integrated SR controller regulates the SR MOSFET at a low threshold, which increases the overall efficiency and design flexibility. An internal linear regulator is integrated for the SR power supply, so the MPX2003 can drive the low-side SR MOSFET without auxiliary winding, even when the output is low. The MPX2003 can run in CCM under heavy loads, then operate in quasi-resonant (QR) mode when the load decreases. If the load drops further, the MPX2003 works in pulse-frequency modulation (PFM) mode. The switching frequency (fSW) is fixed at 20kHz when the device enters burst mode, which can prevent audible noise. The MPX2003 achieves high efficiency under most load conditions while improving electromagnetic interference (EMI) performance. The MPX2003 features advanced protections, including VCC over-voltage protection (OVP), primary over-current protection (POCP), secondary-sense output overload protection (OLP), internal brown-in/brownout (B/I, B/O), short-circuit protection (SCP), current-sense short protection (SSP), current-sense open protection (SOP), SR gate open/short protection (SGOP/SGSP), SRD abnormal protection (SRDP), FB OVP and under-voltage protection (UVP), internal thermal shutdown, under-voltage lockout (UVLO), and an externally triggered protection (Ext.P). The MPX2003 is available in SOICW-16 and TSOICW16-15 packages. FEATURES • Isolation Voltage >3750V AC • 100% Production HIPOT Compliance Testing • UL1577 and IEC62368 Safety Approved, DIN VDE V 0884-17 in Process • Integrated Multi-Mode: Discontinuous Conduction Mode (DCM), Quasi-Resonant (QR) Mode, and Continuous Conduction Mode (CCM) • Flyback Controller, Secondary-Side Synchronous Rectifier (SR) Sensing/Driving Circuitry, and Safety-Compliant Feedback Link • Integrated 650V Primary-Side Current Source and 150V Secondary-Side Current Source • Less than 30mW in Standby Mode • Improved SR Control for Reliable Operation and Higher Efficiency • V CC Over-Voltage Protection (OVP), Primary Over-Current Protection (POCP), Secondary-Sense Output Overload Protection (OLP), Internal Brown- In/Brownout (B/O, B/I), Short-Circuit Protection (SCP), Current-Sense Short Protection (SSP), Current-Sense Open Protection (SOP), SR Gate Open/Short Protection (SGOP/SGSP), SRD Abnormal Protection (SRDP), FB OVP and Under- Voltage Protection (UVP), Internal Thermal Shutdown, Under-Voltage Lockout (UVLO), and an Externally Triggered Protection (Ext.P) • Available in TSOICW16-15 and SOICW-16 Packages APPLICATIONS • High-Performance USB PD Adapters • Offline Battery Chargers • High Efficiency, High-Current Power Supplies All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are trademarks of Monolithic Power Systems, Inc. or its subsidiaries. |
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