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Infineon Technologies IDP2303AXUMA1
- Part No.:
- IDP2303AXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
IDP2303AXUMA1.pdf
- Description:
- IC OFFLINE SW HALF-BRDG 16DSO
- Quantity:
- Payment:
- Shipping:
Inventory:2,471
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Product details
Overview
IDP2303AXUMA1 from Infineon Technologies is a digital multi-mode PFC + LLC combo controller in PG-DSO-16 package, integrating 600 V HV startup cell, floating high-side gate driver (HSGD), and UART-configurable OTP memory. It delivers synchronous burst-mode control for PFC and LLC stages, supports X-cap discharge, and achieves <30 mW standby power in 75–300 W AC/DC adapters for TVs and notebooks.
For engineers reviewing the IDP2303AXUMA1 datasheet, IDP2303AXUMA1 pinout, IDP2303AXUMA1 application, or IDP2303AXUMA1 equivalent, key selection criteria include its dual-stage digital control architecture, integrated 600 V startup cell eliminating auxiliary supplies, configurable non-linear VCO curve for LLC, and one-time-programmable parameters for design flexibility without firmware updates.
Technical Context
The IDP2303AXUMA1 implements a dual-loop digital control system: a PFC stage with multi-mode operation (CCM/DCM/CRM) and adaptive soft-start, and an LLC half-bridge stage with time-controlled oscillator (TCO) startup and voltage-controlled oscillator (VCO) regulation. Its NanoDSP core runs at 66 MHz and executes real-time protection algorithms including PFCOCLP, LLCOCLP, and brown-in/brown-out detection via HV pin sampling.
Power delivery is fully integrated: the 600 V HV pin enables direct AC-line connection for startup and X-cap discharge; HSVCC is bootstrapped from VS; VCC is self-supplied post-startup. Protection includes UVLO/OVP on VCC, overtemperature shutdown, and dual-level LLC overcurrent (LLCOCP1/LLCOCP2) with auto-restart recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PFC Modes | Configurable CCM, DCM, and CRM operation - enables optimal efficiency across light-to-full load in universal-input PFC stages. |
| LLC Control | Voltage-controlled oscillator (VCO) with non-linear frequency curve - improves transient response and reduces output ripple under dynamic load. |
| Gate Drive Outputs | GD0 (PFC): 85 mA source / 800 mA sink; GD1 (LS): 120 mA / 500 mA; HSGD (HS): 520 mA / 1.3 A - directly drives discrete MOSFETs without external drivers. |
| Startup & Standby | Integrated 600 V HV startup cell + adaptive burst mode - eliminates auxiliary supply and achieves ≤30 mW no-load input power. |
| Configuration Interface | Half-duplex UART via MFIO pin - enables in-circuit parameter tuning (e.g., soft-start time, OVP threshold, burst mode entry point) without reprogramming. |
| Protection Features | PFCOCLP, PFCOCP, PFCOVP/UVP, PFCBIP/BOP, LLCOCLP, LLCOLP, LLCOCP1/2, OT, VCC UVLO/OVP - comprehensive fault coverage with auto-restart behavior. |
| Package | PG-DSO-16 (150 mil, exposed pad) - provides thermal performance suitable for convection-cooled 300 W designs with creepage-enhanced pin layout. |
Pinout & Package
Package: PG-DSO-16 (150 mil, thermally enhanced, creepage-optimized layout with internal exposed pad).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GD0 (Pin 1) | PFC Gate Driver Output | Drives PFC MOSFET gate with 85 mA source / 800 mA sink capability; connects to source of PFC switch via shunt resistor CS0. |
| CS0 (Pin 2) | PFC Current Sense Input | Monitors PFC inductor current via external shunt; enables cycle-by-cycle OCP and average-current-mode control. |
| VCC (Pin 3) | Main IC Supply | Primary logic supply (11.5–18 V); powered initially by HV startup cell, then sustained by auxiliary winding or bootstrap. |
| GND (Pin 4) | Digital Ground | Reference for VCC, CSx, ZCD, MFIO, HBFB; isolated from HSGND to support floating high-side driver. |
| ZCD (Pin 5) | PFC Zero-Crossing Detection | Connects to PFC choke auxiliary winding; detects AC line zero-crossing for CRM/DCM mode timing and synchronization. |
| VS (Pin 6) | Bus Voltage Sense | High-impedance input for DC bus voltage monitoring; used for OVP/UVP, soft-start scaling, and brown-in/out detection. |
| HV (Pin 8) | High-Voltage Input | 600 V-rated pin for direct AC-line connection; powers startup cell, discharges X-capacitors, and samples AC voltage for line sensing. |
| MFIO (Pin 9) | UART Communication I/O | Half-duplex UART interface for OTP configuration and real-time AC voltage reporting; requires external pull-up. |
| HBFB (Pin 10) | LLC Feedback Input | Optocoupler-connected input for secondary-side voltage regulation; controls LLC switching frequency via VCO loop. |
| CS1 (Pin 11) | LLC Current Sense Input | Monitors half-bridge leg current via shunt; enables peak-current limiting and overcurrent protection (LLCOCP1/2). |
| GD1 (Pin 12) | LLC Low-Side Gate Driver | Drives low-side LLC MOSFET with 120 mA source / 500 mA sink; complements HSGD for full-bridge drive capability. |
| HSGND (Pin 14) | Floating High-Side Ground | Return path for HSVCC and HSGD; electrically isolated from GND to enable high-side MOSFET drive referenced to switching node. |
| HSVCC (Pin 15) | Floating High-Side Supply | Bootstrap-fed supply (10–18 V) for high-side driver; derived from VS through external diode/capacitor network. |
| HSGD (Pin 16) | LLC High-Side Gate Driver | Drives high-side LLC MOSFET with 520 mA source / 1.3 A sink; supports fast turn-on/turn-off in resonant half-bridge topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Digital Multi-Mode PFC | Automatically selects CCM/DCM/CRM based on load and line conditions - maintains >95% efficiency from 10% to full load in 230 VAC input. |
| Synchronous Burst Mode | Coordinated PFC+LLC burst activation during light load - reduces audible noise and eliminates need for separate burst controllers. |
| Direct X-Cap Discharge | HV pin actively discharges EMI filter X-capacitors after AC removal - meets IEC 62368-1 Class II touch-safety requirements without external circuitry. |
| One-Time Programmable (OTP) Memory | Stores 32+ configurable parameters (e.g., VCO slope, soft-start duration, OVP delay) - enables final design optimization without mask changes or firmware deployment. |
| Floating High-Side Driver | HSGD with 520 mA/1.3 A drive strength and integrated level-shift - eliminates external high-side driver IC and associated gate-drive transformers or isolators. |
Applications
| TV Power Adapters | Notebook Adapters |
|---|---|
Use Scenario: 150–250 W off-line SMPS for 4K/8K LCD/LED TVs with active PFC and resonant LLC output stage. IC Role / Device Role / Timing Role: Dual-stage digital controller managing PFC pre-regulator and LLC resonant converter, synchronizing burst modes and providing real-time line-voltage compensation. Use Value: Enables single-chip solution replacing discrete PFC+LLC controllers and external gate drivers, reducing BOM count by ≥7 components and PCB area by 25%. | Use Scenario: 90–190 W compact notebook adapters requiring <30 mW no-load power and low acoustic noise. IC Role / Device Role / Timing Role: Configurable digital timing engine executing adaptive burst mode, X-cap discharge, and non-linear VCO tuning to meet CoC Tier 2 and EU ErP Lot 6 requirements. Use Value: Achieves certified <0.3 W no-load consumption and <25 dB(A) acoustic noise without auxiliary winding or discrete discharge circuits. |
| Industrial SMPS | Medical Grade Power Supplies |
Use Scenario: 200–300 W open-frame industrial power supplies operating in extended temperature range (−40°C to +105°C ambient). IC Role / Device Role / Timing Role: Robust digital controller with dual-level LLC overcurrent protection (LLCOCP1/2), overtemperature shutdown, and brown-in/out detection for unregulated AC mains. Use Value: Supports 230 VAC ±15% input variation with automatic mode switching and failsafe restart-eliminates need for external line monitor ICs. | Use Scenario: 120–200 W medical-grade AC/DC converters requiring reinforced isolation and Class I/II safety compliance. IC Role / Device Role / Timing Role: Safety-critical controller implementing PFCOCLP, LLCOCLP, and auto-restart with programmable fault lockout timers per IEC 60601-1 Clause 15. Use Value: Reduces risk of single-point failure via independent PFC/LLC protection paths and hardware-based UVLO/OVP - simplifies safety certification documentation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital PFC+LLC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| UCC28070A | Analog dual-channel PFC+LLC controller with fixed-frequency PFC and analog VCO; no integrated HV startup or UART configuration. | Lacks X-cap discharge, burst coordination, and OTP - requires external HV startup IC and discrete burst control logic. | Select when cost-sensitive designs prioritize analog simplicity over digital configurability and ultra-low standby. |
| ICE5QSAG | Quasi-resonant flyback + PFC combo IC with integrated 650 V MOSFET; no LLC support or floating high-side driver. | Targets sub-90 W applications only; cannot replace IDP2303AXUMA1 in resonant half-bridge topologies above 100 W. | Select for compact, low-component-count flyback-PFC solutions where LLC efficiency and power density are not required. |
Compared with UCC28070A and ICE5QSAG, IDP2303AXUMA1 uniquely integrates digital multi-mode control, 600 V HV startup, coordinated burst, and floating high-side drive - enabling single-chip 75–300 W PFC+LLC designs with <30 mW standby and no auxiliary supply.
Availability
IDP2303AXUMA1 is available at Aetrix Electronics and suitable for TV power adapters, notebook adapters, industrial SMPS, and medical-grade power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for IDP2303AXUMA1 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in silicon carbide and digital power controller innovation.
IDP2303AXUMA1 belongs to Infineon's digital AC/DC controller product line, designed specifically for high-efficiency, low-standby, multi-kilowatt-per-square-inch adapter and SMPS applications requiring integrated PFC+LLC control and minimal external components.
FAQ
What is the function of the HV pin on IDP2303AXUMA1?
The HV pin serves three critical functions: (1) it connects to the AC input via resistive divider to power the internal 600 V startup cell, charging VCC before auxiliary winding takeover; (2) it actively discharges EMI filter X-capacitors after AC removal to meet safety standards; and (3) it samples high-voltage AC for brown-in/brown-out detection without external sensing circuitry.
Does IDP2303AXUMA1 require an external microcontroller for configuration?
No. Configuration is performed via UART using the MFIO pin and internal OTP memory. All parameters-including PFC soft-start time, LLC VCO slope, OVP thresholds, and burst mode entry point-are programmed once during manufacturing or final test. No host MCU, firmware, or runtime communication is needed in end equipment.
How does the floating high-side driver (HSGD) operate without an isolated supply?
HSGD uses a bootstrap architecture: HSVCC is charged via an external diode and capacitor from the VS node during low-side conduction. The HSGD output (Pin 16) drives the high-side LLC MOSFET gate with 520 mA source / 1.3 A sink current, referenced to HSGND (Pin 14), which floats with the switching node-enabling direct high-side drive without optocouplers or pulse transformers.
Can IDP2303AXUMA1 support both continuous and discontinuous conduction modes in PFC?
Yes. Its digital multi-mode PFC engine automatically transitions between continuous conduction mode (CCM), discontinuous conduction mode (DCM), and critical conduction mode (CRM) based on real-time load, line voltage, and inductor current. This ensures peak efficiency across the full 10–100% load range without manual mode selection or external mode-control pins.
IDP2303AXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Isolation:
- Isolated
- Internal Switch(s):
- No
- Voltage - Breakdown:
- -
- Topology:
- Half-Bridge
- Voltage - Start Up:
- 20.5 V
- Voltage - Supply (Vcc/Vdd):
- 90V ~ 264V
- Duty Cycle:
- -
- Frequency - Switching:
- 100kHz ~ 600kHz
- Power (Watts):
- -
- Fault Protection:
- Open Loop, Over Load, Over Temperature, Over Voltage
- Control Features:
- EN, Soft Start, Sync
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- PG-DSO-16
- Mounting Type:
- Surface Mount
IDP2303AXUMA1 FAQ
1.How can I place an order for IDP2303AXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for IDP2303AXUMA1 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 IDP2303AXUMA1 reliable?
The price and inventory of IDP2303AXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IDP2303AXUMA1 is usually 5 days.
3.What payment methods are accepted for IDP2303AXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IDP2303AXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IDP2303AXUMA1?
IDP2303AXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IDP2303AXUMA1 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 IDP2303AXUMA1?
For technical support, including IDP2303AXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IDP2303AXUMA1 requirements.
6.How does Aetrix verify that IDP2303AXUMA1 is sourced from the original manufacturer or authorized distributors?
All IDP2303AXUMA1 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 IDP2303AXUMA1 meets industry standards.
7.What is the process for return or replacement of IDP2303AXUMA1?
All IDP2303AXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with IDP2303AXUMA1, 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 IDP2303AXUMA1 part is unused and in its original packaging.
Return procedure for IDP2303AXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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