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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > AC DC Converters, Offline Switches

Infineon Technologies ICE5QR1680AGXUMA1

Name: ICE5QR1680AGXUMA1
Brand: Infineon Technologies
SKU: ICE5QR1680AGXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE5QR1680AGXUMA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: 16-SOIC (0.154", 3.90mm Width), 12 Leads

Datasheet:: ICE5QR1680AGXUMA1.pdf

Description:: IC CTLR QUASI-RES FLYBACK 12DSO

Quantity:: RFQ Add To RFQ list

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Inventory:2,625

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Product details

Overview

ICE5QR1680AGXUMA1 from Infineon is a quasi-resonant AC-DC controller with integrated 800 V avalanche-rugged CoolMOS™, housed in PG-DSO-12 package. It delivers up to 50 W at 220 VAC ±20% and 27 W across 85–300 VAC input, supports digital frequency reduction up to 10 zero crossings, achieves <100 mW standby power via enhanced Active Burst Mode, and targets auxiliary power supplies in TVs and monitors.

For engineers reviewing the ICE5QR1680AGXUMA1 datasheet, ICE5QR1680AGXUMA1 pinout, ICE5QR1680AGXUMA1 application, or ICE5QR1680AGXUMA1 equivalent, key selection criteria include its 800 V drain rating, 1.53 Ω R_DS(on), DSO-12 thermal performance, cascode-based fast startup, and dual-line protection (OVP + brownout) for robust off-line flyback designs.

Technical Context

This IC integrates a PWM controller and high-voltage CoolMOS™ in one DSO-12 package, operating in quasi-resonant mode with digitally controlled zero-crossing switching to minimize EMI and improve efficiency. Its cascode configuration enables rapid VCC pre-charging and eliminates external startup resistors.

The device implements cycle-by-cycle current limiting, built-in soft-start, and programmable burst entry/exit thresholds via FB pin voltage. Protection includes auto-restart for VCC OVP/UVP, output overvoltage, overtemperature (T_j > 145°C), CS short-to-GND, and line-level faults (VIN OVP/brownout).

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS Rating	800 V - supports universal input (85–300 VAC) with margin for surge and ringing in flyback primary-side switching.
R_DS(on)	1.53 Ω @ T_j = 25°C - enables 50 W output at 220 VAC with low conduction loss and reduced heatsink requirement.
Standby Power	<100 mW - achieved via selectable Active Burst Mode, meeting stringent energy-efficiency standards (e.g., EU CoC Tier 2, DOE Level VI).
Digital ZC Count	Up to 10 - dynamically adjusts switching frequency to maintain QR operation across load and line variations, lowering audible noise and EMI.
VCC Operating Range	10–25.5 V - accommodates wide bias supply tolerance and supports direct winding-derived VCC without LDO.
Protection Functions	Auto-restart for VCC OVP/UVP, overload/open-loop, output OVP, overtemperature, CS short-to-GND, VIN OVP & brownout - reduces need for external fault-handling circuitry.

Pinout & Package

ICE5QR1680AGXUMA1 is packaged in PG-DSO-12 (12-pin exposed-pad SOIC), optimized for thermal dissipation in compact auxiliary power supplies. The exposed pad improves PCB heat transfer and supports higher continuous power delivery.

Pin/Terminal	Circuit Role	Design Meaning
1	GND	Power ground reference for all internal blocks; connects to PCB thermal pad for heat sinking.
2	VIN	Senses rectified line voltage via resistor divider; triggers brownout (<90 V) and OVP (>300 V) protection.
3	FB	Feedback input for regulation; also sets burst mode entry/exit thresholds and detects overload/open-loop fault.
4	CS	Primary-side current sense input; enables peak current limiting and CS short-to-GND detection.
5	VCC	IC supply pin; powers internal logic and gate driver; regulated by external capacitor (typically 10–47 µF).
6	NC	No connection - left floating per design; no internal circuitry attached.
7	ZCD	Zero-crossing detection input; used for QR timing, startup VCC charging, and output OVP sensing.
8–11	DRAIN	High-voltage drain terminal of integrated CoolMOS™; connects directly to transformer primary winding.
12	GND	Second ground terminal - provides low-inductance return path for high-frequency switching currents.

Key Features

Feature	Design Value
Integrated 800 V CoolMOS™	Eliminates external HV MOSFET and associated gate drive complexity while maintaining avalanche ruggedness for surge immunity.
Digital Frequency Reduction	Adjusts switching frequency based on zero-crossing count to sustain QR operation under light-load and low-line conditions, reducing EMI peaks.
Enhanced Active Burst Mode	Allows user-selectable burst entry/exit thresholds via FB pin voltage, enabling precise standby power tuning without firmware changes.
Cascode Startup Configuration	Enables direct VCC charging from DRAIN during startup, removing need for high-voltage startup resistor and improving reliability.
Comprehensive Auto-Restart Protections	Single-pin fault signaling (via FB or VCC behavior) simplifies system-level diagnostics and avoids latch-off failures in field deployments.

Applications

TV Auxiliary Power Supply

LCD/LED Monitor PSU

Use Scenario: Provides isolated 5 V/12 V bias rails for main board logic, backlight drivers, and HDMI hot-plug detection in 32–65" LCD/LED TVs.

IC Role / Device Role / Timing Role: Primary-side QR flyback controller with integrated HV switch; regulates output via optocoupler feedback and ZCD-synchronized switching.

Use Value: Achieves <100 mW no-load consumption and meets IEC 62368-1 creepage/clearance requirements using single DSO-12 component.

Use Scenario: Powers microcontroller, OSD interface, and LED dimming circuitry in commercial-grade monitors with tight board space constraints.

IC Role / Device Role / Timing Role: Off-line QR controller managing variable-output flyback with dynamic frequency scaling to suppress audible noise during brightness transitions.

Use Value: Delivers 27 W across full input range (85–300 VAC) with <150 mW typical standby, eliminating need for secondary-side synchronous rectification.

Set-Top Box Power Module

Home Appliance Control PSU

Use Scenario: Supplies 3.3 V/5 V rails for SoC, tuner, and USB peripherals in cable/satellite STBs with strict EMC Class B limits.

IC Role / Device Role / Timing Role: Quasi-resonant controller enforcing valley-switching to reduce high-frequency harmonics above 30 MHz.

Use Value: Digital ZC counter and ringing suppression time control lower conducted EMI by ≥6 dBµV compared to fixed-frequency alternatives.

Use Scenario: Powers MCU, display, and sensor interfaces in washing machines and refrigerators where long-term reliability under thermal cycling is critical.

IC Role / Device Role / Timing Role: Integrated HV controller with brownout detection and auto-restart, ensuring safe shutdown during unstable grid conditions.

Use Value: Robust line protection (VIN OVP + brownout) prevents latch-up during brownouts common in rural utility grids, extending product lifetime.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quasi-resonant AC-DC controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE5QR1680AZXUMA1	DIP-7 package, same 800 V/1.53 Ω specs but higher thermal resistance (R_thJA ≈ 65 K/W vs. 42 K/W for DSO-12).	Better suited for low-power, cost-sensitive designs with minimal airflow and no exposed-pad PCB layout.	Select when board space allows larger footprint and thermal management relies on ambient convection rather than copper area.
ICE5QR2280AGXUMA1	Same DSO-12 package, but 2.13 Ω R_DS(on) and 41 W output capability - higher conduction loss at light load.	Targeted at higher-output auxiliary supplies requiring tighter regulation under dynamic load steps (e.g., smart TV audio amplifiers).	Choose when system demands >45 W continuous output and can accept ~15% higher standby power due to higher R_DS(on).

Compared with ICE5QR1680AZXUMA1, the DSO-12 variant offers superior thermal performance and higher power density; versus ICE5QR2280AGXUMA1, it trades peak output for lower light-load losses and tighter standby compliance - ideal for mid-range displays prioritizing efficiency over maximum wattage.

Availability

ICE5QR1680AGXUMA1 is available at Aetrix Electronics and suitable for TV auxiliary power supplies, LCD/LED monitor PSUs, set-top box modules, and home appliance control power supplies requiring stable component supply and long-lifecycle support.

Supply support for ICE5QR1680AGXUMA1 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 leader specializing in power management, automotive MCUs, and security solutions, with global manufacturing and R&D infrastructure.

The ICE5QRxxxxAx CoolSET™ series targets high-efficiency, low-EMI auxiliary power conversion in consumer electronics, emphasizing integration, protection robustness, and regulatory compliance for off-line flyback topologies.

FAQ

What is the minimum recommended VCC capacitor value for stable startup?

A 22 µF/25 V low-ESR aluminum or tantalum capacitor is required on VCC to ensure reliable startup under worst-case line (85 VAC) and temperature (-25°C) conditions. This value sustains gate drive during the initial soft-start phase and absorbs ripple from the cascode charging current without dropping below 10 V.

How does the VIN pin implement brownout and OVP protection?

VIN senses rectified DC bus via an external resistor divider. Brownout triggers at ≈90 V (corresponding to ≈127 VAC input), while OVP activates at ≈300 V (≈424 VAC). Both functions use internal comparators with 250 µs blanking after power-on to prevent false triggering during transient surges.

Can the ZCD pin be used for output overvoltage protection without an optocoupler?

Yes - ZCD monitors reflected output voltage through an auxiliary winding. When output exceeds regulation, the ZCD voltage rises above threshold, forcing immediate shutdown with auto-restart. This provides secondary-side OVP redundancy independent of optocoupler health or feedback loop integrity.

What is the purpose of the two GND pins (pins 1 and 12) in the DSO-12 package?

Pin 1 serves as analog ground for sensitive circuits (FB, CS, ZCD), while Pin 12 is power ground for high-current paths (DRAIN, gate driver return). Separating these minimizes noise coupling into control loops and improves stability in high dv/dt environments typical of flyback converters.

ICE5QR1680AGXUMA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™

Package/Case:: 16-SOIC (0.154", 3.90mm Width), 12 Leads

Packaging:: Tape & Reel (TR)

Product Status:: Active

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 800V

Topology:: Flyback

Voltage - Start Up:: 16 V

Voltage - Supply (Vcc/Vdd):: 10V ~ 27V

Duty Cycle:: -

Frequency - Switching:: -

Power (Watts):: 50 W

Fault Protection:: Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage

Control Features:: -

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DSO-12-21

Mounting Type:: Surface Mount

ICE5QR1680AGXUMA1 FAQ

1.How can I place an order for ICE5QR1680AGXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE5QR1680AGXUMA1 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 ICE5QR1680AGXUMA1 reliable?

The price and inventory of ICE5QR1680AGXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5QR1680AGXUMA1 is usually 5 days.

3.What payment methods are accepted for ICE5QR1680AGXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5QR1680AGXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE5QR1680AGXUMA1?

ICE5QR1680AGXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE5QR1680AGXUMA1 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 ICE5QR1680AGXUMA1?

For technical support, including ICE5QR1680AGXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5QR1680AGXUMA1 requirements.

6.How does Aetrix verify that ICE5QR1680AGXUMA1 is sourced from the original manufacturer or authorized distributors?

All ICE5QR1680AGXUMA1 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 ICE5QR1680AGXUMA1 meets industry standards.

7.What is the process for return or replacement of ICE5QR1680AGXUMA1?

All ICE5QR1680AGXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5QR1680AGXUMA1, 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 ICE5QR1680AGXUMA1 part is unused and in its original packaging.

Return procedure for ICE5QR1680AGXUMA1:

1.Submit a request within 90 days.

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

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