ICE2QR2280GXUMA1 - 800V QR Flyback PWM Controller | Infineon
MPN: ICE2QR2280GXUMA1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.82 | $1.82 |
| 10 | $1.64 | $16.40 |
| 100 | $1.45 | $145.00 |
| 500 | $1.28 | $640.00 |
| 1,000 | $1.15 | $1,150.00 |
ICE2QR2280GXUMA1 Overview
A quasi-resonant flyback controller is a type of AC-DC switched-mode power supply (SMPS) controller that switches the primary MOSFET near the drain-voltage valley, minimizing turn-on switching losses and EMI. It belongs to the broader class of offline PWM controllers within the power management IC hierarchy, used to convert rectified AC mains into isolated DC voltages for appliances, adapters, and industrial auxiliary supplies.
Key features include a 800 V breakdown voltage on the integrated MOSFET, a 10.5 V to 27 V Vcc supply range with 18 V startup threshold, 50% maximum duty cycle, integrated current-mode control, and Active Burst Mode for sub-100 mW standby. The PG-DSO-12-10 package provides a thermally enhanced exposed-pad footprint suitable for 20 W-class auxiliary power designs without external heatsinking.
The device uses Infineon's CoolMOS technology with an avalanche-rugged 800V cell, allowing direct rectification of universal AC mains (85-265 VAC) without additional input protection. The quasi-resonant valley-skipping controller adaptively shifts switching frequency based on load, optimizing efficiency across light and full-load conditions.
Typical applications include low-power SMPS adapters, white goods auxiliary supplies, standby rails in white goods and TVs, smart meter and IoT device power, and industrial control auxiliary supplies. The 20 W power level makes the part well-suited for always-on appliances requiring ENERGY STAR standby compliance.
When designing, ensure transformer leakage inductance is below 5% to prevent MOSFET avalanche overstress, and follow the reference snubber circuit from the manufacturer datasheet. The Vcc capacitor must be sized to sustain 18 V startup and 10.5 V UVLO thresholds under all load transients.
This page synthesizes distributor pricing, drop-in same-package alternatives from the CoolSET-Q1 family, and practical design notes not collected in any single place on the manufacturer datasheet.
Drop-in alternatives for ICE2QR2280GXUMA1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ICE2QR2280GXUMA1 (same form factor and footprint) β differing in Package, Topology, Internal Switch.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
ICE2QR2280G-1
β Drop-Inπ Reference alternative (not in catalog)
ICE3PCS03GXUMA1
β Drop-Inβ In Stock
$1.45 / Unit
View Datasheet βICE2QR2280GXUMA1 Maximum Ratings & Electrical Characteristics
| Topology | Flyback, quasi-resonant |
| Switching Frequency (typ.) | 52 kHz |
| Maximum Duty Cycle | 50% |
| Integrated MOSFET Breakdown Voltage | 800 V |
| Integrated MOSFET RDS(on) (max) | 2.62 ohm |
| Maximum Output Power | 20 W |
| Vcc Supply Range | 10.5 V to 27 V |
| Vcc Startup Voltage | 18 V |
| Supply Current (typ.) | 1.5 mA |
| Standby Power (Active Burst Mode) | < 100 mW at no load |
| Output Isolation | Isolated |
| Internal Switch | Yes |
| Operating Temperature Range | -25 C to +125 C |
| Package | PG-DSO-12-10 |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
ICE2QR2280GXUMA1 Pin Configuration
| Pin 1 | VCC β Supply voltage for the control circuit |
| Pin 2 | CS β Current sense input |
| Pin 3 | FB β Feedback input for regulation |
| Pin 4 | GND β Ground |
| Pin 5 | DRAIN β Drain of integrated 800V CoolMOS |
| Pin 6 | DRAIN β Drain of integrated 800V CoolMOS |
| Pin 7 | DRAIN β Drain of integrated 800V CoolMOS |
| Pin 8 | DRAIN β Drain of integrated 800V CoolMOS |
| Pin 9 | NC β Not connected |
| Pin 10 | NC β Not connected |
| Pin 11 | GND β Ground (substrate) |
| Pin 12 | GND β Ground (substrate) |
Typical Applications
ICE2QR2280GXUMA1 is suitable for 6 applications: 5V/4A Wall Adapter (20 W), White Goods Auxiliary Supply, Smart Meter / IoT Auxiliary Power, TV / Monitor Standby Supply, Industrial Control Auxiliary Supply, LED Lighting Driver Auxiliary.
5V/4A Wall Adapter (20 W)
The ICE2QR2280GXUMA1's 800V CoolMOS, 52 kHz quasi-resonant switching, and sub-100 mW standby power make it ideal for 20 W universal-mains adapters such as 5V/4A USB chargers and 12V/1.5A appliance adapters. The integrated 800V switcher eliminates the need for an external MOSFET, while Active Burst Mode reduces standby consumption below 100 mW to meet ENERGY STAR and EU ecodesign limits. Placed on the primary side of a flyback transformer, it supports 85-265 VAC universal input with single-rectifier front-end and isolated 5V/4A or 12V/1.5A output, with primary-side regulation or TL431-based secondary feedback.
Recommended
White Goods Auxiliary Supply
The ICE2QR2280GXUMA1 suits standby and control-rail supplies in washing machines, refrigerators, and dishwashers where 5-20 W isolated rails power microcontrollers, displays, and relays. The 800V breakdown withstands surges on rectified mains without external protection, and the PG-DSO-12-10 package fits inside the tight control-box enclosures typical of white goods. Active Burst Mode keeps standby consumption below 100 mW so the appliance can meet EU 2019/2021 standby regulations. The integrated startup cell removes the need for an external startup resistor, reducing standby losses further.
Recommended
Smart Meter / IoT Auxiliary Power
The ICE2QR2280GXUMA1 provides the isolated low-power rail in smart electricity meters, gas meters, and IoT edge devices operating from 85-265 VAC mains. The quasi-resonant topology minimizes EMI, helping these products meet EN 55022 / CISPR 32 conducted-emission limits without bulky filtering. The 800V CoolMOS avalanche ruggedness handles long-duration overvoltage events on poor-quality grids, while sub-100 mW standby supports battery-backed metering applications where continuous consumption matters. Combined with a 5V LDO downstream, it powers metering MCUs and wireless radios reliably.
Recommended
TV / Monitor Standby Supply
The ICE2QR2280GXUMA1 powers the always-on standby rail in LED TVs and computer monitors, where 5-20 W must be available even when the main display is off so the unit can respond to remote-control or network wake commands. The 800V integrated switch and Active Burst Mode achieve standby power well under 100 mW, satisfying ENERGY STAR 8.0 and EU 2019/2021 standby limits. The quasi-resonant switching reduces transformer audible noise, important for consumer electronics in living-room environments. The PG-DSO-12-10 package enables compact power-supply modules behind the panel.
Recommended
Industrial Control Auxiliary Supply
The ICE2QR2280GXUMA1 supplies isolated 5V/12V/24V rails in PLCs, sensor hubs, and industrial controllers where reliable operation across 85-265 VAC mains is mandatory. The 800V CoolMOS handles industrial mains transients including 6 kV surge events when paired with an appropriate MOV and input filter. Active Burst Mode keeps standby below 100 mW, important for always-on industrial equipment seeking energy certifications. The PG-DSO-12-10 package's exposed pad provides adequate thermal dissipation at 20 W continuous output without external heatsinking.
Recommended
LED Lighting Driver Auxiliary
The ICE2QR2280GXUMA1 provides the standby and control-rail supply in LED lighting fixtures that include wireless control, occupancy sensors, or color-tuning interfaces. The integrated 800V switch and Active Burst Mode enable standby power below 100 mW for fixtures seeking ENERGY STAR or DLC certification. The quasi-resonant operation reduces EMI in the LED driver environment, simplifying the overall EMI filter design. The compact PG-DSO-12-10 package fits inside space-constrained driver housings used in downlights and troffers.
Recommended
Recommended Products Summary
Engineering reference data for ICE2QR2280GXUMA1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ICE2QR2280G-1 | ICE3PCS03GXUMA1 |
|---|---|---|---|
| Brand | Infineon | Infineon | Infineon |
| Package | PG-DSO-12-10 | PG-DSO-12-10 (same) | PG-DSO-12-10 (same) |
| Topology | Quasi-Resonant Flyback | Quasi-Resonant Flyback (same) | PFC Controller |
| Maximum Output Power | 20 W | 20 W | PFC stage (no direct flyback) |
| Standby Power | < 100 mW (Active Burst Mode) | < 100 mW (Active Burst Mode) | PFC topology, different metric |
Key Differentiators
- Integrated 800V avalanche-rugged CoolMOS in same package (vs ICE2QR2280G-1)
- Quasi-resonant valley-skipping for high efficiency at low load (vs ICE3PCS03GXUMA1)
Design Notes
At 20 W continuous output in an enclosed adapter, the PG-DSO-12-10 exposed pad must be soldered to at least 100 mm^2 of copper on both top and bottom PCB layers for adequate heat spreading. The integrated 800V CoolMOS dissipates roughly 0.5-1 W at full load in a typical 5V/4A flyback design; without the exposed-pad copper pour, junction temperature can exceed 125 C and trigger thermal shutdown. Estimated: P_loss = I_primary^2 x R_DS(on) at 20 W output ~ 0.6 W; theta_JA with 100 mm^2 copper pour ~ 60 C/W; temperature rise ~ 36 C above 85 C ambient.
Keep the CS (current sense) trace short and away from the drain-node switching loops to prevent noise coupling that causes premature cycle-by-cycle current-limit triggering. Place the Vcc bypass capacitor (typically 22 uF) directly at pin 1 with the ground return to pin 4 within 5 mm. The drain copper pour should not extend under the CS or FB traces; use a ground shield if routing constraints force proximity. The exposed pad must be a single contiguous copper region with at least 4 thermal vias to the inner/bottom layers.
Transformer leakage inductance above 5% of primary inductance can avalanche-stress the integrated 800V CoolMOS during turn-off; follow the Infineon reference design's snubber (typically a 470 V TVS or RCD clamp) and use a sandwich winding construction to minimize leakage. The Vcc auxiliary winding must deliver at least 11 V at minimum line and full load to keep the controller above the 10.5 V UVLO threshold during load transients. Do not connect the CS pin directly to the MOSFET source without the external current-sense resistor; the internal MOSFET source is pin 11/12, not the CS pin.
Compliance Information
RoHS compliant per Infineon product page. Not AEC-Q100 qualified - this is a commercial/industrial-grade controller.
