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

Infineon Technologies ICE5AR4770AGXUMA1

Name: ICE5AR4770AGXUMA1
Brand: Infineon Technologies
SKU: ICE5AR4770AGXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE5AR4770AGXUMA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE5AR4770AGXUMA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 12DSO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE5AR4770AGXUMA1 from Infineon is a fixed-frequency 700 V integrated power IC (CoolSET™) combining a PWM controller and avalanche-rugged CoolMOS™ in a single DSO-12 package. It delivers 27 W at 220 V AC ±20% in DCM, supports active burst mode with <100 mW standby power, and operates at 100 kHz with 4.73 Ω R_DS(on), targeting non-isolated/isolated flyback converters for auxiliary power supplies.

For engineers reviewing the ICE5AR4770AGXUMA1 datasheet, ICE5AR4770AGXUMA1 pinout, ICE5AR4770AGXUMA1 application, or ICE5AR4770AGXUMA1 equivalent, key selection criteria include its cascode-based fast startup, selectable ABM entry/exit thresholds, integrated error amplifier for direct feedback, digital frequency reduction for light-load efficiency, and comprehensive auto-restart protections including line overvoltage and VCC short-to-GND.

Technical Context

This CoolSET™ integrates a current-mode PWM controller with a 700 V CoolMOS™ power transistor in cascode configuration, enabling rapid VCC pre-charging and sub-100 mW standby via enhanced Active Burst Mode. Its digital control core implements slope-compensated peak-current-mode operation across DCM and CCM, with built-in soft-start and propagation-delay-compensated cycle-by-cycle current limiting.

EMI is reduced through frequency jittering and soft gate driving; protection functions-including line overvoltage (LOVP), VCC OVP/UVP, overload/open-loop, overtemperature, and VCC short-to-GND-are all implemented in auto-restart mode. The integrated transconductance error amplifier supports direct feedback in non-isolated flyback topologies without optocoupler.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	700 V - Enables direct connection to 300 VAC rectified bus without external snubber stress.
f_SW	100 kHz - Fixed switching frequency optimized for EMI filtering and transformer size trade-off.
R_DS(on)	4.73 Ω - Determines conduction loss and thermal rise in primary-side MOSFET under load.
V_VCC operating range	10.0–25.5 V - Supports wide-range auxiliary supply design with margin for ripple and dropout.
Standby power	<100 mW - Achieved via selectable ABM entry/exit and digital frequency reduction at light loads.
Protection modes	All auto-restart - Ensures fault recovery without manual reset or system latch-up.
Error amplifier	Integrated transconductance type - Enables direct feedback in non-isolated flyback, eliminating optocoupler and TL431.

Pinout & Package

ICE5AR4770AGXUMA1 is housed in a PG-DSO-12 (12-pin, exposed pad) thermally enhanced surface-mount package with integrated high-voltage drain terminals.

Pin/Terminal	Circuit Role	Design Meaning
1 VIN	Line Over Voltage Protection input	Senses rectified AC bus via resistor divider; stops switching if threshold exceeded; tie to GND to disable.
2 VERR	Error amplifier output	Connects to secondary-side feedback in non-isolated flyback; tie to GND for isolated configurations.
3 FB	Feedback / ABM control	Combines regulation signal, burst mode entry/exit trigger, and overload detection.
4 CS	Current sense input	Receives shunt voltage for peak-current-mode PWM shutdown and cycle-by-cycle limiting.
5–8 DRAIN	High-voltage drain terminals	Four paralleled pins connect to CoolMOS™ drain; reduce parasitic inductance and improve thermal spreading.
9 NC	No connection	Internally unconnected; must remain floating or grounded per layout guidelines.
10 GATE	Gate driver output	Drives CoolMOS™ gate; includes internal pull-up to bus for VCC pre-charge during startup.
11 VCC	IC supply voltage	Power rail for controller logic and gate driver; regulated between 10.0 V and 25.5 V.
12 GND	Controller ground reference	Common return for analog and digital blocks; requires low-impedance PCB connection to exposed pad.

Key Features

Feature	Design Value
Cascode startup architecture	Enables VCC capacitor charging directly from rectified AC bus, reducing startup time by >50% vs conventional bias windings.
Digital frequency reduction	Automatically lowers f_SW below 50% load to cut switching losses while maintaining regulation accuracy.
Selectably configured ABM	Allows independent setting of burst entry and exit power thresholds, minimizing output voltage ripple during transitions.
Integrated error amplifier	Eliminates need for external TL431 + optocoupler in non-isolated flyback, reducing BOM count and board area by ≥3 components.
Auto-restart protections	Prevents latch-up during transient faults (e.g., VCC short, overtemperature), enabling safe recovery without system intervention.

Applications

Home Appliance Auxiliary Supply

TV Standby Power

Use Scenario: Provides 5 V/100 mA auxiliary rail for microcontroller, display backlight, and IR receiver in washing machines and refrigerators.

IC Role / Device Role / Timing Role: Fixed-frequency flyback controller with integrated 700 V CoolMOS™ manages primary-side regulation and safety isolation.

Use Value: Sub-100 mW standby power meets EU ErP Lot 6 requirements; cascode startup ensures reliable cold-start after power interruption.

Use Scenario: Powers main SoC and memory retention circuits during TV standby mode (CEC-active state).

IC Role / Device Role / Timing Role: Primary-side PWM controller with selectable ABM governs energy delivery only when triggered by remote wake signal.

Use Value: Selectable ABM entry/exit thresholds suppress audible transformer whine and limit output ripple to <±15 mV during burst transitions.

PC/Server Fan Control Supply

LCD Monitor Backlight Driver

Use Scenario: Generates isolated 12 V rail for brushless DC fan controllers in desktop PCs and rack servers.

IC Role / Device Role / Timing Role: Isolated flyback controller using optocoupler feedback and integrated protections for robust operation in thermally stressed environments.

Use Value: Auto-restart overtemperature and VCC OVP prevent fan failure-induced thermal runaway in confined chassis spaces.

Use Scenario: Supplies 24 V/1 A for LED backlight strings in 24-inch LCD monitors with dynamic dimming.

IC Role / Device Role / Timing Role: Non-isolated flyback controller leveraging integrated error amplifier for direct secondary-side sensing and fast transient response.

Use Value: Integrated transconductance amplifier reduces feedback loop delay by ~200 ns vs discrete TL431, improving dimming step accuracy.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-frequency flyback controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE5AR0680AGXUMA1	800 V V_DS, 0.71 Ω R_DS(on), 100 kHz, 68 W max output	Higher power capability; requires larger heatsinking and higher-current magnetics	Choose when >27 W output or universal 85–300 VAC input with surge tolerance is required.
ICE5GR4780AGXUMA1	800 V V_DS, 4.13 Ω R_DS(on), 125 kHz, same 27 W DCM rating	Higher f_SW enables smaller transformers but increases switching loss above 50% load	Prefer for compact designs where EMI filtering bandwidth allows 125 kHz operation.

Compared with ICE5AR4770AGXUMA1, ICE5AR0680AGXUMA1 trades lower R_DS(on) and higher voltage rating for increased thermal demand, while ICE5GR4780AGXUMA1 offers higher frequency at identical power-making the original optimal for cost-sensitive, thermally constrained 27 W auxiliary supplies.

Availability

ICE5AR4770AGXUMA1 is available at Aetrix Electronics and suitable for home appliance auxiliary supplies, TV standby power, and PC/server fan control requiring stable component supply across industrial temperature ranges and long-lifecycle production programs.

Supply support for ICE5AR4770AGXUMA1 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 AG is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with global manufacturing and quality certification to IATF 16949 and ISO 9001.

The CoolSET™ product line delivers integrated fixed-frequency flyback controllers with embedded high-voltage MOSFETs, engineered specifically for cost-optimized, space-constrained auxiliary power supplies in consumer and industrial equipment.

FAQ

What is the purpose of the VIN pin on ICE5AR4770AGXUMA1?

The VIN pin provides input line overvoltage protection (LOVP) by monitoring the rectified AC bus via an external resistor divider. When the sensed voltage exceeds the internal threshold, the IC halts switching to prevent damage. Connecting VIN to GND disables this function entirely, which is acceptable in designs with external overvoltage clamping.

Can ICE5AR4770AGXUMA1 operate in both isolated and non-isolated flyback topologies?

Yes. In non-isolated flyback, the VERR pin connects to feedback and the FB pin handles regulation; in isolated configurations, VERR is tied to GND and feedback is applied via optocoupler to the FB pin. The datasheet provides distinct reference schematics for both modes with appropriate component values.

How does the Active Burst Mode (ABM) achieve <100 mW standby power?

ABM achieves ultra-low standby by dynamically pausing switching cycles based on load demand, with digitally controlled frequency reduction and soft gate driving. Entry and exit thresholds are independently set via external resistors on the FB pin, allowing precise control of output ripple and transition noise without sacrificing regulation accuracy.

What thermal considerations apply to the DSO-12 package of ICE5AR4770AGXUMA1?

The PG-DSO-12 package features an exposed thermal pad that must be soldered to a minimum 200 mm² copper pour on the PCB's inner layer for effective heat dissipation. Thermal resistance from junction to ambient is 45 °C/W in a standard 2 oz copper single-sided layout; derating is required above 50 °C ambient to maintain T_J ≤ 125 °C.

ICE5AR4770AGXUMA1 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:: Non-Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 700V

Topology:: Flyback

Voltage - Start Up:: -

Voltage - Supply (Vcc/Vdd):: 10V ~ 25.5V

Duty Cycle:: 75%

Frequency - Switching:: 100kHz

Power (Watts):: 15 W

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

Control Features:: EN, Soft Start, Sync

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

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

Mounting Type:: Surface Mount

ICE5AR4770AGXUMA1 FAQ

1.How can I place an order for ICE5AR4770AGXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE5AR4770AGXUMA1 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 ICE5AR4770AGXUMA1 reliable?

The price and inventory of ICE5AR4770AGXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5AR4770AGXUMA1 is usually 5 days.

3.What payment methods are accepted for ICE5AR4770AGXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5AR4770AGXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE5AR4770AGXUMA1?

ICE5AR4770AGXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE5AR4770AGXUMA1 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 ICE5AR4770AGXUMA1?

For technical support, including ICE5AR4770AGXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5AR4770AGXUMA1 requirements.

6.How does Aetrix verify that ICE5AR4770AGXUMA1 is sourced from the original manufacturer or authorized distributors?

All ICE5AR4770AGXUMA1 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 ICE5AR4770AGXUMA1 meets industry standards.

7.What is the process for return or replacement of ICE5AR4770AGXUMA1?

All ICE5AR4770AGXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5AR4770AGXUMA1, 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 ICE5AR4770AGXUMA1 part is unused and in its original packaging.

Return procedure for ICE5AR4770AGXUMA1:

1.Submit a request within 90 days.

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

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