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

Infineon Technologies ICE3AR4780JGXUMA1

Name: ICE3AR4780JGXUMA1
Brand: Infineon Technologies
SKU: ICE3AR4780JGXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3AR4780JGXUMA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3AR4780JGXUMA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 12DSO

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3AR4780JGXUMA1 from Infineon is an integrated 800 V CoolMOS™ PWM controller in PG-DSO-12 package, combining avalanche-rugged high-voltage MOSFET with active burst-mode control, 100 kHz fixed-frequency jittering oscillator, and adjustable brownout protection. It delivers 29 W max input power at 230 VAC ±15%, supports <100 mW standby power, and targets off-line SMPS in adapters, Blu-ray players, set-top boxes, and auxiliary supplies for white goods and servers.

For engineers reviewing the ICE3AR4780JGXUMA1 datasheet, ICE3AR4780JGXUMA1 pinout, ICE3AR4780JGXUMA1 application, or ICE3AR4780JGXUMA1 equivalent, key selection criteria include its 800 V drain rating, ±5% current limit tolerance, 10 ms soft-start, 20 ms extendable blanking time, and BBA/FBB dual-function pins enabling brownout, burst-level selection, and external auto-restart control.

Technical Context

This IC implements current-mode PWM control with propagation-delay compensation for consistent peak-power limiting across line voltages and load conditions. Its patented Active Burst Mode uses FBB pin voltage thresholds to select entry/exit power levels, reducing output ripple by narrowing feedback swing to 0.3 V during burst operation.

The control architecture integrates a startup cell, BiCMOS biasing for 10.5–25 V VCC operation, and multi-layer protection: thermal shutdown (130°C trip, 50°C hysteresis), VCC OVP/UVP, open-loop detection, and external auto-restart enable via BBA pin (<0.4 V trigger). Frequency jittering and soft gate drive (50 Ω turn-on resistor) suppress EMI without external filters.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	800 V - Enables direct connection to 270 VAC mains without external snubber derating
f_SW	100 kHz fixed with jitter - Reduces EMI peaks by spreading spectral energy across ±2 kHz band
R_DS(on)	4.70 Ω @ T_j = 25°C - Limits conduction loss in low-power SMPS up to 29 W input
I_lim tolerance	±5% - Ensures accurate overcurrent protection across temperature and process variation
Standby power	<100 mW - Achieved via Active Burst Mode with selectable entry threshold and 0.3 V FBB swing
Blanking time	20 ms built-in + extendable - Prevents false OCP triggering during transient load jumps
Brownout hysteresis	Adjustable via RBO1/RBO2 - Allows precise AC input undervoltage lockout without external comparator

Pinout & Package

Package: PG-DSO-12 (12-pin exposed-pad SOIC variant with enhanced thermal performance; pin 1 marked by notch).

Pin/Terminal	Circuit Role	Design Meaning
1 (BBA)	Brownout / Blanking Extension / Auto-Restart Enable	Single pin configures AC undervoltage cutoff, extends blanking time with external capacitor, and forces auto-restart when pulled <0.4 V
2 (FBB)	Feedback Input / Burst Entry Control	Regulates output voltage and selects burst mode activation threshold; determines duty cycle in light-load burst operation
4 (CS)	Current Sense Input	Monitors shunt voltage on CoolMOS™ source to trigger cycle-by-cycle current limiting and PWM comparator
5–8 (Drain)	High-Voltage Drain Connection	Internally bonded to CoolMOS™ drain; carries full switching current and withstands 800 V avalanche stress
11 (VCC)	Controller Supply Input	Accepts 10.5–25 V DC; powers internal BiCMOS circuitry and gate driver; enables wide-range auxiliary supply design
12 (GND)	Power Ground Reference	Common return for CS sensing, gate drive, and internal bias; requires low-inductance layout to avoid false OCP

Key Features

Feature	Design Value
Active Burst Mode	Reduces standby power to <100 mW while maintaining regulation via FBB-controlled entry/exit thresholds
Propagation Delay Compensation	Corrects timing mismatch between CS signal and PWM latch to ensure identical current limit at high/low line
Soft Gate Drive	Integrated 50 Ω turn-on resistor slows dV/dt to lower EMI without external gate resistor
Adjustable Brownout	Configurable AC undervoltage lockout using RBO1/RBO2 resistors-no external supervisor IC required
Extendable Blanking Time	20 ms base blanking extended via capacitor on BBA pin to handle short-duration peak loads without shutdown

Applications

Adapter/Charger

Blu-ray/DVD Player

Use Scenario: 12 V/2 A universal AC-DC adapter for portable electronics with no-load efficiency >75%.

IC Role / Device Role / Timing Role: Primary-side PWM controller with integrated 800 V switch and burst-mode regulation.

Use Value: Eliminates need for secondary-side feedback optocoupler and TL431, reducing BOM count by 3 components.

Use Scenario: Standby power supply in Blu-ray disc player requiring <100 mW consumption in sleep mode.

IC Role / Device Role / Timing Role: Off-line flyback controller operating in Active Burst Mode with selectable exit threshold.

Use Value: Achieves Energy Star 6.0 compliance via 0.3 V FBB swing during burst, cutting output ripple by 40%.

Set-Top Box

Auxiliary Power Supply

Use Scenario: 5 V/1 A auxiliary rail powering microcontroller and IR receiver in digital cable box.

IC Role / Device Role / Timing Role: High-voltage primary-side controller with brownout protection for unstable grid conditions.

Use Value: Adjustable RBO1/RBO2 network prevents unexpected shutdown during brief AC sags below 180 VAC.

Use Scenario: 19 V/0.8 A standby supply for server motherboard management controller (BMC).

IC Role / Device Role / Timing Role: Integrated CoolMOS™ controller delivering 29 W input power with 800 V margin for surge immunity.

Use Value: Withstands 4 kV line-to-ground surges per IEC 61000-4-5 without external clamping diodes.

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage PWM controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3BR4765JGXUMA1	650 V CoolMOS™, same PG-DSO-12 package, 100 kHz, but lacks adjustable brownout and burst-level selection	Suitable only for stable 230 VAC regions; cannot support brownout-critical white goods or industrial aux supplies	Select when 650 V rating suffices and cost sensitivity outweighs brownout flexibility
LD7575PS	650 V MOSFET, 65 kHz fixed frequency, no Active Burst Mode, no propagation delay compensation	Higher standby power (>250 mW); no blanking extension; limited peak power handling under transient loads	Choose only for legacy designs where 65 kHz EMI profile is mandated and 800 V margin is unnecessary

Compared with ICE3BR4765JGXUMA1 and LD7575PS, ICE3AR4780JGXUMA1 provides superior voltage margin, lower standby consumption, and configurable protection-making it optimal for global-input, low-power SMPS needing robustness against brownout and surge events.

Availability

ICE3AR4780JGXUMA1 is available at Aetrix Electronics and suitable for adapter/charger, Blu-ray/DVD player, set-top box, and auxiliary power supply applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3AR4780JGXUMA1 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 high-voltage silicon and GaN solutions.

The CoolSET™ F3R80 product line delivers fully integrated 800 V SMPS controllers targeting low-power off-line applications where reliability under brownout, surge, and standby constraints is critical-especially in consumer and computing auxiliary supplies.

FAQ

What is the purpose of the BBA pin on ICE3AR4780JGXUMA1?

The BBA pin integrates three functions: brownout detection (via RBO1/RBO2 resistors), extendable blanking time (using external capacitor to ground), and external auto-restart enable (triggered by pulling voltage below 0.4 V). This eliminates need for discrete comparators or timers in auxiliary power designs.

How does Active Burst Mode reduce standby power below 100 mW?

Active Burst Mode uses the FBB pin to dynamically adjust burst entry/exit thresholds and narrows feedback voltage swing to 0.3 V during burst cycles-reducing output ripple by 40% and minimizing transformer core loss and rectifier conduction loss at light load.

Can ICE3AR4780JGXUMA1 replace ICE3BR4765JGXUMA1 without board changes?

No-while both use PG-DSO-12 packaging and share pinout, ICE3AR4780JGXUMA1's higher 800 V drain rating requires verifying PCB creepage/clearance and snubber component ratings. Also, brownout resistors (RBO1/RBO2) must be added if not present on legacy boards.

What is the significance of ±5% current limit tolerance?

This tight tolerance ensures consistent overcurrent protection across temperature (-40°C to 125°C) and manufacturing variation, allowing reliable peak-power delivery up to 29 W at 230 VAC without derating or external current-sense amplification.

ICE3AR4780JGXUMA1 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:: 17 V

Voltage - Supply (Vcc/Vdd):: 10.5V ~ 25V

Duty Cycle:: 75%

Frequency - Switching:: 100kHz

Power (Watts):: 29 W

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

Control Features:: -

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DSO-12-19

Mounting Type:: Surface Mount

ICE3AR4780JGXUMA1 FAQ

1.How can I place an order for ICE3AR4780JGXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3AR4780JGXUMA1 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 ICE3AR4780JGXUMA1 reliable?

The price and inventory of ICE3AR4780JGXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3AR4780JGXUMA1 is usually 5 days.

3.What payment methods are accepted for ICE3AR4780JGXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3AR4780JGXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3AR4780JGXUMA1?

ICE3AR4780JGXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3AR4780JGXUMA1 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 ICE3AR4780JGXUMA1?

For technical support, including ICE3AR4780JGXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3AR4780JGXUMA1 requirements.

6.How does Aetrix verify that ICE3AR4780JGXUMA1 is sourced from the original manufacturer or authorized distributors?

All ICE3AR4780JGXUMA1 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 ICE3AR4780JGXUMA1 meets industry standards.

7.What is the process for return or replacement of ICE3AR4780JGXUMA1?

All ICE3AR4780JGXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3AR4780JGXUMA1, 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 ICE3AR4780JGXUMA1 part is unused and in its original packaging.

Return procedure for ICE3AR4780JGXUMA1:

1.Submit a request within 90 days.

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

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