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

Infineon Technologies ICE3B5565I

Name: ICE3B5565I
Brand: Infineon Technologies
SKU: ICE3B5565I
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B5565I

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: TO-220-6 Formed Leads

Datasheet:: ICE3B5565I.pdf

Description:: IC OFFLINE SWITCH FLYBACK TO220

Quantity:: RFQ Add To RFQ list

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Inventory:4,377

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Product details

Overview

ICE3B5565I from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion-mode CoolMOS™ power transistor and active burst mode, delivering 240W input power at 230VAC ±15% and 120W continuous output in open-frame design, used in high-efficiency flyback SMPS for industrial power supplies and LED drivers.

For engineers reviewing the ICE3B5565I datasheet, ICE3B5565I pinout, ICE3B5565I application, or ICE3B5565I equivalent, key selection criteria include its 67kHz fixed switching frequency, 0.79Ω R_DS(on) at 25°C, Auto Restart protection modes (overtemperature, overvoltage, overload), adjustable blanking window, and isolated drain package enabling reinforced insulation in compact designs.

Technical Context

The ICE3B5565I integrates a 650V avalanche-rugged CoolMOS™ transistor with precise peak current limiting (<±5% tolerance) and internal PWM leading edge blanking to suppress noise-induced false triggering during high di/dt events. Its control unit implements Active Burst Mode for <100mW standby power while maintaining immediate load-jump response without output blackout.

It features dual-stage protection: Auto Restart Mode triggers on VCC undervoltage, overtemperature, output open-loop, overload, and overvoltage conditions; the adjustable blanking window prevents unintended mode transitions during transient high-current events, enhancing reliability in wide-input-range 85–265VAC applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - Enables direct connection to universal AC mains (85–265VAC) with margin for surge and ringing.
f_SW	67kHz fixed - Balances EMI performance and transformer size; avoids audible noise and simplifies EMI filter design.
R_DS(on)	0.79Ω @ 25°C - Supports 240W max input power at 230VAC with low conduction loss and thermal stress.
Max Duty Cycle	72% - Allows sufficient on-time for high-voltage flyback operation while retaining off-time for reset and feedback stability.
Standby Power	<100mW - Achieved via Active Burst Mode controlled by FB signal, meeting stringent energy efficiency standards (e.g., ERP Tier 2).
Current Limit Tolerance	<±5% - Enables accurate transformer and secondary diode sizing for cost-optimized, repeatable production.
Package	PG-TO220-6-46 (I2Pak) - Isolated drain terminal provides reinforced creepage/clearance; TO-220 footprint supports high-power thermal management.

Pinout & Package

ICE3B5565I uses the PG-TO220-6-46 (I2Pak) package with isolated drain terminal, wide creepage distance (>8mm), and RoHS-compliant Pb-free plating. The drain tab is electrically isolated from other pins, enabling safe high-voltage primary-side mounting without additional insulation.

Pin/Terminal	Circuit Role	Design Meaning
1 (Drain)	CoolMOS™ Drain	High-voltage switching node connected to primary winding; isolated tab enables direct heatsink mounting with reinforced insulation.
3 (CS)	Current Sense Input	Connects to sense resistor; feeds precise peak current limit comparator with propagation delay compensation.
4 (GND)	Controller Ground	Analog ground reference for internal circuitry; separate from power ground path to minimize noise coupling.
5 (VCC)	Supply Voltage Input	Internal startup cell powers controller until auxiliary winding takes over; UVLO threshold at ~12.5V.
6 (SoftS)	Soft-Start Control	External capacitor sets ramp-up time for duty cycle, preventing inrush current and transformer saturation at startup.
7 (FB)	Feedback Input	Regulates output voltage via optocoupler; controls Active Burst Mode entry/exit and PWM duty cycle in normal operation.

Key Features

Feature	Design Value
Integrated 650V CoolMOS™ + Controller	Reduces BOM count by eliminating external MOSFET and gate driver; eliminates layout-sensitive gate drive loop.
Active Burst Mode	Delivers <100mW no-load power while maintaining real-time load-step response-no output dropout during light-to-heavy load transitions.
Adjustable Blanking Window	Configurable via external RC network to suppress false current-limit trips during high di/dt transients (e.g., output short recovery).
Auto Restart Protection Suite	Single-pin fault detection (FB/VCC/CS/GND paths) triggers safe restart after overtemperature, overvoltage, overload, open-loop, or VCC UVLO-no latch-up risk.
Precise Peak Current Limit	<±5% tolerance enables consistent transformer design across production lots, reducing safety margin overhead and cost.

Applications

Industrial AC/DC Power Supplies

LED Driver Power Stages

Use Scenario: 100–240W enclosed switch-mode power supply for PLC I/O modules and motor drives operating across global AC mains.

IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch in discontinuous conduction mode (DCM) flyback topology.

Use Value: Integrated 650V CoolMOS™ and Auto Restart Mode eliminate need for external overvoltage clamping and thermal shutdown ICs, reducing board area by >15%.

Use Scenario: Constant-voltage/constant-current LED driver for outdoor street lighting with wide ambient temperature range (-40°C to +85°C).

IC Role / Device Role / Timing Role: High-efficiency flyback controller with Active Burst Mode ensuring <100mW standby consumption during nighttime dimming cycles.

Use Value: 0.79Ω R_DS(on) and 67kHz switching enable >90% full-load efficiency at 230VAC, extending LED lifetime via lower thermal stress.

Medical Auxiliary Power Supplies

Appliance Main Power Conversion

Use Scenario: Isolated 24V/5A auxiliary supply for patient-monitoring equipment requiring reinforced insulation and low leakage current.

IC Role / Device Role / Timing Role: Primary-side controller with isolated drain package meeting IEC 60601-1 creepage requirements (>8mm) and reinforced insulation.

Use Value: PG-TO220-6-46's isolated drain allows direct heatsink mounting without insulating pads, simplifying mechanical design while maintaining safety certification.

Use Scenario: Main power conversion stage in smart home appliances (e.g., washing machines, HVAC controllers) with energy labeling compliance (ERP Tier 2).

IC Role / Device Role / Timing Role: Universal-input flyback controller supporting 85–265VAC with programmable soft-start and precise current limiting.

Use Value: Adjustable blanking window prevents nuisance tripping during compressor startup surges, improving field reliability without firmware intervention.

Equivalent & Alternatives

The following parts are listed as comparable options for similar off-line flyback controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3B5565P	Same electrical specs but PG-TO220-6-47 package with non-isolated drain; requires insulated heatsink mounting.	Suitable for cost-sensitive consumer designs where reinforced insulation is not mandated.	Select ICE3B5565P only when creepage distance >8mm and isolated drain are not required.
ICE3B3565I	Lower R_DS(on) (1.55Ω) and reduced power rating (170W input / 83W continuous); identical pinout and protection features.	Better suited for 60–100W applications where thermal headroom and cost optimization outweigh peak power needs.	Choose ICE3B3565I when full 240W capability is unnecessary and PCB space/thermal budget is constrained.

Compared with ICE3B5565P, the ICE3B5565I offers reinforced isolation for medical/industrial safety compliance; versus ICE3B3565I, it delivers 41% higher continuous power handling at identical thermal resistance, enabling single-design scalability across 100–240W platforms.

Availability

ICE3B5565I is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED driver power stages, and medical auxiliary power supplies requiring stable component supply, long lifecycle support, and traceable sourcing.

Supply support for ICE3B5565I 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 R&D and manufacturing infrastructure.

The CoolSET™-F3 product line targets high-efficiency, low-standby-power off-line SMPS designs, integrating CoolMOS™ technology and advanced protection logic to reduce system complexity and improve reliability in universal-input applications.

FAQ

What is the maximum continuous output power achievable with ICE3B5565I in a typical open-frame flyback design?

At 230VAC ±15% input and Ta=50°C with external heatsink (R_thCA=2.7K/W), ICE3B5565I supports up to 120W continuous output power. This value assumes standard DCM flyback operation, proper transformer design, and adequate PCB copper area for thermal dissipation-exceeding this requires derating or forced-air cooling.

How does the Active Burst Mode differ from conventional burst mode in terms of load-step response?

Unlike conventional burst mode that disables the controller between bursts, ICE3B5565I remains fully active during Active Burst Mode-enabling immediate PWM resumption upon load increase. This eliminates output voltage dropout and ensures ripple stays below 1%, critical for powering sensitive digital loads during light-to-heavy transitions.

Can the blanking window be adjusted externally, and what component sets its duration?

Yes-the blanking window duration is set by an external RC network connected between SoftS pin and GND. A typical 100pF capacitor with 100kΩ resistor yields ~100ns blanking; values must be selected per application transient profile using the formula t_blank ≈ 0.69 × R × C, as specified in Section 3.6.1 of the datasheet.

Is the PG-TO220-6-46 package's drain terminal truly isolated, and what is its minimum creepage distance?

Yes-the drain tab in PG-TO220-6-46 is electrically isolated from all other pins and the package body. Its minimum creepage distance is ≥8.0mm (per datasheet revision 2.3, page 28), satisfying reinforced insulation requirements for IEC 60601-1 and IEC 62368-1 in medical and industrial applications.

ICE3B5565I Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

Package/Case:: TO-220-6 Formed Leads

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 15 V

Voltage - Supply (Vcc/Vdd):: 8.5V ~ 21V

Duty Cycle:: 72%

Frequency - Switching:: 67kHz

Power (Watts):: 240 W

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

Control Features:: Soft Start

Operating Temperature:: -25°C ~ 130°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-TO220-6-46

Mounting Type:: Through Hole

ICE3B5565I FAQ

1.How can I place an order for ICE3B5565I through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B5565I 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 ICE3B5565I reliable?

The price and inventory of ICE3B5565I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B5565I is usually 5 days.

3.What payment methods are accepted for ICE3B5565I?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B5565I transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B5565I?

ICE3B5565I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B5565I 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 ICE3B5565I?

For technical support, including ICE3B5565I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B5565I requirements.

6.How does Aetrix verify that ICE3B5565I is sourced from the original manufacturer or authorized distributors?

All ICE3B5565I 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 ICE3B5565I meets industry standards.

7.What is the process for return or replacement of ICE3B5565I?

All ICE3B5565I units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B5565I, 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 ICE3B5565I part is unused and in its original packaging.

Return procedure for ICE3B5565I:

1.Submit a request within 90 days.

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

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