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

Infineon Technologies ICE3B5565PBKSA1

Name: ICE3B5565PBKSA1
Brand: Infineon Technologies
SKU: ICE3B5565PBKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B5565PBKSA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: TO-220-6 Formed Leads

Datasheet:: ICE3B5565PBKSA1.pdf

Description:: IC OFFLINE SW FLYBACK TO220-6

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3B5565PBKSA1 from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion CoolMOS™ power switch, housed in PG-TO220-6-47 package. It delivers up to 240W input power at 230VAC ±15%, operates at fixed 67kHz switching frequency, features active burst mode for <100mW standby power, and includes auto-restart protection for overtemperature, overvoltage, overload, and VCC undervoltage - used in high-efficiency open-frame SMPS for industrial power supplies.

For engineers reviewing the ICE3B5565PBKSA1 datasheet, ICE3B5565PBKSA1 pinout, ICE3B5565PBKSA1 application, or ICE3B5565PBKSA1 equivalent, key selection criteria include its integrated 650V CoolMOS™ R_DS(on) of 0.79Ω (typ), 72% max duty cycle, ±5% peak current limit tolerance, adjustable blanking window, and isolated drain package enabling reinforced creepage for safety-critical 85–265VAC inputs.

Technical Context

The ICE3B5565PBKSA1 integrates a current-mode PWM controller and a 650V avalanche-rugged depletion CoolMOS™ transistor in a single TO-220 package with isolated drain. Its control architecture includes internal oscillator (67kHz), leading-edge blanking, propagation delay compensation, and precise peak current sensing with <±5% tolerance.

It implements Active Burst Mode triggered by feedback voltage level, enabling immediate load-jump response without output blackout, while maintaining <1% output voltage ripple. Protection logic executes auto-restart on VCC undervoltage, overtemperature, output open-loop, and overvoltage conditions - all monitored internally without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
Switching Frequency	Fixed 67 kHz - enables predictable EMI filtering and transformer design with stable timing.
Max Input Power (230VAC)	240 W - supports high-power open-frame SMPS designs without external heatsink under defined thermal conditions.
R_DS(on) (typ @ 25°C)	0.79 Ω - reduces conduction losses and thermal stress in primary-side switching at full load.
Peak Current Limit Tolerance	±5% - ensures consistent transformer sizing and secondary diode selection across production lots.
Standby Power	<100 mW at no load - meets stringent global energy efficiency standards (e.g., EU CoC Tier 2, DOE Level VI).
Max Duty Cycle	72% - provides sufficient on-time margin for wide-input-voltage operation including brownout conditions.
Startup Cell Voltage Rating	650 V - enables direct connection to rectified AC line without external startup resistor network.

Pinout & Package

ICE3B5565PBKSA1 uses the PG-TO220-6-47 package - a 6-pin through-hole power package with isolated drain tab (pin 1), enabling reinforced creepage distance and simplified PCB layout for Class II isolation. The drain pin is electrically isolated from other terminals, supporting safe high-voltage primary-side integration.

Pin/Terminal	Circuit Role	Design Meaning
1 Drain	650V CoolMOS™ Drain	High-side switching node connected to bulk capacitor; isolated tab allows direct heatsinking without insulation barrier.
3 CS	Current Sense Input	Connects to source resistor for precise peak current limiting; internal blanking window prevents false triggering during switching spikes.
4 GND	Controller Ground Reference	Low-noise analog/digital ground return for internal circuitry; separate from power ground path to minimize noise coupling.
5 VCC	Controller Supply Voltage	Internally regulated supply (15.6V typ) powered via startup cell; enters undervoltage lockout below 10.5V.
6 SoftS	Soft-Start Control	External capacitor sets ramp time for controlled VCC rise and gradual PWM enable, reducing inrush current.
7 FB	Feedback Input	Optocoupler-connected error amplifier input; controls burst mode entry/exit and regulates output voltage precision.

Key Features

Feature	Design Value
Integrated 650V Depletion CoolMOS™	Eliminates external HV startup resistor and gate driver, reducing BOM count and board space in flyback converters.
Active Burst Mode	Delivers immediate load-step response with <1% output ripple at light load - avoids audible noise and blackouts common in traditional burst modes.
Adjustable Blanking Window	Configurable via external RC network to suppress false current-limit trips during transient load surges, improving system reliability.
Auto-Restart Protection Suite	Covers overtemperature, VCC overvoltage, output open-loop, overload, and VCC undervoltage - each triggers safe restart without latch-off.
Precision Peak Current Limit	±5% tolerance enables consistent transformer turns ratio and secondary diode rating across manufacturing batches.

Applications

Industrial AC/DC Power Supplies

Open-Frame LED Drivers

Use Scenario: 200–240W open-frame power supply for PLC I/O modules operating from 85–265VAC input.

IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch managing flyback topology with opto-coupled regulation.

Use Value: Integrated 650V CoolMOS™ and 240W power capability eliminate external HV FET and startup circuit, reducing component count by ≥4 and footprint by 18%.

Use Scenario: Constant-current LED driver for high-bay lighting fixtures requiring >90 lm/W efficacy and Class II isolation.

IC Role / Device Role / Timing Role: Current-mode controller regulating LED string current via secondary-side feedback and primary-side sensing.

Use Value: Active Burst Mode achieves <100mW standby consumption while maintaining <1% output ripple - meeting IEC 62384 and ENERGY STAR requirements.

Medical Auxiliary Power Supplies

Appliance Main SMPS

Use Scenario: 150W auxiliary power supply for diagnostic imaging equipment with reinforced isolation and low EMI.

IC Role / Device Role / Timing Role: Isolated primary-side controller providing VDD, bias, and logic rails for main DC/DC stages.

Use Value: PG-TO220-6-47's isolated drain and wide creepage meet IEC 60601-1 creepage requirements (≥8mm) without additional slotting or spacing.

Use Scenario: Main SMPS in smart washing machines handling motor drive, display, and communication subsystems.

IC Role / Device Role / Timing Role: High-reliability flyback controller with auto-restart protection against motor surge-induced overloads.

Use Value: Adjustable blanking window prevents nuisance shutdown during pump motor startup transients, improving field failure rate by >3× vs. fixed-blank ICs.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3B5565IBKSA1	Same silicon die but in PG-TO220-6-46 (I2Pak) package with different leadframe geometry and thermal pad layout.	Requires modified PCB footprint and heatsink interface; identical electrical performance and protection behavior.	Select when legacy I2Pak mechanical compatibility or existing thermal interface design is required.
ICE3B5565PBKSA2	Revised version with updated outline dimensions per V2.3 datasheet; same electrical specs and pinout.	No functional change; intended for new designs requiring latest mechanical revision compliance.	Prefer for new designs where long-term manufacturability and alignment with Infineon's latest package spec are prioritized.

Compared with ICE3B5565IBKSA1, the BKSA1 variant offers identical electrical performance but improved thermal resistance via optimized PG-TO220-6-47 leadframe; versus BKSA2, it retains legacy mechanical tolerances suitable for established production tooling.

Availability

ICE3B5565PBKSA1 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, open-frame LED drivers, and appliance main SMPS requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for ICE3B5565PBKSA1 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.

This device belongs to the CoolSET™-F3 family - engineered specifically for high-efficiency, low-standby-power off-line SMPS in open-frame and enclosed power supplies targeting industrial, medical, and consumer applications.

FAQ

What is the maximum continuous output power achievable with ICE3B5565PBKSA1?

The ICE3B5565PBKSA1 supports up to 240W continuous input power at 230VAC ±15% under defined thermal conditions (T_a=50°C, T_j=125°C, R_thCA=2.7K/W). Actual output power depends on transformer design, cooling, and efficiency - typical 12V/20A (240W) outputs are validated in reference designs with >88% efficiency.

Does ICE3B5565PBKSA1 require an external startup resistor?

No. ICE3B5565PBKSA1 integrates a 650V startup cell that draws current directly from the rectified AC line to charge the VCC capacitor. This eliminates the need for an external high-voltage startup resistor, reducing component count, power loss, and board area in the primary-side circuit.

How does the adjustable blanking window improve system reliability?

The blanking window is set via an external RC network on the SoftS pin and disables current-sense comparison for a user-defined duration after each PWM pulse. This prevents false overcurrent trips during MOSFET turn-on spikes or high dV/dt events - critical for stable operation during motor startup or lightning surge events.

Can ICE3B5565PBKSA1 be used in dual-output flyback topologies?

Yes. Its current-mode control and optocoupler-compatible FB pin support multi-output regulation using weighted feedback networks or secondary-side controllers. Designers must ensure cross-regulation meets target specs - reference designs confirm ±3% cross-load regulation for 12V/5V dual outputs at full load.

ICE3B5565PBKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

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

Packaging:: Tube

Product Status:: Obsolete

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-TO220-6-47

Mounting Type:: Through Hole

ICE3B5565PBKSA1 FAQ

1.How can I place an order for ICE3B5565PBKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B5565PBKSA1 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 ICE3B5565PBKSA1 reliable?

The price and inventory of ICE3B5565PBKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B5565PBKSA1 is usually 5 days.

3.What payment methods are accepted for ICE3B5565PBKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B5565PBKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B5565PBKSA1?

ICE3B5565PBKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B5565PBKSA1 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 ICE3B5565PBKSA1?

For technical support, including ICE3B5565PBKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B5565PBKSA1 requirements.

6.How does Aetrix verify that ICE3B5565PBKSA1 is sourced from the original manufacturer or authorized distributors?

All ICE3B5565PBKSA1 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 ICE3B5565PBKSA1 meets industry standards.

7.What is the process for return or replacement of ICE3B5565PBKSA1?

All ICE3B5565PBKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B5565PBKSA1, 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 ICE3B5565PBKSA1 part is unused and in its original packaging.

Return procedure for ICE3B5565PBKSA1:

1.Submit a request within 90 days.

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

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