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

Infineon Technologies ICE3A3565PBKSA1

Name: ICE3A3565PBKSA1
Brand: Infineon Technologies
SKU: ICE3A3565PBKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3A3565PBKSA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: TO-220-6 Formed Leads

Datasheet:: ICE3A3565PBKSA1.pdf

Description:: IC OFFLINE SW FLYBACK TO220-6

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3A3565PBKSA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with built-in 650V depletion CoolMOS™ and startup cell, housed in PG-TO220-6-47 package. It delivers 170W input power at 230VAC ±15%, operates at fixed 100kHz switching frequency, features <±5% peak current limit tolerance, and supports Active Burst Mode for <100mW standby power - deployed in AC/DC adapters for industrial power supplies.

For engineers reviewing the ICE3A3565PBKSA1 datasheet, ICE3A3565PBKSA1 pinout, ICE3A3565PBKSA1 application, or ICE3A3565PBKSA1 equivalent, key selection criteria include R_DS(on) (1.55Ω), thermal derating at T_a=50°C, Auto Restart protection coverage (OVP/OCP/OTP/UVP), and isolated drain configuration for high-voltage isolation integrity.

Technical Context

The ICE3A3565PBKSA1 integrates a 650V avalanche-rugged depletion CoolMOS™ transistor with a current-mode PWM controller featuring precise leading-edge blanking and propagation delay compensation. Its control unit implements adjustable blanking window timing and feedback-controlled Active Burst Mode entry/exit logic.

Protection is implemented via Auto Restart Mode triggered by VCC overvoltage, output open-loop, overload, overtemperature, and VCC undervoltage events - all independently monitored with dedicated internal comparators and latched state machines. The device uses internal soft-start ramp and user-defined external capacitor for controlled power-up sequencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Switching Frequency	Fixed 100 kHz - enables predictable EMI filter design and transformer optimization for 170W continuous input power.
R_DS(on)	1.55 Ω @ T_j = 25°C - determines conduction loss and thermal rise in high-power offline flyback topologies.
Peak Current Limit Tolerance	< ±5% - ensures consistent transformer sizing and secondary diode rating across production batches.
Standby Power	< 100 mW at no load - achieved via feedback-synchronized Active Burst Mode with immediate load-jump response.
Maximum Input Power	170 W @ 230VAC ±15%, T_a = 50°C, R_thCA = 2.7 K/W - defines usable power envelope in open-frame industrial enclosures.
V_DS Rating	650 V - supports universal AC input (85–265 VAC) with margin for line surges and reflected transients.
Duty Cycle Limit	72% max - constrains transformer turns ratio and minimum operating frequency during light-load burst cycles.

Pinout & Package

ICE3A3565PBKSA1 is packaged in PG-TO220-6-47 - a thermally enhanced, isolated-drain I2Pak variant with creepage distance optimized for >3mm clearance in high-voltage AC/DC designs.

Pin/Terminal	Circuit Role	Design Meaning
1 Drain	CoolMOS™ high-side switch drain terminal	Directly connects to primary winding and snubber network; electrically isolated from package tab for safe heatsinking.
3 CS	Current sense input / CoolMOS™ source	Monitors primary current via external shunt or transformer sense winding; referenced to GND for accurate peak detection.
4 GND	Controller ground reference	Low-impedance return path for internal logic, gate driver, and feedback circuitry; separate from power ground plane.
5 VCC	Internal supply voltage input	Accepts 11.5–25 V DC after startup; powers controller core and gate driver; includes UVLO and OVP protection.
6 SoftS	Soft-start timing capacitor connection	External capacitor sets ramp time for PWM duty cycle during power-up to limit inrush and stress on transformer/diode.
7 FB	Feedback error amplifier input	Receives optocoupler signal from secondary side to regulate output voltage; controls burst mode activation threshold.

Key Features

Feature	Design Value
Integrated 650V CoolMOS™ + controller	Eliminates external HV MOSFET and associated gate drive components, reducing BOM count and layout area by ≥30%.
Active Burst Mode	Delivers <100mW standby while maintaining real-time responsiveness - no output blackout during sudden load steps.
Adjustable blanking window	Prevents false overcurrent triggering during transient load jumps, enabling stable operation under dynamic industrial loads.
Auto Restart protection suite	Covers OVP, OTP, OCP, UVP, and open-loop faults - each initiates safe shutdown and periodic retry without manual reset.
Precision current limiting	±5% tolerance enables tighter transformer design margins and smaller secondary rectifier selection without safety derating.

Applications

Industrial AC/DC Power Supply

LED Driver for High-Bay Lighting

Use Scenario: 170W open-frame power supply powering PLC I/O modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Primary-side current-mode controller and HV switch regulating 24V/5A output with tight cross-regulation.

Use Value: Integrated CoolMOS™ eliminates external HV FET and driver, reducing component count and improving thermal reliability at 70°C ambient.

Use Scenario: Constant-voltage LED driver for 150W high-bay luminaires in warehouse environments.

IC Role / Device Role / Timing Role: Flyback controller managing primary-side regulation and active burst for low-noise dimming compatibility.

Use Value: <1% output ripple in Active Burst Mode ensures flicker-free operation under 10%–100% dimming range.

Medical Auxiliary Power Module

Test Equipment AC/DC Converter

Use Scenario: Isolated 12V/3A auxiliary supply for patient-monitor front-end analog circuitry.

IC Role / Device Role / Timing Role: Safety-isolated controller with reinforced creepage (PG-TO220-6-47) meeting IEC 60601-1 creepage requirements.

Use Value: Isolated drain package enables direct mounting to grounded heatsink without additional insulation barriers.

Use Scenario: Lab-grade 48V/2A bench power supply requiring low standby consumption and fast transient recovery.

IC Role / Device Role / Timing Role: Primary-side controller implementing precise current limit and soft-start for repeatable turn-on behavior.

Use Value: Adjustable blanking window prevents nuisance tripping during repetitive 500ms load pulses used in automated test sequences.

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
ICE3A3565IBKSA1	Same specs but in PG-TO220-6-46 package with different pin 2 assignment (n.c. vs. GND); identical thermal resistance.	Requires PCB redesign due to pin 2 function change and outline dimension variation per V2.3 datasheet page 29.	Select when existing layout uses PG-TO220-6-46 footprint and GND routing aligns with pin 4 only.
ICE3B3565PBKSA1	67kHz fixed frequency, same R_DS(on) (1.55Ω), lower switching loss but larger magnetics required.	Better efficiency at full load in space-constrained designs where EMI filtering favors lower frequency.	Choose for 50/60Hz line-synchronized applications or where transformer core size dominates board area.

Compared with ICE3A3565PBKSA1, ICE3A3565IBKSA1 offers mechanical interchangeability only with layout adaptation, while ICE3B3565PBKSA1 trades higher magnetics volume for reduced switching loss - both require revalidation of burst mode timing and protection thresholds.

Availability

ICE3A3565PBKSA1 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, LED drivers for high-bay lighting, and medical auxiliary power modules requiring stable component supply and long-term lifecycle support.

Supply support for ICE3A3565PBKSA1 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 cost-sensitive, high-reliability offline SMPS designs - integrating HV switches and controllers to reduce system complexity while maintaining robust protection and low standby power.

FAQ

What is the maximum continuous output power achievable with ICE3A3565PBKSA1 in an open-frame design?

The datasheet specifies 170W maximum continuous input power at 230VAC ±15%, T_a = 50°C, and R_thCA = 2.7 K/W. Real-world output power depends on topology efficiency - typical flyback designs achieve 140–155W DC output. Thermal derating applies above 50°C ambient; no forced airflow is assumed in this rating.

Does ICE3A3565PBKSA1 require an external startup resistor?

No. The device integrates a 650V startup cell that draws current directly from the rectified AC line via the Drain pin, eliminating the need for an external high-voltage startup resistor. This reduces component count and improves reliability in high-input-voltage applications.

How does the adjustable blanking window function in ICE3A3565PBKSA1?

The blanking window is set by an external RC network on the SoftS pin and disables current-sense comparator response for a programmable duration after each PWM pulse edge. This prevents false overcurrent trips during transformer leakage spikes or sudden load transients, ensuring stable operation under dynamic conditions.

Can ICE3A3565PBKSA1 be used in LLC resonant converters?

No. ICE3A3565PBKSA1 is designed exclusively for hard-switched current-mode topologies (flyback, forward, push-pull). It lacks variable-frequency control, zero-voltage switching detection, or resonant timing circuitry required for LLC operation - using it in such a topology would result in uncontrolled switching and potential failure.

ICE3A3565PBKSA1 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:: 100kHz

Power (Watts):: 170 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

ICE3A3565PBKSA1 FAQ

1.How can I place an order for ICE3A3565PBKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3A3565PBKSA1 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 ICE3A3565PBKSA1 reliable?

The price and inventory of ICE3A3565PBKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3A3565PBKSA1 is usually 5 days.

3.What payment methods are accepted for ICE3A3565PBKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3A3565PBKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3A3565PBKSA1?

ICE3A3565PBKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3A3565PBKSA1 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 ICE3A3565PBKSA1?

For technical support, including ICE3A3565PBKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3A3565PBKSA1 requirements.

6.How does Aetrix verify that ICE3A3565PBKSA1 is sourced from the original manufacturer or authorized distributors?

All ICE3A3565PBKSA1 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 ICE3A3565PBKSA1 meets industry standards.

7.What is the process for return or replacement of ICE3A3565PBKSA1?

All ICE3A3565PBKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3A3565PBKSA1, 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 ICE3A3565PBKSA1 part is unused and in its original packaging.

Return procedure for ICE3A3565PBKSA1:

1.Submit a request within 90 days.

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

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