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

Infineon Technologies ICE3B3565PBKSA1

Name: ICE3B3565PBKSA1
Brand: Infineon Technologies
SKU: ICE3B3565PBKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B3565PBKSA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: TO-220-6 Formed Leads

Datasheet:: ICE3B3565PBKSA1.pdf

Description:: IC OFFLINE SW FLYBACK TO220-6

Quantity:: RFQ Add To RFQ list

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Inventory:3,078

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Product details

Overview

ICE3B3565PBKSA1 from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion-mode CoolMOS™ power transistor, housed in PG-TO220-6-47 package. It delivers 170W continuous 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, open-loop, and VCC undervoltage conditions - deployed in high-efficiency flyback SMPS for industrial power supplies.

For engineers reviewing the ICE3B3565PBKSA1 datasheet, ICE3B3565PBKSA1 pinout, ICE3B3565PBKSA1 application, or ICE3B3565PBKSA1 equivalent, key selection criteria include its integrated 650V CoolMOS™ with 1.55Ω R_DS(on) @ 25°C, adjustable blanking window for load-jump immunity, precise ±5% peak current limiting tolerance, and isolated drain package enabling reinforced creepage distance in TO-220-based designs.

Technical Context

This device integrates a current-mode PWM controller and a 650V avalanche-rugged depletion CoolMOS™ transistor in a single isolated-drain TO-220 package. Its control architecture implements fixed-frequency (67kHz) operation with leading-edge blanking, propagation delay compensation, and user-defined soft-start to ensure stable startup and transient response.

The Active Burst Mode dynamically modulates switching pulses under light load while maintaining immediate load-jump response - eliminating output voltage blackout. Protection logic triggers auto-restart on VCC undervoltage, overtemperature, overvoltage, overload, and open-loop faults, with internal precise current sensing enabling transformer and secondary diode downsizing.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V rated drain-source voltage - supports universal 85–265VAC input without external HV startup network
f_SW	67kHz fixed switching frequency - balances EMI performance and magnetics size in mid-power flyback designs
R_DS(on)	1.55Ω typ @ 25°C - enables 170W continuous input power at 230VAC with minimal conduction loss
Standby Power	<100mW @ no-load - achieved via Active Burst Mode with feedback-controlled pulse skipping
Current Limit Tolerance	±5% overall - ensures consistent transformer sizing and secondary diode selection across production lots
Max Duty Cycle	72% - provides sufficient on-time margin for wide-input-range operation with variable line and load
Blanking Window	Adjustable - suppresses false triggering during high di/dt events like output load steps

Pinout & Package

ICE3B3565PBKSA1 uses the PG-TO220-6-47 package - a 6-pin, isolated-drain TO-220 variant with creepage-enhanced layout and RoHS-compliant lead plating. The drain terminal is electrically isolated from the mounting tab, enabling direct heatsink connection without insulation requirements.

Pin/Terminal	Circuit Role	Design Meaning
1 (Drain)	Power MOSFET Drain	650V high-side switch node - connected to primary winding of flyback transformer
3 (CS)	Current Sense Input	Monitors source current of integrated CoolMOS™ - sets peak current limit and enables OCP
4 (GND)	Controller Ground Reference	Analog ground for internal circuitry - separate from power ground path to reduce noise coupling
5 (VCC)	Controller Supply Voltage	Internal LDO input - powers control logic; requires external bulk capacitor ≥10µF
6 (SoftS)	Soft-Start Control	External RC network defines startup ramp time - prevents inrush current and overshoot
7 (FB)	Feedback Input	Optocoupler-connected error amplifier input - regulates output voltage via duty cycle adjustment

Key Features

Feature	Design Value
Integrated 650V CoolMOS™	Eliminates external HV startup resistor and gate driver - reduces BOM count and PCB footprint
Active Burst Mode	Delivers immediate load-step response with <1% output ripple - avoids brownout during light-to-heavy transitions
Auto Restart Protection	Recovery from overtemperature, overvoltage, overload, open-loop, and VCC UVLO - improves field reliability without latch-off risk
Precise Peak Current Limit	±5% tolerance enables consistent transformer design and predictable short-circuit behavior
Adjustable Blanking Window	Prevents false OCP triggering during high di/dt transients - increases system robustness under dynamic loads

Applications

Industrial AC/DC Adapters

LED Driver Power Supplies

Use Scenario: 100–200W enclosed AC/DC adapters powering PLC I/O modules and sensor interfaces in factory automation.

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™ eliminates external HV startup components; 67kHz operation optimizes transformer core loss vs. EMI filter size.

Use Scenario: Constant-voltage LED drivers for high-bay lighting systems requiring >150W output with Class II isolation.

IC Role / Device Role / Timing Role: Isolated primary-side controller regulating output via optocoupler feedback loop with precise current limiting.

Use Value: Auto-restart protection ensures safe recovery from LED string open-circuit faults; <100mW standby meets Energy Star v2.0 requirements.

Medical Auxiliary Power Supplies

White Goods SMPS

Use Scenario: 12V/24V auxiliary power for patient monitor displays and low-power subsystems - operating within IEC 60601-1 creepage constraints.

IC Role / Device Role / Timing Role: Reinforced-isolation flyback controller using isolated drain TO-220 package to meet 8mm creepage requirements.

Use Value: PG-TO220-6-47 package provides inherent isolation between drain and control pins - reduces need for slotting or triple-insulated transformers.

Use Scenario: Main SMPS in washing machines and refrigerators delivering 12V/5V rails for MCU, display, and motor control.

IC Role / Device Role / Timing Role: High-reliability primary-side controller handling wide input (85–265VAC) and thermal cycling over 10+ year lifetimes.

Use Value: ±5% current limit tolerance and thermal shutdown with auto-restart prevent transformer saturation failures during voltage sags or compressor startups.

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
ICE3B3565IBKSA1	Same specs but in PG-TO220-6-46 (I2Pak) package - non-isolated drain, smaller creepage	Suitable for non-reinforced isolation designs where heatsink isolation is handled externally	Select when board-level creepage can be managed via layout; avoid if reinforced isolation is required by safety standard
ICE3B3065PBKSA1	Lower R_DS(on) = 2.10Ω - reduced conduction loss but lower max power (128W @ 230VAC)	Better thermal margin at 100–120W range; less suitable for 170W continuous operation	Choose for cost-sensitive 100–120W designs where peak power headroom is not critical

Compared with ICE3B3565IBKSA1 and ICE3B3065PBKSA1, ICE3B3565PBKSA1 uniquely combines 170W capability, isolated drain packaging, and <100mW standby - making it optimal for safety-critical, high-power, low-standby industrial SMPS where creepage and efficiency are jointly constrained.

Availability

ICE3B3565PBKSA1 is available at Aetrix Electronics and suitable for industrial AC/DC adapters, LED driver power supplies, and medical auxiliary power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ICE3B3565PBKSA1 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 off-line SMPS designs - integrating controller and power switch to simplify flyback converter implementation across consumer, industrial, and medical applications.

FAQ

What is the maximum continuous input power rating for ICE3B3565PBKSA1?

ICE3B3565PBKSA1 delivers 170W maximum continuous input power at 230VAC ±15% under open-frame conditions (T_a=50°C, T_j=125°C, R_thCA=2.7K/W). At 75°C ambient with no heatsink, its rated power drops to 83W - confirming its suitability for thermally constrained industrial enclosures.

Does ICE3B3565PBKSA1 require an external startup resistor?

No. ICE3B3565PBKSA1 integrates a 650V startup cell that draws initial current directly from the rectified AC line, eliminating the need for an external high-voltage startup resistor. This reduces component count, improves reliability, and avoids resistor power dissipation during normal operation.

How does the adjustable blanking window improve system reliability?

The adjustable blanking window disables current-sense comparator response for a user-defined duration after each switching event. This prevents false overcurrent triggering during transformer leakage spikes or output diode reverse recovery - especially critical during rapid load steps in industrial motor drives or LED dimming circuits.

Can ICE3B3565PBKSA1 operate in discontinuous conduction mode (DCM)?

Yes. ICE3B3565PBKSA1 is optimized for DCM flyback operation, with fixed 67kHz frequency, 72% max duty cycle, and precise peak current control. Its internal leading-edge blanking and propagation delay compensation ensure accurate current sensing even at light loads and high switching frequencies typical of DCM designs.

ICE3B3565PBKSA1 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):: 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

ICE3B3565PBKSA1 FAQ

1.How can I place an order for ICE3B3565PBKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B3565PBKSA1 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 ICE3B3565PBKSA1 reliable?

The price and inventory of ICE3B3565PBKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B3565PBKSA1 is usually 5 days.

3.What payment methods are accepted for ICE3B3565PBKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B3565PBKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B3565PBKSA1?

ICE3B3565PBKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B3565PBKSA1 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 ICE3B3565PBKSA1?

For technical support, including ICE3B3565PBKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B3565PBKSA1 requirements.

6.How does Aetrix verify that ICE3B3565PBKSA1 is sourced from the original manufacturer or authorized distributors?

All ICE3B3565PBKSA1 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 ICE3B3565PBKSA1 meets industry standards.

7.What is the process for return or replacement of ICE3B3565PBKSA1?

All ICE3B3565PBKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B3565PBKSA1, 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 ICE3B3565PBKSA1 part is unused and in its original packaging.

Return procedure for ICE3B3565PBKSA1:

1.Submit a request within 90 days.

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

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