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

Infineon Technologies ICE3B0365XKLA1

Name: ICE3B0365XKLA1
Brand: Infineon Technologies
SKU: ICE3B0365XKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B0365XKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: 8-DIP (0.300", 7.62mm)

Datasheet:: ICE3B0365XKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,172

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Product details

Overview

ICE3B0365XKLA1 from Infineon Technologies is a 650V off-line SMPS current-mode controller IC with integrated depletion-mode CoolMOS™ power transistor and 650V startup cell in PG-DIP-8 package. It delivers 22W input power at 230VAC ±15%, operates at fixed 67kHz switching frequency, features ±5% peak current limiting tolerance, and enables <100mW standby power via Active Burst Mode-used in low-power AC/DC adapters and auxiliary power supplies.

For engineers reviewing the ICE3B0365XKLA1 datasheet, ICE3B0365XKLA1 pinout, ICE3B0365XKLA1 application, or ICE3B0365XKLA1 equivalent, key selection criteria include integrated 650V CoolMOS™ R_DS(on) of 6.45Ω, drain-source isolation in DIP-8, adjustable blanking window for load-jump immunity, Auto Restart protection modes (overtemperature, overvoltage, open-loop), and soft-start control for inrush current management.

Technical Context

The ICE3B0365XKLA1 integrates a current-mode PWM controller with a 650V avalanche-rugged depletion CoolMOS™ transistor, eliminating external high-voltage startup resistors and reducing BOM count. Its fixed 67kHz oscillator and internal leading-edge blanking ensure stable operation under transient load jumps while maintaining <1% output voltage ripple in Active Burst Mode.

Control logic includes feedback-driven Active Burst Mode entry/exit, user-defined soft-start timing via external capacitor on SoftS pin, and five independent Auto Restart protection triggers-VCC undervoltage, overtemperature, overvoltage, overload, and open-loop-each initiating a controlled restart cycle without latch-off.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V rated drain-source voltage-supports universal AC input (85–265VAC) without external HV startup network
f_SW	67kHz fixed switching frequency-enables optimized transformer design and EMI filter sizing
R_DS(on)	6.45Ω @ T_j=25°C-determines conduction loss and thermal derating for 22W continuous input power
I_CLIM tolerance	±5% overall peak current limit accuracy-reduces transformer and secondary diode oversizing
Standby power	<100mW at no load-achieved via feedback-controlled Active Burst Mode with immediate load-jump response
Max duty cycle	72%-sets minimum off-time for reliable magnetic reset in discontinuous conduction mode (DCM)
Blanking window	Adjustable via external RC-prevents false triggering of current limit during MOSFET turn-on spikes

Pinout & Package

ICE3B0365XKLA1 uses the PG-DIP-8 package (8-pin dual in-line plastic), with pins 4 and 5 internally shorted to carry the high-voltage drain connection. The package provides reinforced creepage distance for enhanced safety in isolated AC/DC topologies.

Pin/Terminal	Circuit Role	Design Meaning
1 (SoftS)	Soft-start timing input	External capacitor sets ramp-up time for gate drive to limit inrush current during power-up
2 (FB)	Feedback error amplifier input	Accepts optocoupler output to regulate output voltage via primary-side sensing
3 (CS)	Current sense / CoolMOS™ source	Monitors source current for peak current mode control and protection; referenced to GND
4 & 5 (Drain)	CoolMOS™ high-voltage drain	Internally shorted pins connect directly to AC line-referenced primary switch node; requires PCB creepage clearance ≥4mm
6 (n.c.)	No connect	Not bonded; must remain unconnected and unrouted to avoid parasitic coupling
7 (VCC)	Controller supply rail	Powered by auxiliary winding after startup; regulated internally to 14.6V typical; UVLO threshold 9.2V
8 (GND)	Controller ground reference	Low-side return for FB, CS, SoftS, and VCC; separate from power ground to minimize noise coupling

Key Features

Feature	Design Value
Integrated 650V CoolMOS™ + controller	Eliminates external HV startup resistor and gate driver, reducing component count by ≥4 vs discrete solutions
Active Burst Mode	Maintains controller activity during light-load bursts-no output blackout and <1% V_OUT ripple at no load
Five Auto Restart protections	Independent recovery from overtemperature, VCC overvoltage, open-loop, overload, and VCC undervoltage-no latch-off failure mode
Adjustable blanking window	RC-timed delay prevents false current-limit triggering during MOSFET turn-on transients under high-load steps
Pb-free RoHS-compliant packaging	Meets EU Directive 2011/65/EU; compatible with lead-free reflow profiles (peak 260°C)

Applications

Smart Home Power Adapters

Industrial Auxiliary Supplies

Use Scenario: 5V/1A USB-C wall adapter for smart speakers and IoT hubs operating across global AC mains (100–240VAC).

IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch-regulates output via optocoupler feedback, manages burst-mode transitions, and handles line surges up to 300VAC.

Use Value: Integrated 650V CoolMOS™ and Active Burst Mode achieve <100mW no-load consumption and meet Level VI efficiency requirements without auxiliary bias winding.

Use Scenario: 12V/0.5A auxiliary supply powering PLC I/O modules and sensor interfaces in factory automation cabinets.

IC Role / Device Role / Timing Role: Isolated flyback controller providing reinforced insulation between AC mains and low-voltage control logic; implements Auto Restart on overtemperature during cabinet overheating events.

Use Value: 67kHz fixed frequency simplifies EMI filter design for CE/EN55032 Class B compliance; wide creepage in DIP-8 meets IEC61800-5-1 reinforced insulation requirements.

LED Driver Auxiliary Rails

White Goods Control Power

Use Scenario: 15V/0.3A standby rail in outdoor LED streetlight drivers, powering microcontroller and communication ICs during night-mode dimming.

IC Role / Device Role / Timing Role: Standby power controller activated only when main LED string is off-enters Active Burst Mode automatically based on FB signal level.

Use Value: Adjustable blanking window prevents false shutdown during rapid dimming transitions; integrated startup cell eliminates 1MΩ HV resistor prone to moisture-induced failure.

Use Scenario: 5V/0.2A control supply in refrigerator mainboards, powering MCU, display, and door sensor circuits from 230VAC mains.

IC Role / Device Role / Timing Role: Primary-side SMPS controller with soft-start and precise current limiting-ensures clean power-up sequence and protects against compressor motor startup surges.

Use Value: ±5% current limit tolerance allows smaller, lower-cost transformer design; GND pin separation minimizes noise coupling into sensitive analog sensor paths.

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
ICE3B0565XKLA1	Lower R_DS(on) (4.70Ω) and higher input power rating (25W @ 230VAC)	Suitable for 5–10W higher output power designs with same footprint	Select when transformer thermal margin is constrained and higher efficiency at mid-load is required
ICE3A0365XKLA1	Same R_DS(on) (6.45Ω) but 100kHz switching frequency and higher EMI filter complexity	Better suited for compact designs where transformer size dominates board area	Choose for space-constrained adapters needing higher f_SW, accepting increased EMI filtering effort

Compared with ICE3B0365XKLA1, ICE3B0565XKLA1 offers higher power capability without layout change, while ICE3A0365XKLA1 trades lower EMI filter cost for tighter transformer sizing-both retain identical protection architecture and Active Burst Mode behavior.

Availability

ICE3B0365XKLA1 is available at Aetrix Electronics and suitable for smart home adapters, industrial auxiliary supplies, LED driver standby rails, and white goods control power requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3B0365XKLA1 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 controller and CoolMOS™ to reduce system size, improve efficiency, and simplify safety certification for universal-input AC/DC converters.

FAQ

What is the purpose of the n.c. pin (Pin 6) in the PG-DIP-8 package?

Pin 6 is not internally connected and serves no electrical function. It must remain unconnected on the PCB to prevent unintended coupling or contamination-related leakage paths. Routing traces or placing vias on this pad violates Infineon's layout guidelines and may compromise creepage distance or cause intermittent faults under humid conditions.

How does the adjustable blanking window improve system reliability?

The blanking window-set by an external RC network on the SoftS pin-delays current-sense comparator activation for 200–600ns after each switching cycle. This prevents false triggering from MOSFET drain-source voltage spikes during turn-on, enabling stable operation during abrupt load steps up to 100% without entering Auto Restart mode unnecessarily.

Can ICE3B0365XKLA1 operate without an auxiliary winding for VCC supply?

No. The IC requires VCC supply from an auxiliary winding after initial startup via its integrated 650V startup cell. Once the converter begins switching, the auxiliary winding powers VCC; if that winding fails or is omitted, the device will repeatedly enter and exit UVLO, causing erratic output regulation and potential thermal stress on the CoolMOS™ due to uncontrolled burst cycles.

What is the maximum continuous output power achievable with ICE3B0365XKLA1 in open-frame design?

At 230VAC ±15% input, ambient temperature 50°C, junction temperature ≤125°C, and external heatsink thermal resistance R_thCA = 2.7K/W, the maximum continuous input power is 22W. Output power depends on topology efficiency-typically 18–20W for well-designed flyback converters with synchronous rectification and proper transformer core selection.

ICE3B0365XKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

Package/Case:: 8-DIP (0.300", 7.62mm)

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):: 22 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-DIP-8

Mounting Type:: Through Hole

ICE3B0365XKLA1 FAQ

1.How can I place an order for ICE3B0365XKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B0365XKLA1 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 ICE3B0365XKLA1 reliable?

The price and inventory of ICE3B0365XKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B0365XKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3B0365XKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B0365XKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B0365XKLA1?

ICE3B0365XKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B0365XKLA1 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 ICE3B0365XKLA1?

For technical support, including ICE3B0365XKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B0365XKLA1 requirements.

6.How does Aetrix verify that ICE3B0365XKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3B0365XKLA1 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 ICE3B0365XKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3B0365XKLA1?

All ICE3B0365XKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B0365XKLA1, 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 ICE3B0365XKLA1 part is unused and in its original packaging.

Return procedure for ICE3B0365XKLA1:

1.Submit a request within 90 days.

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

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