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

Infineon Technologies ICE3B0565JFKLA1

Name: ICE3B0565JFKLA1
Brand: Infineon Technologies
SKU: ICE3B0565JFKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B0565JFKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3B0565JFKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3B0565JFKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with built-in 650V CoolMOS® and startup cell in PG-DIP-8 package, operating at 67 kHz fixed frequency with ±5% current-limit tolerance, active burst mode for <100 mW standby power, and frequency jittering for EMI reduction-designed for low-cost AC/DC adapters and auxiliary power supplies.

For engineers reviewing the ICE3B0565JFKLA1 datasheet, ICE3B0565JFKLA1 pinout, ICE3B0565JFKLA1 application, or ICE3B0565JFKLA1 equivalent, key selection criteria include integrated high-voltage switching capability, precise peak-current limiting, auto-restart protection modes, soft-start control via external capacitor, and compatibility with CV/CC secondary-side regulation schemes.

Technical Context

The ICE3B0565JFKLA1 implements a BiCMOS-based current-mode PWM architecture with internal 650V CoolMOS® drain-source connection, fixed 67 kHz oscillator with jittering, and leading-edge blanking for noise immunity. Its control unit integrates adjustable blanking window timing via SoftS pin capacitance and supports immediate load-jump response during active burst mode without output blackout.

Protection logic includes auto-restart on overtemperature, VCC overvoltage, open-loop, overload, and VCC undervoltage conditions. The startup cell draws 1.05 mA from Drain to charge VCC until 18 V is reached, then disables itself-eliminating need for external startup resistor and reducing light-load losses.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650 V - Enables direct connection to universal AC input (85–265 VAC) without external HV MOSFET.
f_OSC	67 kHz - Fixed switching frequency with jittering reduces EMI peak emissions in conducted and radiated tests.
I_START	1.05 mA - Internal startup current sourced from Drain pin eliminates external high-voltage resistor and associated losses.
Standby Power	<100 mW @ 270 VAC no-load - Achieved via Active Burst Mode with continuous feedback loop control and <1% output ripple.
V_CC Range	10.3 V to 26 V - Supports wide auxiliary supply variation typical in CV/CC secondary-side regulated adapters.
Current Limit Tolerance	±5% - Tight peak-current threshold enables accurate power limiting across temperature and line voltage, reducing transformer/diode oversizing.
Max Duty Cycle	75% - Ensures sufficient off-time for transformer reset and safe operation under transient overloads.

Pinout & Package

ICE3B0565JFKLA1 is housed in PG-DIP-8 package with creepage/clearance optimized for reinforced insulation in AC/DC converters. Pins 4 and 5 are internally shorted as common Drain connection; Pin 6 is NC (not connected).

Pin/Terminal	Circuit Role	Design Meaning
1 SoftS	Soft-start / Auto-restart / Jitter control	External capacitor sets soft-start ramp time, blanking window duration for load jumps, and jitter period-no separate components needed.
2 FB	Feedback input	Accepts optocoupler signal to regulate output voltage; controls duty cycle and triggers Active Burst Mode below ~1.2 V.
3 CS	Current sense	Senses source voltage of internal CoolMOS®; triggers immediate gate shutdown when internal 1.0 V threshold is exceeded.
4 & 5 Drain	Integrated CoolMOS® drain	High-side switch node rated for 650 V; connects directly to bulk capacitor and primary winding-no external HV FET required.
6 N.C.	No connection	Internally unconnected; must remain floating-no PCB trace or component allowed.
7 VCC	Controller supply	Powered by auxiliary winding; UVLO turn-on at 18 V, turn-off at 10.3 V; bias current drops to 500 µA in burst mode.
8 GND	Signal ground	Reference for CS, FB, SoftS; isolated from primary-side ground in typical flyback layout-requires careful PCB partitioning.

Key Features

Feature	Design Value
Active Burst Mode	Enables continuous regulation at no load with <100 mW input power and immediate response to load steps-no output dropout or restart delay.
Integrated Startup Cell	1.05 mA current sourced from Drain pin eliminates external HV startup resistor, improving efficiency and reducing BOM count.
Frequency Jittering	Spreads spectral energy around 67 kHz fundamental, lowering peak EMI by >10 dB in quasi-peak measurements per CISPR 22/32.
Precise Peak Current Limit	±5% tolerance over temperature ensures consistent power limiting-allows smaller transformer core and lower-rated secondary diode.
Auto Restart Protection	Enters latched-off state on overtemperature, VCC OV, open-loop, overload, or VCC UV-resumes automatically after fault removal without AC cycle reset.

Applications

USB Wall Adapter

LCD Monitor Auxiliary Supply

Use Scenario: Compact 5 V/2 A USB charging adapter accepting universal AC input (85–265 VAC) with CoC Tier 2 compliance.

IC Role / Device Role / Timing Role: Primary-side SMPS controller providing PWM regulation, burst-mode standby control, and integrated HV switching.

Use Value: Eliminates external HV MOSFET and startup resistor, reduces transformer size by 15%, and achieves <75 mW no-load consumption.

Use Scenario: 12 V/0.5 A standby rail for LCD monitor main board, powering microcontroller and display logic during sleep mode.

IC Role / Device Role / Timing Role: Off-line flyback controller managing CV/CC regulation via optocoupler feedback and active burst timing.

Use Value: Maintains stable 12 V output with <0.5% ripple during burst mode and recovers within 50 µs from 0→100 mA load step.

Smart Speaker Power Supply

IoT Gateway AC/DC Module

Use Scenario: 3.3 V/1.2 A always-on rail for voice assistant SoC and Wi-Fi module in smart speaker, requiring ultra-low standby leakage.

IC Role / Device Role / Timing Role: Integrated controller executing current-mode PWM, soft-start sequencing, and thermal foldback protection.

Use Value: Delivers 90% efficiency at 20% load and sustains <80 mW input at 230 VAC no-load-meeting Energy Star v3.0 requirements.

Use Scenario: DIN-rail mounted IoT gateway with dual-output (5 V/1 A + 3.3 V/0.5 A) AC/DC converter for industrial sensor aggregation.

IC Role / Device Role / Timing Role: Primary-side controller enabling single-transformer dual-output design with cross-regulation via coupled windings.

Use Value: Reduces total solution size by 22% versus discrete controller+FET, while supporting -40°C to +105°C ambient operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3B0365J	Lower R_DS(on) (6.45 Ω vs. 4.70 Ω), reduced max output power (6.45 W vs. 12 W at 230 VAC)	Better suited for sub-5 W adapters where thermal margin is constrained; less headroom for surge loads	Select when designing for ≤5 W universal-input adapters with strict cost targets and no requirement for >10 W peak capability
ICE3B1565J	Higher R_DS(on) (1.70 Ω), higher max output power (42 W at 230 VAC), same 67 kHz f_OSC	Targeted at mid-power adapters (15–30 W); requires larger heatsinking due to higher conduction loss at full load	Choose for 15–30 W applications needing higher continuous power but willing to trade off light-load efficiency for cost-per-watt

Compared with ICE3B0365J and ICE3B1565J, ICE3B0565JFKLA1 delivers optimal balance of standby efficiency (<100 mW), continuous power (12 W), and thermal performance in compact DIP-8 form-making it ideal for mainstream 5–12 W AC/DC adapters where both no-load consumption and surge capability matter.

Availability

ICE3B0565JFKLA1 is available at Aetrix Electronics and suitable for USB wall adapters, LCD monitor auxiliary supplies, and smart speaker power rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3B0565JFKLA1 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 leader specializing in power management, automotive MCUs, and industrial control ICs, with global R&D and manufacturing infrastructure.

The CoolSET®-F3 product line delivers highly integrated AC/DC controllers targeting cost-sensitive, high-volume power supplies-designed to minimize external components while meeting stringent global energy efficiency standards.

FAQ

What is the purpose of the SoftS pin in ICE3B0565JFKLA1?

The SoftS pin serves three functions: (1) soft-start ramp generation via external capacitor, (2) adjustable blanking window timing to suppress false overcurrent trips during fast load transients, and (3) frequency jitter period control. Its voltage is clamped at 3.0 V during Active Burst Mode to maintain regulation stability while minimizing quiescent current.

Does ICE3B0565JFKLA1 require an external startup resistor?

No. ICE3B0565JFKLA1 integrates a 1.05 mA startup cell connected directly to the Drain pin, eliminating the need for an external high-voltage startup resistor. This improves light-load efficiency and reduces BOM count-startup current flows only until VCC reaches 18 V, then the cell disables automatically.

How does Active Burst Mode differ from traditional burst mode in ICE3B0565JFKLA1?

Unlike conventional burst modes that disable the controller entirely, ICE3B0565JFKLA1's Active Burst Mode keeps the internal comparators and feedback path fully operational. The PWM latch remains active, enabling immediate response to load steps (<50 µs) and maintaining output ripple below 1%-critical for always-on IoT and audio applications.

What protection features are implemented in ICE3B0565JFKLA1?

ICE3B0565JFKLA1 includes auto-restart protection for overtemperature, VCC overvoltage, output open-loop, overload, and VCC undervoltage conditions. It also features internal leading-edge blanking, propagation delay compensation, and precise ±5% peak-current limiting-all implemented without external components to enhance system robustness and reduce failure rates.

ICE3B0565JFKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

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

Packaging:: Bulk

Product Status:: Obsolete

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 18 V

Voltage - Supply (Vcc/Vdd):: 10.3V ~ 26V

Duty Cycle:: 75%

Frequency - Switching:: 67kHz

Power (Watts):: 25 W

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

Control Features:: Soft Start

Operating Temperature:: -40°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-8

Mounting Type:: Through Hole

ICE3B0565JFKLA1 FAQ

1.How can I place an order for ICE3B0565JFKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B0565JFKLA1 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 ICE3B0565JFKLA1 reliable?

The price and inventory of ICE3B0565JFKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B0565JFKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3B0565JFKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B0565JFKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B0565JFKLA1?

ICE3B0565JFKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B0565JFKLA1 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 ICE3B0565JFKLA1?

For technical support, including ICE3B0565JFKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B0565JFKLA1 requirements.

6.How does Aetrix verify that ICE3B0565JFKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3B0565JFKLA1 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 ICE3B0565JFKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3B0565JFKLA1?

All ICE3B0565JFKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B0565JFKLA1, 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 ICE3B0565JFKLA1 part is unused and in its original packaging.

Return procedure for ICE3B0565JFKLA1:

1.Submit a request within 90 days.

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

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