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

Infineon Technologies ICE3A2065FKLA1

Name: ICE3A2065FKLA1
Brand: Infineon Technologies
SKU: ICE3A2065FKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3A2065FKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3A2065FKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,422

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Product details

Overview

ICE3A2065FKLA1 from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion-mode CoolMOS™ power transistor in PG-DIP-8 package, delivering 57W input power at 230VAC ±15%, operating at fixed 100kHz switching frequency with 0.92Ω R_DS(on), and featuring Active Burst Mode for <100mW standby power in auxiliary power supplies.

For engineers reviewing the ICE3A2065FKLA1 datasheet, ICE3A2065FKLA1 pinout, ICE3A2065FKLA1 application, or ICE3A2065FKLA1 equivalent, key selection criteria include integrated high-voltage startup cell, precise ±5% peak current limiting tolerance, adjustable blanking window for load-jump immunity, and Auto Restart protection modes for overtemperature, overvoltage, overload, and VCC undervoltage conditions.

Technical Context

The ICE3A2065FKLA1 integrates a 650V avalanche-rugged CoolMOS™ transistor with a dedicated current-mode PWM controller, enabling single-chip flyback converter designs without external HV startup resistors. Its internal switchable startup cell eliminates external bias winding requirements while maintaining full control over VCC supply sequencing.

It implements a fixed-frequency (100kHz) current-mode control architecture with leading-edge blanking, propagation delay compensation, and user-defined soft-start. Protection logic enforces Auto Restart Mode on overtemperature, VCC overvoltage, open-loop, overload, and VCC undervoltage faults - all with defined recovery timing and latch-free behavior.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - Enables direct connection to universal AC input (85–265VAC) without external HV pre-regulator
f_SW	100kHz fixed - Optimized for compact transformer design and EMI filtering in sub-100W SMPS
R_DS(on)	0.92Ω @ T_j=25°C - Supports 57W continuous input power at 230VAC in open-frame DIP-8 layout
I_lim tolerance	±5% overall - Reduces need for transformer turns ratio margining and secondary diode derating
Standby power	<100mW @ no load - Meets stringent Energy Star and EU CoC Tier 2 requirements without auxiliary circuitry
Blanking window	Adjustable - Prevents false triggering during transient current spikes at high-load steps
Duty cycle max	72% - Allows sufficient off-time for transformer reset in discontinuous conduction mode (DCM) flyback

Pinout & Package

Package: PG-DIP-8 (8-pin dual in-line plastic), creepage-optimized for reinforced insulation in AC/DC adapters and industrial power supplies.

Pin/Terminal	Circuit Role	Design Meaning
1	SoftS	Soft-start timing capacitor node - Controls ramp-up of PWM duty cycle to limit inrush current
2	FB	Optocoupler feedback input - Regulates output voltage via error amplifier and current source
3	CS	Current sense input tied to CoolMOS™ source - Measures primary-side peak current for cycle-by-cycle limiting
4 & 5	Drain	High-side drain terminals shorted internally - Connects directly to transformer primary and AC rectifier output
6	n.c.	No connection - Electrically isolated; must remain unconnected per datasheet
7	VCC	Controller supply rail - Powered by internal startup cell until auxiliary winding takes over
8	GND	Controller ground reference - Shared return for FB, CS, SoftS, and internal logic

Key Features

Feature	Design Value
Integrated 650V CoolMOS™	Eliminates external HV MOSFET and gate driver, reducing BOM count and PCB area by ≥30%
Active Burst Mode	Delivers immediate load-step response with <1% output ripple - avoids blackouts common in traditional burst-mode controllers
Auto Restart protection	Self-recovering fault handling for overtemperature, VCC OV, open-loop, overload, and VCC UV - no manual reset required
Precise current limiting	±5% tolerance enables tighter transformer design margins and smaller secondary rectifiers
Internal PWM leading-edge blanking	Suppresses noise-induced false triggering during MOSFET turn-on, improving reliability under EMI stress

Applications

USB-C PD Adapters

Industrial Control Power Supplies

Use Scenario: 45W USB-C Power Delivery adapter with universal AC input and tight no-load power requirement.

IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch in DCM flyback topology, managing regulation via optocoupler feedback and real-time current sensing.

Use Value: Integrated 650V CoolMOS™ and Active Burst Mode achieve <100mW standby power and rapid 50% load-step response without auxiliary bias winding.

Use Scenario: DIN-rail mounted 24V/2A auxiliary supply powering PLC I/O modules in factory automation.

IC Role / Device Role / Timing Role: Off-line SMPS controller providing isolated 24V output with reinforced creepage and Auto Restart protection against brownouts and thermal overload.

Use Value: PG-DIP-8 package meets IPC-2221 Class B creepage requirements; ±5% current limit tolerance reduces transformer copper loss by ~8% vs. ±15% alternatives.

Smart Home Gateway Power

LED Driver Auxiliary Supply

Use Scenario: Compact 12V/1A power supply inside Wi-Fi 6 mesh node requiring low EMI and zero-load efficiency compliance.

IC Role / Device Role / Timing Role: Current-mode flyback controller with soft driving and internal LEB, regulating output via secondary-side TL431 + optocoupler.

Use Value: Soft driving and fixed 100kHz operation enable Class B conducted EMI compliance without added snubbers or shielding.

Use Scenario: 15V/0.5A auxiliary supply for constant-current LED driver ICs in streetlight control units.

IC Role / Device Role / Timing Role: Isolated auxiliary supply controller powering LED driver bias rails and communication interfaces (e.g., DALI, 0–10V).

Use Value: Integrated startup cell eliminates need for high-voltage start-up resistor network, improving long-term reliability in outdoor thermal cycling environments.

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
ICE3B2065FKLA1	67kHz fixed switching frequency, identical R_DS(on) and power rating - lower EMI but larger magnetics	Better suited for EMI-sensitive medical devices where lower frequency simplifies filter design	Select when transformer size is less critical than conducted emissions performance
ICE3A2065ZKLA1	PG-DIP-7-1 package (7-pin), same electrical specs - reduced creepage distance and no pin 6 (n.c.)	Targeted at cost-optimized consumer adapters where reinforced insulation is not mandated	Select when UL/IEC62368-1 reinforced isolation is not required and board space is constrained

Compared with ICE3B2065FKLA1 and ICE3A2065ZKLA1, the ICE3A2065FKLA1 offers optimal balance of high-frequency efficiency, DIP-8 creepage compliance, and robust protection - making it preferred for industrial and certified consumer power supplies demanding both safety and dynamic performance.

Availability

ICE3A2065FKLA1 is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial control power supplies, smart home gateway power, and LED driver auxiliary supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3A2065FKLA1 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 delivers integrated HV controllers for universal-input flyback converters, designed specifically for high-efficiency, low-standby-power AC/DC power supplies in consumer, industrial, and lighting applications.

FAQ

What is the maximum continuous input power supported by ICE3A2065FKLA1 in open-frame design?

The ICE3A2065FKLA1 supports up to 57W continuous input power at 230VAC ±15% under open-frame conditions (T_a=50°C, T_j=125°C, R_thCA=2.7K/W). This rating assumes proper PCB copper area for thermal dissipation and accounts for the 0.92Ω R_DS(on) and 100kHz switching losses. Derating applies above 50°C ambient.

Does ICE3A2065FKLA1 require an external startup resistor?

No. ICE3A2065FKLA1 integrates a switchable 650V startup cell that draws current directly from the rectified AC line during initial power-up, eliminating the need for external high-voltage startup resistors. Once VCC reaches operating threshold (~14.5V), the startup cell disables and auxiliary winding powers the controller.

How does the adjustable blanking window improve system reliability?

The adjustable blanking window suppresses false current-limit triggering during MOSFET turn-on spikes caused by transformer leakage inductance. By delaying current-sense evaluation for a user-defined duration (via external RC on SoftS pin), it prevents unintended Auto Restart or burst-mode entry during high-load transients - ensuring stable operation under dynamic load steps.

Can ICE3A2065FKLA1 be used in continuous conduction mode (CCM) flyback designs?

Yes, but with design constraints. The 72% maximum duty cycle and fixed 100kHz frequency support CCM operation only at lower output voltages and higher power levels. For most applications, it is optimized for discontinuous conduction mode (DCM) due to its current-mode architecture and built-in leading-edge blanking - CCM use requires careful transformer design and slope compensation verification.

ICE3A2065FKLA1 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:: 100kHz

Power (Watts):: 57 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

ICE3A2065FKLA1 FAQ

1.How can I place an order for ICE3A2065FKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3A2065FKLA1 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 ICE3A2065FKLA1 reliable?

The price and inventory of ICE3A2065FKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3A2065FKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3A2065FKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3A2065FKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3A2065FKLA1?

ICE3A2065FKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3A2065FKLA1 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 ICE3A2065FKLA1?

For technical support, including ICE3A2065FKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3A2065FKLA1 requirements.

6.How does Aetrix verify that ICE3A2065FKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3A2065FKLA1 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 ICE3A2065FKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3A2065FKLA1?

All ICE3A2065FKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3A2065FKLA1, 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 ICE3A2065FKLA1 part is unused and in its original packaging.

Return procedure for ICE3A2065FKLA1:

1.Submit a request within 90 days.

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

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