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

Infineon Technologies ICE3BR4765JFKLA1

Name: ICE3BR4765JFKLA1
Brand: Infineon Technologies
SKU: ICE3BR4765JFKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3BR4765JFKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3BR4765JFKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3BR4765JFKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller combining a 650V CoolMOS® power transistor, startup cell, and frequency-jitter PWM control in a single PG-DIP-8 package. It delivers 27W at 230VAC ±15%, operates at a fixed 65kHz switching frequency, supports active burst mode for <50mW standby power, and targets low-cost AC/DC adapters for DVD players, set-top boxes, and Blu-ray devices.

For engineers reviewing the ICE3BR4765JFKLA1 datasheet, ICE3BR4765JFKLA1 pinout, ICE3BR4765JFKLA1 application, or ICE3BR4765JFKLA1 equivalent, key selection criteria include integrated high-voltage MOSFET capability, built-in blanking window extension via BA pin, auto-restart protection modes, and jitter-enabled EMI reduction without external frequency-setting components.

Technical Context

This device implements a BiCMOS-based current-mode PWM controller with internal propagation delay compensation and leading-edge blanking (220ns), enabling precise peak-current limiting with <±5% overall tolerance. Its integrated 650V CoolMOS® drain-source path eliminates external HV startup resistors and reduces no-load losses.

The control architecture includes dual blanking modes-fixed 20ms basic blanking and capacitor-extendable blanking-and supports both active burst mode (for regulated light-load output) and auto-restart protection triggered by overload, overtemperature, VCC undervoltage, or open-loop faults. The FB pin serves as the sole regulation signal during burst mode.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - avalanche-rugged drain-source rating enables direct connection to universal AC input (85–265VAC) without external HV MOSFET.
f_OSC	65kHz fixed - internally generated oscillator frequency sets switching rate; jitter modulation reduces EMI peaks.
R_DS(on)	4.7Ω @ T_j=25°C - on-resistance of integrated CoolMOS® determines conduction loss and thermal design margin at full load.
Max Input Power	27W @ 230VAC, T_a=50°C - maximum continuous output power under standard heatsink-free conditions.
Standby Power	<50mW - achieved via Active Burst Mode, eliminating need for auxiliary flyback windings or external disable circuitry.
Duty Cycle Limit	75% - hardware-enforced maximum on-time prevents transformer saturation and ensures stable operation under transient loads.
V_CC Range	10.5V–25V - wide supply range accommodates varied bias winding designs and improves system robustness across line/load variations.

Pinout & Package

Package: PG-DIP-8 (Plastic Dual-In-Line Package, 8-pin, through-hole mount). Pins 4 and 5 are internally shorted to handle high-current drain connections; Pin 6 is not connected.

Pin/Terminal	Circuit Role	Design Meaning
1 (BA)	Extended Blanking & Auto-Restart Enable	Capacitor-to-ground extends blanking time beyond 20ms; pulling below 0.33V forces immediate auto-restart shutdown.
2 (FB)	Feedback Input	Serves as sole regulation interface in Active Burst Mode; connects to optocoupler secondary for closed-loop voltage control.
3 (CS)	Current Sense Input	Monitors source-side sense resistor voltage; triggers immediate gate turn-off when threshold reached for cycle-by-cycle current limiting.
4 & 5 (Drain)	CoolMOS® Drain Terminal	High-voltage power input node; pins are shorted internally to share current and reduce parasitic inductance in DIP-8 layout.
6 (n.c.)	No Connection	Electrically isolated; must remain unconnected to avoid unintended coupling or mechanical stress.
7 (VCC)	Controller Supply	Accepts 10.5–25V bias; integrated startup cell powers IC directly from drain until VCC reaches 18V UVLO threshold.
8 (GND)	Controller Ground Reference	Common return for control logic, sensing, and gate driver; requires low-inductance PCB routing to minimize noise coupling into CS/FB paths.

Key Features

Feature	Design Value
Built-in Frequency Jitter	Reduces EMI peak amplitudes without requiring external spread-spectrum circuitry or complex layout mitigation.
Active Burst Mode	Maintains tight output regulation at light/no load while achieving sub-50mW standby consumption-no auxiliary winding needed.
Extendable Blanking Window	20ms base blanking extended via external capacitor on BA pin; prevents false overcurrent trips during high di/dt load steps.
Integrated Startup Cell	Eliminates external HV startup resistor; draws current directly from drain node, improving efficiency and reducing BOM count.
Precise Current Limiting	<±5% total tolerance across temperature and process; enables reliable overcurrent protection without calibration or trimming.

Applications

DVD/Blu-ray Player Power Supply

Set-Top Box AC/DC Adapter

Use Scenario: Primary-side regulated 12V/5V offline SMPS powering optical drive motors, servo circuits, and digital logic in consumer disc players.

IC Role / Device Role / Timing Role: Integrated controller + 650V switch provides complete primary-side regulation with burst-mode efficiency and jitter-controlled EMI compliance.

Use Value: Eliminates separate HV MOSFET and startup network, reduces transformer turns ratio, and meets IEC 61000-3-2 harmonic limits without added filtering.

Use Scenario: Compact, cost-sensitive 5V/1A wall adapter supplying main SoC, tuner, and HDMI interface in cable/satellite receivers.

IC Role / Device Role / Timing Role: Current-mode controller manages variable load transients (e.g., channel change, HDMI hot-plug) using extendable blanking and fast burst-mode recovery.

Use Value: Achieves <50mW no-load power and passes ENERGY STAR Tier 2 standby requirements without auxiliary bias winding or external enable logic.

Low-Cost LCD Monitor Standby Supply

USB-C PD Accessory Auxiliary Converter

Use Scenario: Standby rail (3.3V/100mA) powering microcontroller, IR receiver, and display logic in always-on monitor sleep mode.

IC Role / Device Role / Timing Role: Operates exclusively in Active Burst Mode; FB pin regulates output while minimizing switching losses and audible noise.

Use Value: Delivers stable 3.3V output with <30mV ripple at 10mA load, meeting EN 55032 Class B conducted EMI limits without Y-cap or common-mode choke.

Use Scenario: Isolated auxiliary converter generating 5V bias for USB-C PD controller and level-shifters in compact travel adapters.

IC Role / Device Role / Timing Role: Provides galvanically isolated, low-noise 5V rail with integrated CoolMOS® enabling compact transformer design and reduced creepage/clearance requirements.

Use Value: Enables single-layer primary-side PCB layout with integrated HV switch, reducing bill-of-materials and assembly cost versus discrete controller+MOSFET solutions.

Equivalent & Alternatives

The following parts are listed as comparable options for similar integrated SMPS controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3BR4765JZ	Same silicon die, RoHS-compliant green mold compound, identical electrical specs and pinout.	No functional difference; Z suffix denotes lead-free plating and halogen-free packaging per JEDEC J-STD-020.	Select for RoHS/REACH-compliant production; compatible drop-in replacement with identical thermal and electrical behavior.
ICE3BR1765J	Same F3R platform but with 17Ω R_DS(on); lower power rating (18W vs. 27W); same 65kHz, jitter, burst mode.	Targeted for ≤15W applications; higher conduction loss limits max continuous output and increases thermal stress at full load.	Choose only if power requirement is ≤15W and board space/thermal budget precludes 4.7Ω variant; not suitable for 27W DVD player main supply.

Compared with ICE3BR4765JZ, the ICE3BR4765JFKLA1 offers identical performance but differs in marking and packaging format (FKLA1 denotes specific tape-and-reel configuration); versus ICE3BR1765J, it delivers 50% higher power capacity due to lower R_DS(on), enabling smaller heatsinks and broader application coverage.

Availability

ICE3BR4765JFKLA1 is available at Aetrix Electronics and suitable for DVD/Blu-ray player power supplies, set-top box AC/DC adapters, and LCD monitor standby converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3BR4765JFKLA1 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 electronics, and industrial control ICs, with global R&D and fabrication facilities.

The CoolSET®-F3R product line integrates HV power switches and controllers for cost-sensitive, low-to-mid power AC/DC conversion-designed specifically to eliminate external startup networks and reduce BOM count in consumer power supplies.

FAQ

What is the purpose of the BA pin on ICE3BR4765JFKLA1?

The BA pin serves two distinct functions: first, it accepts an external capacitor to extend the internal 20ms blanking window for improved overload immunity during high di/dt load steps; second, pulling it below 0.33V forces immediate entry into auto-restart mode, providing hardware-level fault shutdown independent of feedback loop status.

Does ICE3BR4765JFKLA1 require an external startup resistor?

No. The device integrates a high-voltage startup cell connected directly to the Drain pin, eliminating the need for an external HV startup resistor. This cell automatically disables once VCC rises above 18V, reducing no-load power loss and simplifying primary-side bias design.

How does Active Burst Mode regulate output voltage at light load?

In Active Burst Mode, the FB pin remains the sole regulation input. The controller maintains closed-loop control via the optocoupler, adjusting burst frequency and pulse width to hold output voltage within specification-even at 10mA load-while minimizing switching losses to achieve <50mW standby power.

Can ICE3BR4765JFKLA1 be used in 230VAC-only applications?

Yes. Though rated for universal input (85–265VAC), its 650V CoolMOS® and 27W power rating at 230VAC make it well-suited for single-input 230VAC systems. Designers may optimize transformer turns ratio and snubber components for narrower input range, improving efficiency and reducing stress on the integrated MOSFET.

ICE3BR4765JFKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3R

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

Packaging:: Tube

Product Status:: Active

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 18 V

Voltage - Supply (Vcc/Vdd):: 10.5V ~ 27V

Duty Cycle:: 75%

Frequency - Switching:: 65kHz

Power (Watts):: 27 W

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

Control Features:: -

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-8

Mounting Type:: Through Hole

ICE3BR4765JFKLA1 FAQ

1.How can I place an order for ICE3BR4765JFKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3BR4765JFKLA1 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 ICE3BR4765JFKLA1 reliable?

The price and inventory of ICE3BR4765JFKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3BR4765JFKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3BR4765JFKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3BR4765JFKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3BR4765JFKLA1?

ICE3BR4765JFKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3BR4765JFKLA1 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 ICE3BR4765JFKLA1?

For technical support, including ICE3BR4765JFKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3BR4765JFKLA1 requirements.

6.How does Aetrix verify that ICE3BR4765JFKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3BR4765JFKLA1 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 ICE3BR4765JFKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3BR4765JFKLA1?

All ICE3BR4765JFKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3BR4765JFKLA1, 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 ICE3BR4765JFKLA1 part is unused and in its original packaging.

Return procedure for ICE3BR4765JFKLA1:

1.Submit a request within 90 days.

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

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