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

Infineon Technologies ICE3RBR4765JZXKLA1

Name: ICE3RBR4765JZXKLA1
Brand: Infineon Technologies
SKU: ICE3RBR4765JZXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3RBR4765JZXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: 8-DIP (0.300", 7.62mm), 7 Leads

Datasheet:: ICE3RBR4765JZXKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 7DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3RBR4765JZXKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with 650V CoolMOS® and startup cell in PG-DIP-7 package, operating at fixed 65kHz switching frequency, delivering up to 26W at 230VAC input, featuring active burst mode for <50mW standby power, and built-in frequency jitter for EMI reduction - used in AC/DC adapter and auxiliary power supply designs.

For engineers reviewing the ICE3RBR4765JZXKLA1 datasheet, ICE3RBR4765JZXKLA1 pinout, ICE3RBR4765JZXKLA1 application, or ICE3RBR4765JZXKLA1 equivalent, key selection criteria include integrated high-voltage MOSFET rating (650V), precise ±5% current limiting tolerance, extended blanking time via BA pin, -40°C operational capability, and auto-restart protection for overload, overtemperature, and open-loop faults.

Technical Context

This IC implements a BiCMOS-based current-mode PWM architecture with propagation delay compensation and leading-edge blanking (220ns) to ensure accurate peak-current sensing across line/load variations. The integrated 650V CoolMOS® eliminates external HV startup resistors, reducing no-load losses and improving light-load efficiency.

The control unit supports dual blanking modes: fixed 20ms basic window and extendable blanking via external capacitor on BA pin, enabling robust response to high-current transients. Active burst mode maintains optocoupler feedback control during low-power operation, minimizing output voltage ripple while achieving sub-50mW standby consumption.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - avalanche-rugged drain rating enables direct connection to universal AC input (85–265VAC) without external HV starter network
f_OSC	65kHz fixed - internally set oscillator frequency simplifies EMI filter design and ensures stable timing without external components
R_DS(on)	4.7Ω @ T_j=25°C - low conduction loss in integrated CoolMOS® reduces thermal stress and improves full-load efficiency
Max Input Power	26W @ 230VAC, T_a=50°C - defines maximum continuous output capability under standard ambient conditions without heatsink
Current Limit Tolerance	±5% overall - tight accuracy enables consistent transformer sizing and reliable overcurrent protection across temperature
Operating Temp Range	-40°C to +125°C - wide junction range supports industrial and consumer applications in uncontrolled environments
Standby Power	<50mW - achieved via active burst mode with optocoupler-coupled regulation, meeting stringent energy-efficiency standards

Pinout & Package

Package: PG-DIP-7 (Plastic Dual In-line Package, 7-pin, 0.3" width, through-hole mounting). Pin 4 and Pin 6 are internally not connected (n.c.).

Pin/Terminal	Circuit Role	Design Meaning
1 - BA	Extended Blanking & Auto-Restart Enable	Combines two functions: adding external capacitor extends blanking time beyond 20ms; pulling below 0.33V forces immediate auto-restart entry
2 - FB	Feedback Input	Primary regulation interface for optocoupler-connected secondary-side error amplifier; sole control signal in active burst mode
3 - CS	Current Sense	Senses source voltage of integrated CoolMOS®; triggers shutdown when internal 1.35V threshold is exceeded
4 - n.c.	Not Connected	No internal connection; must remain unconnected on PCB
5 - Drain	CoolMOS® Drain Terminal	High-voltage node connected directly to AC rectified input; carries full primary-side switching current
6 - n.c.	Not Connected	No internal connection; must remain unconnected on PCB
7 - VCC	Controller Supply	10.5–25V operating range powers internal circuitry; startup cell automatically disables once VCC exceeds 18V
8 - GND	Controller Ground	Reference return for all internal analog blocks and gate driver; requires low-inductance layout to minimize noise coupling

Key Features

Feature	Design Value
Integrated 650V CoolMOS® + Startup Cell	Eliminates external HV startup resistor, reducing BOM count and no-load power loss by >30% versus discrete solutions
Active Burst Mode with Opto-Coupled Control	Maintains closed-loop regulation at light load using FB pin, enabling fast transient recovery and <50mW standby compliance
Built-in Frequency Jitter & Soft Gate Driving	Reduces peak EMI amplitude by spreading switching spectrum; soft drive minimizes dv/dt-induced ringing and gate oscillation
Extendable Blanking Window via BA Pin	Base 20ms blanking extended with external capacitor - allows safe delivery of high inrush current during cold start or load jumps
Auto-Restart Protection Suite	Covers overload, open-loop, VCC undervoltage, overtemperature (>130°C), and overvoltage - limits average power during fault to prevent thermal runaway

Applications

Adapter/Charger

Set-Top Box Power Supply

Use Scenario: Universal-input 5V/2A wall adapter for smartphones and peripherals operating across 85–265VAC mains.

IC Role / Device Role / Timing Role: Primary-side current-mode PWM controller with integrated HV switch, regulating output via optocoupler feedback and managing burst-mode transitions.

Use Value: Achieves <50mW no-load consumption and meets CoC Tier 2 and DOE Level VI efficiency requirements without auxiliary winding or external HV components.

Use Scenario: Standby and main power supply for digital entertainment devices requiring rapid wake-up and low quiescent draw.

IC Role / Device Role / Timing Role: Dual-mode controller providing regulated 12V main rail and 3.3V standby rail via auxiliary winding, with independent burst-mode control per rail.

Use Value: Enables <100mW total system standby power by coordinating active burst operation across multiple outputs while maintaining regulation stability.

Auxiliary Power for Server

DVD/Blu-ray Player PSU

Use Scenario: 5V/1A isolated auxiliary supply powering management controllers (BMC, IPMI), fans, and LEDs in rack-mounted servers.

IC Role / Device Role / Timing Role: Isolated flyback controller delivering tightly regulated output with enhanced reliability under wide ambient (-40°C to +70°C) and long-life requirements.

Use Value: -40°C minimum operating temperature and integrated thermal shutdown ensure uninterrupted operation in unheated server bays and edge compute enclosures.

Use Scenario: Compact, low-noise power supply for optical disc players requiring silent operation and minimal EMI interference with audio/video circuits.

IC Role / Device Role / Timing Role: EMI-optimized current-mode controller with built-in frequency jitter and soft gate drive, suppressing conducted emissions in sensitive AV subsystems.

Use Value: Meets CISPR-32 Class B conducted emission limits without additional filtering, reducing board area and cost in space-constrained DVD/Blu-ray chassis.

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
ICE3RBR4765JZ	Same die, identical PG-DIP-7 package and marking - XKL A1 suffix denotes specific tape-and-reel packaging and traceability variant	No functional difference; fully interchangeable in design and layout	Select XKL A1 for production traceability and logistics alignment with Infineon's A1-grade distribution channel
ICE3RBR1765JZ	Same architecture but 1.7Ω R_DS(on); higher conduction loss at high load, lower max power (18W vs 26W)	Targeted for lower-power adapters (<15W); unsuitable for 26W designs due to thermal derating	Choose only when lower cost and reduced power density are acceptable trade-offs for lighter loads

Compared with ICE3RBR1765JZ, ICE3RBR4765JZXKLA1 delivers 44% higher input power capability at same ambient, enabling smaller transformers and fewer secondary-side components; versus generic non-jitter controllers, its integrated frequency modulation reduces EMI filter component count by up to 30%.

Availability

ICE3RBR4765JZXKLA1 is available at Aetrix Electronics and suitable for adapter/charger, set-top box, and server auxiliary power supply designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3RBR4765JZXKLA1 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 fabrication infrastructure.

This part belongs to the CoolSET®-F3R family - designed specifically for highly integrated, low-standby-power offline SMPS applications where high-voltage integration, EMI robustness, and thermal resilience are critical.

FAQ

What is the purpose of the BA pin, and how is it configured for extended blanking?

The BA pin serves dual functions: extending the internal 20ms blanking window and enabling external auto-restart. For extended blanking, connect a capacitor between BA and GND - capacitance value linearly increases blanking duration beyond 20ms. This allows safe delivery of high inrush current during cold start or sudden load steps without false overcurrent triggering.

Does ICE3RBR4765JZXKLA1 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. Once VCC rises above 18V, the startup cell automatically disables, reducing no-load power loss and simplifying primary-side circuitry - a key enabler of <50mW standby performance.

How does active burst mode maintain output regulation at light load?

Unlike conventional burst modes that disable feedback, ICE3RBR4765JZXKLA1 retains optocoupler-coupled feedback via the FB pin during active burst operation. The control unit continuously monitors FB voltage and adjusts burst frequency and pulse width to maintain tight output regulation, minimizing voltage ripple and enabling fast wake-up from standby without output sag.

What protection features are implemented, and how do they respond to fault conditions?

The IC provides auto-restart protection for overload, open-loop, VCC undervoltage, overtemperature (>130°C), and overvoltage. Upon fault detection, it enters auto-restart mode - cycling gate drive on/off with ~1-second period - limiting average power dissipation and preventing thermal runaway. Normal operation resumes automatically after fault removal and successful soft-start sequence.

ICE3RBR4765JZXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolSET®F3R

Package/Case:: 8-DIP (0.300", 7.62mm), 7 Leads

Packaging:: Tube

Product Status:: Last Time Buy

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 18 V

Voltage - Supply (Vcc/Vdd):: 10.5V ~ 25V

Duty Cycle:: 75%

Frequency - Switching:: 65kHz

Power (Watts):: 26 W

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

Control Features:: -

Operating Temperature:: -40°C ~ 130°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7-1

Mounting Type:: Through Hole

ICE3RBR4765JZXKLA1 FAQ

1.How can I place an order for ICE3RBR4765JZXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3RBR4765JZXKLA1 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 ICE3RBR4765JZXKLA1 reliable?

The price and inventory of ICE3RBR4765JZXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3RBR4765JZXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3RBR4765JZXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3RBR4765JZXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3RBR4765JZXKLA1?

ICE3RBR4765JZXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3RBR4765JZXKLA1 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 ICE3RBR4765JZXKLA1?

For technical support, including ICE3RBR4765JZXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3RBR4765JZXKLA1 requirements.

6.How does Aetrix verify that ICE3RBR4765JZXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3RBR4765JZXKLA1 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 ICE3RBR4765JZXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3RBR4765JZXKLA1?

All ICE3RBR4765JZXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3RBR4765JZXKLA1, 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 ICE3RBR4765JZXKLA1 part is unused and in its original packaging.

Return procedure for ICE3RBR4765JZXKLA1:

1.Submit a request within 90 days.

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

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