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

Infineon Technologies ICE3BR4765JZXKLA1

Name: ICE3BR4765JZXKLA1
Brand: Infineon Technologies
SKU: ICE3BR4765JZXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3BR4765JZXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3BR4765JZXKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 7DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3BR4765JZXKLA1 from Infineon Technologies is an off-line AC/DC current-mode PWM controller IC with integrated 650V CoolMOS® power transistor, fixed 65 kHz switching frequency, active burst mode for <50 mW standby power, and built-in startup cell - designed for low-power SMPS in DVD players, set-top boxes, and battery adapters operating from 85–265 VAC input.

For engineers reviewing the ICE3BR4765JZXKLA1 datasheet, ICE3BR4765JZXKLA1 pinout, ICE3BR4765JZXKLA1 application, or ICE3BR4765JZXKLA1 equivalent, key selection criteria include integrated high-voltage MOSFET capability, precise ±5% peak current limiting tolerance, extendable blanking window via BA pin, frequency jitter for EMI reduction, and BiCMOS-based wide 10.5–25 V_VCC operating range.

Technical Context

This IC integrates a 650V avalanche-rugged CoolMOS® transistor and a BiCMOS controller in a single PG-DIP-7 package, eliminating external startup resistors and reducing component count. Its current-mode architecture includes propagation delay compensation and internal leading-edge blanking to maintain stable power delivery across line and load variations.

The CoolSET®-F3R jitter series implements active burst mode with full optocoupler feedback control during light-load operation, enabling tight output voltage regulation while minimizing ripple. The BA pin provides dual functionality: extending the 20 ms blanking window with an external capacitor and enabling external auto-restart by pulling below 0.33 V.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650 V - Enables direct connection to universal AC mains without external HV startup network.
f_SW	65 kHz (fixed) - Optimized for cost-effective transformer design and EMI filter sizing in sub-30 W applications.
R_DS(on)	4.7 Ω @ T_j = 25°C - Low conduction loss supports 26 W max input power at 50°C ambient without heatsink.
Standby Power	<50 mW - Achieved via active burst mode with full feedback loop retention, meeting EU CoC Tier 2 requirements.
Current Limit Tolerance	±5% overall - Enables accurate primary-side overcurrent protection without secondary sensing or trimming.
V_CC Range	10.5–25 V - Wide supply range accommodates variable auxiliary winding voltages and simplifies bias design.
Max Duty Cycle	75% - Supports sufficient on-time margin for flyback designs under low-line conditions.

Pinout & Package

ICE3BR4765JZXKLA1 is housed in a PG-DIP-7 (7-pin plastic dual in-line package) with creepage and clearance optimized for reinforced insulation in AC/DC converters up to 265 VAC input.

Pin/Terminal	Circuit Role	Design Meaning
1 - BA	Extended Blanking & Auto-Restart Enable	Capacitor-connected pin to extend overload blanking time beyond 20 ms; pulled low (<0.33 V) to force immediate auto-restart entry.
2 - FB	Feedback Input	Primary-side regulation interface accepting optocoupler signal; sole control input during active burst mode.
3 - CS	Current Sense	Senses source voltage of integrated CoolMOS®; triggers shutdown when threshold reached, enabling cycle-by-cycle current limiting.
4 - n.c.	No Connect	Internally unconnected; must remain floating per datasheet layout guidelines.
5 - Drain	CoolMOS® Drain Terminal	High-voltage node connected directly to AC rectified input; carries full switching current and voltage stress.
6 - n.c.	No Connect	Internally unconnected; must remain floating.
7 - V_CC	Controller Supply	Power input for control circuitry; powered by auxiliary winding after startup; UVLO thresholds at 10.5 V (off) and 18 V (on).
8 - GND	Controller Ground	Reference node for all internal analog blocks and gate driver; requires low-inductance PCB return path.

Key Features

Feature	Design Value
Built-in Soft Start	20 ms internal ramp - Eliminates inrush current stress on transformer and output capacitors during power-up.
Frequency Jitter	±4% spread spectrum modulation - Reduces peak EMI amplitude by distributing energy across narrowband frequencies.
Soft Gate Driving	Controlled slew rate on gate output - Minimizes dv/dt-induced EMI and prevents parasitic turn-on of CoolMOS®.
Active Burst Mode	Full optocoupler feedback retention - Maintains tight output regulation while achieving ultra-low standby consumption.
Propagation Delay Compensation	Internal timing correction - Ensures consistent current limit accuracy independent of input voltage or temperature drift.

Applications

DVD/Blu-ray Player Power Supply

Set-Top Box AC/DC Adapter

Use Scenario: Primary-side regulated flyback converter powering digital video playback and decoding circuitry with strict no-load power limits.

IC Role / Device Role / Timing Role: Integrated controller + HV switch providing current-mode PWM regulation, burst-mode standby control, and fault protection.

Use Value: Eliminates external HV startup resistor and RC feedback filter, reducing BOM count by ≥3 components while meeting <50 mW standby requirement.

Use Scenario: Compact, low-cost AC/DC adapter delivering 12 V/1 A to interactive media devices with variable load profiles and thermal constraints.

IC Role / Device Role / Timing Role: Single-chip solution managing switching, current sensing, soft-start, and auto-restart protection in DIP-7 footprint.

Use Value: Built-in 650 V CoolMOS® enables direct rectified input connection; extendable blanking window prevents false OCP triggering during channel-switch transients.

Low-Power Battery Charger

Compact DVD Recorder SMPS

Use Scenario: Universal-input offline charger for portable consumer electronics requiring high efficiency across 5–20 W load range and robust short-circuit recovery.

IC Role / Device Role / Timing Role: Current-mode controller with integrated HV switch and precise peak current limiting for primary-side constant-current regulation.

Use Value: ±5% current limit tolerance allows accurate CC/CV transition without secondary shunt sensing; BiCMOS V_CC range supports wide auxiliary winding voltage swing.

Use Scenario: Dual-output flyback supplying 5 V for logic and 12 V for motor drive in DVD-RW mechanisms with frequent load jumps during disc spin-up.

IC Role / Device Role / Timing Role: High-speed current-mode controller with fast load-jump response and extendable blanking window for transient overload immunity.

Use Value: BA pin capacitor extension increases blanking time beyond 20 ms, preventing premature shutdown during 500 ms motor startup surges.

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
ICE3BR4765JZ	Same die, identical electrical specs; differs only in marking and packaging variant (no 'XKLA1' suffix).	No functional difference; XKLA1 denotes specific tape-and-reel configuration and traceability coding per Infineon lot control.	Select ICE3BR4765JZXKLA1 for production traceability and Aetrix logistics compatibility; ICE3BR4765JZ is suitable for prototyping where marking format is non-critical.
ICE3AR4765JZ	Lacks frequency jitter and extended blanking; uses standard CoolSET®-F3 (non-F3R) architecture with fixed 20 ms blanking only.	Higher EMI emissions; less robust against high-current load jumps; not compliant with latest CISPR-32 Class B limits without additional filtering.	Choose ICE3AR4765JZ only if EMI filtering budget is available and load transients are infrequent; ICE3BR4765JZXKLA1 delivers superior noise performance and transient immunity out-of-box.

Compared with ICE3BR4765JZ, the XKLA1 variant adds full production traceability and packaging compliance; compared with ICE3AR4765JZ, it delivers lower EMI via jitter, faster transient response via extendable blanking, and tighter current limit tolerance - making it the preferred choice for volume consumer power supplies targeting global regulatory certification.

Availability

ICE3BR4765JZXKLA1 is available at Aetrix Electronics and suitable for DVD/Blu-ray player power supplies, set-top box AC/DC adapters, and low-power battery chargers requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3BR4765JZXKLA1 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 manufacturing infrastructure.

This part belongs to the CoolSET®-F3R jitter series - designed specifically for cost-sensitive, low-power (<30 W) offline SMPS in consumer electronics, emphasizing standby efficiency, EMI reduction, and minimal external component count.

FAQ

What is the purpose of the BA pin on ICE3BR4765JZXKLA1?

The BA pin serves two distinct functions: first, it accepts an external capacitor to extend the internal 20 ms blanking window for overload protection during high-current transients; second, it acts as an external auto-restart enable input - pulling it below 0.33 V forces immediate gate shutdown and entry into auto-restart mode. Both functions are electrically isolated within the pin's internal circuitry and do not interfere with each other during normal operation.

Does ICE3BR4765JZXKLA1 require an external startup resistor?

No. ICE3BR4765JZXKLA1 integrates a high-voltage startup cell connected directly to the Drain pin, eliminating the need for an external high-voltage startup resistor. This cell powers the controller until the V_CC supply from the auxiliary winding reaches the 18 V UVLO turn-on threshold, after which the startup cell is automatically disabled to reduce quiescent power loss.

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

Unlike conventional burst modes that disable feedback, ICE3BR4765JZXKLA1 retains full optocoupler feedback path integrity during active burst mode. The FB pin remains fully active, allowing continuous monitoring of output voltage and precise control of burst frequency and pulse width - ensuring tight regulation (±3%) and minimal output ripple even at no-load conditions.

What is the maximum continuous output power achievable with ICE3BR4765JZXKLA1?

At T_a = 50°C with no copper heatsink area, ICE3BR4765JZXKLA1 supports up to 26 W input power (18 W output) in typical flyback configurations. Output power scales with PCB copper area, airflow, and transformer design - validated reference designs achieve 24 W continuous output at 40°C ambient with 2 oz copper and 10 cm² thermal pad under the DIP-7 package.

ICE3BR4765JZXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, 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, Over Load, Over Temperature, Over Voltage

Control Features:: -

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7

Mounting Type:: Through Hole

ICE3BR4765JZXKLA1 FAQ

1.How can I place an order for ICE3BR4765JZXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3BR4765JZXKLA1 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 ICE3BR4765JZXKLA1 reliable?

The price and inventory of ICE3BR4765JZXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3BR4765JZXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3BR4765JZXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3BR4765JZXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3BR4765JZXKLA1?

ICE3BR4765JZXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3BR4765JZXKLA1 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 ICE3BR4765JZXKLA1?

For technical support, including ICE3BR4765JZXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3BR4765JZXKLA1 requirements.

6.How does Aetrix verify that ICE3BR4765JZXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3BR4765JZXKLA1 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 ICE3BR4765JZXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3BR4765JZXKLA1?

All ICE3BR4765JZXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3BR4765JZXKLA1, 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 ICE3BR4765JZXKLA1 part is unused and in its original packaging.

Return procedure for ICE3BR4765JZXKLA1:

1.Submit a request within 90 days.

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

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