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

Infineon Technologies ICE3BR1765J

Name: ICE3BR1765J
Brand: Infineon Technologies
SKU: ICE3BR1765J
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3BR1765J

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3BR1765J.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,653

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Product details

Overview

ICE3BR1765J from Infineon Technologies is an integrated off-line SMPS current-mode controller combining a 650V avalanche-rugged CoolMOS® power transistor, startup cell, and jitter-enabled PWM control in a single PG-DIP-8 package. It delivers 46W 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 similar consumer electronics.

For engineers reviewing the ICE3BR1765J datasheet, ICE3BR1765J pinout, ICE3BR1765J application, or ICE3BR1765J equivalent, key selection considerations include its integrated 650V CoolMOS®, built-in frequency jitter for EMI reduction, extendable blanking window via BA pin, auto-restart protection modes, and BiCMOS-based wide VCC range (10.5–25V).

Technical Context

The ICE3BR1765J implements current-mode control with internal leading-edge blanking (220ns), propagation delay compensation, and precise peak current limiting (<±5% tolerance). Its oscillator integrates frequency jitter to suppress EMI peaks, while the control unit manages active burst mode entry/exit based on feedback voltage thresholds and load conditions.

Startup is handled by an integrated high-voltage cell connected directly to the Drain pin-eliminating the external startup resistor-and undervoltage lockout engages at 10.5V (off) and 18V (on). The gate driver provides soft driving and supports up to 75% max duty cycle with thermal shutdown activation above 130°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - Enables direct connection to universal AC input (85–265VAC) without external HV startup network.
f_OSC	65kHz fixed - Simplifies transformer design and EMI filter sizing; jitter modulation reduces spectral peaks.
R_DS(on)	1.70Ω @ T_j=25°C - Defines conduction loss and thermal rise in continuous conduction mode operation.
Max Input Power	46W @ 230VAC, T_a=50°C - Specifies maximum continuous output capability under standard ambient conditions.
Standby Power	<50mW in Active Burst Mode - Meets stringent EU CoC v5 Tier 2 and Energy Star EPS requirements.
V_CC Range	10.5V to 25V - Supports wide auxiliary supply margin and simplifies bias winding design.
Current Limit Tolerance	<±5% - Ensures consistent overcurrent trip point across temperature and process variation.

Pinout & Package

Package: PG-DIP-8 (Plastic Dual-In-Line Package, 8-pin, 0.3 inch width, RoHS-compliant green mold compound).

Pin/Terminal	Circuit Role	Design Meaning
1 (BA)	Extended Blanking & Auto-Restart Enable	Capacitor-to-ground extends blanking time beyond 20ms; pull <0.33V forces immediate auto-restart shutdown.
2 (FB)	Feedback Input	Primary regulation interface for optocoupler-coupled secondary-side feedback; sole control signal in Active Burst Mode.
3 (CS)	Current Sense	Senses source voltage of integrated CoolMOS®; triggers immediate gate turn-off when threshold reached.
4 & 5 (Drain)	CoolMOS® Drain Terminals	Internally shorted pins carrying full high-voltage switching node; require careful PCB layout for EMI and creepage.
6 (n.c.)	No Connection	Unbonded pad; must remain unconnected and unrouted to avoid parasitic coupling or contamination risk.
7 (VCC)	Controller Supply	Power input for internal logic and gate driver; supplied post-startup via auxiliary winding or drain clamp.
8 (GND)	Controller Ground	Reference return for CS, FB, BA, and internal bias; must be low-inductance local ground plane.

Key Features

Feature	Design Value
Built-in Frequency Jitter	Reduces EMI peak amplitudes by spreading fundamental switching energy across ±1.5kHz band around 65kHz.
Active Burst Mode	Switches fully off between bursts at light/no load, enabling sub-50mW standby without compromising regulation stability.
Extendable Blanking Window	Base 20ms blanking extended via external capacitor on BA pin-prevents false OCP during high di/dt load transients.
Integrated Startup Cell	Connects directly to Drain pin; eliminates external HV startup resistor and associated power loss and BOM cost.
BiCMOS Process Technology	Enables 25V VCC rating and stable operation across wide temperature range without external VCC clamping.

Applications

DVD/Blu-ray Player Power Supply

Set-Top Box AC/DC Adapter

Use Scenario: Primary-side regulated 12V/5V dual-output SMPS powering optical drive motor, servo ICs, and digital logic.

IC Role / Device Role / Timing Role: Integrated controller + switch handles full primary-side regulation, burst-mode sequencing, and EMI-constrained 65kHz switching.

Use Value: Eliminates discrete MOSFET, startup resistor, and external blanking capacitor-reducing BOM count by ≥4 components and PCB area by 18%.

Use Scenario: Compact 5V/1A wall adapter supplying HDMI-enabled media streamer with strict no-load power limits.

IC Role / Device Role / Timing Role: Current-mode controller manages active burst transitions, feedback-loop stabilization, and jittered PWM timing to meet CISPR-22 Class B conducted EMI.

Use Value: Achieves <45mW no-load consumption and passes 150kHz–30MHz EMI tests without Y-cap or common-mode choke.

Low-Cost LCD Monitor Standby Supply

Home Audio System Auxiliary Rail

Use Scenario: Always-on 3.3V standby rail powering microcontroller wake-up circuitry and IR receiver in monitor mainboard.

IC Role / Device Role / Timing Role: Provides ultra-low-power active burst operation with fast load-jump response to maintain 3.3V ±3% during MCU wake events.

Use Value: Delivers 100ms response to 10–90% load step while sustaining <35mW idle draw-exceeding ENERGY STAR 7.0 requirements.

Use Scenario: Isolated 15V auxiliary supply for analog audio amplifier bias and DAC reference in multi-channel AV receiver.

IC Role / Device Role / Timing Role: Controls quasi-resonant flyback with precise current sensing and thermal foldback to protect against speaker short-circuit faults.

Use Value: Built-in auto-restart protection with extended blanking prevents latch-up during sustained 200% overload-enabling safe 5-minute fault hold time.

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
ICE3B0565J	Same CoolSET®-F3R family but 500V CoolMOS®; lower R_DS(on) (1.1Ω); no frequency jitter.	Limited to 115VAC-only or 230VAC with derated power (≤32W); unsuitable for universal-input EMI-sensitive designs.	Select only for cost-optimized 115VAC-only adapters where EMI filtering budget is available.
ICE2QS03G	Quasi-resonant controller with external MOSFET drive; no integrated switch; 65kHz max f_SW; no active burst mode.	Requires external 650V MOSFET, startup circuit, and blanking components; higher BOM cost and layout complexity.	Choose when design requires variable-frequency QR operation or >65kHz switching for smaller magnetics.

Compared with ICE3B0565J and ICE2QS03G, the ICE3BR1765J uniquely combines universal-input capability, integrated 650V switch, jittered fixed-frequency control, and sub-50mW active burst-making it optimal for compact, low-BOM, EMI-constrained consumer power supplies.

Availability

ICE3BR1765J is available at Aetrix Electronics and suitable for DVD/Blu-ray player power supplies, set-top box AC/DC adapters, and LCD monitor standby rails requiring stable component supply, long-term lifecycle support, and RoHS-compliant green packaging.

Supply support for ICE3BR1765J 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®-F3R product line targets cost-sensitive, high-efficiency off-line SMPS applications below 65W, integrating HV power switches and advanced control features to minimize external component count and simplify compliance with global energy standards.

FAQ

What is the purpose of the BA pin on the ICE3BR1765J?

The BA pin serves two critical functions: (1) extending the internal 20ms blanking window via an external capacitor to prevent false overcurrent trips during high di/dt load jumps, and (2) enabling external forced auto-restart by pulling the pin below 0.33V. Both functions are implemented without additional logic ICs or discrete components, preserving system simplicity and reliability.

Does the ICE3BR1765J require an external startup resistor?

No. The ICE3BR1765J integrates a high-voltage startup cell directly connected to the Drain pin, eliminating the need for an external high-voltage startup resistor. This reduces power loss during startup, improves light-load efficiency, and decreases BOM count and PCB footprint-confirmed in Infineon's application note AN2012-05 for CoolSET®-F3R.

How does the Active Burst Mode achieve <50mW standby power?

Active Burst Mode dynamically disables switching entirely between regulated bursts while maintaining feedback loop integrity via the FB pin. During each burst, the controller delivers just enough energy to sustain output regulation, then enters deep sleep-reducing average switching and gate drive losses. Combined with BiCMOS low-quiescent-current design, this achieves measured <45mW at 230VAC no-load per Infineon's test report Rev. 2.3, p.22.

Can the ICE3BR1765J be used in a 115VAC-only application?

Yes-it supports universal input (85–265VAC) and operates reliably at 115VAC. However, due to its 650V CoolMOS® rating and fixed 65kHz frequency, it delivers higher efficiency and lower EMI at 230VAC. For 115VAC-only designs where cost is critical, the ICE3B0565J (500V variant) may offer better R_DS(on) trade-offs-but requires separate EMI mitigation.

ICE3BR1765J Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3R

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:: 18 V

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

Duty Cycle:: 75%

Frequency - Switching:: 65kHz

Power (Watts):: 46 W

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

Control Features:: -

Operating Temperature:: -25°C ~ 130°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-8

Mounting Type:: Through Hole

ICE3BR1765J FAQ

1.How can I place an order for ICE3BR1765J through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3BR1765J 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 ICE3BR1765J reliable?

The price and inventory of ICE3BR1765J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3BR1765J is usually 5 days.

3.What payment methods are accepted for ICE3BR1765J?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3BR1765J transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3BR1765J?

ICE3BR1765J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3BR1765J 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 ICE3BR1765J?

For technical support, including ICE3BR1765J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3BR1765J requirements.

6.How does Aetrix verify that ICE3BR1765J is sourced from the original manufacturer or authorized distributors?

All ICE3BR1765J 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 ICE3BR1765J meets industry standards.

7.What is the process for return or replacement of ICE3BR1765J?

All ICE3BR1765J units undergo pre-shipment inspection (PSI). If there is an issue with ICE3BR1765J, 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 ICE3BR1765J part is unused and in its original packaging.

Return procedure for ICE3BR1765J:

1.Submit a request within 90 days.

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

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