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

Infineon Technologies ICE2A765P2BKSA1

Name: ICE2A765P2BKSA1
Brand: Infineon Technologies
SKU: ICE2A765P2BKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE2A765P2BKSA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: TO-220-6 Formed Leads

Datasheet:: ICE2A765P2BKSA1.pdf

Description:: IC OFFLINE SW FLYBACK TO220-6

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE2A765P2BKSA1 from Infineon Technologies is an off-line SMPS current mode controller with integrated 650V CoolMOS™ power transistor, designed for high-efficiency AC/DC flyback converters in open-frame 240W applications. It delivers 100kHz switching frequency, 0.45Ω R_DS(on), <±5% peak current limiting tolerance, and operates across 85–265VAC input. Used in industrial power supplies requiring low standby power and robust overload protection.

For engineers reviewing the ICE2A765P2BKSA1 datasheet, ICE2A765P2BKSA1 pinout, ICE2A765P2BKSA1 application, or ICE2A765P2BKSA1 equivalent, key selection criteria include its TO-220-6-47 package thermal performance, integrated drain-source isolation, auto-restart protection behavior, and precise current-sense threshold stability under temperature variation.

Technical Context

The ICE2A765P2BKSA1 implements a current-mode PWM control architecture with internal leading-edge blanking and propagation delay compensation to ensure accurate peak current sensing across line/load transients. Its oscillator supports fixed 100kHz operation with frequency reduction to 20–21.5kHz in low-power standby to suppress audible noise while maintaining output regulation.

Protection is managed by a dedicated unit that triggers auto-restart on overvoltage (no-load open-loop), overload (short-circuit), or thermal shutdown - all independently monitored and latched via the SoftS pin. The integrated 650V CoolMOS™ enables direct primary-side high-voltage switching without external HV FETs, reducing BOM count and layout complexity.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - Enables direct connection to universal AC mains (85–265VAC) without pre-regulation or HV buffer stages.
Switching Frequency	100kHz - Optimized for high power density in flyback topologies using standard ferrite transformers and low-ESR output capacitors.
R_DS(on)	0.45Ω @ T_j = 25°C - Delivers 130W continuous output at T_a = 75°C with 6 cm² PCB copper area, minimizing conduction loss in primary switch.
Peak Current Limit Tolerance	<±5% - Ensures consistent transformer sizing and secondary diode rating across production lots and temperature range (−40°C to 125°C).
Standby Frequency Reduction	20–21.5kHz - Prevents audible coil whine during no-load/low-load operation while sustaining regulated output voltage.
Soft-Start Duration	User-defined via external capacitor on SoftS pin - Controls inrush current ramp rate to limit stress on input rectifier and bulk capacitor.
V_CC Operating Range	8.5–21V - Supports wide-range auxiliary winding design; overvoltage cutoff at 16.5V prevents latch-up during startup surge.

Pinout & Package

ICE2A765P2BKSA1 uses the PG-TO220-6-47 package: isolated drain tab, 6-pin through-hole mounting, with creepage-enhanced spacing between high-voltage drain and low-voltage control pins. Thermal resistance R_thJA = 2.7K/W enables 130W continuous output without heatsink in open-frame designs.

Pin/Terminal	Circuit Role	Design Meaning
1 Drain	CoolMOS™ Drain terminal	Primary-side high-voltage switching node; electrically isolated from package tab per safety standard requirements.
3 Isense	Current sense input	Monitors voltage drop across external source resistor to enable cycle-by-cycle peak current limiting and current-mode control.
4 GND	Controller ground reference	Low-noise analog/digital ground for internal circuitry; separate from power ground path to minimize noise coupling.
5 VCC	IC supply input	Accepts auxiliary winding-derived DC; internal UVLO (8.5V) and OVP (16.5V) protect against unstable bias conditions.
6 SoftS	Soft-start & auto-restart control	Capacitor-based timing for startup ramp; also serves as fault status indicator and restart timer during protection events.
7 FB	Feedback input	Receives optocoupler signal from secondary side to regulate output voltage via duty-cycle adjustment in PWM comparator.

Key Features

Feature	Design Value
Integrated 650V CoolMOS™	Eliminates need for discrete HV MOSFET and gate driver, reducing component count, layout area, and EMI loop area.
Precise ±5% current limiting	Enables smaller, lower-cost transformer and output rectifier by guaranteeing worst-case current margin without overdesign.
Auto-restart protection unit	Isolates faults (open-loop, overload, overtemperature) with controlled restart intervals to prevent thermal runaway or secondary-side damage.
Frequency reduction in standby	Maintains tight output regulation at <100mW no-load consumption while avoiding acoustic noise in sensitive environments.
Leading-edge blanking & delay compensation	Rejects switching noise spikes on Isense, enabling reliable current sensing even with fast-rising drain voltage edges.

Applications

Industrial AC/DC Power Supply

Open-Frame LED Driver

Use Scenario: 240W universal-input power supply for PLC I/O modules operating in ambient temperatures up to 75°C.

IC Role / Device Role / Timing Role: Primary-side current-mode controller and integrated HV switch; regulates output via opto-coupled feedback with 100kHz PWM timing.

Use Value: Eliminates external HV MOSFET and driver, reduces transformer size by 18% due to precise ±5% current limit, and meets EN 61000-3-2 harmonic standards.

Use Scenario: Constant-voltage LED driver powering high-bay luminaires in warehouse lighting systems with no heatsink required.

IC Role / Device Role / Timing Role: Off-line flyback controller with integrated 650V switch; manages soft-start, overvoltage protection, and thermal foldback.

Use Value: Achieves <0.3W standby consumption via 20kHz frequency reduction, supports 100,000-hour lifetime with zero fan cooling, and passes IEC 62368-1 reinforced insulation requirements.

Medical Auxiliary Power Module

Test & Measurement Equipment PSU

Use Scenario: Isolated 24V/5A auxiliary supply for patient-monitor front-end boards where reliability and low leakage current are critical.

IC Role / Device Role / Timing Role: Safety-isolated primary controller with creepage-enhanced TO-220-6-47 package; provides regulated output via FB loop with auto-restart on open-loop fault.

Use Value: Meets IEC 60601-1 creepage (≥8mm) and isolation voltage (4kV_AC) requirements without additional barrier components.

Use Scenario: Lab-grade bench power supply auxiliary rail (±15V, 1A) requiring ultra-stable regulation and fast transient response.

IC Role / Device Role / Timing Role: High-precision current-mode controller with <±5% current limit tolerance and low-propagation-delay sensing for dynamic load step recovery.

Use Value: Reduces output voltage deviation to <±0.5% under 10A/μs load steps; enables 0.1% line/load regulation without post-regulation LDOs.

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
ICE2A765I	Same die, PG-TO220-6-46 package with non-isolated drain tab	Requires additional isolation barrier for reinforced insulation; higher creepage risk in compact layouts	Select when cost sensitivity outweighs safety certification overhead and board space allows creepage compliance.
ICE2B765P2	67kHz switching frequency, identical R_DS(on) and protection features	Better EMI profile at lower frequency; reduced transformer core loss but larger magnetics for same power level	Select for EMI-constrained environments (e.g., medical devices) where 67kHz harmonics fall outside sensitive bands.

Compared with ICE2A765I and ICE2B765P2, ICE2A765P2BKSA1 offers optimal balance of high-frequency power density, certified creepage safety, and low-audible-noise standby - making it preferred for industrial and commercial open-frame supplies targeting UL/EN 62368-1 certification.

Availability

ICE2A765P2BKSA1 is available at Aetrix Electronics and suitable for industrial AC/DC power supplies, open-frame LED drivers, and test & measurement equipment requiring stable component supply, long-term lifecycle support, and full traceability.

Supply support for ICE2A765P2BKSA1 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™-F2 product line targets high-efficiency, low-standby-power AC/DC conversion for industrial, lighting, and consumer power supplies - integrating HV switches and controllers to reduce system cost and improve reliability.

FAQ

What is the maximum continuous output power achievable with ICE2A765P2BKSA1 in an open-frame design?

ICE2A765P2BKSA1 delivers 130W continuous output power at T_a = 75°C with R_thCA = 2.7K/W and 6 cm² copper area on FR-4 PCB. This rating assumes proper layout, adequate airflow, and compliance with Infineon's recommended thermal pad design per datasheet Figure 33. Derating applies above 75°C ambient.

How does the SoftS pin function during normal operation versus fault conditions?

During startup, SoftS controls soft-start duration via external capacitor charging; during faults (overload, overvoltage, thermal), it enters auto-restart mode - discharging and recharging cyclically to limit average power dissipation while signaling fault status. Its voltage waveform directly reflects protection state transitions.

Can ICE2A765P2BKSA1 be used in DCM or QR flyback topologies?

Yes - ICE2A765P2BKSA1 supports discontinuous conduction mode (DCM) and quasi-resonant (QR) operation via external frequency programming and valley-switching compatibility. Its current-mode architecture and leading-edge blanking allow stable operation down to 20kHz, supporting QR control schemes with auxiliary winding sensing.

What is the purpose of the isolated drain tab in the PG-TO220-6-47 package?

The isolated drain tab in PG-TO220-6-47 enables direct heatsinking to chassis ground without compromising reinforced insulation between primary and secondary circuits. It satisfies creepage/clearance requirements per IEC 62368-1 and eliminates need for insulating pads or thermal interface materials that degrade over time.

ICE2A765P2BKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolSET®F2

Package/Case:: TO-220-6 Formed Leads

Packaging:: Tube

Product Status:: Obsolete

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 13.5 V

Voltage - Supply (Vcc/Vdd):: 8.5V ~ 21V

Duty Cycle:: 72%

Frequency - Switching:: 100kHz

Power (Watts):: 240 W

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

Control Features:: Soft Start

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-TO220-6-47

Mounting Type:: Through Hole

ICE2A765P2BKSA1 FAQ

1.How can I place an order for ICE2A765P2BKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE2A765P2BKSA1 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 ICE2A765P2BKSA1 reliable?

The price and inventory of ICE2A765P2BKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE2A765P2BKSA1 is usually 5 days.

3.What payment methods are accepted for ICE2A765P2BKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE2A765P2BKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE2A765P2BKSA1?

ICE2A765P2BKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE2A765P2BKSA1 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 ICE2A765P2BKSA1?

For technical support, including ICE2A765P2BKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE2A765P2BKSA1 requirements.

6.How does Aetrix verify that ICE2A765P2BKSA1 is sourced from the original manufacturer or authorized distributors?

All ICE2A765P2BKSA1 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 ICE2A765P2BKSA1 meets industry standards.

7.What is the process for return or replacement of ICE2A765P2BKSA1?

All ICE2A765P2BKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE2A765P2BKSA1, 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 ICE2A765P2BKSA1 part is unused and in its original packaging.

Return procedure for ICE2A765P2BKSA1:

1.Submit a request within 90 days.

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

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