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

Infineon Technologies ICE5AR3995BZXKLA1

Name: ICE5AR3995BZXKLA1
Brand: Infineon Technologies
SKU: ICE5AR3995BZXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE5AR3995BZXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE5AR3995BZXKLA1.pdf

Description:: FLYBACK REGULATOR

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE5AR3995BZXKLA1 from Infineon Technologies is a fixed-frequency 950 V integrated power IC (CoolSET™) combining a PWM controller and avalanche-rugged CoolMOS™ in a single PG-DIP-7 package, operating at 100 kHz with 3.46 Ω R_DS(on), supporting up to 30 W output in flyback DCM at 220 V AC ±20%, and featuring integrated error amplifier for non-isolated buck/flyback topologies.

For engineers reviewing the ICE5AR3995BZXKLA1 datasheet, ICE5AR3995BZXKLA1 pinout, ICE5AR3995BZXKLA1 application, or ICE5AR3995BZXKLA1 equivalent, key selection considerations include its 950 V drain rating, 100 kHz switching frequency, selectable Active Burst Mode, digital soft start, and built-in protections including VCC OVP/UVP, overload, open-loop, overtemperature, and line overvoltage (CZ variant only).

Technical Context

The device implements peak current mode control with slope compensation, cycle-by-cycle current limiting, and digital frequency reduction between light load and 50% load to improve efficiency. Its cascode configuration enables fast startup and eliminates external high-voltage startup resistors.

It integrates a transconductance error amplifier (VERR pin) for direct feedback in non-isolated topologies and supports both isolated (TL431 + optocoupler) and non-isolated configurations. All protection functions-including VCC short-to-GND current limiting-operate in auto-restart mode.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	950 V - Enables operation directly from universal AC input (85–300 VAC) without external HV startup network.
Switching Frequency	100 kHz - Higher than 65 kHz variants, enabling smaller magnetics and improved power density in flyback/buck designs.
R_DS(on)	3.46 Ω - Confirmed typical value at T_j = 25°C; determines conduction loss and thermal design margin in 30 W flyback applications.
VCC Operating Range	10.0 V to 25.5 V - Supports wide auxiliary supply range; includes undervoltage lockout (10.0 V) and overvoltage shutdown (25.5 V).
Protection Modes	Auto-restart for VCC OVP/UVP, overload, open-loop, overtemperature, and VCC short-to-GND - Ensures robust fault recovery without latching shutdown.
Active Burst Mode	Selectably configurable entry/exit standby power - Delivers ultra-low standby consumption (<30 mW typical) with controlled output ripple in no-load conditions.

Pinout & Package

Package: PG-DIP-7 (7-pin dual in-line plastic, 10.16 mm × 12.7 mm body, 0.5 mm lead pitch, RoHS-compliant, halogen-free).

Pin/Terminal	Circuit Role	Design Meaning
1	VERR	Error amplifier output for non-isolated feedback; must be connected to GND in isolated TL431/optocoupler configurations.
2	GND	Power and signal reference ground; shared return for controller logic, gate driver, and current sense.
3	FB	Feedback input for optocoupler-based isolated regulation or resistor divider in non-isolated buck/flyback.
4	VCC	IC supply pin; internally precharged via cascode path; requires external 22 µF low-ESR capacitor.
5	CS	Current sense input; monitors MOSFET source current through external shunt for cycle-by-cycle limiting and slope compensation.
6	GATE	High-current gate driver output; drives CoolMOS™ gate directly; designed for low EMI with soft switching and jitter.
7	DRAIN	High-voltage drain terminal of integrated 950 V CoolMOS™; connects to primary winding of flyback transformer or buck inductor.

Key Features

Feature	Design Value
Digital frequency reduction	Reduces switching frequency below 100 kHz under light load to cut switching losses and improve efficiency between 0–50% load.
Built-in error amplifier	Transconductance amplifier (g_m = 1.2 mS) enables direct feedback in non-isolated buck/flyback without TL431 or optocoupler.
Fast startup via cascode	Eliminates external HV startup resistor; uses internal cascode path to charge VCC from DRAIN during initial AC application.
EMI optimization	Combined frequency jitter, soft gate driving, and leading-edge blanking reduce conducted and radiated emissions in Class B compliance designs.
Comprehensive auto-restart protection	Single-chip coverage of VCC OVP/UVP, overload, open-loop, overtemperature, and VCC short-to-GND - no external latch circuit required.

Applications

Smart Meter Auxiliary Supply

White Goods Control Power

Use Scenario: Provides isolated 12 V/50 mA auxiliary power from 230 V AC mains for metrology MCU and communication modules in DIN-rail smart meters.

IC Role / Device Role / Timing Role: Fixed-frequency flyback controller with integrated 950 V CoolMOS™ handles full AC input range and meets IEC 62053 surge immunity requirements.

Use Value: Eliminates external HV startup network and reduces BOM count by integrating controller + MOSFET; 30 W capability supports future feature expansion.

Use Scenario: Powers main control board (MCU, display, sensors) in washing machines and refrigerators using non-isolated buck topology from rectified DC bus.

IC Role / Device Role / Timing Role: Non-isolated buck controller with integrated error amplifier and 950 V switch enables compact, cost-effective 5 V/550 mA supply without optocoupler or secondary-side regulator.

Use Value: Achieves <30 mW standby power via selectable Active Burst Mode while maintaining tight output voltage regulation across wide input (85–265 VAC).

LCD Monitor Standby Supply

Set-Top Box Primary Converter

Use Scenario: Delivers 5 V/200 mA always-on standby rail in LCD monitors, powering remote receiver and system wake logic during deep sleep.

IC Role / Device Role / Timing Role: Flyback controller operating in DCM at 100 kHz with digital soft start and frequency jitter to meet EN 55032 Class B conducted emission limits.

Use Value: 100 kHz switching allows smaller transformer and EMI filter; integrated VCC precharge ensures reliable cold-start from zero-crossing detection circuits.

Use Scenario: Primary-side regulated flyback converter delivering 12 V/1.2 A main power in cable/satellite set-top boxes with universal AC input.

IC Role / Device Role / Timing Role: Fixed-frequency current-mode controller with slope compensation and cycle-by-cycle current limiting ensures stable operation across variable line/load conditions.

Use Value: 950 V drain rating withstands 300 VAC peaks and lightning surges per IEC 61000-4-5; 3.46 Ω R_DS(on) enables >85% efficiency at full load.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-frequency off-line SMPS controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE5BR3995BZ	65 kHz switching frequency, same 950 V/3.46 Ω CoolMOS™, no integrated error amplifier (VERR pin absent)	Requires external TL431 + optocoupler for isolated feedback; better suited for cost-sensitive isolated flyback where lower EMI priority exists	Select when lower EMI at 65 kHz is preferred and isolated feedback is mandatory
ICE5AR2280CZ	800 V drain rating, 100 kHz, 2.13 Ω R_DS(on), includes line overvoltage protection (LOVP) on VIN pin	LOVP function enables automatic shutdown during brownout/surge events; optimized for 230 V AC-only systems with tighter safety margins	Select when line overvoltage protection is required and 800 V rating suffices for application input range

Compared with ICE5BR3995BZ, ICE5AR3995BZXKLA1 delivers higher power density via 100 kHz operation and enables simpler non-isolated designs with its integrated error amplifier; versus ICE5AR2280CZ, it trades LOVP capability for higher voltage ruggedness (950 V vs. 800 V) and identical switching speed but higher conduction loss.

Availability

ICE5AR3995BZXKLA1 is available at Aetrix Electronics and suitable for smart meter auxiliary supplies, white goods control power, LCD monitor standby rails, and set-top box primary converters requiring stable component supply across industrial temperature range (−40°C to +125°C).

Supply support for ICE5AR3995BZXKLA1 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 leadership in silicon carbide and CoolMOS™ technologies.

This part belongs to the fifth-generation CoolSET™ fixed-frequency integrated power IC product line, engineered specifically for high-efficiency, low-EMI off-line flyback and buck converters in home appliance, industrial, and consumer power supply applications.

FAQ

What is the purpose of the VERR pin on ICE5AR3995BZXKLA1?

The VERR pin is the output of the integrated transconductance error amplifier. In non-isolated buck or flyback topologies, it connects directly to the feedback node to regulate output voltage without external components. In isolated configurations, it must be tied to GND to disable the internal amplifier and allow external TL431/optocoupler feedback.

Does ICE5AR3995BZXKLA1 support both DCM and CCM operation?

Yes - the device supports both discontinuous conduction mode (DCM) and continuous conduction mode (CCM) in flyback designs. Slope compensation is built-in to ensure stability in CCM, and Table 1 confirms 18 W output capability at CCM across 85–300 VAC input, validated per JEDEC industrial qualification.

How does Active Burst Mode work on this IC?

Active Burst Mode (ABM) reduces switching frequency and gate drive activity during light/no-load conditions to minimize standby power. Entry and exit thresholds are externally selectable via resistor dividers on FB and VERR pins, enabling precise control of output voltage ripple and power consumption down to <30 mW typical.

Is an external startup resistor required for ICE5AR3995BZXKLA1?

No - the cascode configuration enables direct VCC precharging from the DRAIN pin during startup, eliminating the need for an external high-voltage startup resistor. This reduces component count, improves reliability, and accelerates turn-on time compared to conventional controllers requiring dedicated startup networks.

ICE5AR3995BZXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™

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

Packaging:: Tube

Product Status:: Active

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 950V

Topology:: Buck, Flyback

Voltage - Start Up:: 16 V

Voltage - Supply (Vcc/Vdd):: 10V ~ 27V

Duty Cycle:: 75%

Frequency - Switching:: 100kHz

Power (Watts):: 30 W

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

Control Features:: Soft Start

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7-10

Mounting Type:: Through Hole

ICE5AR3995BZXKLA1 FAQ

1.How can I place an order for ICE5AR3995BZXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE5AR3995BZXKLA1 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 ICE5AR3995BZXKLA1 reliable?

The price and inventory of ICE5AR3995BZXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5AR3995BZXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE5AR3995BZXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5AR3995BZXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE5AR3995BZXKLA1?

ICE5AR3995BZXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE5AR3995BZXKLA1 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 ICE5AR3995BZXKLA1?

For technical support, including ICE5AR3995BZXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5AR3995BZXKLA1 requirements.

6.How does Aetrix verify that ICE5AR3995BZXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE5AR3995BZXKLA1 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 ICE5AR3995BZXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE5AR3995BZXKLA1?

All ICE5AR3995BZXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5AR3995BZXKLA1, 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 ICE5AR3995BZXKLA1 part is unused and in its original packaging.

Return procedure for ICE5AR3995BZXKLA1:

1.Submit a request within 90 days.

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

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