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

Infineon Technologies ICE5BR3995CZXKLA1

Name: ICE5BR3995CZXKLA1
Brand: Infineon Technologies
SKU: ICE5BR3995CZXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE5BR3995CZXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE5BR3995CZXKLA1.pdf

Description:: COOLSET (INCL. GEN5) PG-DIP-7

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE5BR3995CZXKLA1 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, designed for off-line flyback and buck converters. It delivers 30 W output power at 220 V AC ±20% in DCM, features digital frequency reduction, selectable Active Burst Mode, and built-in error amplifier for direct feedback in non-isolated topologies.

For engineers reviewing the ICE5BR3995CZXKLA1 datasheet, ICE5BR3995CZXKLA1 pinout, ICE5BR3995CZXKLA1 application, or ICE5BR3995CZXKLA1 equivalent, key selection criteria include 950 V drain rating, 65 kHz switching frequency, 3.46 Ω R_DS(on), integrated line overvoltage protection (LOVP), and cascode-based fast startup capability in auxiliary power supplies.

Technical Context

The ICE5BR3995CZXKLA1 implements peak current mode control with slope compensation and cycle-by-cycle current limiting, supporting both DCM and CCM operation. Its digital control unit enables frequency jittering and soft gate driving to reduce EMI, while the cascode configuration between controller and CoolMOS™ ensures rapid VCC precharging and sub-100 ms startup time.

This CZ-version variant integrates input line overvoltage protection (LOVP) via the VIN pin-distinct from the BZ version's VERR pin-and operates across a 10.0–25.5 V VCC range. All protections-including VCC OVP/UVP, overload, open-loop, overtemperature, and VCC short-to-GND-function in auto-restart mode with defined blanking times and threshold hysteresis.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	950 V - Enables direct rectified AC input handling up to 300 VAC without external snubber stress.
f_SW	65 kHz - Fixed switching frequency optimized for EMI filtering and transformer size in compact auxiliary supplies.
R_DS(on)	3.46 Ω - Low conduction loss supports 30 W output at 220 VAC ±20% in DCM with thermal margin.
VCC Range	10.0–25.5 V - Wide supply range accommodates variable startup conditions and brown-out resilience.
LOVP Threshold	Programmable via VIN pin resistor divider - Enables adjustable line overvoltage shutdown at >300 VDC bus.
Startup Current	Typ. 100 µA - Enables high-value R_STARTUP for low standby power in energy-efficient designs.
Thermal Shutdown	150 °C with 25 °C hysteresis - Protects integrated CoolMOS™ under sustained overload or poor PCB copper layout.

Pinout & Package

ICE5BR3995CZXKLA1 is housed in a PG-DIP-7 (7-pin dual in-line plastic) package with creepage ≥5.0 mm and isolation rated for reinforced insulation per IEC 60747-17. Pin 1 is VERR/VIN (LOVP input), Pin 2 is GND, Pin 3 is CS (current sense), Pin 4 is GATE (high-side driver output), Pin 5 is VCC (IC supply), Pin 6 is DRAIN (CoolMOS™ drain terminal), Pin 7 is FB (feedback input).

Pin/Terminal	Circuit Role	Design Meaning
1 - VERR/VIN	LOVP input (CZ version)	Accepts scaled AC bus voltage; triggers shutdown if exceeds programmed threshold - replaces optocoupler feedback path in isolated designs.
2 - GND	Controller ground reference	Common return for internal bias, error amp, and protection comparators - must be low-inductance connection to power ground plane.
3 - CS	Current sense input	Monitors MOSFET source current via external shunt; includes 100 ns leading-edge blanking to suppress switching noise.
4 - GATE	High-side gate driver output	Drives CoolMOS™ gate directly; 1 A sink/source capability enables fast turn-on/turn-off with minimal external components.
5 - VCC	IC power supply	Supplies controller core; internally regulated from drain via startup resistor - requires ≥10 µF local ceramic + bulk capacitor.
6 - DRAIN	CoolMOS™ high-voltage drain	Connects to rectified AC bus; carries full primary current and withstands 950 V avalanche energy during transients.
7 - FB	Feedback input	Accepts optocoupler or resistive divider signal; controls PWM duty cycle to regulate output voltage in isolated/non-isolated configurations.

Key Features

Feature	Design Value
Digital Active Burst Mode	Selectably enters ultra-low-power standby with controllable output ripple - reduces no-load consumption to <30 mW in TV auxiliary supplies.
Integrated Error Amplifier	Enables direct feedback in non-isolated buck/flyback without TL431 - eliminates optocoupler, reducing BOM count and cost by ≥20%.
Line Overvoltage Protection (CZ)	VIN pin monitors rectified AC bus; shuts down before bulk capacitor overvoltage - prevents catastrophic failure in surge-prone mains environments.
Digital Frequency Reduction	Reduces f_SW below 50% load to improve light-load efficiency - achieves >75% efficiency at 10% load in 15 W smart metering supplies.
Cascode Startup Architecture	Uses CoolMOS™ as high-voltage pass element to charge VCC - achieves <80 ms startup time without auxiliary winding or startup IC.

Applications

Smart Meter Auxiliary Supply

White Goods Control Power

Use Scenario: Provides isolated 5 V/12 V bias for microcontroller, RTC, and communication ICs in electricity meters operating across 85–300 VAC.

IC Role / Device Role / Timing Role: Primary-side controller and HV switch in flyback topology; handles LOVP, burst-mode regulation, and auto-restart on fault.

Use Value: Eliminates need for external overvoltage clamping and reduces standby power to <15 mW - meets IEC 62053-21 Class 1 accuracy requirements.

Use Scenario: Powers main control board and display in refrigerators, washing machines, and dishwashers with wide-input AC mains.

IC Role / Device Role / Timing Role: Non-isolated buck converter controller with integrated error amp - regulates 12 V rail directly from rectified AC.

Use Value: Removes optocoupler and secondary-side regulator, cutting bill-of-materials by 4 components and improving long-term reliability.

LED TV Backlight Driver

Server PSU Standby Converter

Use Scenario: Supplies 19 V/2 A auxiliary power for LED backlight drivers and HDMI interface logic in 4K TVs.

IC Role / Device Role / Timing Role: Fixed-frequency flyback controller with digital ABM - maintains tight output regulation during dynamic dimming transitions.

Use Value: Frequency jitter and soft gate drive reduce conducted EMI by >10 dBµV - simplifies EMC filter design and passes CISPR-32 Class B.

Use Scenario: Delivers 5 V/1 A standby power for server management controllers (BMC), memory retention, and wake-on-LAN circuitry.

IC Role / Device Role / Timing Role: Isolated flyback controller with auto-restart protection - sustains operation during main PSU faults or maintenance cycles.

Use Value: 950 V drain rating allows direct connection to 300 VDC intermediate bus - avoids pre-regulator stage and improves standby efficiency by 8%.

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
ICE5BR3995BZXKLA1	BZ version lacks VIN/LOVP pin; uses VERR for error amp feedback - no line overvoltage protection.	Requires external optocoupler and separate LOVP circuit - increases component count and board area.	Select when LOVP is handled upstream or not required; lower cost where safety certification permits.
ICE5AR3995BZXKLA1	100 kHz switching frequency; same 950 V/3.46 Ω CoolMOS™ - higher switching loss but smaller magnetics.	Better suited for space-constrained designs needing <15 mm² transformer footprint - trades efficiency for size.	Select for compact consumer electronics where board area is critical and light-load efficiency is secondary.

Compared with ICE5BR3995BZXKLA1, the CZ version adds system-level surge resilience via integrated LOVP, while versus ICE5AR3995BZXKLA1 it prioritizes thermal performance and EMI control over miniaturization - making it optimal for industrial-grade auxiliary supplies requiring robustness and regulatory compliance.

Availability

ICE5BR3995CZXKLA1 is available at Aetrix Electronics and suitable for smart metering, white goods control power, LED TV auxiliary supplies, and server standby converters requiring stable component supply across extended product lifecycles.

Supply support for ICE5BR3995CZXKLA1 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 manufacturing and quality certifications including ISO/TS 16949 and IATF 16949.

The CoolSET™ product line delivers integrated HV controller-MOSFET solutions for off-line SMPS, targeting energy-efficient, compact, and safety-compliant auxiliary power supplies in home appliances, industrial equipment, and infrastructure systems.

FAQ

What is the purpose of the VIN pin on ICE5BR3995CZXKLA1?

The VIN pin serves as the input for line overvoltage protection (LOVP) in the CZ version. It accepts a resistor-divider-scaled representation of the rectified AC bus voltage. When this voltage exceeds the internal threshold (typically ~2.5 V), the IC initiates an auto-restart shutdown to protect downstream components from overvoltage stress - a feature absent in the BZ variant.

Can ICE5BR3995CZXKLA1 operate in non-isolated buck topology without an optocoupler?

Yes. The CZ version retains the integrated transconductance error amplifier accessible via the FB pin, enabling direct feedback from the output rail. This allows implementation of a non-isolated buck converter using only passive components (resistors, capacitor) on the FB node - eliminating the optocoupler, TL431, and associated bias network required in isolated designs.

How does Active Burst Mode differ between ICE5BR3995CZXKLA1 and ICE5BR3995BZXKLA1?

Both versions support selectable entry/exit thresholds for Active Burst Mode, but the CZ version's LOVP function remains active during ABM operation - ensuring surge protection is never disabled in standby. In contrast, the BZ version relies on external circuitry for LOVP, which may be powered down during burst cycles, creating a potential vulnerability window.

What is the minimum recommended copper area for the DRAIN pin in PCB layout?

Infineon specifies a minimum 100 mm² copper area on the DRAIN pad for thermal performance in non-isolated buck applications at 50°C ambient. For flyback designs, ≥200 mm² is recommended on inner or outer layers with thermal vias to internal ground planes - ensuring junction temperature stays ≤125°C under 30 W continuous output with 2 oz copper.

ICE5BR3995CZXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: 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:: Flyback

Voltage - Start Up:: 16 V

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

Duty Cycle:: 75%

Frequency - Switching:: 65kHz

Power (Watts):: 30 W

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

Control Features:: Soft Start

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7

Mounting Type:: Through Hole

ICE5BR3995CZXKLA1 FAQ

1.How can I place an order for ICE5BR3995CZXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE5BR3995CZXKLA1 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 ICE5BR3995CZXKLA1 reliable?

The price and inventory of ICE5BR3995CZXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5BR3995CZXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE5BR3995CZXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5BR3995CZXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE5BR3995CZXKLA1?

ICE5BR3995CZXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE5BR3995CZXKLA1 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 ICE5BR3995CZXKLA1?

For technical support, including ICE5BR3995CZXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5BR3995CZXKLA1 requirements.

6.How does Aetrix verify that ICE5BR3995CZXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE5BR3995CZXKLA1 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 ICE5BR3995CZXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE5BR3995CZXKLA1?

All ICE5BR3995CZXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5BR3995CZXKLA1, 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 ICE5BR3995CZXKLA1 part is unused and in its original packaging.

Return procedure for ICE5BR3995CZXKLA1:

1.Submit a request within 90 days.

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

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