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

Infineon Technologies ICE2QR0680ZXKLA1

Name: ICE2QR0680ZXKLA1
Brand: Infineon Technologies
SKU: ICE2QR0680ZXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE2QR0680ZXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE2QR0680ZXKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 7DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE2QR0680ZXKLA1 from Infineon Technologies is a quasi-resonant AC-DC PWM controller IC with integrated 800V avalanche-rugged CoolMOS® and startup cell in PG-DIP-7 package. It delivers 102W at 230VAC ±15% with R_DS(on) = 0.62 Ω (T_J = 25°C), operates across 85–265 VAC input, and enables active burst mode for <100 mW no-load standby power - deployed in LCD monitors, Blu-ray DVD players, and set-top boxes.

For engineers reviewing the ICE2QR0680ZXKLA1 datasheet, ICE2QR0680ZXKLA1 pinout, ICE2QR0680ZXKLA1 application, or ICE2QR0680ZXKLA1 equivalent, key selection criteria include integrated high-voltage MOSFET rating, quasi-resonant zero-crossing timing accuracy, digital frequency reduction behavior under light load, active burst mode control logic, and VCC pre-charge startup sequence compliance.

Technical Context

This device implements peak-current-mode quasi-resonant control using a digital up/down counter synchronized to transformer demagnetization via ZC pin input. Switch-on is determined by zero-crossing detection and counter value; switch-off is governed by FB and CS signals with cycle-by-cycle current limiting.

It integrates a BiCMOS-based controller with digital soft-start (12 ms, 4-step), foldback point correction, auto-restart protections (VCC OVP/UVP, overload, overtemperature), and latch-off OVP/short-winding protection - all operating within a 7–25 V VCC range and supporting snubberless flyback topologies.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	800 V - Enables direct connection to universal AC mains without external HV starter network
R_DS(on)	0.62 Ω @ T_J = 25°C - Sets conduction loss floor for primary-side efficiency at full load
Input Range	85–265 VAC - Supports global mains operation without manual voltage selection
Max Output Power	102 W @ 230VAC ±15%, T_a = 50°C - Validated thermal performance on 232 mm², 2 oz Cu PCB
Standby Power	<100 mW @ no load - Achieved via Active Burst Mode with controllable output ripple
Soft-Start Time	12 ms (digital, 4-step) - Limits inrush stress on CoolMOS®, transformer, and output diodes
VCC Operating Range	7–25 V - Accommodates wide auxiliary winding regulation margin and brown-out resilience

Pinout & Package

Package: PG-DIP-7 (Plastic Dual-In-Line Package, 7-pin, through-hole mount, creepage ≥ 8 mm).

Pin/Terminal	Circuit Role	Design Meaning
1 ZC	Zero-Crossing Input	Connects to auxiliary winding via RC delay; triggers MOSFET turn-on at valley point to minimize switching loss and EMI
2 FB	Feedback Input	Regulates output voltage via optocoupler; controls digital frequency reduction and burst mode entry/exit thresholds
3 CS	Current Sense Input	Monitors primary current via shunt resistor; enables cycle-by-cycle peak current limit and short-winding protection
4 N.C.	No Connection	Internally unconnected; must remain floating - no external tie or pull-up/pull-down
5 Drain	CoolMOS® Drain Terminal	High-side power switch node; connects directly to bulk capacitor and transformer primary; rated 800 V
6 -	Missing Pin	Physical gap in DIP-7 footprint; no internal connection or function
7 VCC	Controller Supply	Powered by integrated startup cell during initial charge; sustained by auxiliary winding post-startup
8 GND	Controller Ground	Reference for all analog/digital blocks; separate from power ground per layout best practice

Key Features

Feature	Design Value
Integrated 800V CoolMOS® + Startup Cell	Eliminates external HV start-up resistor and discrete MOSFET, reducing BOM count and board space
Quasi-Resonant Operation to Very Low Load	Maintains valley-switching down to ~5% load, preserving efficiency where conventional QR fails
Digital Frequency Reduction	Reduces switching frequency linearly with decreasing load, cutting core and switching losses simultaneously
Active Burst Mode	Switches entire PWM section on/off in bursts; achieves <100 mW no-load while controlling output ripple
Foldback Point Correction	Adjusts current limit threshold dynamically with line voltage to maintain consistent power delivery across 85–265 VAC

Applications

LCD Monitor Power Supply

Blu-ray Disc Player SMPS

Use Scenario: 24–32 W off-line flyback converter powering main logic and backlight instandby-aware displays.

IC Role / Device Role / Timing Role: Primary-side quasi-resonant controller managing CoolMOS® switching, ZC-synchronized valley turn-on, and burst-mode transition at <5% load.

Use Value: Enables <100 mW no-load consumption while maintaining tight output regulation and low audible noise during burst transitions.

Use Scenario: 15–25 W multi-output flyback supplying servo, laser driver, and digital logic in optical disc drives.

IC Role / Device Role / Timing Role: Integrated controller executing digital soft-start, foldback-corrected current limiting, and auto-restart OVP for transformer short detection.

Use Value: Reduces component count by integrating HV MOSFET and startup circuit, improving reliability and easing EMI filter design.

Set-Top Box Adapter

DVD Recorder Power Stage

Use Scenario: 12–18 W universal-input adapter powering embedded Linux platform and HDMI interface.

IC Role / Device Role / Timing Role: Quasi-resonant PWM controller implementing digital frequency reduction and active burst mode for EU CoC Tier 2 compliance.

Use Value: Meets <300 mW average standby power requirement without auxiliary regulators or secondary-side controllers.

Use Scenario: 30–45 W dual-rail flyback powering motor drivers and MPEG decoding SoC in record-capable DVD units.

IC Role / Device Role / Timing Role: High-voltage integrated controller delivering 800 V drain rating and latch-off OVP for robust transformer short-winding protection.

Use Value: Withstands 1000 V surge transients on primary side and prevents catastrophic failure during winding faults.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quasi-resonant SMPS controller applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE2QR4765Z	Lower R_DS(on) = 0.47 Ω, 650 V V_DS, same DIP-7 package and feature set	Better suited for 115 VAC-dominant markets or higher-efficiency designs below 85 W	Select when lower conduction loss at medium load outweighs need for 800 V rating in surge-prone environments
ICE3B0565J	Fixed-frequency PWM (not QR), 650 V V_DS, integrated 650 V MOSFET, SO-16 package	Lacks valley detection and digital frequency reduction; requires external ZCD circuit for QR emulation	Choose only if cost sensitivity overrides EMI/efficiency requirements and layout allows SOIC thermal management

Compared with ICE2QR4765Z and ICE3B0565J, ICE2QR0680ZXKLA1 uniquely combines 800 V ruggedness, true hardware-based quasi-resonant valley switching, and digital burst control - making it optimal for universal-input, low-standby, high-reliability consumer power supplies where surge immunity and light-load efficiency are non-negotiable.

Availability

ICE2QR0680ZXKLA1 is available at Aetrix Electronics and suitable for LCD monitor power supplies, Blu-ray player SMPS, and set-top box adapters requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE2QR0680ZXKLA1 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 wafer fabrication infrastructure.

This part belongs to the CoolSET®-Q1 product line - designed specifically for cost-sensitive, high-efficiency off-line quasi-resonant flyback converters targeting consumer electronics power supplies.

FAQ

What is the maximum continuous output power achievable with ICE2QR0680ZXKLA1?

The datasheet specifies 102 W at 230 VAC ±15% with T_a = 50°C and 232 mm² of 2 oz copper on the Drain pad acting as heatsink. At 115 VAC, derating applies due to higher RMS current; typical practical limit is 57 W under identical thermal conditions. Peak power capability depends on transformer design, snubber losses, and ambient airflow.

Does ICE2QR0680ZXKLA1 require an external startup resistor?

No. The integrated startup cell inside the CoolMOS® provides controlled pre-charge current to the VCC capacitor, eliminating the need for an external high-voltage startup resistor. This reduces component count, improves startup reliability, and avoids resistor power dissipation during normal operation.

How does the Active Burst Mode reduce standby power?

During light/no load, the controller enters Active Burst Mode by disabling the PWM oscillator and gate driver for extended periods, then enabling them in short bursts to replenish output capacitance. The FB pin voltage determines burst frequency and duration, maintaining regulation while limiting average input power to <100 mW.

Can ICE2QR0680ZXKLA1 be used in continuous conduction mode (CCM) flyback designs?

Yes - though optimized for discontinuous conduction mode (DCM) quasi-resonant operation, its current-mode control architecture supports CCM. However, ZC pin functionality becomes inactive in CCM, removing valley-switching benefit; designers must verify stability with slope compensation and adjust loop compensation accordingly.

ICE2QR0680ZXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™-Q1

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

Packaging:: Tube

Product Status:: Active

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 800V

Topology:: Flyback

Voltage - Start Up:: 18 V

Voltage - Supply (Vcc/Vdd):: 10.5V ~ 27V

Duty Cycle:: 50%

Frequency - Switching:: 52kHz

Power (Watts):: 102 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-7-4

Mounting Type:: Through Hole

ICE2QR0680ZXKLA1 FAQ

1.How can I place an order for ICE2QR0680ZXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE2QR0680ZXKLA1 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 ICE2QR0680ZXKLA1 reliable?

The price and inventory of ICE2QR0680ZXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE2QR0680ZXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE2QR0680ZXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE2QR0680ZXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE2QR0680ZXKLA1?

ICE2QR0680ZXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE2QR0680ZXKLA1 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 ICE2QR0680ZXKLA1?

For technical support, including ICE2QR0680ZXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE2QR0680ZXKLA1 requirements.

6.How does Aetrix verify that ICE2QR0680ZXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE2QR0680ZXKLA1 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 ICE2QR0680ZXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE2QR0680ZXKLA1?

All ICE2QR0680ZXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE2QR0680ZXKLA1, 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 ICE2QR0680ZXKLA1 part is unused and in its original packaging.

Return procedure for ICE2QR0680ZXKLA1:

1.Submit a request within 90 days.

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

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