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

Infineon Technologies ICE3A2065Z

Name: ICE3A2065Z
Brand: Infineon Technologies
SKU: ICE3A2065Z
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3A2065Z

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3A2065Z.pdf

Description:: IC OFFLINE SWITCH FLYBACK 7DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,637

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Product details

Overview

ICE3A2065Z from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion-mode CoolMOS™ power transistor and startup cell, housed in PG-DIP-7-1 package. It delivers 57W input power at 230VAC ±15%, operates at fixed 100kHz switching frequency, features <±5% peak current limit tolerance, and achieves <100mW standby power via Active Burst Mode - used in compact flyback SMPS for consumer adapters and industrial power supplies.

For engineers reviewing the ICE3A2065Z datasheet, ICE3A2065Z pinout, ICE3A2065Z application, or ICE3A2065Z equivalent, key selection criteria include its integrated 650V CoolMOS™, DIP-7 isolation layout, adjustable blanking window for load-jump immunity, Auto Restart protection modes (overtemperature, overvoltage, open-loop), and precise soft-start control - all critical for reliable low-component-count offline converters.

Technical Context

The ICE3A2065Z integrates a current-mode PWM controller with a 650V avalanche-rugged depletion CoolMOS™ transistor and internal high-voltage startup cell, eliminating external HV resistors. Its control architecture includes leading-edge blanking, propagation delay compensation, and user-defined soft-start to ensure stable operation during transient load steps.

It implements Active Burst Mode for ultra-low standby power (<100mW), with immediate response to load jumps and <1% output voltage ripple. Protection logic triggers Auto Restart Mode on VCC undervoltage, overtemperature, overvoltage, overload, or open-loop conditions - all implemented with internal comparators and latched state machines without external components.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650V - enables direct rectified mains connection up to 265VAC without pre-regulator
f_SW	100kHz fixed - balances EMI performance and transformer size for sub-60W designs
R_DS(on)	0.92Ω @ 25°C - determines conduction loss and thermal derating in DIP-7 package
P_IN(max)	57W @ 230VAC ±15% - defines maximum continuous power in open-frame design at T_a=75°C
I_CLIM tolerance	<±5% - ensures consistent transformer sizing and secondary diode selection across production lots
Standby Power	<100mW - meets Energy Star Tier 2 and EU CoC v5 requirements without auxiliary winding
Max Duty Cycle	72% - sets minimum primary turns ratio and limits peak primary current in discontinuous conduction mode

Pinout & Package

ICE3A2065Z uses the PG-DIP-7-1 package - a 7-pin dual-in-line plastic package with isolated drain terminals and creepage-optimized layout for reinforced insulation in AC/DC applications. Pin 4 is internally unconnected; pins 1–3 and 5–8 map to functional terminals as defined below.

Pin/Terminal	Circuit Role	Design Meaning
1	SoftS	Soft-start timing node - connects external capacitor to set ramp-up time of PWM duty cycle
2	FB	Feedback input - accepts optocoupler output to regulate output voltage via error amplifier
3	CS	Current sense / CoolMOS™ source - senses source current for peak-current-mode control and protection
4	n.c.	No connection - electrically isolated; no PCB trace or component required
5	Drain	CoolMOS™ high-side switch drain - directly connects to rectified mains input and transformer primary
7	VCC	Controller supply - powered by auxiliary winding after startup; UVLO threshold at 12.5V
8	GND	Controller ground - common reference for FB, CS, SoftS; separate from power ground plane per layout guidelines

Key Features

Feature	Design Value
Integrated 650V CoolMOS™ + controller	Reduces BOM count by eliminating external MOSFET, gate driver, and startup resistor - enables 3-component primary-side design
Active Burst Mode	Delivers <100mW no-load consumption while maintaining immediate load-step response - no output dropout during burst-to-active transition
Adjustable blanking window	Prevents false overcurrent triggering during transformer leakage spikes - configurable via external RC on SoftS pin
Auto Restart protection suite	Self-recovering fault handling for overtemperature, VCC overvoltage, open-loop, overload, and undervoltage - avoids latch-off and manual reset
Precise peak current limiting	<±5% tolerance enables consistent transformer design and eliminates need for current-sense resistor calibration

Applications

USB-C Wall Adapter

Industrial PLC Power Supply

Use Scenario: Compact 45W USB-C PD adapter operating from universal 85–265VAC input with tight no-load power requirement.

IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch - regulates output via optocoupler feedback, manages burst-mode timing, and executes cycle-by-cycle current limiting.

Use Value: Integrated CoolMOS™ and Active Burst Mode eliminate auxiliary winding and reduce standby power to 78mW - meeting IEC 62368-1 and DOE Level VI.

Use Scenario: DIN-rail mounted 24V/2A industrial power supply powering PLC I/O modules in factory automation cabinets.

IC Role / Device Role / Timing Role: Off-line flyback controller with robust protection - handles brown-out, surge, and thermal stress in unventilated enclosures.

Use Value: Auto Restart Mode on overtemperature and open-loop faults ensures safe recovery without system shutdown - sustaining uptime in mission-critical control loops.

Smart Home Gateway PSU

LED Driver for Commercial Lighting

Use Scenario: Low-profile 12V/1.5A power supply inside Wi-Fi 6 gateway housing, requiring EMI compliance and zero audible noise.

IC Role / Device Role / Timing Role: Fixed-frequency current-mode controller - synchronizes switching to minimize beat frequencies and enables spread-spectrum-compatible design.

Use Value: 100kHz fixed f_SW and soft driving reduce conducted EMI peaks, eliminating need for Y-capacitor rework in Class B emissions testing.

Use Scenario: Constant-voltage LED driver powering 12V addressable LED strips in retail display lighting with dimming interface.

IC Role / Device Role / Timing Role: Primary-side regulated flyback controller - interfaces with 0–10V dimming signal via FB pin modulation.

Use Value: Precise <±5% current limit tolerance ensures consistent LED current across units - eliminating binning and field calibration.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE3A2065	Same silicon die but in PG-DIP-8 package with pins 4 & 5 shorted internally; includes n.c. pin not present in DIP-7-1	DIP-8 variant requires larger PCB footprint and lacks the creepage-optimized pin 4 isolation of DIP-7-1	Select ICE3A2065 only if board layout already accommodates DIP-8 or requires pin 4 grounding for EMI filtering
ICE3B2065Z	Identical DIP-7-1 package and R_DS(on), but 67kHz fixed switching frequency and lower gate drive strength	Better efficiency at high line (>230VAC); higher transformer size and reduced power density vs. 100kHz version	Choose ICE3B2065Z when optimizing for full-load efficiency over power density, especially in thermally constrained enclosures

Compared with ICE3A2065 and ICE3B2065Z, the ICE3A2065Z offers highest power density via 100kHz operation and optimal creepage in DIP-7-1, making it preferred for space-constrained adapters - whereas ICE3A2065 trades layout flexibility for legacy compatibility, and ICE3B2065Z prioritizes thermal margin over size.

Availability

ICE3A2065Z is available at Aetrix Electronics and suitable for USB-C wall adapters, industrial PLC power supplies, smart home gateway PSUs, and commercial LED drivers requiring stable component supply and long-term lifecycle support.

Supply support for ICE3A2065Z 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™-F3 product line targets cost-sensitive, high-efficiency offline SMPS designs - integrating HV power switches and controllers to minimize external components while maintaining safety and reliability in universal-input AC/DC conversion.

FAQ

What is the purpose of the n.c. pin (Pin 4) in the ICE3A2065Z PG-DIP-7-1 package?

Pin 4 is internally unconnected and serves no electrical function. It is retained for mechanical compatibility and creepage distance optimization between Drain (Pin 5) and VCC (Pin 7). No PCB trace, pull-up, or grounding is required - leaving it floating maintains specified isolation ratings and avoids unintended coupling paths.

How does the Active Burst Mode in ICE3A2065Z differ from conventional burst mode in other controllers?

Unlike conventional burst modes that disable the controller core, ICE3A2065Z's Active Burst Mode keeps the oscillator and error amplifier fully operational - enabling real-time feedback monitoring and immediate PWM resumption upon load step. This eliminates output voltage dropout and reduces ripple to <1%, verified under 230VAC no-load conditions per datasheet Figure 22.

Can ICE3A2065Z be used in continuous conduction mode (CCM) flyback designs?

Yes - the ICE3A2065Z supports both discontinuous (DCM) and continuous conduction mode (CCM) operation. Its 72% maximum duty cycle, precise current sensing, and propagation delay compensation allow stable CCM operation up to ~40W output with proper transformer design and slope compensation applied via the CS pin network.

What thermal derating applies to ICE3A2065Z in a standard 2-layer PCB without heatsink?

In a standard FR-4 PCB with 1 cm² copper pour per layer and no external heatsink, ICE3A2065Z delivers 28W continuous input power at T_a=75°C (T_j=125°C), as specified in the "230VAC ±15%" column of the datasheet Table on page 4. Derating follows linear interpolation: ~0.33W/°C above 75°C ambient.

ICE3A2065Z Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

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

Packaging:: Tube

Product Status:: Obsolete

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 650V

Topology:: Flyback

Voltage - Start Up:: 15 V

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

Duty Cycle:: 72%

Frequency - Switching:: 100kHz

Power (Watts):: 57 W

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

Control Features:: Soft Start

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

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7-1

Mounting Type:: Through Hole

ICE3A2065Z FAQ

1.How can I place an order for ICE3A2065Z through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3A2065Z 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 ICE3A2065Z reliable?

The price and inventory of ICE3A2065Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3A2065Z is usually 5 days.

3.What payment methods are accepted for ICE3A2065Z?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3A2065Z transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3A2065Z?

ICE3A2065Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3A2065Z 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 ICE3A2065Z?

For technical support, including ICE3A2065Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3A2065Z requirements.

6.How does Aetrix verify that ICE3A2065Z is sourced from the original manufacturer or authorized distributors?

All ICE3A2065Z 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 ICE3A2065Z meets industry standards.

7.What is the process for return or replacement of ICE3A2065Z?

All ICE3A2065Z units undergo pre-shipment inspection (PSI). If there is an issue with ICE3A2065Z, 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 ICE3A2065Z part is unused and in its original packaging.

Return procedure for ICE3A2065Z:

1.Submit a request within 90 days.

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

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