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Infineon Technologies ICE3B3065I
- Part No.:
- ICE3B3065I
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- TO-220-6 Formed Leads
- Datasheet:
-
ICE3B3065I.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK TO220
- Quantity:
- Payment:
- Shipping:
Inventory:3,103
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Product details
Overview
ICE3B3065I from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650V depletion-mode CoolMOS™ power transistor, housed in PG-TO220-6-46 (I2Pak) package. It delivers up to 128W continuous input power at 230VAC ±15%, operates at fixed 67kHz switching frequency, features active burst mode for <100mW standby power, and includes auto-restart protection for overtemperature, overvoltage, overload, and VCC undervoltage - deployed in compact open-frame SMPS for industrial power supplies.
For engineers reviewing the ICE3B3065I datasheet, ICE3B3065I pinout, ICE3B3065I application, or ICE3B3065I equivalent, key selection criteria include its integrated 650V CoolMOS™ RDS(on) of 2.10Ω (typ), 72% max duty cycle, ±5% peak current limit tolerance, adjustable blanking window, and isolated drain package enabling high-voltage creepage compliance in space-constrained designs.
Technical Context
The ICE3B3065I integrates a current-mode PWM controller and a 650V avalanche-rugged depletion CoolMOS™ transistor in a single I2Pak package, eliminating external high-voltage startup circuitry via its built-in switchable startup cell. Its control architecture uses leading-edge blanking and propagation delay compensation to ensure precise peak current sensing under fast load transients.
It implements Active Burst Mode - continuously active during light-load operation - enabling immediate response to load jumps without output dropout and reducing output voltage ripple to <1%. Protection is enforced through Auto Restart Mode triggered by overtemperature, VCC overvoltage, open-loop, overload, and VCC undervoltage conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 67 kHz - enables optimized transformer design and EMI filter sizing for universal-input offline converters. |
| Max Duty Cycle | 72% - supports wide input voltage range (85–265 VAC) while maintaining stable regulation under low-line conditions. |
| RDS(on) | 2.10 Ω (typ @ 25°C) - defines conduction loss and thermal performance ceiling for 128W continuous input power rating. |
| Peak Current Limit Tolerance | ±5% overall - ensures consistent transformer and secondary diode sizing across production batches, improving BOM cost efficiency. |
| Standby Power | <100 mW at no load - meets stringent global energy efficiency standards (e.g., EU CoC Tier 2, DOE Level VI) without auxiliary winding. |
| VDS Rating | 650 V - provides sufficient margin for 265 VAC mains with surge immunity, eliminating need for external clamping in most designs. |
| Startup Cell | Integrated 650V depletion CoolMOS™ startup cell - removes external high-voltage resistor network, reducing component count and board area. |
Pinout & Package
ICE3B3065I uses the PG-TO220-6-46 (I2Pak) package with isolated drain terminal, supporting ≥8 mm creepage distance for reinforced insulation in industrial and medical-grade power supplies.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Drain) | High-side power switch drain | Directly connects to primary winding of flyback transformer; rated for 650V operation with avalanche ruggedness. |
| Pin 3 (CS) | Current sense input | Monitors source current of integrated CoolMOS™ for precise peak current limiting and short-circuit protection. |
| Pin 4 (GND) | Controller ground reference | Low-noise analog/digital ground return; separate from power ground path to minimize noise coupling into control loop. |
| Pin 5 (VCC) | Controller supply input | Accepts 10.5–25 V DC; powers internal logic and gate driver; includes undervoltage lockout (UVLO) with hysteresis. |
| Pin 6 (SoftS) | Soft-start timing node | Connects external capacitor to control ramp-up of duty cycle at power-on, preventing inrush current and transformer saturation. |
| Pin 7 (FB) | Feedback input | Receives optocoupler signal from secondary side to regulate output voltage; controls entry/exit from Active Burst Mode. |
Key Features
| Feature | Design Value |
|---|---|
| Active Burst Mode | Enables immediate load-step response with <1% output ripple at light load - eliminates blackouts common in traditional burst-mode controllers. |
| Adjustable Blanking Window | Prevents false triggering of current limit during high dv/dt events (e.g., transformer leakage spikes), increasing system reliability under transient loads. |
| Auto Restart Protection | System-level fault recovery for overtemperature, VCC overvoltage, open-loop, overload, and VCC undervoltage - avoids latch-up and enables safe field recovery. |
| Internal Leading Edge Blanking | Compensates for MOSFET turn-on delay and parasitic ringing, ensuring accurate current sensing without external RC filtering. |
| Isolated Drain Package | PG-TO220-6-46 structure isolates high-voltage drain from heatsink mounting surface - simplifies safety certification and reduces creepage/clearance layout effort. |
Applications
| Industrial AC/DC Adapters | Open-Frame Server PSUs |
|---|---|
|
Use Scenario: 100–130W universal-input offline power supply for programmable logic controllers (PLCs) and industrial HMIs operating in ambient temperatures up to 70°C. IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch - regulates output voltage via optocoupler feedback while managing startup, burst mode, and fault recovery. Use Value: Integrated 650V CoolMOS™ and active burst mode reduce component count by ≥30% and achieve <100mW standby power without auxiliary winding or external HV startup circuit. |
Use Scenario: Compact 120W open-frame power supply for edge-computing servers requiring high power density and Class II isolation. IC Role / Device Role / Timing Role: Single-chip flyback controller with built-in HV switch - handles full primary-side control including soft-start, current limiting, and auto-restart protection. Use Value: Isolated drain package enables direct heatsink mounting with reinforced creepage (>8 mm), eliminating need for insulating pads and simplifying mechanical design. |
| Medical Auxiliary Power Supplies | LED Driver Power Stages |
|
Use Scenario: 90–110W auxiliary power module for diagnostic imaging equipment where safety certification (IEC 60601-1) and long-term reliability are mandatory. IC Role / Device Role / Timing Role: Primary-side regulated controller with precise ±5% current limit - ensures predictable transformer derating and consistent fault behavior under abnormal conditions. Use Value: Auto-restart protection on overtemperature and VCC overvoltage prevents hazardous latch-up, supporting fail-safe behavior required for life-support-adjacent systems. |
Use Scenario: Constant-voltage LED driver for commercial lighting fixtures operating from 100–277 VAC with dimming compatibility. IC Role / Device Role / Timing Role: High-efficiency flyback controller managing primary-side regulation and burst-mode dimming response. Use Value: Fast load-jump response in Active Burst Mode maintains stable LED current during phase-cut dimmer transitions, eliminating visible flicker. |
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 |
|---|---|---|---|
| ICE3B2065I | Lower RDS(on) (3.00 Ω), lower max input power (102W @ 230VAC) | Suitable for ≤100W designs with tighter thermal constraints | Select when lower conduction loss at medium load is prioritized over peak power capability. |
| ICE3B3065P | Same electrical specs but PG-TO220-6-47 package with non-isolated drain | Requires insulating pad for heatsink mounting; reduced creepage vs. ICE3B3065I | Choose only if mechanical footprint compatibility with legacy TO220-6-47 layouts is critical and creepage >8 mm is not required. |
Compared with ICE3B2065I and ICE3B3065P, ICE3B3065I uniquely combines 128W power capability, isolated drain packaging for enhanced safety certification, and active burst mode with sub-100mW standby - making it optimal for new industrial and medical open-frame designs demanding both performance and regulatory simplicity.
Availability
ICE3B3065I is available at Aetrix Electronics and suitable for industrial AC/DC adapters, open-frame server PSUs, and medical auxiliary power supplies requiring stable component supply, long lifecycle support, and traceable sourcing.
Supply support for ICE3B3065I 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 9001 and IATF 16949.
The CoolSET™-F3 product line targets cost-sensitive, high-reliability offline SMPS applications - integrating controller and 650V CoolMOS™ to reduce bill-of-materials, improve efficiency, and simplify safety-compliant power supply design.
FAQ
What is the maximum continuous input power rating for ICE3B3065I?
ICE3B3065I delivers up to 128W continuous input power at 230VAC ±15% in an open-frame design with Ta=50°C, Tj=125°C, and external heatsink thermal resistance RthCA=2.7K/W. This rating assumes proper PCB copper area and heatsink mounting per Infineon's recommended layout guidelines in the datasheet.
Does ICE3B3065I require an external startup resistor?
No - ICE3B3065I integrates a 650V depletion-mode CoolMOS™ startup cell that draws initial current directly from the rectified AC line, eliminating the need for an external high-voltage startup resistor and associated power loss.
How does Active Burst Mode differ from conventional burst mode in ICE3B3065I?
In ICE3B3065I, Active Burst Mode keeps the controller fully operational during light-load periods, enabling immediate response to load steps without output dropout. Conventional burst mode disables oscillator and control logic between bursts, causing delayed response and higher output ripple - ICE3B3065I reduces ripple to <1% and eliminates blackouts.
Can ICE3B3065I be used in designs requiring IEC 60601-1 compliance?
Yes - its PG-TO220-6-46 package provides isolated drain and ≥8 mm creepage distance, supporting reinforced insulation requirements. When combined with appropriate transformer design, Y-capacitor placement, and PCB layout, it meets essential safety requirements for medical auxiliary power supplies.
ICE3B3065I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolMOS™, CoolSET™F3
- Package/Case:
- TO-220-6 Formed Leads
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- 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:
- 67kHz
- Power (Watts):
- 128 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-TO220-6-46
- Mounting Type:
- Through Hole
ICE3B3065I FAQ
1.How can I place an order for ICE3B3065I through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE3B3065I 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 ICE3B3065I reliable?
The price and inventory of ICE3B3065I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B3065I is usually 5 days.
3.What payment methods are accepted for ICE3B3065I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B3065I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE3B3065I?
ICE3B3065I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE3B3065I 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 ICE3B3065I?
For technical support, including ICE3B3065I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B3065I requirements.
6.How does Aetrix verify that ICE3B3065I is sourced from the original manufacturer or authorized distributors?
All ICE3B3065I 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 ICE3B3065I meets industry standards.
7.What is the process for return or replacement of ICE3B3065I?
All ICE3B3065I units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B3065I, 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 ICE3B3065I part is unused and in its original packaging.
Return procedure for ICE3B3065I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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