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Infineon Technologies ICE3B3565P
- Part No.:
- ICE3B3565P
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- -
- Datasheet:
-
ICE3B3565P.pdf
- Description:
- IC OFFLINE SWITCH
- Quantity:
- Payment:
- Shipping:
Inventory:8,500
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Product details
Overview
ICE3B3565P from Infineon Technologies is an off-line AC/DC current-mode PWM controller with integrated 650 V depletion-mode CoolMOS™ power transistor and high-voltage startup cell, designed for flyback SMPS in open-frame adapters and industrial power supplies. It delivers up to 170 W input power at 230 VAC ±15%, operates at fixed 67 kHz switching frequency, features <±5% peak current limit tolerance, and achieves <100 mW standby power via Active Burst Mode.
For engineers reviewing the ICE3B3565P datasheet, ICE3B3565P pinout, ICE3B3565P application, or ICE3B3565P equivalent, key selection considerations include its isolated drain TO-220 package, adjustable blanking window for load-jump immunity, Auto Restart protection modes (overtemperature, overvoltage, open-loop), and precise internal current sensing eliminating external sense resistor calibration.
Technical Context
The ICE3B3565P integrates a 650 V avalanche-rugged CoolMOS™ transistor with a dedicated current-mode PWM controller featuring leading-edge blanking, propagation delay compensation, and soft driving for EMI reduction. Its control unit implements Active Burst Mode triggered by feedback voltage level, enabling immediate response to load steps without output blackout.
Protection logic includes five independent Auto Restart conditions-VCC undervoltage, overtemperature, output overvoltage, overload, and open-loop-each forcing controlled shutdown and periodic restart attempts. The device uses internal reference-based current limiting with <±5% tolerance across temperature, directly setting transformer and secondary diode sizing requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 67 kHz - enables predictable EMI filter design and transformer core loss optimization. |
| Drain Voltage Rating | 650 V - supports universal AC input (85–265 VAC) with margin for line surges and reflected transients. |
| RDS(on) | 1.55 Ω @ Tj = 25°C - determines conduction loss and thermal derating in 170 W continuous input power designs. |
| Peak Current Limit Tolerance | <±5% - ensures consistent transformer primary current clamping across temperature, reducing safety margin overhead. |
| Standby Power | <100 mW @ no load - meets Energy Star v3.0 and EU CoC Tier 2 requirements without auxiliary winding or external circuitry. |
| Max Duty Cycle | 72% - sets minimum achievable turns ratio and maximum duty-bound transformer reset capability. |
| Blanking Window | Adjustable - prevents false triggering of current limit during MOSFET turn-on spikes under high-load transients. |
Pinout & Package
ICE3B3565P uses the PG-TO220-6-47 package: isolated drain tab, 6-pin through-hole layout with 2.7 K/W thermal resistance to ambient (with external heatsink), and creepage distance compliant with IEC 60950-1 for reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Drain) | High-side power switch drain | Directly connects to primary winding of flyback transformer; carries full mains-referenced 650 V blocking voltage. |
| 3 (CS) | Current sense input | Monitors source voltage of integrated CoolMOS™ to implement cycle-by-cycle peak current limiting. |
| 4 (GND) | Controller ground reference | Low-noise analog/digital return for internal circuits; separate from power ground in PCB layout best practice. |
| 5 (VCC) | Controller supply input | Accepts 10–25 V DC; powers internal logic and gate driver; includes UVLO with hysteresis. |
| 6 (SoftS) | Soft-start timing node | Connects external capacitor to set ramp-up time for PWM duty cycle, preventing inrush current overshoot. |
| 7 (FB) | Feedback error amplifier input | Receives optocoupler signal to regulate output voltage; controls Active Burst Mode entry/exit threshold. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 650 V CoolMOS™ + controller | Eliminates external HV MOSFET and gate driver, reducing BOM count and layout complexity in compact adapters. |
| Active Burst Mode | Maintains controller activity during light load, enabling sub-100 mW standby while preserving fast transient response. |
| Auto Restart Protection Suite | Five independent fault responses (VCC UVLO, overtemp, overvoltage, overload, open-loop) prevent latch-up and enable field recovery. |
| Precise peak current limiting | <±5% tolerance ensures consistent transformer sizing and eliminates need for external current-sense resistor calibration. |
| Adjustable blanking window | Allows tuning to suppress turn-on spikes during high-current load jumps without compromising short-circuit protection speed. |
Applications
| USB-C PD Adapters | Industrial AC/DC Power Supplies |
|---|---|
|
Use Scenario: 65 W USB-C Power Delivery adapter with universal AC input and no-auxiliary-winding design. IC Role / Device Role / Timing Role: Primary-side PWM controller and power switch in discontinuous conduction mode (DCM) flyback topology. Use Value: Integrated 650 V CoolMOS™ and Active Burst Mode achieve <100 mW no-load consumption while supporting dynamic load steps from 0 to 65 W within 100 µs. |
Use Scenario: 120 W open-frame industrial power supply for PLC I/O modules requiring high reliability and wide input range. IC Role / Device Role / Timing Role: Main controller in quasi-resonant flyback with programmable soft-start and auto-restart on overtemperature events. Use Value: Isolated drain package and 2.7 K/W RthCA support operation at 75°C ambient without forced air, meeting EN 62368-1 creepage requirements. |
| LED Driver Power Stages | Medical Auxiliary Power Supplies |
|
Use Scenario: Constant-voltage LED driver for commercial lighting with Class II isolation and surge immunity. IC Role / Device Role / Timing Role: Primary-side controller implementing constant voltage regulation via opto-coupled feedback and valley-switching timing. Use Value: Adjustable blanking window prevents false current-limit trips during LED string short-circuit events, improving system robustness. |
Use Scenario: 24 V/2 A auxiliary power supply for patient-monitor front-end electronics with reinforced insulation. IC Role / Device Role / Timing Role: Safety-critical controller enforcing dual overvoltage and open-loop protection before delivering power to downstream DC/DC stages. Use Value: Auto Restart Mode on output overvoltage ensures automatic recovery after transient faults without manual reset, complying with IEC 60601-1 clause 15.3.2. |
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 |
|---|---|---|---|
| ICE3B3565I | Same electrical specs but PG-TO220-6-46 package with non-isolated drain tab. | Requires insulated mounting hardware for reinforced insulation; lower creepage vs. ICE3B3565P's isolated drain. | Select when mechanical compatibility with legacy I2Pak footprints is required and creepage can be managed externally. |
| ICE3B3065P | RDS(on) = 2.10 Ω, max input power = 128 W @ 230 VAC - lower conduction efficiency and thermal headroom. | Suitable for 90–100 W designs where cost sensitivity outweighs 170 W capability. | Choose for cost-optimized mid-power adapters where 170 W headroom is unnecessary and thermal margin is sufficient. |
Compared with ICE3B3565I and ICE3B3065P, the ICE3B3565P uniquely combines isolated drain packaging for simplified safety compliance, 1.55 Ω RDS(on) for higher efficiency at full load, and identical protection architecture-making it optimal for new 120–170 W medical and industrial designs demanding minimal external components.
Availability
ICE3B3565P is available at Aetrix Electronics and suitable for USB-C PD adapters, industrial AC/DC power supplies, LED driver power stages, and medical auxiliary power supplies requiring stable component supply and long-term lifecycle support.
Supply support for ICE3B3565P 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 certification to ISO 9001 and IATF 16949.
The CoolSET™-F3 product line targets cost-sensitive, high-efficiency offline SMPS designs requiring integrated HV switching and ultra-low standby power-specifically optimized for adapter, lighting, and industrial auxiliary supply applications.
FAQ
What is the maximum continuous input power rating for ICE3B3565P?
The ICE3B3565P supports up to 170 W continuous input power at 230 VAC ±15% in an open-frame design with external heatsink (RthCA = 2.7 K/W) and ambient temperature of 50°C. This rating assumes junction temperature ≤125°C and accounts for conduction and switching losses of the integrated 1.55 Ω CoolMOS™ transistor at 67 kHz.
Does ICE3B3565P require an auxiliary winding for VCC supply?
No. ICE3B3565P integrates a 650 V startup cell that draws current directly from the rectified AC line during initial power-up, eliminating the need for an auxiliary winding. Once the converter starts, VCC is maintained by energy transferred from the transformer auxiliary winding-but startup remains functional even if that winding fails or is omitted in no-aux designs.
How does the adjustable blanking window improve system reliability?
The blanking window disables current-sense comparator input for a user-defined duration after each PWM pulse onset, suppressing false triggering caused by parasitic ringing or transformer leakage spikes during MOSFET turn-on. This prevents unintended Auto Restart or premature current limiting during high-load transients-critical for systems experiencing rapid step loads like motor drivers or digital loads.
Can ICE3B3565P be used in quasi-resonant (QR) flyback topologies?
Yes. While optimized for fixed-frequency DCM flyback, ICE3B3565P's current-mode architecture and fast load-step response allow implementation in QR mode using external timing circuitry on the FB pin. However, it lacks dedicated zero-current detection (ZCD) input-so valley-switching must be approximated via feedback slope analysis rather than direct drain voltage sensing.
ICE3B3565P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Output Isolation:
- -
- Internal Switch(s):
- -
- Voltage - Breakdown:
- -
- Topology:
- -
- Voltage - Start Up:
- -
- Voltage - Supply (Vcc/Vdd):
- -
- Duty Cycle:
- -
- Frequency - Switching:
- -
- Power (Watts):
- -
- Fault Protection:
- -
- Control Features:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
- Mounting Type:
- -
ICE3B3565P FAQ
1.How can I place an order for ICE3B3565P through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE3B3565P 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 ICE3B3565P reliable?
The price and inventory of ICE3B3565P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B3565P is usually 5 days.
3.What payment methods are accepted for ICE3B3565P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B3565P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE3B3565P?
ICE3B3565P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE3B3565P 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 ICE3B3565P?
For technical support, including ICE3B3565P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B3565P requirements.
6.How does Aetrix verify that ICE3B3565P is sourced from the original manufacturer or authorized distributors?
All ICE3B3565P 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 ICE3B3565P meets industry standards.
7.What is the process for return or replacement of ICE3B3565P?
All ICE3B3565P units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B3565P, 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 ICE3B3565P part is unused and in its original packaging.
Return procedure for ICE3B3565P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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