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Infineon Technologies ICE3B0365JXKLA1
- Part No.:
- ICE3B0365JXKLA1
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICE3B0365JXKLA1.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,169
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Product details
Overview
ICE3B0365JXKLA1 from Infineon Technologies is an integrated off-line SMPS current-mode controller with built-in 650V CoolMOS® power transistor and startup cell in PG-DIP-8 package, operating at fixed 67 kHz switching frequency with ±5% peak current limit tolerance, active burst mode for <100 mW standby power, and frequency jittering for EMI reduction - deployed in low-power AC/DC adapters and auxiliary supplies.
For engineers reviewing the ICE3B0365JXKLA1 datasheet, ICE3B0365JXKLA1 pinout, ICE3B0365JXKLA1 application, or ICE3B0365JXKLA1 equivalent, key selection considerations include integrated high-voltage switch rating (650 V), fixed-frequency jittered PWM control, active burst mode behavior under light load, and thermal/auto-restart protection architecture.
Technical Context
This IC implements a BiCMOS-based current-mode PWM controller with internal 650 V CoolMOS® drain-source path, fixed 67 kHz oscillator with jitter modulation, and precise peak-current sensing via external source resistor. The SoftS pin serves triple function: soft-start timing, adjustable blanking window for load-jump immunity, and frequency jitter control.
It features auto-restart protection for overtemperature, VCC undervoltage (10.3 V turn-off), output open-loop, overload, and overvoltage conditions. Active burst mode maintains feedback loop responsiveness while reducing no-load power to <100 mW at 270 VAC input, with output ripple <1% and immediate load-jump recovery.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 67 kHz fixed with jitter - reduces EMI peak emissions without external frequency programming. |
| Integrated MOSFET Rating | 650 V avalanche-rugged CoolMOS® - enables direct connection to universal AC input (85–265 VAC) without external HV starter. |
| Peak Current Limit Tolerance | ±5% overall - ensures consistent power delivery across temperature and process variation, minimizing transformer overdesign. |
| Standby Power | <100 mW at 270 VAC, no load - achieved via active burst mode with continuous feedback monitoring and optocoupler reuse. |
| VCC Operating Range | 10.3 V to 26 V - supports wide auxiliary supply variation in CV/CC secondary-side regulated designs. |
| Max Duty Cycle | 75% - provides sufficient on-time margin for flyback transformer design under low-line conditions. |
| Startup Current | 1.05 mA from Drain - eliminates external high-voltage startup resistor and associated losses. |
Pinout & Package
Package: PG-DIP-8 (8-pin dual in-line plastic package); pins 4 and 5 internally shorted as common Drain terminal; pin 6 is NC (not connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SoftS) | Soft-start / Auto-restart / Jitter control | External capacitor sets soft-start ramp time, blanking window duration, and jitter period - no separate components needed. |
| 2 (FB) | Feedback input | Accepts optocoupler signal to regulate output voltage; controls active burst mode entry/exit and PWM duty cycle. |
| 3 (CS) | Current sense input | Monitors voltage across external source resistor to implement precise peak-current limiting and current-mode control. |
| 4 & 5 (Drain) | Integrated CoolMOS® drain | High-side power switch output; rated 650 V; pins internally shorted for robust high-current routing. |
| 6 (N.C.) | No connection | Unused pin - must remain unconnected per datasheet; no internal bonding or circuitry. |
| 7 (VCC) | Controller supply | BiCMOS bias rail; UVLO thresholds at 18 V (turn-on) and 10.3 V (turn-off); powers all internal logic and gate driver. |
| 8 (GND) | Signal and power ground | Common reference for CS, FB, SoftS, and internal comparators; requires low-inductance layout near CS resistor. |
Key Features
| Feature | Design Value |
|---|---|
| Active Burst Mode | Maintains closed-loop regulation at no load with <100 mW consumption and immediate response to load steps - no output blackout. |
| Integrated Startup Cell | 1.05 mA Drain-sourced startup current eliminates external HV resistor, reducing BOM count and improving light-load efficiency. |
| Adjustable Blanking Window | Programmed via SoftS capacitor to suppress false overcurrent trips during transient load jumps - improves system reliability. |
| Frequency Jittering | Modulates 67 kHz carrier to spread EMI energy across spectrum - meets Class B conducted emission limits without added filtering. |
| Auto-Restart Protection | Enters safe low-power state on overtemperature, VCC UVLO, open-loop, overload, or overvoltage - recovers automatically when fault clears. |
Applications
| USB Wall Adapters | Smart Home Sensor Power Supplies |
|---|---|
|
Use Scenario: Compact 5 V/1 A AC/DC adapter powering USB peripherals in residential environments. IC Role / Device Role / Timing Role: Primary-side PWM controller and integrated 650 V switch managing flyback conversion with CV/CC regulation. Use Value: Active burst mode achieves <100 mW no-load consumption meeting DOE Level VI and EU CoC Tier 2 requirements. |
Use Scenario: Low-power 3.3 V/100 mA supply for battery-free Zigbee/Z-Wave sensors in HVAC or lighting nodes. IC Role / Device Role / Timing Role: Standalone off-line controller enabling maintenance-free operation from AC mains without external HV startup network. Use Value: Integrated 650 V CoolMOS® and startup cell reduce component count by ≥3 vs discrete solutions, lowering PCB area and cost. |
| LED Driver Auxiliary Supplies | Industrial Control Panel Logic Power |
|
Use Scenario: 12 V/200 mA auxiliary supply for microcontroller and communication ICs in constant-current LED drivers. IC Role / Device Role / Timing Role: Isolated flyback controller providing stable bias rail independent of main LED output regulation. Use Value: 67 kHz fixed frequency with jitter simplifies EMI filter design; ±5% current limit tolerance allows smaller transformer core selection. |
Use Scenario: 5 V/500 mA isolated supply for PLC I/O modules operating in industrial environments with wide ambient temperature range. IC Role / Device Role / Timing Role: Robust primary-side controller with auto-restart protection against sustained overloads and brownouts. Use Value: Thermal shutdown and auto-restart prevent latch-up during field faults; 10.3–26 V VCC range accommodates degraded auxiliary winding voltages. |
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 |
|---|---|---|---|
| ICE3B0565J | Lower RDS(on) (4.70 W conduction loss vs 6.45 W), higher max output power (25 W vs 22 W at 230 VAC) | Suitable for 15–25 W adapters requiring higher efficiency at mid-load; same pinout and feature set | Select when >20 W continuous output or lower thermal stress is required; identical layout compatibility. |
| ICE3B1565J | Higher RDS(on) (1.70 W conduction loss), optimized for 42 W max output at 230 VAC | Targeted at higher-power adapters (30–42 W) with tighter thermal constraints; shares same DIP-8 footprint | Choose for cost-sensitive 36 W designs where peak efficiency at full load outweighs light-load optimization. |
Compared with ICE3B0565J and ICE3B1565J, ICE3B0365JXKLA1 delivers optimal balance of standby efficiency (<100 mW), thermal headroom, and BOM simplicity for 5–22 W universal-input adapters - making it preferred for space-constrained consumer electronics.
Availability
ICE3B0365JXKLA1 is available at Aetrix Electronics and suitable for USB wall adapters, smart home sensor power supplies, and LED driver auxiliary supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for ICE3B0365JXKLA1 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.
This part belongs to the CoolSET®-F3 family - designed specifically for cost-effective, low-component-count off-line SMPS in the 5–42 W range, emphasizing ultra-low standby power, integrated HV switching, and robust protection.
FAQ
What is the purpose of the SoftS pin in ICE3B0365JXKLA1?
The SoftS pin performs three critical functions: (1) sets soft-start ramp time via external capacitor to limit inrush current; (2) defines blanking window duration to suppress false overcurrent trips during rapid load transients; and (3) controls frequency jitter period to reduce EMI peaks. All three are adjusted by a single capacitor to ground - no additional resistors or diodes required.
Does ICE3B0365JXKLA1 require an external startup resistor?
No. ICE3B0365JXKLA1 integrates a high-voltage startup cell connected directly to the Drain pin, delivering 1.05 mA charging current to the VCC capacitor. This eliminates the need for an external high-voltage resistor, reducing component count, power loss, and PCB space - confirmed in Section 3.3 of the official Infineon datasheet (v2.9, 2013).
How does active burst mode differ from traditional burst mode in this IC?
Unlike conventional burst modes that disable the controller entirely, ICE3B0365JXKLA1's active burst mode keeps the internal error amplifier and feedback comparator continuously operational. This enables real-time optocoupler monitoring and immediate PWM resumption upon load step - eliminating output voltage dropout and maintaining <1% ripple, as verified in functional description Section 3.6.2.
What protection features are implemented in ICE3B0365JXKLA1?
ICE3B0365JXKLA1 implements five auto-restart protections: overtemperature (via internal thermal sensor), VCC undervoltage (10.3 V cutoff), output open-loop, overload, and VCC overvoltage. Each triggers controlled shutdown and periodic restart attempts until fault clearance - ensuring system safety without external supervision circuits, per Section 3.6.3.1 of the datasheet.
ICE3B0365JXKLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolMOS™, CoolSET™F3
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Isolation:
- Isolated
- Internal Switch(s):
- Yes
- Voltage - Breakdown:
- 650V
- Topology:
- Flyback
- Voltage - Start Up:
- 18 V
- Voltage - Supply (Vcc/Vdd):
- 10.3V ~ 26V
- Duty Cycle:
- 75%
- Frequency - Switching:
- 67kHz
- Power (Watts):
- 22 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-8
- Mounting Type:
- Through Hole
ICE3B0365JXKLA1 FAQ
1.How can I place an order for ICE3B0365JXKLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE3B0365JXKLA1 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 ICE3B0365JXKLA1 reliable?
The price and inventory of ICE3B0365JXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B0365JXKLA1 is usually 5 days.
3.What payment methods are accepted for ICE3B0365JXKLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B0365JXKLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE3B0365JXKLA1?
ICE3B0365JXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE3B0365JXKLA1 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 ICE3B0365JXKLA1?
For technical support, including ICE3B0365JXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B0365JXKLA1 requirements.
6.How does Aetrix verify that ICE3B0365JXKLA1 is sourced from the original manufacturer or authorized distributors?
All ICE3B0365JXKLA1 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 ICE3B0365JXKLA1 meets industry standards.
7.What is the process for return or replacement of ICE3B0365JXKLA1?
All ICE3B0365JXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B0365JXKLA1, 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 ICE3B0365JXKLA1 part is unused and in its original packaging.
Return procedure for ICE3B0365JXKLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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