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Infineon Technologies ICE3A1065LJHKLA1
- Part No.:
- ICE3A1065LJHKLA1
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICE3A1065LJHKLA1.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,059
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Product details
Overview
ICE3A1065LJ from Infineon Technologies is an off-line SMPS current mode controller integrating a 650V depletion-mode CoolMOS™ power transistor and high-voltage startup cell in a single PG-DIP-8 package. It delivers fixed 100kHz switching, latched-off protection for overtemperature/overvoltage/short winding, frequency jitter for EMI reduction, and Active Burst Mode achieving <100mW standby power at 270VAC - deployed in low-cost AC/DC adapters and auxiliary power supplies.
For engineers reviewing the ICE3A1065LJ datasheet, ICE3A1065LJ pinout, ICE3A1065LJ application, or ICE3A1065LJ equivalent, key selection considerations include its integrated 650V CoolMOS™ drain-source capability, built-in soft start (20ms), ±5% peak current limit tolerance, BiCMOS VCC range (10.5–26V), and dual blanking modes for load-jump reliability.
Technical Context
The ICE3A1065LJ implements a current-mode PWM architecture with internal oscillator, leading-edge blanking, propagation delay compensation, and precise peak current sensing referenced to the CS pin. Its control unit manages three distinct operating states: Active Burst Mode (for ultra-low standby), Latched Off Mode (non-recoverable shutdown on critical faults), and Auto Restart Mode (cyclic recovery under overload/open-loop conditions).
Power management integrates a 650V startup cell directly connected to the Drain pin - eliminating external startup resistors - and features undervoltage lockout (UVLO) with turn-on at 18V and turn-off at 6.23V. The BiCMOS process enables wide VCC operation and supports soft driving plus frequency jitter to suppress conducted EMI without increasing input filter complexity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 100 kHz - ensures predictable transformer design and EMI profile; jittered to spread spectral energy. |
| CoolMOS™ Breakdown Voltage | 650 V - supports universal AC input (85–265 VAC) with margin for line surges and reflected transients. |
| Peak Current Limit Tolerance | ±5% - enables accurate power limiting across temperature, reducing transformer and diode oversizing. |
| VCC Operating Range | 10.5 V to 26 V - accommodates wide auxiliary supply variation; BiCMOS process enables extended upper limit. |
| Standby Power | <100 mW at 270 VAC no-load - achieved via Active Burst Mode with immediate load-jump response and <1% output ripple. |
| Soft Start Time | 20 ms - internally fixed; eliminates external RC network, simplifying BOM and improving startup reproducibility. |
| Protection Modes | Latched Off (reset only by AC recycle) + Auto Restart (cyclic recovery) - provides tiered fault handling for safety-critical and robustness-critical failures. |
Pinout & Package
Package: PG-DIP-8 (Plastic Dual-In-Line Package, 8-pin, through-hole). Pins 4 and 5 are internally shorted as common Drain connection for the integrated CoolMOS™.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 BL | Blanking & External Latch Enable | Extends auto-restart blanking window via external capacitor; pulls low (<0.1 V) to force latched shutdown - adds system-level fault override. |
| 2 FB | Feedback Input | Accepts optocoupler signal for primary-side regulation; controls duty cycle and triggers Active Burst Mode during light load. |
| 3 CS | Current Sense Input | Senses source voltage of integrated CoolMOS™; triggers immediate gate turn-off at internal threshold for cycle-by-cycle current limiting. |
| 4 & 5 Drain | CoolMOS™ Drain Terminal | High-side switch node; connects directly to bulk capacitor and transformer primary; rated 650 V avalanche rugged. |
| 6 n.c. | No Connection | Unbonded pin; must remain unconnected per layout guidelines to avoid parasitic coupling or latch-up risk. |
| 7 VCC | Controller Supply | Power rail for internal logic and gate driver; UVLO thresholds (18 V on / 6.23 V off) ensure reliable startup and brownout recovery. |
| 8 GND | Signal & Power Ground | Common reference for CS, FB, BL, and internal bias; requires low-inductance layout to maintain current-sense accuracy and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 650V Depletion CoolMOS™ + Startup Cell | Eliminates external HV startup resistor and discrete MOSFET, reducing component count and board space in flyback adapters. |
| Active Burst Mode with Full Regulation | Maintains closed-loop feedback via same optocoupler during burst; enables fast load-step recovery and stable Vout without secondary-side controller. |
| Built-in Extendable Blanking Window | Base 20 ms blanking time extendable via external capacitor on BL pin - prevents false auto-restart during transient overloads like motor startup. |
| Frequency Jitter & Soft Driving | Reduces peak EMI amplitude by spreading switching spectrum; soft gate drive minimizes dv/dt-induced ringing and stress on CoolMOS™. |
| Precise Peak Current Limit (±5%) | Enables consistent power delivery across line/load/temperature; reduces transformer copper loss and secondary diode conduction loss. |
Applications
| USB Wall Adapters | Set-Top Box Standby Supplies |
|---|---|
|
Use Scenario: Compact 5–12 W AC/DC adapter powering USB-charged devices with strict EU CoC Tier 2 and DOE Level VI efficiency requirements. IC Role / Device Role / Timing Role: Primary-side current-mode controller managing flyback topology, regulating output via optocoupler feedback, and entering Active Burst Mode at no load. Use Value: Achieves <100 mW standby consumption without auxiliary controllers, while maintaining <1% output ripple during burst-to-PWM transitions. |
Use Scenario: Auxiliary 3.3 V/5 V supply for digital TV platforms requiring always-on functionality and rapid wake-from-standby response. IC Role / Device Role / Timing Role: Integrated SMPS controller with latched-off protection for overvoltage events caused by secondary-side regulator failure. Use Value: Prevents catastrophic failure via non-recoverable shutdown when Vout exceeds safe limits - meeting IEC 62368-1 hazard mitigation requirements. |
| LED Driver Auxiliary Supplies | Industrial Control Panel PSUs |
|
Use Scenario: Low-power auxiliary supply for constant-current LED driver ICs in commercial lighting systems operating across 85–265 VAC input. IC Role / Device Role / Timing Role: Off-line controller providing isolated bias for gate drivers and analog front-ends; uses frequency jitter to meet CISPR-15 Class B conducted EMI limits. Use Value: Reduces input filter component count by >30% compared to fixed-frequency controllers, lowering BOM cost and footprint. |
Use Scenario: Embedded power supply in programmable logic controllers (PLCs) where long-term reliability and fault containment are critical. IC Role / Device Role / Timing Role: Primary-side controller with external latch enable (BL pin) tied to system watchdog - enabling coordinated shutdown during firmware fault detection. Use Value: Adds hardware-enforced fail-safe layer beyond software-based monitoring, satisfying SIL-2 functional safety architecture requirements. |
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 |
|---|---|---|---|
| ICE3A1065J | Same die, PG-DSO-8 package (surface-mount); no integrated startup cell - requires external HV resistor. | Preferred for automated SMT assembly; unsuitable for designs targeting minimal standby power without added components. | Select ICE3A1065J only if board space constraints prohibit DIP-8 and external startup circuitry is acceptable. |
| ICE3B0565J | Lower power rating (16 W vs. 32 W), no Active Burst Mode, fixed 65 kHz frequency, no frequency jitter. | Targeted at cost-sensitive <10 W adapters where EMI filtering budget is higher and standby <100 mW is not required. | Choose ICE3B0565J only for legacy designs or applications with relaxed efficiency/EMI targets and lower output power needs. |
Compared with ICE3A1065J and ICE3B0565J, the ICE3A1065LJ uniquely combines through-hole PG-DIP-8 packaging, integrated 650V startup, Active Burst Mode, and frequency jitter - making it optimal for high-reliability, low-standby, manually assembled or repair-friendly AC/DC supplies up to 32 W.
Availability
ICE3A1065LJ is available at Aetrix Electronics and suitable for USB wall adapters, set-top box standby supplies, and industrial control panel PSUs requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.
Supply support for ICE3A1065LJ 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 - including ICE3A1065LJ - was engineered specifically for cost-sensitive, high-efficiency off-line SMPS in the 5–32 W range, emphasizing ultra-low standby power, integrated high-voltage power stages, and robust protection architecture.
FAQ
What is the purpose of the BL pin on the ICE3A1065LJ?
The BL pin serves two confirmed functions: (1) extending the internal 20 ms blanking window for Auto Restart Mode using an external capacitor to ground, preventing false triggering during high-current transients; and (2) acting as an external latch enable - pulling BL below 0.1 V forces immediate latched shutdown, independent of internal fault detection. This dual role supports both reliability tuning and system-level safety interlocks.
Does the ICE3A1065LJ require an external startup resistor?
No. The ICE3A1065LJ integrates a 650 V startup cell connected directly to the Drain pin, eliminating the need for an external high-voltage startup resistor. This feature reduces component count, improves efficiency at light loads, and simplifies PCB layout. The startup cell automatically disables once VCC reaches the UVLO turn-on threshold of 18 V.
How does Active Burst Mode affect output voltage ripple?
In Active Burst Mode, the ICE3A1065LJ maintains full closed-loop regulation via the FB pin and the same optocoupler used in normal PWM operation. This ensures immediate response to load steps and keeps output voltage ripple below 1%, even during burst-to-PWM transitions - unlike basic burst modes that suspend feedback control and cause larger regulation deviations.
What protection mechanisms trigger Latched Off Mode versus Auto Restart Mode?
Latched Off Mode activates only for critical, potentially destructive faults: overtemperature (>150°C), overvoltage at FB (indicating secondary-side failure), or short winding (excessive current sensed at CS). It requires AC power recycle to reset. Auto Restart Mode engages for non-catastrophic but persistent faults - such as overload, open-loop feedback, or VCC undervoltage - cycling on/off until the fault clears.
ICE3A1065LJHKLA1 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):
- 10.5V ~ 26V
- Duty Cycle:
- 75%
- Frequency - Switching:
- 100kHz
- Power (Watts):
- 32 W
- Fault Protection:
- Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage
- Control Features:
- -
- Operating Temperature:
- -25°C ~ 130°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- PG-DIP-8
- Mounting Type:
- Through Hole
ICE3A1065LJHKLA1 FAQ
1.How can I place an order for ICE3A1065LJHKLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE3A1065LJHKLA1 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 ICE3A1065LJHKLA1 reliable?
The price and inventory of ICE3A1065LJHKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3A1065LJHKLA1 is usually 5 days.
3.What payment methods are accepted for ICE3A1065LJHKLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3A1065LJHKLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE3A1065LJHKLA1?
ICE3A1065LJHKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE3A1065LJHKLA1 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 ICE3A1065LJHKLA1?
For technical support, including ICE3A1065LJHKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3A1065LJHKLA1 requirements.
6.How does Aetrix verify that ICE3A1065LJHKLA1 is sourced from the original manufacturer or authorized distributors?
All ICE3A1065LJHKLA1 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 ICE3A1065LJHKLA1 meets industry standards.
7.What is the process for return or replacement of ICE3A1065LJHKLA1?
All ICE3A1065LJHKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3A1065LJHKLA1, 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 ICE3A1065LJHKLA1 part is unused and in its original packaging.
Return procedure for ICE3A1065LJHKLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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