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

Infineon Technologies ICE3B1565JFKLA1

Name: ICE3B1565JFKLA1
Brand: Infineon Technologies
SKU: ICE3B1565JFKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE3B1565JFKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

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

Datasheet:: ICE3B1565JFKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 8DIP

Quantity:: RFQ Add To RFQ list

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Product details

Overview

ICE3B1565JFKLA1 from Infineon Technologies is an off-line SMPS current-mode controller IC integrating a 650V CoolMOS® power transistor and startup cell in a PG-DIP-8 package, operating at 67 kHz with 1.70 W typical standby power, ±5% peak current limit tolerance, and frequency jittering for EMI reduction - used in low-power AC/DC adapters and battery chargers.

For engineers reviewing the ICE3B1565JFKLA1 datasheet, ICE3B1565JFKLA1 pinout, ICE3B1565JFKLA1 application, or ICE3B1565JFKLA1 equivalent, key selection criteria include integrated high-voltage switching capability, active burst mode for <100 mW no-load power, adjustable blanking window for load-jump reliability, and auto-restart protection modes for robust offline SMPS design.

Technical Context

The ICE3B1565JFKLA1 implements BiCMOS-based current-mode PWM control with fixed 67 kHz oscillator and internal leading-edge blanking. Its integrated 650V CoolMOS® features avalanche ruggedness and switchable startup cell connected directly to Drain, eliminating external startup resistors.

Control logic includes active burst mode triggered by FB voltage, soft-start via external capacitor on SoftS, and auto-restart protection for overtemperature, VCC undervoltage, overload, open-loop, and overvoltage faults - all managed without external timing components.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	650 V - Enables direct connection to universal AC input (85–265 VAC) without pre-regulator
f_OSC	67 kHz - Fixed switching frequency simplifies EMI filter design and transformer sizing
Standby Power	1.70 W @ 230 VAC - Meets stringent no-load efficiency requirements for energy-efficient adapters
Peak Current Limit Tolerance	±5% - Ensures consistent power delivery across temperature and process variation
V_CC Range	10.3 V to 26 V - Supports wide auxiliary supply range, compatible with CV/CC secondary-side regulation
Duty Cycle Max	75% - Allows sufficient off-time for transformer reset in discontinuous conduction mode
Startup Current	1.05 mA - Integrated startup cell draws current directly from Drain, removing need for external resistor

Pinout & Package

ICE3B1565JFKLA1 is housed in a PG-DIP-8 package with creepage/clearance optimized for reinforced insulation in AC/DC applications. Pins 4 and 5 are internally shorted to handle high-voltage drain current routing.

Pin/Terminal	Circuit Role	Design Meaning
1 SoftS	Soft-start timing / Auto-restart detection / Frequency jitter control	External capacitor sets soft-start ramp, blanking window duration, and jitter period - single-pin multi-function reduces BOM count
2 FB	Feedback input	Regulates output voltage via optocoupler; controls entry/exit of active burst mode based on voltage level
3 CS	Current sense input	Senses source voltage of integrated CoolMOS®; triggers immediate shutdown at precise current threshold
4 & 5 Drain	High-voltage drain node	Internally shorted pins connect to 650V CoolMOS® drain - enables direct AC line connection and high-voltage switching
6 N.C.	No connection	Unbonded pad; must remain unconnected per design - no routing or grounding allowed
7 VCC	Controller supply	Accepts 10.3–26 V bias; internal UVLO (18 V on / 10.3 V off) manages startup and fault recovery
8 GND	Signal and power ground	Common reference for control circuitry and current-sense comparator - requires low-impedance PCB return path

Key Features

Feature	Design Value
Active Burst Mode	Reduces no-load power to <100 mW while maintaining full feedback loop responsiveness and <1% output ripple
Integrated Startup Cell	Draws 1.05 mA from Drain to charge VCC capacitor - eliminates external high-voltage startup resistor and associated losses
Adjustable Blanking Window	Set via SoftS capacitor to suppress false overcurrent trips during fast load transients - improves system reliability without extra components
Frequency Jittering	Modulates switching frequency around 67 kHz center to spread EMI energy and ease compliance with CISPR 22/32 Class B limits
Auto-Restart Protection	Enters latched-off state for overtemperature, VCC UVLO, overload, open-loop, and overvoltage - recovers automatically when fault clears

Applications

USB-C Wall Adapter

Smartphone Charger

Use Scenario: Compact 5–20 W AC/DC adapter delivering regulated 5–9 V USB PD output with universal input.

IC Role / Device Role / Timing Role: Primary-side controller managing PWM duty cycle, current limiting, and burst-mode transitions via FB feedback.

Use Value: Integrated CoolMOS® and startup cell reduce component count by ≥3 parts; active burst mode ensures <100 mW no-load consumption per EU CoC Tier 2.

Use Scenario: Cost-sensitive 5–10 W OEM smartphone charger with fixed 5 V output and 230 VAC mains compatibility.

IC Role / Device Role / Timing Role: Off-line current-mode controller providing fixed-frequency PWM, precise peak-current protection, and auto-restart safety.

Use Value: ±5% current limit tolerance allows smaller transformer and secondary diode; DIP-8 package supports automated through-hole assembly.

LCD Monitor Power Supply

IoT Gateway AC/DC Module

Use Scenario: 24–36 W auxiliary power supply for LCD panel logic and backlight drivers, operating across 85–265 VAC.

IC Role / Device Role / Timing Role: Primary-side SMPS controller implementing CV/CC regulation with secondary-side optocoupler feedback.

Use Value: 26 V VCC range accommodates auxiliary winding variations; frequency jittering meets EN 55032 Class B conducted EMI limits.

Use Scenario: 5–15 W isolated power module for industrial IoT gateways requiring long-term reliability and low standby draw.

IC Role / Device Role / Timing Role: High-integration controller enabling compact board layout with minimal external passives and built-in safety protections.

Use Value: Auto-restart mode prevents thermal runaway during sustained overload; RoHS-compliant Pb-free plating supports global compliance.

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
ICE3B1565G	Same functionality but in PG-TO220-7 package; lacks integrated startup cell - requires external HV startup resistor	Higher thermal dissipation needed; less suitable for ultra-low standby designs	Select when higher power derating or heatsink mounting is required; not drop-in for DIP-8 footprint
ICE2QS03G	Quasi-resonant controller with variable frequency; no integrated MOSFET - external 650V FET required	Better light-load efficiency via QR operation; higher BOM count and layout complexity	Choose for higher-efficiency >15 W designs where EMI margin allows variable-frequency operation

Compared with ICE3B1565G and ICE2QS03G, ICE3B1565JFKLA1 delivers lowest system cost and smallest footprint for ≤20 W adapters due to monolithic integration, while maintaining superior no-load performance and simplified safety certification.

Availability

ICE3B1565JFKLA1 is available at Aetrix Electronics and suitable for USB-C wall adapters, smartphone chargers, and LCD monitor auxiliary supplies requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE3B1565JFKLA1 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, low-to-mid power AC/DC converters - designed to integrate HV switching, control logic, and protection into single-package solutions for adapter and charger applications.

FAQ

What is the purpose of the SoftS pin in ICE3B1565JFKLA1?

The SoftS pin serves three integrated functions: soft-start timing (via external capacitor), adjustable blanking window for high-load-jump immunity, and frequency jitter control. During startup, it ramps up to enable gradual PWM activation; during operation, its capacitor value sets both blanking duration and jitter modulation depth - eliminating separate timing components.

Does ICE3B1565JFKLA1 require an external startup resistor?

No. ICE3B1565JFKLA1 integrates a high-voltage startup cell connected directly to the Drain pin, sourcing 1.05 mA to charge the VCC capacitor. This eliminates the need for an external high-voltage startup resistor, reducing component count, power loss, and board space - confirmed in Section 3.3 of the official datasheet.

How does active burst mode reduce standby power below 100 mW?

Active burst mode dynamically disables the main PWM while keeping critical comparators and feedback monitoring active. The controller wakes periodically to sample FB voltage and deliver short power bursts only when needed - achieving <100 mW no-load consumption at 270 VAC, as validated in Table 1 of the datasheet under "Standby Power" specifications.

Can ICE3B1565JFKLA1 be used in continuous conduction mode (CCM)?

Yes - though optimized for discontinuous conduction mode (DCM) in low-power adapters, ICE3B1565JFKLA1 supports CCM operation via proper transformer design and peak current limit setting. Its 75% max duty cycle and propagation delay compensation ensure stable current-mode control across conduction modes, as detailed in Section 3.5.2 of the datasheet.

ICE3B1565JFKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™F3

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

Packaging:: Bulk

Product Status:: Last Time Buy

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):: 42 W

Fault Protection:: Current Limiting, Open Circuit, 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

ICE3B1565JFKLA1 FAQ

1.How can I place an order for ICE3B1565JFKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE3B1565JFKLA1 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 ICE3B1565JFKLA1 reliable?

The price and inventory of ICE3B1565JFKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3B1565JFKLA1 is usually 5 days.

3.What payment methods are accepted for ICE3B1565JFKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3B1565JFKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE3B1565JFKLA1?

ICE3B1565JFKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE3B1565JFKLA1 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 ICE3B1565JFKLA1?

For technical support, including ICE3B1565JFKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3B1565JFKLA1 requirements.

6.How does Aetrix verify that ICE3B1565JFKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE3B1565JFKLA1 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 ICE3B1565JFKLA1 meets industry standards.

7.What is the process for return or replacement of ICE3B1565JFKLA1?

All ICE3B1565JFKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3B1565JFKLA1, 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 ICE3B1565JFKLA1 part is unused and in its original packaging.

Return procedure for ICE3B1565JFKLA1:

1.Submit a request within 90 days.

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

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