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Infineon Technologies ICE3BS02
- Part No.:
- ICE3BS02
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICE3BS02.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,555
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Product details
Overview
ICE3BS02 from Infineon Technologies is a fixed-frequency (67 kHz), current-mode off-line SMPS controller with integrated 500 V startup cell, 72% max duty cycle, ±5% peak current limit tolerance, and active burst mode enabling <100 mW standby power in AC/DC adapters for TVs and set-top boxes.
For engineers reviewing the ICE3BS02 datasheet, ICE3BS02 pinout, ICE3BS02 application, or ICE3BS02 equivalent, this controller's integrated HV startup, adjustable blanking window, auto-restart protection modes, and DIP-8 package are critical for low-component-count, safety-compliant flyback designs operating across 85–270 VAC input.
Technical Context
The ICE3BS02 implements a current-mode PWM architecture with internal oscillator fixed at 67 kHz, leading-edge blanking (220 ns), and propagation-delay compensation to maintain consistent power limiting across wide input voltage ranges. Its control unit integrates active burst mode triggered by feedback signal level and auto-restart protection for overtemperature (>140°C), VCC overvoltage (>15 V), undervoltage (<8.5 V), open-loop, and overload faults.
Startup is managed by an internal 500 V high-voltage cell drawing 1.05 mA from the rectified line via the HV pin until VCC reaches 15 V, after which the cell disables-eliminating external startup resistors. The SoftS pin serves dual roles: soft-start timing (via external capacitor) and blanking window adjustment for load-jump immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | Fixed 67 kHz - enables optimized transformer design and EMI filtering for universal-input flyback converters. |
| Max Duty Cycle | 72% - supports sufficient on-time margin for high step-down ratios in offline applications. |
| Peak Current Limit Tolerance | ±5% - ensures precise, repeatable power limiting without external calibration, reducing transformer and diode stress. |
| VCC Operating Range | 8.5 V to 21 V - accommodates wide auxiliary winding regulation while supporting UVLO hysteresis (15 V on / 8.5 V off). |
| Startup Cell Voltage Rating | 500 V - directly interfaces with rectified mains without external resistor, cutting BOM count and no-load losses. |
| Standby Power | <100 mW - achieved via active burst mode with immediate load-jump response and <1% output ripple. |
| Leading Edge Blanking | 220 ns - suppresses switching noise-induced false current-limit triggering during MOSFET turn-on. |
Pinout & Package
ICE3BS02 is housed in PG-DIP-8 package (8-pin dual in-line plastic), with pins 4 and 5 internally shorted as HV inputs. Pin functions are validated per Infineon datasheet v1.2 (2005-09-02).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SoftS) | Soft-start & blanking control | External capacitor sets soft-start time and adjustable blanking window duration for high-load-jump immunity. |
| 2 (FB) | Feedback input | Regulates output voltage via optocoupler; controls active burst mode entry/exit and PWM duty cycle. |
| 3 (CS) | Current sense input | Monitors MOSFET source current via sense resistor; triggers immediate gate shutdown at 0.85 V threshold. |
| 4 & 5 (HV) | High-voltage startup input | Accepts rectified AC line up to 500 V; powers internal startup cell until VCC reaches 15 V. |
| 6 (Gate) | Driver output | Push-pull gate driver capable of driving external PowerMOS; logic-level compatible with standard N-channel MOSFETs. |
| 7 (VCC) | Controller supply | Internal bias rail; requires external CVCC capacitor; regulated between 8.5 V and 21 V. |
| 8 (GND) | Signal ground | Reference node for all internal comparators, oscillators, and protection circuits; must be low-impedance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 500 V startup cell | Eliminates external high-voltage startup resistor, reducing no-load power loss and component count. |
| Active Burst Mode | Delivers <100 mW standby power with full regulation and immediate load-jump response-no output blackout. |
| Auto Restart Protection | Four independent fault responses (overtemp, VCC OV/UV, open-loop, overload) reset automatically after fault removal. |
| Adjustable blanking window | Configured via SoftS capacitor to prevent false trip during transient load surges-no extra components needed. |
| Precision current limiting | ±5% tolerance on 0.85 V current-sense threshold enables accurate, input-voltage-independent power limiting. |
Applications
| TV Power Supplies | Set-Top Box Adapters |
|---|---|
Use Scenario: Primary-side controller in 20–65 W flyback converters powering LCD/LED TVs with universal AC input (85–270 VAC). IC Role / Device Role / Timing Role: Current-mode PWM controller managing gate drive, current sensing, and burst-mode regulation via FB feedback loop. Use Value: Integrated 500 V startup and active burst mode achieve Energy Star Tier 2 compliance with <100 mW no-load consumption. | Use Scenario: Compact AC/DC adapter for digital cable/satellite receivers requiring low standby power and high reliability. IC Role / Device Role / Timing Role: Off-line SMPS controller providing fixed 67 kHz switching, soft-start sequencing, and auto-restart fault recovery. Use Value: 72% max duty cycle and ±5% current limit tolerance enable robust operation across input line variations without transformer overdesign. |
| Printer Power Modules | Home Audio AC Adapters |
Use Scenario: Embedded power supply in inkjet/laser printers handling intermittent high-power motor loads and low-power sleep states. IC Role / Device Role / Timing Role: Primary-side controller coordinating burst-mode transitions and fast load-jump response via SoftS-blanked CS sensing. Use Value: Adjustable blanking window prevents nuisance tripping during print-head activation, improving system uptime. | Use Scenario: Wall-wart adapter for powered speakers and streaming devices needing CE/UL safety certification and low EMI. IC Role / Device Role / Timing Role: Fixed-frequency current-mode controller implementing leading-edge blanking (220 ns) and soft-switching for EMI reduction. Use Value: Internal propagation-delay compensation maintains stable power limit across 85–270 VAC, simplifying compliance testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar off-line current-mode controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE3AS02 | 100 kHz switching frequency; identical pinout and protection features. | Better suited for higher-power or smaller-transformer designs where higher fSW reduces magnetics size. | Select ICE3AS02 when optimizing for transformer volume or tighter EMI filter requirements at 100 kHz. |
| ICE3BS02G | PG-DSO-8 package (surface-mount); same 67 kHz frequency and electrical specs; pin 6 = Gate, pin 5 = HV, pin 6 = N.C. | Required for automated SMT assembly; lacks internal HV pin short (pins 4/5 not bonded), altering layout routing. | Choose ICE3BS02G for production scalability and PCB space savings, accepting revised layout constraints. |
Compared with ICE3AS02 and ICE3BS02G, the ICE3BS02 offers through-hole DIP-8 compatibility, fixed 67 kHz operation ideal for cost-sensitive universal-input adapters, and verified thermal derating in open-frame TV power supplies-making it optimal for manual assembly and legacy board reuse.
Availability
ICE3BS02 is available at Aetrix Electronics and suitable for TV power supplies, set-top box adapters, and printer power modules requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for ICE3BS02 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 F3 series-including ICE3BS02-is designed specifically for energy-efficient, low-standby-power off-line SMPS in consumer electronics, integrating HV startup, burst mode, and comprehensive auto-restart protection in minimal-footprint packages.
FAQ
What is the purpose of the HV pin on ICE3BS02?
The HV pin connects directly to the rectified AC mains (up to 500 V) and powers the internal high-voltage startup cell. This cell delivers 1.05 mA to charge the external VCC capacitor until the IC reaches its 15 V turn-on threshold, after which the cell disables-removing the need for an external high-voltage startup resistor and reducing no-load losses.
How does the SoftS pin function in both startup and protection?
The SoftS pin uses a single external capacitor to set soft-start timing during power-up and define the blanking window duration during operation. During startup, the capacitor ramps the internal soft-start comparator; during load transients, it delays overload detection to prevent false auto-restart triggering-enabling one component to serve two critical timing functions.
Can ICE3BS02 replace ICE3AS02 in an existing design?
No direct replacement is possible without circuit revision: ICE3BS02 operates at 67 kHz versus ICE3AS02's 100 kHz, requiring transformer and output filter re-optimization. Additionally, while pinout and protection features match, the lower frequency impacts EMI profile and light-load efficiency trade-offs-design validation is mandatory.
What protection modes does ICE3BS02 implement, and how do they reset?
ICE3BS02 implements auto-restart protection for overtemperature (>140°C), VCC overvoltage (>15 V), VCC undervoltage (<8.5 V), output open-loop, and overload conditions. All modes disable gate output and discharge the SoftS capacitor; normal operation resumes automatically only after the fault clears and the next complete soft-start cycle completes-ensuring safe, self-recovering behavior.
ICE3BS02 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolSET®F3
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Output Isolation:
- Isolated
- Internal Switch(s):
- No
- Voltage - Breakdown:
- -
- Topology:
- Flyback
- Voltage - Start Up:
- 15 V
- Voltage - Supply (Vcc/Vdd):
- 8.5V ~ 21V
- Duty Cycle:
- 72%
- Frequency - Switching:
- 67kHz
- Power (Watts):
- -
- 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
ICE3BS02 FAQ
1.How can I place an order for ICE3BS02 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE3BS02 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 ICE3BS02 reliable?
The price and inventory of ICE3BS02 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE3BS02 is usually 5 days.
3.What payment methods are accepted for ICE3BS02?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE3BS02 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE3BS02?
ICE3BS02 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE3BS02 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 ICE3BS02?
For technical support, including ICE3BS02 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE3BS02 requirements.
6.How does Aetrix verify that ICE3BS02 is sourced from the original manufacturer or authorized distributors?
All ICE3BS02 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 ICE3BS02 meets industry standards.
7.What is the process for return or replacement of ICE3BS02?
All ICE3BS02 units undergo pre-shipment inspection (PSI). If there is an issue with ICE3BS02, 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 ICE3BS02 part is unused and in its original packaging.
Return procedure for ICE3BS02:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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