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Infineon Technologies ICE5ASAGXUMA1
- Part No.:
- ICE5ASAGXUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ICE5ASAGXUMA1.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK 8DSO
- Quantity:
- Payment:
- Shipping:
Inventory:5,000
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Product details
Overview
ICE5ASAGXUMA1 from Infineon is a fixed-frequency current-mode PWM controller in PG-DSO-8 package, designed for off-line flyback converters in cascode configuration. It operates at 100 kHz, delivers up to 66 W in CCM across 85–300 VAC input, supports digital frequency reduction and enhanced Active Burst Mode (<100 mW standby), and integrates error amplifier for direct feedback in non-isolated topologies - used in auxiliary power supplies for TVs, monitors, and home appliances.
For engineers reviewing the ICE5ASAGXUMA1 datasheet, ICE5ASAGXUMA1 pinout, ICE5ASAGXUMA1 application, or ICE5ASAGXUMA1 equivalent, key selection criteria include its selectable ABM entry/exit threshold, integrated VCC pre-charge path, cycle-by-cycle current limiting with CS short-to-GND protection, and auto-restart protection suite covering line overvoltage, VCC OVP/UVP, overload, overtemperature, and open-loop conditions.
Technical Context
The ICE5ASAGXUMA1 implements peak current mode control with slope compensation for stable DCM/CCM operation, using an internal transconductance error amplifier referenced to VERR for direct primary-side regulation in non-isolated flyback. Its digital frequency reduction dynamically lowers switching frequency under light load to improve efficiency without compromising transient response.
Startup is accelerated via cascode configuration with external VCC charging through GATE pull-up; soft-start is built-in and digitally controlled. Protection logic includes programmable line overvoltage detection at VIN, dual-threshold VCC monitoring, and fault latching with auto-restart behavior across all safety-critical events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switching Frequency | 100 kHz fixed - enables predictable EMI filtering and transformer design for 66 W CCM operation at 85–300 VAC. |
| Standby Power | <100 mW - achieved via selectable-entry Active Burst Mode with controllable output ripple for energy-efficient standby compliance. |
| VCC Operating Range | 10.0–25.5 V - supports wide-range auxiliary supply with integrated VCC diode and low-side MOSFET for cascode startup. |
| Current Sense Threshold | Typ. 1.0 V - sets cycle-by-cycle peak current limit; enables precise primary-side overcurrent protection with propagation delay compensation. |
| Error Amplifier Gain | Transconductance = 1.4 mS - provides direct feedback path from VERR to PWM comparator for stable non-isolated flyback regulation. |
| Protection Modes | Auto-restart on LOVP, VCC OVP/UVP, overload/open-loop, overtemperature, CS short-to-GND, VCC short-to-GND - ensures robust field reliability without latch-off. |
Pinout & Package
Package: PG-DSO-8 (8-pin exposed pad, RoHS-compliant, halogen-free mold compound).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Line Over Voltage Protection input | Connects to resistor divider from bulk bus; triggers shutdown if AC line exceeds programmed threshold - disable by grounding. |
| 2 VERR | Error amplifier output | Direct feedback node for non-isolated flyback; must be grounded for isolated configurations using optocoupler/TL431. |
| 3 FB | Feedback & ABM control | Combines secondary-side voltage sensing, burst mode entry/exit threshold setting, and open-loop/overload detection. |
| 4 CS | Current sense input | Accepts shunt voltage for peak current limiting; detects CS short-to-GND fault and feeds PWM comparator for switch-off timing. |
| 5 SOURCE | Power MOSFET source return | Common node between external MOSFET source and internal low-side MOSFET/VCC diode - enables cascode startup path. |
| 6 GATE | Gate driver output | Drives external MOSFET gate; includes internal pull-up to bus for VCC capacitor charging during startup. |
| 7 VCC | IC supply voltage | Powered by internal VCC diode during startup and external winding post-start; regulated between 10.0–25.5 V. |
| 8 GND | Signal and power ground | Common reference for all analog blocks, protections, and gate driver return path. |
Key Features
| Feature | Design Value |
|---|---|
| Digital frequency reduction | Automatically lowers switching frequency below 50% load to reduce core loss and conduction loss - improves light-load efficiency without audible noise. |
| Enhanced Active Burst Mode | Selectably configured entry/exit thresholds enable <100 mW standby while maintaining tight output voltage ripple control during burst cycles. |
| Integrated error amplifier | 1.4 mS transconductance amplifier at VERR allows direct primary-side feedback in non-isolated flyback - eliminates optocoupler and TL431. |
| Soft gate driving + frequency jitter | Reduces EMI peaks by spreading spectral energy and smoothing dv/dt at switch transitions - simplifies EMI filter design. |
| Built-in digital soft start | Controls PWM duty ramp-up time to prevent inrush current and transformer saturation during power-on - no external components required. |
Applications
| TV Auxiliary Power Supply | LCD/LED Monitor PSU |
|---|---|
Use Scenario: Standby and main power conversion in 43–75 inch smart TVs with dual-rail outputs (5 VSB + 12 V). IC Role / Device Role / Timing Role: Fixed-frequency current-mode PWM controller managing cascode-driven flyback with ABM for sub-100 mW standby compliance. Use Value: Eliminates need for separate standby IC; single-chip solution reduces BOM count and PCB area while meeting ErP Lot 6 requirements. | Use Scenario: Compact, low-noise auxiliary supply in slim-profile LCD/LED monitors with fast wake-up from deep sleep. IC Role / Device Role / Timing Role: Primary-side regulated flyback controller with integrated error amplifier enabling direct feedback without optocoupler. Use Value: Reduces component count by 3–4 parts (optocoupler, TL431, bias resistors) and improves long-term stability by removing aging-sensitive isolation elements. |
| Home Appliance Control PSU | Set-Top Box Power Module |
Use Scenario: Isolated 5 V/1 A control supply in washing machines, refrigerators, and dishwashers operating across global AC mains (85–300 VAC). IC Role / Device Role / Timing Role: Fixed-frequency PWM controller with comprehensive auto-restart protections including line overvoltage and VCC short-to-GND. Use Value: Ensures uninterrupted MCU operation during brownouts or surges; VCC short-to-GND protection prevents latch-up during capacitor failure. | Use Scenario: Dual-output (3.3 V + 12 V) flyback supply in cable/satellite set-top boxes requiring low EMI and rapid dynamic load response. IC Role / Device Role / Timing Role: Current-mode controller with slope compensation and frequency jitter for stable CCM/DCM transition under variable video decoding loads. Use Value: Maintains ±3% output regulation across 10–100% load step while suppressing conducted EMI to meet FCC Class B limits without added shielding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-frequency flyback controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE5GSAGXUMA1 | 125 kHz switching frequency; identical pinout, package, and protection set; higher max output power (66 W CCM same, but 108 W DCM at 220 VAC). | Suitable where higher power density or faster transient response is needed; requires re-optimization of transformer turns ratio and snubber. | Select when system demands >66 W in CCM or tighter regulation at light load due to higher fSW and improved jitter profile. |
| ICE3BxxJG | Legacy 3rd-gen controller; 65 kHz fSW; no digital frequency reduction or selectable ABM; analog soft-start only; lacks VERR pin and integrated error amp. | Used in cost-sensitive legacy designs; requires external error amp or optocoupler for regulation; limited light-load efficiency. | Choose only for drop-in replacement in existing ICE3-based boards where redesign is prohibited; not recommended for new designs. |
Compared with ICE5GSAGXUMA1, ICE5ASAGXUMA1 trades 25 kHz lower frequency for reduced gate drive loss and relaxed EMI filtering, while ICE3BxxJG lacks digital ABM and integrated regulation - making ICE5ASAGXUMA1 optimal for new energy-compliant auxiliary PSUs needing balance of efficiency, integration, and protection depth.
Availability
ICE5ASAGXUMA1 is available at Aetrix Electronics and suitable for TV auxiliary power supplies, LCD/LED monitor PSUs, and home appliance control power supplies requiring stable component supply, long-lifecycle support, and full industrial qualification per JEDEC standards.
Supply support for ICE5ASAGXUMA1 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 is a German semiconductor manufacturer specializing in power management, automotive, and industrial control ICs, with leadership in high-voltage analog and mixed-signal controllers.
The ICE5xSAG product line targets energy-efficient off-line flyback converters for consumer and industrial auxiliary power, emphasizing ultra-low standby power, integrated protection, and cascode-ready architecture.
FAQ
What is the purpose of the VERR pin?
The VERR pin is the output of the integrated transconductance error amplifier. In non-isolated flyback designs, it connects directly to the current-sense node to close the regulation loop without optocoupler or TL431. For isolated topologies, VERR must be tied to GND to disable the internal amplifier and allow external feedback via FB pin.
How does Active Burst Mode reduce standby power below 100 mW?
ICE5ASAGXUMA1 achieves <100 mW standby by entering Enhanced Active Burst Mode with digitally controlled burst frequency and selectable entry/exit thresholds. During burst, the controller stops switching for extended periods, reducing switching and gate drive losses while maintaining tight output voltage ripple via precise ABM timing and soft restart.
Can ICE5ASAGXUMA1 drive a discrete MOSFET in cascode configuration?
Yes - the IC integrates a low-side MOSFET and VCC diode to form a cascode structure with an external high-voltage MOSFET. The SOURCE pin connects to the external MOSFET's source, while GATE drives its gate. This configuration enables fast VCC charging during startup and efficient high-voltage operation up to 300 VAC input.
What protections are implemented in auto-restart mode?
All protections - input line overvoltage (VIN), VCC overvoltage/undervoltage, overload/open-loop, overtemperature, CS short-to-GND, and VCC short-to-GND - operate in auto-restart mode. After fault detection, the IC disables switching, waits a fixed timeout, then attempts soft restart. This avoids permanent latch-off while ensuring safe recovery under intermittent faults.
ICE5ASAGXUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Isolation:
- Non-Isolated
- Internal Switch(s):
- Yes
- Voltage - Breakdown:
- -
- Topology:
- Flyback
- Voltage - Start Up:
- 16 V
- Voltage - Supply (Vcc/Vdd):
- 10V ~ 25.5V
- Duty Cycle:
- 75%
- Frequency - Switching:
- 100kHz
- Power (Watts):
- 60 W
- Fault Protection:
- Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage
- Control Features:
- EN, Soft Start, Sync
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- PG-DSO-8
- Mounting Type:
- Surface Mount
ICE5ASAGXUMA1 FAQ
1.How can I place an order for ICE5ASAGXUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE5ASAGXUMA1 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 ICE5ASAGXUMA1 reliable?
The price and inventory of ICE5ASAGXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5ASAGXUMA1 is usually 5 days.
3.What payment methods are accepted for ICE5ASAGXUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5ASAGXUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE5ASAGXUMA1?
ICE5ASAGXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE5ASAGXUMA1 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 ICE5ASAGXUMA1?
For technical support, including ICE5ASAGXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5ASAGXUMA1 requirements.
6.How does Aetrix verify that ICE5ASAGXUMA1 is sourced from the original manufacturer or authorized distributors?
All ICE5ASAGXUMA1 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 ICE5ASAGXUMA1 meets industry standards.
7.What is the process for return or replacement of ICE5ASAGXUMA1?
All ICE5ASAGXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5ASAGXUMA1, 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 ICE5ASAGXUMA1 part is unused and in its original packaging.
Return procedure for ICE5ASAGXUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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