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

Infineon Technologies ICE5AR4770BZSXKLA1

Name: ICE5AR4770BZSXKLA1
Brand: Infineon Technologies
SKU: ICE5AR4770BZSXKLA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ICE5AR4770BZSXKLA1

Manufacturer:: Infineon Technologies

Category:: AC DC Converters, Offline Switches

Package:: 8-DIP (0.300", 7.62mm), 7 Leads

Datasheet:: ICE5AR4770BZSXKLA1.pdf

Description:: IC OFFLINE SWITCH FLYBACK 7DIP

Quantity:: RFQ Add To RFQ list

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Inventory:1,262

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Product details

Overview

ICE5AR4770BZSXKLA1 from Infineon is a fixed-frequency 700 V integrated power IC (CoolSET™) combining a PWM controller and avalanche-rugged CoolMOS™ in a single PG-DIP-7 package. It delivers 14.5 W output at 85–300 VAC in DCM, features 100 kHz switching, 4.73 Ω R_DS(on), and supports non-isolated flyback via integrated error amplifier with direct feedback.

For engineers reviewing the ICE5AR4770BZSXKLA1 datasheet, ICE5AR4770BZSXKLA1 pinout, ICE5AR4770BZSXKLA1 application, or ICE5AR4770BZSXKLA1 equivalent, this device is selected for ultra-low standby power (<100 mW), EMI-sensitive auxiliary supplies, and cost-optimized AC/DC converters requiring cascode fast-startup and digital frequency reduction.

Technical Context

The ICE5AR4770BZSXKLA1 implements peak current-mode control with slope compensation for stable DCM/CCM operation across 85–300 VAC input. Its digital frequency reduction dynamically lowers switching frequency under light load to improve efficiency, while soft gate driving and frequency jitter suppress conducted and radiated EMI.

It integrates a transconductance error amplifier referenced to VERR for direct primary-side regulation in non-isolated flyback, and uses FB pin for combined feedback, ABM entry/exit threshold selection, and overload/open-loop protection-enabling simplified optocoupler-free designs.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	700 V - Enables direct connection to 300 VAC rectified bus without external snubber stress.
f_SW	100 kHz - Fixed frequency simplifies EMI filter design and ensures predictable transformer sizing.
R_DS(on)	4.73 Ω - Defines conduction loss and thermal rise in high-voltage primary switch stage.
Standby Power	<100 mW - Achieved via Enhanced Active Burst Mode with selectable entry/exit thresholds.
V_CC Range	10.0–25.5 V - Supports wide auxiliary supply margin and robust startup under brownout.
Protections	VCC OVP/UVP, overload, overtemperature, CS short-to-GND, VCC short-to-GND - All auto-restart mode for field reliability.
Startup	Cascode configuration - Enables fast VCC charging from drain, eliminating external startup resistor.

Pinout & Package

ICE5AR4770BZSXKLA1 is housed in a PG-DIP-7 (7-pin plastic dual in-line package) with creepage/clearance optimized for reinforced insulation in AC/DC offline applications. Pin 6 is NC (no internal connection); pins are arranged as GND (8), VERR (1), FB (2), CS (3), GATE (4), DRAIN (5), VCC (7) - matching standard DIP-7 footprint with pin 1 marked by notch.

Pin/Terminal	Circuit Role	Design Meaning
VERR	Error amplifier output	Direct feedback node for non-isolated flyback; tie to GND for isolated configurations.
FB	Feedback & ABM control	Combines regulation signal, burst mode entry/exit threshold selection, and overload detection.
CS	Current sense input	Connects to primary shunt resistor; triggers cycle-by-cycle current limit and CS short-to-GND protection.
GATE	Integrated driver output	Drives CoolMOS™ gate; includes internal pull-up to bus for VCC pre-charge during startup.
DRAIN	CoolMOS™ drain terminal	High-side switch node connected directly to rectified AC input; rated for 700 V avalanche ruggedness.
VCC	IC supply input	Power rail for controller logic; operates 10.0–25.5 V with OVP at 16.0 V and UVLO at 10.0 V.
GND	Signal and power reference	Common return for controller, error amp, and protection comparators; must be low-impedance layout.

Key Features

Feature	Design Value
Enhanced Active Burst Mode	Selectably configurable entry/exit standby power thresholds enable <100 mW no-load consumption with controlled output ripple.
Digital frequency reduction	Automatically scales switching frequency below 50% load to reduce core and switching losses without compromising regulation.
Cascode fast startup	Internal drain-to-VCC pull-up eliminates external high-voltage startup resistor and reduces turn-on delay.
Integrated error amplifier	Transconductance amplifier on VERR pin enables primary-side regulation in non-isolated flyback, removing optocoupler and TL431.
Comprehensive auto-restart protections	Five independent fault monitors (VCC OVP/UVP, overload, OT, CS short, VCC short) all recover automatically after fault clearance.

Applications

Home Appliance Auxiliary Supply

LED Monitor Standby Rail

Use Scenario: Provides 5 V/100 mA standby power for microcontroller wake-up circuitry in washing machines and refrigerators operating across global AC mains (85–300 VAC).

IC Role / Device Role / Timing Role: Fixed-frequency flyback controller with integrated 700 V CoolMOS™ and ABM for sub-100 mW no-load consumption.

Use Value: Eliminates external HV startup network and optocoupler, reducing BOM count by ≥3 components while meeting IEC 62301 Class I standby requirements.

Use Scenario: Generates isolated 12 V bias for backlight in-sleep mode of 24-inch LED monitors with variable line input (100–240 VAC).

IC Role / Device Role / Timing Role: Current-mode PWM controller with slope compensation and digital frequency reduction for stable light-load regulation.

Use Value: Maintains ±5% output accuracy across 10–100% load with <30 mVpp ripple in ABM, enabling instant wake-from-sleep response.

Set-Top Box Primary Converter

PC Motherboard +5 VSB Rail

Use Scenario: Delivers 5 V/2 A main output in compact set-top box power supplies where PCB area and thermal budget are constrained.

IC Role / Device Role / Timing Role: Integrated CoolSET™ combining controller and 700 V MOSFET in DIP-7 for simplified layout and reduced creepage routing.

Use Value: Achieves 78% efficiency at 20% load via frequency jitter and soft gate drive, lowering EMI filter cost by 30% versus discrete solutions.

Use Scenario: Supplies +5 VSB (standby) rail in ATX-compliant PC motherboards requiring continuous 2.5 A output at 115/230 VAC input.

IC Role / Device Role / Timing Role: Fixed-frequency flyback IC with built-in soft-start and VCC pre-charge for reliable cold-start under low-line conditions.

Use Value: Starts within 120 ms at 85 VAC with no external capacitor needed on VCC, ensuring ATX specification compliance for PS_ON timing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar fixed-frequency flyback controller with integrated HV MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ICE5AR4780BZS	800 V CoolMOS™, 4.13 Ω R_DS(on), same 100 kHz f_SW	Higher input voltage margin (up to 400 VDC bus); suitable for industrial 3-phase rectified inputs.	Select when designing for >300 VAC surge immunity or extended hold-up time requirements.
ICE5QR4770AZ	Quasi-resonant (QR) topology, same 700 V/4.73 Ω, but variable frequency operation	Lower EMI and higher full-load efficiency (>82%), but requires QR transformer design and lacks ABM flexibility.	Choose for higher efficiency targets above 50% load where EMI filtering cost outweighs control complexity.

Compared with ICE5AR4780BZS, ICE5AR4770BZSXKLA1 offers lower R_DS(on) penalty at 700 V rating and tighter ABM control for consumer standby specs; versus ICE5QR4770AZ, it trades peak efficiency for deterministic EMI behavior and simpler magnetics design.

Availability

ICE5AR4770BZSXKLA1 is available at Aetrix Electronics and suitable for home appliance auxiliary supplies, LED monitor standby rails, and set-top box primary converters requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.

Supply support for ICE5AR4770BZSXKLA1 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 silicon carbide and CoolMOS™ technologies.

This part belongs to the CoolSET™ 5th-generation fixed-frequency flyback controller family, engineered for cost-sensitive, space-constrained offline SMPS in white goods and consumer electronics where integration, standby efficiency, and EMI performance are critical.

FAQ

What is the maximum continuous output power achievable with ICE5AR4770BZSXKLA1 in an open-frame design?

At 85–300 VAC input and 50 °C ambient, ICE5AR4770BZSXKLA1 delivers up to 14.5 W in DCM mode using minimum copper area on a 2 oz single-sided PCB. This value assumes TJ = 125 °C and accounts for both controller and CoolMOS™ losses. Actual power depends on heatsinking, transformer design, and layout; Infineon recommends thermal simulation for >10 W designs.

Can ICE5AR4770BZSXKLA1 operate without an optocoupler in isolated flyback topologies?

No - in isolated flyback, the VERR pin must be tied to GND per datasheet Figure 1, disabling the internal error amplifier. Regulation relies on optocoupler feedback to the FB pin. The integrated error amplifier is only functional in non-isolated configurations where VERR connects to the secondary-side error amp output.

How is Active Burst Mode configured for different standby power targets?

ABM entry and exit thresholds are set externally using resistive dividers on the FB pin. Two separate resistor networks define V_{FB_BOn} (burst entry) and V_{FB_BOff} (burst exit), allowing precise control of hysteresis and standby power level. Typical values yield <100 mW at 230 VAC with ≤15 mVpp output ripple.

Does ICE5AR4770BZSXKLA1 require an external startup resistor?

No - its cascode configuration uses an internal high-voltage pull-up from DRAIN to GATE, which charges the VCC capacitor directly during startup. This eliminates the need for an external high-voltage startup resistor and associated power loss, reducing component count and improving startup speed at low line voltages.

ICE5AR4770BZSXKLA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™, CoolSET™

Package/Case:: 8-DIP (0.300", 7.62mm), 7 Leads

Packaging:: Tube

Product Status:: Active

Output Isolation:: Isolated

Internal Switch(s):: Yes

Voltage - Breakdown:: 700V

Topology:: Flyback

Voltage - Start Up:: 16 V

Voltage - Supply (Vcc/Vdd):: 10V ~ 25.5V

Duty Cycle:: 75%

Frequency - Switching:: 100kHz

Power (Watts):: 14.5 W

Fault Protection:: Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage

Control Features:: EN, Soft Start, Sync

Operating Temperature:: -40°C ~ 125°C (TJ)

Grade:: -

Qualification:: -

Supplier Device Package:: PG-DIP-7

Mounting Type:: Through Hole

ICE5AR4770BZSXKLA1 FAQ

1.How can I place an order for ICE5AR4770BZSXKLA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for ICE5AR4770BZSXKLA1 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 ICE5AR4770BZSXKLA1 reliable?

The price and inventory of ICE5AR4770BZSXKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE5AR4770BZSXKLA1 is usually 5 days.

3.What payment methods are accepted for ICE5AR4770BZSXKLA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE5AR4770BZSXKLA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ICE5AR4770BZSXKLA1?

ICE5AR4770BZSXKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ICE5AR4770BZSXKLA1 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 ICE5AR4770BZSXKLA1?

For technical support, including ICE5AR4770BZSXKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE5AR4770BZSXKLA1 requirements.

6.How does Aetrix verify that ICE5AR4770BZSXKLA1 is sourced from the original manufacturer or authorized distributors?

All ICE5AR4770BZSXKLA1 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 ICE5AR4770BZSXKLA1 meets industry standards.

7.What is the process for return or replacement of ICE5AR4770BZSXKLA1?

All ICE5AR4770BZSXKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE5AR4770BZSXKLA1, 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 ICE5AR4770BZSXKLA1 part is unused and in its original packaging.

Return procedure for ICE5AR4770BZSXKLA1:

1.Submit a request within 90 days.

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

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