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Infineon Technologies ICE2QR4765HKLA1
- Part No.:
- ICE2QR4765HKLA1
- Manufacturer:
- Infineon Technologies
- Category:
- AC DC Converters, Offline Switches
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
ICE2QR4765HKLA1.pdf
- Description:
- IC OFFLINE SWITCH FLYBACK 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,167
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Product details
Overview
ICE2QR4765HKLA1 from Infineon Technologies is a quasi-resonant PWM controller IC with integrated 650V CoolMOS® and startup cell in PG-DIP-8 package, designed for off-line SMPS in LCD monitors and DVD players. It delivers 30W max input power at 230VAC ±15%, supports active burst mode (<100mW no-load standby), and operates across 85–265VAC universal input.
For engineers reviewing the ICE2QR4765HKLA1 datasheet, ICE2QR4765HKLA1 pinout, ICE2QR4765HKLA1 application, or ICE2QR4765HKLA1 equivalent, key selection criteria include integrated high-voltage startup, digital frequency reduction for light-load efficiency, zero-crossing detection for QR timing, and built-in protections including VCC OVP/UVP, overtemperature, and adjustable output overvoltage latch-off.
Technical Context
The ICE2QR4765HKLA1 implements current-mode quasi-resonant control using a digital up/down counter and ZC counter to synchronize MOSFET turn-on at valley points, reducing EMI and voltage stress on secondary diodes. Its BiCMOS process enables wide VCC operating range (10.5–18V) and low quiescent consumption.
It integrates a depletion-mode CoolMOS® with avalanche ruggedness, a dedicated startup cell delivering ~1.05mA constant-current precharge to VCC, and digital soft-start (12ms, 4-step ramp). Protection architecture includes auto-restart for overload/VCC faults and latch-off for transformer short-winding and output overvoltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 85–265 VAC universal mains input - enables single-design global deployment without hardware change. |
| Integrated MOSFET | 650V avalanche-rugged CoolMOS® - eliminates external HV startup resistor and reduces BOM count. |
| Max Output Power | 30W @ 230VAC ±15% - supports mid-power consumer SMPS designs like Blu-ray players and STBs. |
| Standby Power | <100 mW at no load - meets stringent Energy Star and EU CoC Tier 2 requirements. |
| Soft-Start Time | 12 ms (digital, 4-step) - limits inrush current and prevents transformer saturation during startup. |
| Protection Modes | VCC OVP/UVP, overtemperature, overload (auto-restart), output OVP (latch-off), short-winding (latch-off) - ensures robust field reliability without external circuitry. |
| Quasi-Resonant Timing | Digital ZC detection with ringing suppression - avoids false triggering during transformer ring-down, enabling stable valley switching down to very light loads. |
Pinout & Package
Package: PG-DIP-8 (Plastic Dual-In-Line Package, 8-pin, through-hole, 9.27 mm × 6.35 mm body, 0.3 inch lead spacing). Pins 4 and 5 are internally shorted as common Drain connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ZC) | Zero-Crossing Input | Accepts delayed auxiliary winding signal; triggers valley-switching and enables output overvoltage detection via internal threshold comparison. |
| 2 (FB) | Feedback Input | Carries optocoupler-derived regulation signal; controls PWM off-time, digital frequency reduction, burst ratio, and open-loop protection. |
| 3 (CS) | Current Sense Input | Connects to primary-side shunt; enables cycle-by-cycle peak current limiting, foldback correction, and short-winding detection during on-time. |
| 4 & 5 (Drain) | Integrated CoolMOS® Drain | High-side power switch node; rated for 650V blocking; pins shorted internally to handle full primary current path. |
| 6 (n.c.) | No Connection | Unbonded pad - must remain unconnected per design; no routing or PCB trace required. |
| 7 (VCC) | Controller Supply | IC power rail (10.5–18V); powered initially by integrated startup cell, then sustained by auxiliary winding; includes UVP/OVP auto-restart. |
| 8 (GND) | Controller Ground | Reference return for all analog/digital blocks; separate from power ground plane in layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Active Burst Mode | Enables ultra-low standby power (<100 mW) with controlled output ripple - eliminates need for auxiliary flyback winding or external LDO. |
| Digital Frequency Reduction | Reduces switching frequency linearly with load drop - minimizes switching losses at partial load while maintaining regulation stability. |
| Built-in Digital Soft-Start | 12 ms, 4-step current limit ramp - prevents transformer saturation and inrush-induced component stress during cold start. |
| Foldback Point Correction | Adjusts current limit threshold dynamically with line voltage - maintains consistent power delivery across universal AC input range. |
| Auto-Restart & Latch-Off Protections | VCC, overload, and overtemperature use auto-restart; output OVP and short-winding use latch-off - balances safety and recoverability per fault type. |
Applications
| LCD Monitor Power Supply | DVD/Blu-ray Player SMPS |
|---|---|
|
Use Scenario: 24W–30W primary-side regulated flyback supplying logic board, backlight inverter, and USB ports. IC Role / Device Role / Timing Role: Quasi-resonant PWM controller with integrated 650V switch and startup cell - manages valley switching, feedback regulation, and light-load burst operation. Use Value: Eliminates external HV startup network and reduces EMI filter size by >30% due to deterministic zero-voltage switching. |
Use Scenario: Compact 19W universal-input SMPS powering servo motor drivers, laser diode bias, and digital signal processor rails. IC Role / Device Role / Timing Role: Integrated QR controller with digital soft-start and active burst - ensures silent startup, low acoustic noise, and <100mW standby compliance. Use Value: Achieves CoC Tier 2 efficiency without auxiliary winding or secondary-side controller, cutting BOM cost by 2–3 components. |
| Set-Top Box Adapter | Small Form-Factor AC-DC Adapter |
|
Use Scenario: Wall-plug adapter delivering 12V/1.5A to cable/satellite STB with thermal-limited enclosure. IC Role / Device Role / Timing Role: Primary-side QR controller with integrated CoolMOS® and thermal shutdown - handles 85–265VAC input and regulates under variable load and ambient conditions. Use Value: Maintains >78% average efficiency across 10–100% load while keeping case temperature below 60°C at 50°C ambient. |
Use Scenario: 24mm × 24mm × 12mm enclosed adapter for IoT gateway requiring low-profile, high-reliability power conversion. IC Role / Device Role / Timing Role: Single-chip SMPS solution with latch-off OVP and short-winding protection - enables compact layout with minimal creepage/clearance overhead. Use Value: Reduces PCB area by 25% vs discrete controller + MOSFET solution while meeting IEC 62368-1 reinforced insulation requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quasi-resonant SMPS controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ICE2QR4765Z | Same die, PG-DSO-8 package (surface-mount); lacks DIP-8 through-hole mounting and pin 6 n.c. configuration. | Requires rework of PCB layout and wave-solder process; not suitable for legacy DIP-8 socketed designs. | Select only when SMT assembly and space-constrained layouts are prioritized over mechanical serviceability. |
| ICE3B0565J | Fixed-frequency PWM controller (not QR); 650V CoolMOS®, but no ZC detection, no digital frequency reduction, no active burst mode. | Higher standby power (>300mW); higher EMI; requires larger output capacitor for same ripple spec. | Choose only if cost sensitivity outweighs efficiency/EMI requirements and QR benefits are non-critical. |
Compared with ICE2QR4765Z and ICE3B0565J, the ICE2QR4765HKLA1 uniquely combines through-hole DIP-8 compatibility, true valley-switching control, and sub-100mW standby - making it optimal for cost-sensitive, thermally constrained, and regulatory-compliant consumer power supplies where layout flexibility and field serviceability matter.
Availability
ICE2QR4765HKLA1 is available at Aetrix Electronics and suitable for LCD monitor power supplies, DVD/Blu-ray player SMPS, and set-top box adapters requiring stable component supply, long-term lifecycle support, and RoHS-compliant through-hole packaging.
Supply support for ICE2QR4765HKLA1 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®-Q1 product line targets cost-optimized, high-efficiency off-line SMPS for consumer electronics, integrating HV startup, QR control, and protection logic into single-package solutions to reduce system-level complexity.
FAQ
What is the maximum continuous output power supported by ICE2QR4765HKLA1?
The ICE2QR4765HKLA1 supports up to 30W maximum input power at 230VAC ±15% with adequate heatsinking and standard PCB copper area. At 115VAC, derating applies due to higher RMS current; typical continuous output is 19W under same thermal conditions. This rating assumes Ta = 50°C, Ti = 125°C, and no additional heatsink - actual power depends on transformer design, layout, and ambient airflow.
Does ICE2QR4765HKLA1 require an external startup resistor?
No. The ICE2QR4765HKLA1 integrates a dedicated 650V startup cell within the CoolMOS® structure, eliminating the need for an external high-voltage startup resistor. During initial power-up, the startup cell delivers ~1.05mA constant current to charge the VCC capacitor until the IC reaches its turn-on threshold (10.5V), after which operation transitions to auxiliary winding supply.
How does the Active Burst Mode reduce standby power?
Active Burst Mode disables switching cycles entirely during no-load or light-load conditions, waking only periodically to sample FB voltage. Each burst consists of a short train of QR pulses; burst frequency and pulse count are digitally adjusted to maintain regulation while minimizing average switching loss. This achieves <100mW total input power - verified per IEC 62301 Ed.2 test conditions.
Can ICE2QR4765HKLA1 be used in continuous conduction mode (CCM) flyback designs?
Yes, but with limitations. The ICE2QR4765HKLA1 is optimized for discontinuous conduction mode (DCM) and boundary conduction mode (BCM) quasi-resonant operation. In CCM, ZC detection becomes unreliable, disabling valley switching. Designers must ensure transformer design and operating point keep the converter in BCM/DCM across full load and line range - typically below ~40% of max load at low line.
ICE2QR4765HKLA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- CoolMOS™, CoolSET™-Q1
- 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 ~ 27V
- Duty Cycle:
- 50%
- Frequency - Switching:
- 52kHz
- Power (Watts):
- 30 W
- Fault Protection:
- Current Limiting, Over Load, Over Temperature, Over Voltage
- Control Features:
- -
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- PG-DIP-8
- Mounting Type:
- Through Hole
ICE2QR4765HKLA1 FAQ
1.How can I place an order for ICE2QR4765HKLA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for ICE2QR4765HKLA1 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 ICE2QR4765HKLA1 reliable?
The price and inventory of ICE2QR4765HKLA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ICE2QR4765HKLA1 is usually 5 days.
3.What payment methods are accepted for ICE2QR4765HKLA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ICE2QR4765HKLA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ICE2QR4765HKLA1?
ICE2QR4765HKLA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ICE2QR4765HKLA1 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 ICE2QR4765HKLA1?
For technical support, including ICE2QR4765HKLA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ICE2QR4765HKLA1 requirements.
6.How does Aetrix verify that ICE2QR4765HKLA1 is sourced from the original manufacturer or authorized distributors?
All ICE2QR4765HKLA1 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 ICE2QR4765HKLA1 meets industry standards.
7.What is the process for return or replacement of ICE2QR4765HKLA1?
All ICE2QR4765HKLA1 units undergo pre-shipment inspection (PSI). If there is an issue with ICE2QR4765HKLA1, 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 ICE2QR4765HKLA1 part is unused and in its original packaging.
Return procedure for ICE2QR4765HKLA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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