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ICE3B5065P from INFINEON

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ICE3B5065P

Manufacturer: INFINEON, 英飞凌

Third Generation Fixed Frequency Intergrated Power ICs for Switched Mode Power Supplies

Partnumber Manufacturer Quantity Availability
ICE3B5065P INFINEON, 英飞凌 12780 In Stock

Description and Introduction

Third Generation Fixed Frequency Intergrated Power ICs for Switched Mode Power Supplies The part **ICE3B5065P** is manufactured by **Infineon Technologies**. Below are the specifications, descriptions, and features based on available factual information:  

### **Specifications:**  
- **Manufacturer:** Infineon Technologies  
- **Category:** Power Management ICs  
- **Type:** SMPS (Switched-Mode Power Supply) Controller  
- **Topology:** Flyback  
- **Input Voltage Range:** 85 V to 265 V (AC)  
- **Output Power:** Up to 65 W (depending on design)  
- **Switching Frequency:** Fixed at 65 kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** DIP-8 (Through-hole)  
- **Protection Features:** Overload Protection (OLP), Overvoltage Protection (OVP), Over-Temperature Protection (OTP), and VCC Under-Voltage Lockout (UVLO)  

### **Descriptions:**  
The **ICE3B5065P** is a high-performance, low-power offline SMPS controller designed for flyback converters. It integrates a high-voltage startup cell, reducing external component count and system cost. The IC is optimized for energy-efficient power supplies in applications such as adapters, LED drivers, and auxiliary power supplies.  

### **Features:**  
- **Integrated High-Voltage Startup Circuit** – Eliminates the need for an external startup resistor.  
- **Low Standby Power Consumption** – Meets energy efficiency standards.  
- **Frequency Jittering** – Reduces EMI noise.  
- **Soft Start Function** – Minimizes inrush current.  
- **Cycle-by-Cycle Current Limiting** – Enhances reliability.  
- **Auto-Restart Protection** – Recovers automatically after fault conditions.  

For detailed application notes and design guidelines, refer to the official **Infineon datasheet**.

Application Scenarios & Design Considerations

Third Generation Fixed Frequency Intergrated Power ICs for Switched Mode Power Supplies

Alternative Part Number

  • NCP1252APG --: Offline flyback PWM controller with integrated high-voltage startup, similar power range and function as the ICE3B series; widely available and pin-compatible in typical flyback designs.
  • UC3845BN --: Classic current-mode PWM controller suitable for offline flyback converters; lower integration than the original but a proven, low-cost drop-in for many SMPS designs with minor external component changes.
  • LNK626PG --: Integrated offline switcher with built-in MOSFET and controller, comparable power class and application; requires layout and transformer review but offers a highly integrated alternative.
  • TOP258PN --: Integrated offline switcher with built-in MOSFET and controller in a DIP package, offering similar functionality for low-to-medium power AC-DC converters.

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