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ICE3B1565

Manufacturer: LNFINEON

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

Partnumber Manufacturer Quantity Availability
ICE3B1565 LNFINEON 72 In Stock

Description and Introduction

Third Generation Fixed Frequency Intergrated Power ICs for Switched Mode Power Supplies The part **ICE3B1565** is an integrated circuit (IC) manufactured by **Infineon Technologies**. Below are its key specifications, descriptions, and features based on available technical documentation:  

### **Manufacturer:**  
- **Infineon Technologies**  

### **Description:**  
- The **ICE3B1565** is a **PWM controller IC** designed for **offline switched-mode power supplies (SMPS)**.  
- It is part of the **CoolSET™** family, optimized for **low-power applications** with high efficiency.  
- It integrates a **high-voltage startup circuit**, reducing external component count.  

### **Key Features:**  
1. **Voltage Range:**  
   - **Input Voltage (VIN):** Up to **650V** (for high-voltage applications).  
   - **Operating Voltage (VCC):** Typically **8.5V to 21V**.  

2. **Switching Frequency:**  
   - **Fixed frequency operation** (typically **65 kHz**).  

3. **Current Mode Control:**  
   - **Peak current mode control** for improved transient response.  

4. **Protection Features:**  
   - **Overvoltage protection (OVP)**  
   - **Overcurrent protection (OCP)**  
   - **Overload protection (OLP)**  
   - **Undervoltage lockout (UVLO)**  

5. **Efficiency Enhancements:**  
   - **Burst mode operation** for low standby power consumption.  
   - **Soft-start function** to reduce inrush current.  

6. **Package:**  
   - **DIP-8 (PDIP-8)** or **SO-8 (SOIC-8)** package options.  

### **Applications:**  
- **AC/DC power supplies** (e.g., adapters, chargers).  
- **Auxiliary power supplies** for industrial and consumer electronics.  
- **LED drivers** and **low-power SMPS designs**.  

For detailed electrical characteristics and application circuits, refer to the official **Infineon ICE3B1565 datasheet**.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • NCP1252ADR2G --: Offline flyback PWM controller with integrated high-voltage startup, similar function to ICE3B1565 for SMPS designs; different series and manufacturer.
  • UC3845BD1R2G --: Classic current-mode PWM controller widely used in offline flyback converters, a common functional substitute when integrated startup is not required.
  • VIPER22A --: Integrated offline switcher with built-in power MOSFET and startup circuit, suitable as a drop-in style alternative for low-power SMPS applications.
  • NCP1252 --: Offline flyback PWM controller with integrated high-voltage startup, similar function to ICE3B1565 for SMPS designs.
  • UC3842 --: Industry-standard current-mode PWM controller widely used in offline flyback supplies, easy drop-in for many ICE3B1565 applications.
  • TOP264 --: Integrated offline switcher with built-in MOSFET and controller, suitable replacement where ICE3B1565 is used in low-power AC-DC converters.

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