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ISL6551IR from INTERSIL

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ISL6551IR

Manufacturer: INTERSIL

ZVS Full Bridge PWM Controller

Partnumber Manufacturer Quantity Availability
ISL6551IR INTERSIL 1153 In Stock

Description and Introduction

ZVS Full Bridge PWM Controller The ISL6551IR is a high-performance PWM controller manufactured by INTERSIL (now part of Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** INTERSIL (now Renesas Electronics)  
- **Part Number:** ISL6551IR  
- **Type:** PWM Controller  
- **Package:** 28-Lead SOIC (Small Outline Integrated Circuit)  
- **Input Voltage Range:** Typically 5V or 12V (specific range depends on application)  
- **Output Voltage Range:** Adjustable (depends on external components)  
- **Switching Frequency:** Adjustable (typically up to 1MHz)  
- **Duty Cycle:** Up to 100%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The ISL6551IR is a multi-phase PWM controller designed for high-efficiency voltage regulation in power supply applications, particularly for microprocessors and other high-current DC-DC converters. It supports multi-phase operation for improved thermal performance and ripple reduction.  

### **Features:**  
- **Multi-Phase Operation:** Supports 2 to 4 phases for balanced current sharing.  
- **Precision Voltage Regulation:** Adjustable output with tight tolerance.  
- **Overcurrent Protection:** Monitors and protects against excessive current.  
- **Overvoltage Protection (OVP):** Safeguards the load from voltage spikes.  
- **Programmable Switching Frequency:** Allows optimization for efficiency and component size.  
- **Differential Remote Sensing:** Ensures accurate voltage regulation at the load.  
- **Power-Good Output:** Provides a signal indicating stable output voltage.  
- **Soft-Start Function:** Prevents inrush current during startup.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed application notes, refer to the official datasheet from Renesas Electronics.

Application Scenarios & Design Considerations

ZVS Full Bridge PWM Controller

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