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ISL6721A from HARRIS,Intersil

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ISL6721A

Manufacturer: HARRIS

Flexible Single-ended Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
ISL6721A HARRIS 300 In Stock

Description and Introduction

Flexible Single-ended Current Mode PWM Controller The ISL6721A is a PWM controller manufactured by Harris Semiconductor (now part of Intersil, which was later acquired by Renesas Electronics). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Harris Semiconductor  
- **Type:** PWM (Pulse-Width Modulation) Controller  
- **Topology:** Supports forward, flyback, and push-pull configurations  
- **Operating Frequency:** Adjustable, typically up to 1MHz  
- **Input Voltage Range:** Typically 8V to 20V (bootstrap operation)  
- **Output Drive:** High-current totem-pole output (suitable for driving MOSFETs)  
- **Duty Cycle Range:** Up to 50% (push-pull) or higher in other topologies  
- **Protection Features:** Under-voltage lockout (UVLO), over-current protection  
- **Package:** Typically available in PDIP or SOIC packages  

### **Descriptions:**
The ISL6721A is a versatile PWM controller designed for DC-DC power supply applications. It provides precise control for switching power converters, supporting various topologies such as forward, flyback, and push-pull configurations. The IC includes an onboard oscillator, error amplifier, and high-current output driver for efficient power MOSFET switching.

### **Features:**
- Adjustable switching frequency  
- Precision reference voltage (typically 5V)  
- Soft-start capability for controlled startup  
- Current-mode control for improved transient response  
- Under-voltage lockout (UVLO) protection  
- High noise immunity  
- Low standby power consumption  

This information is based on the original Harris Semiconductor datasheet for the ISL6721A. For exact details, refer to the official documentation.

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