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UCC3581D from TI/BB,Texas Instruments

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UCC3581D

Manufacturer: TI/BB

Micropower Voltage Mode PWM

Partnumber Manufacturer Quantity Availability
UCC3581D TI/BB 219 In Stock

Description and Introduction

Micropower Voltage Mode PWM The UCC3581D is a PWM controller IC manufactured by Texas Instruments (TI) and Burr-Brown (BB). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI) / Burr-Brown (BB)  
- **Type:** Current-Mode PWM Controller  
- **Package:** SOIC-8  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 12V (typical)  
- **Switching Frequency:** Adjustable (up to 500kHz)  
- **Duty Cycle Range:** 0% to 100%  
- **Output Current (Source/Sink):** 200mA (peak)  
- **Error Amplifier Bandwidth:** 5MHz (typical)  
- **Start-Up Current:** 100µA (typical)  

### **Descriptions:**
The UCC3581D is a high-performance current-mode PWM controller designed for switch-mode power supply applications. It provides precise regulation and protection features, making it suitable for DC-DC converters, offline power supplies, and battery chargers. The device integrates an error amplifier, oscillator, PWM comparator, and output driver for efficient power management.

### **Features:**
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.  
- **Error Amplifier with High Bandwidth:** Improves transient response.  
- **Synchronization Capability:** Supports external clock synchronization.  
- **Low Standby Current:** Improves efficiency in light-load conditions.  
- **Overcurrent Protection:** Enhances system reliability.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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