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UCC2921 from TI,Texas Instruments

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UCC2921

Manufacturer: TI

Latchable Negative Floating Single, Hot-Swap IC Industrial Temp.

Partnumber Manufacturer Quantity Availability
UCC2921 TI 1576 In Stock

Description and Introduction

Latchable Negative Floating Single, Hot-Swap IC Industrial Temp. The UCC2921 is a power management IC manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Category:** Power Management IC  
- **Type:** Power Supply Controller  
- **Output Type:** PWM Controller  
- **Topology:** Flyback, Forward, Push-Pull  
- **Switching Frequency:** Adjustable  
- **Input Voltage Range:** Typically 8V to 35V  
- **Output Voltage:** Configurable based on external components  
- **Current Limit:** Adjustable  
- **Operating Temperature Range:** Typically -40°C to +85°C  
- **Package Type:** PDIP, SOIC  

### **Descriptions:**  
The UCC2921 is a high-performance PWM controller designed for power supply applications. It provides precise control for various topologies, including flyback, forward, and push-pull converters. The device supports adjustable switching frequency and current limiting, making it suitable for a wide range of power supply designs.  

### **Features:**  
- Adjustable frequency operation  
- Programmable soft-start  
- Under-voltage lockout (UVLO) protection  
- Current-mode control for improved transient response  
- Error amplifier with reference for feedback control  
- High-current totem-pole output for driving power MOSFETs  
- Low standby power consumption  

For exact electrical characteristics and application details, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Latchable Negative Floating Single, Hot-Swap IC Industrial Temp.
Partnumber Manufacturer Quantity Availability
UCC2921 UCC 346 In Stock

Description and Introduction

Latchable Negative Floating Single, Hot-Swap IC Industrial Temp. The UCC2921 is a power management IC manufactured by Texas Instruments. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
Texas Instruments (TI)  

### **Part Number:**  
UCC2921  

### **Description:**  
The UCC2921 is a high-performance synchronous buck controller designed for DC-DC power conversion applications. It provides efficient voltage regulation with advanced control features.  

### **Key Features:**  
1. **Input Voltage Range:** Typically operates from 4.5V to 18V.  
2. **Output Voltage:** Adjustable via external components.  
3. **Switching Frequency:** Fixed or adjustable (typical range: 100kHz to 500kHz).  
4. **Control Method:** Voltage-mode PWM control.  
5. **Efficiency Optimization:** Adaptive dead-time control for reduced switching losses.  
6. **Protection Features:**  
   - Overcurrent protection (OCP)  
   - Undervoltage lockout (UVLO)  
   - Thermal shutdown  
7. **Synchronous Rectification:** Supports external MOSFETs for improved efficiency.  
8. **Package Options:** Available in SOIC and other surface-mount packages.  
9. **Operating Temperature Range:** Typically -40°C to +85°C.  

### **Applications:**  
- Point-of-load (POL) converters  
- Industrial power supplies  
- Telecom and networking equipment  
- Distributed power systems  

This information is based on the manufacturer's datasheet and technical documentation. For exact details, refer to the official Texas Instruments datasheet for the UCC2921.

Application Scenarios & Design Considerations

Latchable Negative Floating Single, Hot-Swap IC Industrial Temp.

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