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UC3544N from UC

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UC3544N

Manufacturer: UC

Power Supply Supervisory Circuit

Partnumber Manufacturer Quantity Availability
UC3544N UC 66 In Stock

Description and Introduction

Power Supply Supervisory Circuit The UC3544N is a high-speed, high-current MOSFET driver manufactured by Unitrode (now part of Texas Instruments).  

### **Specifications:**  
- **Supply Voltage Range:** 10V to 20V  
- **Peak Output Current:** ±4A  
- **Propagation Delay:** 50ns (typical)  
- **Rise/Fall Time:** 25ns (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin DIP (Dual In-line Package)  

### **Descriptions and Features:**  
- Designed for driving power MOSFETs and IGBTs in high-frequency switching applications.  
- Provides high peak output current for fast switching.  
- Low propagation delay ensures precise timing control.  
- Under-voltage lockout (UVLO) protection prevents malfunction at low supply voltages.  
- Compatible with TTL and CMOS logic inputs.  
- Used in applications such as motor drives, power supplies, and inverters.  

For detailed electrical characteristics, refer to the official datasheet.

Application Scenarios & Design Considerations

Power Supply Supervisory Circuit
Partnumber Manufacturer Quantity Availability
UC3544N UNITRODE 40 In Stock

Description and Introduction

Power Supply Supervisory Circuit The UC3544N is a high-speed, dual-channel MOSFET driver manufactured by UNITRODE.  

### **Specifications:**  
- **Supply Voltage (VCC):** 10V to 20V  
- **Output Current (Peak):** ±4A  
- **Propagation Delay (Typical):** 25ns  
- **Rise/Fall Time (Typical):** 15ns (with 1nF load)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 14-Pin DIP (Dual In-Line Package)  

### **Descriptions and Features:**  
- Dual independent high-speed MOSFET drivers.  
- Low propagation delay for fast switching applications.  
- High peak output current for driving large MOSFETs or IGBTs.  
- Under-voltage lockout (UVLO) protection.  
- TTL/CMOS compatible inputs.  
- Cross-conduction prevention logic.  
- Suitable for switch-mode power supplies, motor drives, and other high-frequency applications.  

This information is based on UNITRODE's official documentation for the UC3544N.

Application Scenarios & Design Considerations

Power Supply Supervisory Circuit
Partnumber Manufacturer Quantity Availability
UC3544N TI 30 In Stock

Description and Introduction

Power Supply Supervisory Circuit The UC3544N is a high-speed PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Type:** High-speed PWM controller  
- **Operating Voltage Range:** Typically 8V to 35V  
- **Output Drive Current:** Up to 1A peak  
- **Switching Frequency:** Adjustable, typically up to 500kHz  
- **Duty Cycle Range:** Adjustable, typically 0% to 100%  
- **Package Type:** PDIP-16 (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions and Features:**  
- Designed for high-efficiency power conversion applications.  
- Includes an onboard oscillator for frequency control.  
- Features adjustable dead-time control for improved efficiency.  
- Provides soft-start functionality to reduce inrush current.  
- Includes under-voltage lockout (UVLO) protection.  
- Suitable for switch-mode power supplies (SMPS), DC-DC converters, and motor control.  
- Supports both voltage-mode and current-mode control.  

For detailed electrical characteristics and application notes, refer to the official TI datasheet.

Application Scenarios & Design Considerations

Power Supply Supervisory Circuit
Partnumber Manufacturer Quantity Availability
UC3544N TI/UNITRODE 14 In Stock

Description and Introduction

Power Supply Supervisory Circuit **UC3544N Manufacturer: TI/UNITRODE**  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI) / Unitrode  
- **Type:** High-Speed PWM Controller  
- **Package:** PDIP-16 (Plastic Dual In-Line Package)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** Up to 40V  
- **Output Current (Source/Sink):** 200mA (Peak)  
- **Switching Frequency:** Up to 500kHz  
- **Duty Cycle Range:** 0% to 100%  

### **Descriptions:**  
The UC3544N is a high-performance pulse-width modulation (PWM) controller designed for power supply applications. It features fast response times, precise duty cycle control, and protection mechanisms such as under-voltage lockout (UVLO) and soft-start capability.  

### **Features:**  
- **High-Speed Operation:** Optimized for switching frequencies up to 500kHz.  
- **Adjustable Dead-Time Control:** Prevents shoot-through in half-bridge/totem-pole configurations.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within safe voltage levels.  
- **Error Amplifier:** Includes an onboard high-gain op-amp for feedback loop control.  
- **Synchronous Operation:** Supports external clock synchronization.  
- **Current Limiting:** Protects against overcurrent conditions.  

This information is based on the manufacturer's datasheet. For detailed electrical characteristics and application circuits, refer to the official documentation.

Application Scenarios & Design Considerations

Power Supply Supervisory Circuit

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