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UC2845BD1013TR from ST,ST Microelectronics

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UC2845BD1013TR

Manufacturer: ST

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
UC2845BD1013TR ST 7500 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC2845BD1013TR is a high-performance current-mode PWM controller manufactured by STMicroelectronics.  

### **Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Type:** Current-Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Output Configuration:** Single  
- **Number of Outputs:** 1  
- **Switching Frequency:** Up to 500 kHz  
- **Duty Cycle (Max):** 100%  
- **Supply Voltage (Vcc):** 8.5V to 30V  
- **Supply Current (Max):** 11 mA  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UC2845BD1013TR is designed for DC-DC converter and power supply applications. It features high-speed switching, precise duty cycle control, and current-mode operation for improved loop stability. It includes under-voltage lockout (UVLO), cycle-by-cycle current limiting, and a totem-pole output stage for driving power MOSFETs.  

### **Features:**  
- **Current-Mode Control** for improved transient response  
- **Automatic Feed-Forward Compensation**  
- **Under-Voltage Lockout (UVLO)** with hysteresis  
- **Internal Trimmed Bandgap Reference** (5V ±1%)  
- **High-Current Totem-Pole Output** (1A peak)  
- **Pulse-by-Pulse Current Limiting**  
- **Low Start-Up Current** (<1mA)  
- **500 kHz Oscillator Frequency**  
- **SOIC-8 Package** for compact designs  

This device is commonly used in offline and DC-DC converters, power supplies, and battery chargers.

Partnumber Manufacturer Quantity Availability
UC2845BD1013TR STM 127 In Stock

Description and Introduction

HIGH PERFORMANCE CURRENT MODE PWM CONTROLLER The UC2845BD1013TR is a high-performance current-mode PWM controller manufactured by STMicroelectronics (STM).  

### **Specifications:**  
- **Type:** Current Mode PWM Controller  
- **Topology:** Flyback, Forward, Boost, Buck  
- **Input Voltage (VCC):** 8.5V to 30V  
- **Operating Frequency:** Up to 500kHz  
- **Duty Cycle:** 0% to 50% (adjustable)  
- **Output Current (Source/Sink):** 1A / 1A  
- **Reference Voltage:** 5V (±1%)  
- **UVLO (Undervoltage Lockout):** On: 8.4V (typ), Off: 7.6V (typ)  
- **Package:** SO-8 (Surface Mount)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UC2845BD1013TR is designed for DC-DC converter applications, providing precise control over switching power supplies. It features a trimmed oscillator, temperature-compensated reference, high-gain error amplifier, and current-sensing comparator.  

### **Features:**  
- **Current-Mode Operation** for improved loop response  
- **Automatic Feed-Forward Compensation**  
- **Latching PWM** for cycle-by-cycle current limiting  
- **Internal Soft-Start**  
- **Low Start-Up Current** (<1mA)  
- **Under-Voltage Lockout (UVLO)** with hysteresis  
- **High-Current Totem Pole Output** for driving power MOSFETs  
- **500kHz Oscillator Frequency** with dead-time control  

This device is commonly used in power supplies, battery chargers, and industrial control systems.

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