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UC2844BD1 from ST,ST Microelectronics

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UC2844BD1

Manufacturer: ST

High performance current mode PWM controller

Partnumber Manufacturer Quantity Availability
UC2844BD1 ST 3000 In Stock

Description and Introduction

High performance current mode PWM controller The UC2844BD1 is a high-performance current-mode PWM controller manufactured by STMicroelectronics.  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage (VCC):** 8V to 30V (operating range)  
- **Under-Voltage Lockout (UVLO):** 7.9V (turn-on), 7.0V (turn-off)  
- **Switching Frequency:** Up to 500 kHz  
- **Output Drive Current:** ±1A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 1 MHz  
- **Current Sense Comparator Response Time:** 100 ns  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions and Features:**  
- Designed for offline and DC-DC converter applications  
- Precise duty cycle control under current-mode operation  
- Automatic feed-forward compensation  
- Latching PWM for cycle-by-cycle current limiting  
- Internal trimmed bandgap reference (5V ±1%)  
- Low startup and operating current  
- High noise immunity  
- Internal soft-start capability  
- Compatible with voltage-mode operation  

The UC2844BD1 is commonly used in power supply designs, including flyback, forward, and boost converters.

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