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UC2844DTR from TI,TI,Texas Instruments

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15.625ms

UC2844DTR

Manufacturer: TI,TI

Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2844DTR TI,TI 7500 In Stock

Description and Introduction

Current-Mode PWM Controller ### Manufacturer:  
Texas Instruments (TI)  

### Part Number:  
UC2844DTR  

### Specifications:  
1. **Type**: Current Mode PWM Controller  
2. **Topology**: Flyback, Forward, Boost, Buck  
3. **Output Configuration**: Single  
4. **Number of Outputs**: 1  
5. **Switching Frequency**: Up to 500 kHz  
6. **Duty Cycle (Max)**: 50%  
7. **Supply Voltage (Vcc)**: 8.4V to 30V  
8. **Start-Up Voltage**: 16V (typical)  
9. **UVLO (Under-Voltage Lockout)**: On Threshold: 16V (typ), Off Threshold: 10V (typ)  
10. **Operating Temperature Range**: -40°C to +85°C  
11. **Package**: SOIC-8 (DTR denotes tape and reel packaging)  
12. **Output Current**: 1A (peak)  
13. **Error Amplifier Gain Bandwidth**: 1 MHz (typ)  
14. **Current Sense Input Voltage**: 1V (max)  

### Descriptions:  
The UC2844DTR is a high-performance current-mode PWM controller from Texas Instruments. It is designed for offline and DC-DC converter applications, providing precise regulation and high efficiency. The device features an adjustable switching frequency, cycle-by-cycle current limiting, and a built-in under-voltage lockout (UVLO) for reliable operation.  

### Features:  
- **Current-Mode Control**: Improves loop response and simplifies compensation.  
- **Automatic Feed-Forward Compensation**: Enhances line regulation.  
- **Latching PWM**: Ensures cycle-by-cycle current limiting.  
- **Internal Trimmed Bandgap Reference**: Provides stable voltage regulation.  
- **Low Start-Up Current**: Typically 0.5mA.  
- **High-Current Totem Pole Output**: Suitable for driving power MOSFETs directly.  
- **Undervoltage Lockout (UVLO)**: Ensures proper operation under low-voltage conditions.  
- **SOIC-8 Package**: Compact and suitable for surface-mount applications.  

This information is based on the manufacturer's datasheet for the UC2844DTR.

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