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UC2846DW from TI/UNITRODE,Texas Instruments

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15.625ms

UC2846DW

Manufacturer: TI/UNITRODE

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2846DW TI/UNITRODE 17 In Stock

Description and Introduction

Current Mode PWM Controller The UC2846DW is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI) and originally developed by Unitrode.  

### **Specifications:**  
- **Control Method:** Current-mode PWM  
- **Topology:** Supports flyback, forward, push-pull, and other converter designs  
- **Operating Frequency:** Up to 500 kHz  
- **Output Configuration:** Dual totem-pole outputs (suitable for driving power MOSFETs)  
- **Supply Voltage (VCC):** 8V to 40V  
- **Maximum Duty Cycle:** Adjustable, typically up to 50% (push-pull) or 100% (single-ended)  
- **Current Sense Input:** Includes a current-sense comparator with adjustable threshold  
- **Soft-Start:** Programmable soft-start function  
- **Error Amplifier:** Onboard error amplifier with reference voltage  
- **Undervoltage Lockout (UVLO):** Built-in UVLO for reliable startup  
- **Package:** 16-pin SOIC (DW package)  

### **Descriptions and Features:**  
- Designed for high-efficiency power supply applications  
- Provides precise current-mode control for improved loop response  
- Includes a shutdown feature for system protection  
- Features cycle-by-cycle current limiting  
- Adjustable oscillator frequency with external timing components  
- Low startup and operating current  

The UC2846DW is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and industrial power systems.  

(Source: Texas Instruments/Unitrode datasheet)

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