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UC3846Q from TI,Texas Instruments

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16.113ms

UC3846Q

Manufacturer: TI

Current Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC3846Q TI 75 In Stock

Description and Introduction

Current Mode PWM Controller The UC3846Q is a current-mode PWM controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 8.5V to 40V  
- **Operating Frequency:** Up to 500kHz  
- **Output Current (Peak):** 500mA (sink/source)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Reference Voltage:** 5.1V (±1%)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-pin SOIC (Q)  

### **Descriptions:**  
The UC3846Q is a high-performance fixed-frequency pulse-width modulation (PWM) controller designed for power supply applications. It operates in current-mode control, providing precise regulation and improved transient response. The device includes features such as cycle-by-cycle current limiting, soft-start control, and synchronization capability.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Programmable Oscillator:** Allows frequency adjustment via external components.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Synchronization Capability:** Enables multiple controllers to operate in phase.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation within the input voltage range.  
- **Error Amplifier:** High-gain bandwidth for accurate feedback control.  
- **Dual Alternating Outputs:** Suitable for push-pull and half-bridge topologies.  

This information is based solely on the manufacturer's datasheet and specifications.

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