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UC2845AQD8 from TI,Texas Instruments

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UC2845AQD8

Manufacturer: TI

Automotive Catalog Current-Mode PWM Controller

Partnumber Manufacturer Quantity Availability
UC2845AQD8 TI 77 In Stock

Description and Introduction

Automotive Catalog Current-Mode PWM Controller The UC2845AQD8 is a high-performance 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:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UC2845AQD8  
- **Package:** SOIC-8  
- **Topology:** Current-Mode PWM Controller  
- **Input Voltage Range:** 7.6V to 30V (UVLO thresholds: 7.6V (on), 7.0V (off))  
- **Operating Frequency:** Up to 500kHz  
- **Output Duty Cycle:** 0% to 100%  
- **Peak Output Current:** ±1A (source/sink)  
- **Error Amplifier Bandwidth:** 1MHz  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UC2845AQD8 is a fixed-frequency PWM controller optimized for high-performance DC-DC power supplies. It provides precise voltage regulation with current-mode control, improving loop response and simplifying compensation. The device includes an undervoltage lockout (UVLO) feature, ensuring reliable operation under low input voltage conditions.  

### **Features:**  
- **Current-Mode Control:** Enhances transient response and simplifies loop compensation.  
- **Programmable Oscillator:** Allows frequency adjustment with external components.  
- **Undervoltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **High-Current Totem Pole Output:** Directly drives power MOSFETs.  
- **Internal Trimmed Bandgap Reference:** Provides stable 5V reference (±1% accuracy).  
- **Cycle-by-Cycle Current Limiting:** Protects against overloads.  
- **Soft-Start Capability:** Reduces inrush current during startup.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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