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TDA4841 from PHILIPS

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TDA4841

Manufacturer: PHILIPS, PHI

I2C-bus autosync deflection controller for PC monitors

Partnumber Manufacturer Quantity Availability
TDA4841 PHILIPS, PHI 4611 In Stock

Description and Introduction

I2C-bus autosync deflection controller for PC monitors The TDA4841 is a power supply control IC manufactured by PHILIPS (now NXP Semiconductors). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Function:** Power supply control IC for switch-mode power supplies (SMPS)  
- **Package:** Typically available in DIP (Dual In-line Package) or SO (Small Outline)  
- **Operating Voltage Range:** Designed for standard SMPS applications (exact range depends on application circuit)  
- **Switching Frequency:** Adjustable, optimized for high-efficiency power conversion  
- **Protection Features:** Includes overvoltage protection (OVP), undervoltage lockout (UVLO), and overcurrent protection (OCP)  

### **Descriptions:**
- The TDA4841 is a dedicated IC for controlling switch-mode power supplies in monitors, TVs, and other electronic devices.  
- It integrates key functions such as pulse-width modulation (PWM) control, feedback regulation, and protection mechanisms.  
- Designed for flyback or forward converter topologies.  

### **Features:**
- **PWM Control:** Adjustable duty cycle for efficient power regulation.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Synchronization Capability:** Can be synchronized to an external clock signal.  
- **Error Amplifier:** Built-in for precise voltage regulation.  
- **Low Standby Power Consumption:** Optimized for energy-efficient designs.  

For exact electrical characteristics and application details, refer to the official datasheet from NXP/PHILIPS.

Application Scenarios & Design Considerations

I2C-bus autosync deflection controller for PC monitors

Alternative Part Number

  • LM1203N --: Video amplifier IC in the same class as the TDA4841, widely available and often used as a substitute in CRT monitor video stages.
  • STV9425 --: CRT video preamplifier/OSD IC with comparable function and pinout family, commonly cross-referenced for TDA48xx video processors.
  • LM1269 --: Integrated RGB video preamplifier with OSD support, functionally similar to the TDA4841 and suitable for monitor video signal processing.

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