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TDA4856/V6 from NXP,NXP Semiconductors

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TDA4856/V6

Manufacturer: NXP, PHI, PHILIPS

TDA4856; I²C-bus autosync deflection controller for PC monitors

Partnumber Manufacturer Quantity Availability
TDA4856/V6,TDA4856V6 NXP, PHI, PHILIPS 28284 In Stock

Description and Introduction

TDA4856; I²C-bus autosync deflection controller for PC monitors The TDA4856/V6 is a horizontal and vertical deflection controller IC manufactured by Philips (PHI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** Philips (PHI)  
- **Type:** Horizontal and Vertical Deflection Controller  
- **Package:** Typically available in DIP (Dual In-line Package) or SO (Small Outline)  
- **Operating Voltage:** Typically operates at a supply voltage of **10V to 16V**  
- **Horizontal Frequency Range:** Supports **15 kHz to 150 kHz**  
- **Vertical Frequency Range:** Supports **50 Hz to 160 Hz**  
- **Protection Features:** Includes X-ray protection, overvoltage protection, and thermal shutdown  

### **Descriptions:**  
The TDA4856/V6 is designed for use in **multisync monitors** and **CRT-based display systems**. It provides control signals for both horizontal and vertical deflection circuits, ensuring stable and synchronized display output. The IC integrates multiple functions, including synchronization processing, deflection control, and protection mechanisms.  

### **Features:**  
- **Horizontal Deflection Control:**  
  - Adjustable horizontal frequency  
  - Phase-locked loop (PLL) for stable synchronization  
  - Soft start/stop function  
- **Vertical Deflection Control:**  
  - Adjustable vertical frequency and amplitude  
  - Vertical drive signal generation  
- **Synchronization Processing:**  
  - Supports composite sync and separate H/V sync inputs  
  - Automatic polarity detection  
- **Protection Circuits:**  
  - X-ray protection (prevents excessive HV)  
  - Overvoltage and undervoltage lockout  
  - Thermal shutdown  

This information is based solely on the known specifications and features of the TDA4856/V6 from Philips (PHI).

Application Scenarios & Design Considerations

TDA4856; I²C-bus autosync deflection controller for PC monitors

Alternative Part Number

  • LA7851 --: Deflection/horizontal-vertical sync controller IC for CRT monitors, functionally comparable to the TDA4856 in monitor deflection applications.
  • STV7778 --: CRT monitor deflection processor with similar horizontal/vertical drive and geometry correction functions, suitable as a cross-series substitute.
  • TDA9109 --: Deflection processor IC used in CRT monitor chassis with comparable sync and drive features, though pinout and parameters should be verified.
  • KA2131 --: Monitor deflection/horizontal-vertical sync controller in the same application class as the TDA4856, commonly used as a substitute in CRT monitor chassis.
  • LM1296 --: CRT monitor deflection control IC offering comparable horizontal/vertical drive functions for legacy monitor designs.
  • TDA4856 --: Same base device (horizontal/vertical deflection controller) without the /V6 variant suffix; NXP is the successor brand to Philips Semiconductors and the part is functionally equivalent.
  • TDA4858 --: Closely related deflection controller in the same TDA485x family with similar pinout and function; often used as a drop-in substitute in CRT monitor designs.
  • TDA4859 --: Another member of the TDA485x deflection processor family with comparable features; usable as an alternative when the exact /V6 variant is unavailable, subject to pinout verification.

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