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TLP553 from TOSHIBA

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TLP553

Manufacturer: TOSHIBA, TOS

Photocoupler (photo-IC output)

Partnumber Manufacturer Quantity Availability
TLP553 TOSHIBA, TOS 113 In Stock

Description and Introduction

Photocoupler (photo-IC output) The TLP553 is an optocoupler manufactured by Toshiba. Below are its key specifications, descriptions, and features based on available data:  

### **Specifications:**  
- **Isolation Voltage (Vrms):** 3750V  
- **Collector-Emitter Voltage (VCEO):** 80V  
- **Collector Current (IC):** 50mA  
- **Current Transfer Ratio (CTR):** 50% (min) at IF = 5mA  
- **Input Forward Current (IF):** 25mA (max)  
- **Forward Voltage (VF):** 1.25V (typ) at IF = 5mA  
- **Turn-On Time (ton):** 3μs (max)  
- **Turn-Off Time (toff):** 4μs (max)  
- **Operating Temperature Range:** -55°C to +110°C  

### **Description:**  
The TLP553 is a high-speed photocoupler (optocoupler) that consists of a GaAlAs infrared LED optically coupled to a phototransistor. It provides electrical isolation between input and output circuits, making it suitable for noise suppression and signal transmission in various applications.  

### **Features:**  
- **High Isolation Voltage:** 3750Vrms ensures reliable isolation.  
- **High-Speed Switching:** Fast response times (ton/toff) for efficient signal transmission.  
- **Wide Operating Temperature Range:** Suitable for harsh environments (-55°C to +110°C).  
- **Compact Package:** Available in a 4-pin DIP (Dual In-line Package).  
- **Low Input Current Requirement:** Efficient operation with low forward current.  

For detailed datasheets or additional technical parameters, refer to Toshiba's official documentation.

Application Scenarios & Design Considerations

Photocoupler (photo-IC output)

Alternative Part Number

  • PC817 --: Industry-standard general-purpose optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in many circuits.
  • EL817 --: Direct functional equivalent optocoupler with comparable isolation voltage and current transfer ratio, often used as a drop-in replacement.
  • LTV-817 --: Similar single-channel phototransistor optocoupler offering comparable isolation and CTR specifications at competitive cost.

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