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TDE1787DP from STM,ST Microelectronics

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TDE1787DP

Manufacturer: STM, ST

INTERFACE CIRCUIT (RELAY AND LAMP

Partnumber Manufacturer Quantity Availability
TDE1787DP STM, ST 153 In Stock

Description and Introduction

INTERFACE CIRCUIT (RELAY AND LAMP The part **TDE1787DP** is manufactured by **STMicroelectronics (ST)**. Below are the specifications, descriptions, and features based on available factual information:

### **Specifications:**
- **Type:** Dual NPN/PNP Resistor-Equipped Transistor (RET)  
- **Configuration:** Dual NPN + PNP Darlington transistors with resistors  
- **Package:** PowerSO-10  
- **Maximum Collector-Emitter Voltage (VCEO):**  
  - NPN: 50V  
  - PNP: -50V  
- **Maximum Collector Current (IC):**  
  - NPN: 500mA  
  - PNP: -500mA  
- **Power Dissipation (Ptot):** 1W  
- **DC Current Gain (hFE):** Typically 1000 (for both NPN and PNP)  
- **Integrated Base-Emitter Resistors:** Included for simplified drive circuitry  

### **Descriptions:**
- The **TDE1787DP** is a dual Darlington transistor array with built-in base-emitter resistors, designed for high-current switching and amplification applications.  
- It is suitable for driving relays, lamps, motors, and other inductive loads.  
- The device is optimized for low-power control applications where space-saving and reliability are key considerations.  

### **Features:**
- **Dual Darlington Configuration:** Combines NPN and PNP transistors in a single package.  
- **Integrated Resistors:** Simplifies external circuitry by eliminating the need for additional base resistors.  
- **High Current Gain (hFE):** Ensures efficient signal amplification.  
- **Compact PowerSO-10 Package:** Suitable for space-constrained designs.  
- **Reliable Switching Performance:** Designed for industrial and automotive applications.  

For detailed electrical characteristics and application notes, refer to the official **STMicroelectronics datasheet** for **TDE1787DP**.

Application Scenarios & Design Considerations

INTERFACE CIRCUIT (RELAY AND LAMP

Alternative Part Number

  • UAA2016 --: Zero-voltage switching relay driver IC with similar function and drive capability, widely available and pin-compatible in typical applications.
  • CA3059 --: Classic zero-crossing relay driver IC offering comparable output drive and control features for AC load switching.
  • TCA785 --: Phase-control and relay driver IC with similar trigger/drive functionality, suitable as a functional substitute in many designs.
  • MC1455 --: General-purpose timer IC that can implement the timing and relay-driver function with external circuitry, widely available and pin-compatible in many designs.

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