TIP2955 Datasheet: PNP Power Transistor – Technical Specifications and Applications

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Introduction

The TIP2955 is a high-power PNP bipolar junction transistor (BJT) designed for use in high-performance and high-reliability applications. Manufactured using advanced silicon technology, it is widely utilized in circuits requiring robust power handling capabilities, such as audio amplifiers, power supplies, and motor control systems. The transistor is housed in a durable TO-247 package, allowing efficient heat dissipation and making it suitable for demanding environments.

With a collector-emitter voltage (Vce) rating of -100V and a collector current (Ic) capacity of up to -15A, the TIP2955 can handle significant voltage and current loads. It is complemented by its NPN counterpart, the TIP3055, for creating complementary push-pull configurations in audio and power amplifier designs.

This transistor features high current gain (hFE) for efficient operation and low saturation voltage for reduced power losses. Its thermal stability and reliability make it a popular choice among designers looking for cost-effective solutions in medium- and high-power circuits.

In addition to its performance, the TIP2955 is easy to implement in designs, making it a go-to component for professionals and hobbyists alike. Its versatility and dependability ensure its continued use in a broad range of applications.

Key Features of the TIP2955

1. High Collector-Emitter Voltage (Vce):
   • Maximum voltage rating of -100V, allowing operation in medium- to high-voltage circuits.
2. High Collector Current (Ic):
   • Maximum continuous current rating of -15A, making it suitable for high-current applications.
3. Power Dissipation (Pd):
   • Maximum power dissipation of 90W (at 25°C), ensuring reliable operation under heavy loads with proper heat sinking.
4. Low Saturation Voltage (Vce(sat)):
   • Ensures efficient operation with reduced power losses.
5. High Current Gain (hFE):
   • Provides a typical gain range of 20 to 70, facilitating effective amplification with minimal base drive requirements.
6. Complementary Pair:
   • Designed to work alongside the NPN counterpart TIP3055, ideal for push-pull and complementary output stages.
7. Thermal Stability:
   • Offers reliable performance under varying temperature conditions, enhancing its suitability for rugged environments.
8. TO-247 Package:
   • Ensures efficient heat dissipation and durability, allowing it to handle high power levels with proper cooling.
9. Wide Operating Temperature Range:
   • Operates effectively between -65°C to 150°C, making it suitable for diverse applications.
10. Versatility:
    • Suitable for applications such as audio amplifiers, motor controls, power regulators, and switching circuits.

Pinout of TIP2955

 

Pin Number	Pin Function
1	Base (B)
2	Collector (C)
3	Emitter (E)

Explanation:

• Base (B): The control terminal that regulates the flow of current between the collector and emitter.
• Collector (C): The terminal through which the main current enters the transistor.
• Emitter (E): The terminal through which the main current exits the transistor.

Applications

1. Audio Amplifiers
2. Power Supplies
3. Motor Drivers
4. Switching Circuits
5. Voltage Regulators
6. Inverter Circuits

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