TIP107

Product Overview
The STMicroelectronics TIP107 is an NPN Darlington power transistor designed for high-current switching and amplification applications. It combines two transistors in a Darlington configuration, providing high current gain while handling significant collector currents and voltages. TIP107 is optimized for use in power regulation, motor control, relay driving, and other applications requiring robust switching performance.

Electrical Characteristics

* Collector-Emitter Voltage (VCEO): 100 V maximum
* Collector-Base Voltage (VCBO): 100 V maximum
* Emitter-Base Voltage (VEBO): 5 V maximum
* Collector Current (IC): 8 A maximum continuous
* Peak Collector Current (ICM): 16 A non-repetitive
* Power Dissipation (PD): 125 W maximum at 25°C (derating with elevated temperature)
* DC Current Gain (hFE): 1000 to 4000 at IC = 3 A, VCE = 4 V
* Collector-Emitter Saturation Voltage (VCE(sat)): Typical 2.5 V at IC = 3 A, IB = 120 mA
* Base-Emitter Voltage (VBE(on)): Typical 2.5 V at IC = 3 A

Performance Features

* High Current Gain: The Darlington configuration provides extremely high DC gain, allowing low base drive currents to control large collector currents efficiently.
* High Collector Current Handling: With up to 8 A continuous collector current and 16 A peak current, TIP107 is suitable for demanding power applications.
* Thermal and Electrical Robustness: Capable of operating with junction temperatures up to 150°C. Features safe operating area curves for reliable switching under high voltage and high current conditions.
* Low Saturation Voltage for a Darlington: Provides efficient conduction while reducing power loss in high-current circuits.
* Fast Switching Capability: Suitable for medium-speed switching applications, including motor control and power regulation circuits.

Package and Mechanical Information

* Package Type: TO-220, standard for power transistors, allowing effective heat sinking.
* Package Dimensions: Standard TO-220 outline for mounting on heatsinks or through-hole PCB.
* Thermal Management: Recommended to use heatsinks for continuous operation near maximum current and power ratings.

Applications

* Relay and solenoid drivers in industrial and automotive systems
* Motor control and switching circuits
* Linear and switching power supply regulation
* High-current amplification in audio and signal applications
* General-purpose high-current switching and power control

Additional Notes
TIP107’s combination of high voltage tolerance, high current handling, and extremely high DC gain makes it particularly suitable for applications requiring minimal base drive to control significant loads. Designers should account for thermal derating at elevated temperatures and implement appropriate heatsinking for continuous high-power operation. Its Darlington configuration simplifies driver requirements in power switching circuits.