STMicroelectronics NPN Bipolar Transistor Array, 50V 500mA, SOIC

The STMicroelectronics NPN Bipolar Transistor Array is a high-performance integrated circuit designed for demanding switching and driving applications. This robust Darlington array contains seven open-collector Darlington pairs with common emitters, providing a powerful and efficient solution for controlling various loads.

Engineered for reliability, the array integrates suppression diodes across each driver, offering built-in protection for inductive loads such as relays and motors. This feature simplifies circuit design and enhances the long-term durability of both the driver and the connected components. The outputs can be paralleled to achieve higher current capability, making it adaptable to a wide range of power requirements.

Key Features & Applications

Compatible with TTL, CMOS, PMOS, and DTL logic levels, this transistor array ensures easy interfacing with digital control circuits. The intelligent pinout, with input pins placed opposite the output pins, significantly simplifies PCB layout and routing, saving valuable design time and reducing board complexity.

This versatile driver is ideally suited for a multitude of applications, including relay drivers, stepper motor controllers, DC brushed motor drivers, and lamp drivers. It is also an excellent choice for driving displays (both LED and gas discharge), serving as a line driver, or acting as a logic buffer in digital systems.

Specifications

• Configuration: Seven Darlington pairs, open-collector with common emitters
• Output Voltage: 50 V
• Output Current: 500 mA per channel
• Logic Compatibility: TTL, CMOS, PMOS, DTL
• Special Feature: Integrated suppression diodes for inductive loads
• Special Feature: Outputs can be paralleled for higher current
• Special Feature: Optimised pinout for simplified PCB layout
• Package / Case Style: SOIC