The TD62103F is a high-voltage, high-current Darlington transistor array manufactured by Toshiba Semiconductor and Storage. It is designed for driving inductive loads such as relays, solenoids, and lamps directly from logic circuits. This device integrates seven NPN Darlington transistor pairs, each capable of sinking up to 500mA. The TD62103F offers a convenient and efficient solution for interfacing low-power logic signals to high-power loads.

Applications

• Relay drivers
• Solenoid drivers
• Lamp drivers
• Stepper motor drivers
• Logic buffers
• Line drivers
• High-side switches

Features

• Seven NPN Darlington transistor pairs in a single package
• High output voltage: 50V
• High output current: 500mA per channel
• Input clamp diodes
• TTL and 5V CMOS logic compatible inputs
• Low saturation voltage
• Available in a surface-mount package (SOP-16)

Benefits

• Simplified circuit design: Integrates multiple Darlington transistors into a single package, reducing component count and board space.
• Direct interface to logic circuits: Compatible with TTL and 5V CMOS logic levels, eliminating the need for external level shifters.
• High output power: Capable of driving a wide range of inductive loads, such as relays, solenoids, and lamps.
• Improved reliability: Integrated clamp diodes protect the transistors from inductive kickback, enhancing system reliability.
• Reduced power dissipation: Low saturation voltage minimizes power dissipation, improving efficiency.

Additional Details

The TD62103F features input clamp diodes that provide protection against inductive kickback when driving inductive loads. These diodes effectively suppress voltage spikes generated when the load is switched off, preventing damage to the transistors. The device operates over a wide temperature range, making it suitable for various industrial and automotive applications. The SOP-16 package allows for easy surface mounting and integration into automated assembly processes. The collector-emitter saturation voltage is typically 1.6V at an output current of 350mA. The input current is typically 500μA. The device also offers high current transfer ratio.