The TD62478P is a high-voltage, high-current sink driver array from Toshiba Semiconductor and Storage. This device is designed to drive inductive loads such as relays, solenoids, and stepping motors. It consists of seven independent drivers, each capable of sinking a significant amount of current. The integrated protection circuitry ensures reliable operation even under demanding conditions.

Applications:

• Relay Drivers: Used to control relays in various applications.
• Solenoid Drivers: Employed to drive solenoids in industrial and automotive systems.
• Stepping Motor Drivers: Integrated into stepping motor control circuits.
• Lamp Drivers: Used to control lamps and indicators.
• LED Drivers: Can be used to drive multiple LEDs in display applications.
• Automotive Applications: Found in automotive control systems for driving various actuators.

Features:

• Seven Independent Drivers: Provides seven channels for driving multiple loads.
• High Output Voltage: Supports high voltage loads.
• High Output Current: Capable of sinking high current.
• Input Protection Diodes: Protects the inputs from overvoltage conditions.
• Output Clamp Diodes: Protects the outputs from inductive kickback.
• TTL and CMOS Compatible Inputs: Interfaces easily with TTL and CMOS logic circuits.

Benefits:

• Versatile: Suitable for a wide range of inductive load driving applications.
• Reliable: Built-in protection features ensure reliable operation.
• Easy to Use: TTL and CMOS compatible inputs simplify interfacing.
• Space-Saving: Integrates multiple drivers into a single package, reducing PCB size.

Additional Details:

The TD62478P is typically packaged in a DIP (Dual In-line Package). Each driver can sink up to 500 mA of current with a maximum output voltage rating of 50 V. The input control voltage is typically 5V. The operating temperature range is -40°C to +85°C. The device features built-in protection against overvoltage and inductive kickback, making it a robust and reliable solution for driving inductive loads. The internal clamp diodes are crucial for protecting the driver from voltage spikes generated when the inductive load is switched off.