The TD62318AFG is a high-voltage, high-current source driver array integrated circuit produced by Toshiba Semiconductor and Storage. It's designed to drive inductive loads like relays, solenoids, and stepper motors, commonly used in industrial and consumer electronic applications. A key feature is its built-in clamping diodes, which protect the device from voltage surges that occur when switching inductive loads.

Applications

• Relay drivers
• Solenoid drivers
• Stepping motor drivers
• LED display drivers
• Logic buffers
• Power drivers

Features

• High output voltage: 50 V
• High output current: 500 mA per channel
• Built-in clamping diodes for inductive load protection
• Input compatible with TTL and 5 V CMOS logic
• Low saturation voltage outputs
• 8 independent driver channels

Benefits

• Provides a robust interface between low-voltage logic and high-voltage/high-current loads.
• Simplifies circuit design by integrating clamping diodes, reducing external component count.
• Saves board space and cost due to integrated functionality.
• Ensures reliable operation even when driving inductive loads.
• Easy to interface with various types of logic circuits.

Additional Details

The TD62318AFG consists of eight independent source driver channels. Each channel includes an input, an output, and a clamping diode connected between the output and the supply voltage. These diodes are essential for suppressing voltage spikes caused by inductive loads during switching. The device is compatible with both TTL and 5V CMOS logic levels, making it versatile for different control circuits. The low saturation voltage ensures efficient power delivery to the load with minimal power loss. The TD62318AFG comes in a 20-pin SOL (Small Outline Large) package. The operating temperature range is typically -40°C to +85°C.