The TD62781F is a high-voltage, high-current sink driver array manufactured by Toshiba Semiconductor and Storage. It serves as an interface between low-level logic signals and higher-power loads, providing multiple independent channels for flexible control applications.

Applications

• Driving relays (sinking configuration)
• Driving solenoids (sinking configuration)
• Driving stepper motors (sinking configuration)
• Driving LED displays (common anode configuration)
• Driving small DC motors (sinking configuration)

Features

• High output voltage: 50V (minimum)
• High output current: 350mA (maximum) per channel
• 8 independent channels
• TTL and 5V CMOS logic compatible inputs
• Integrated clamp diodes for inductive load protection
• Package: DIP-18 or similar through-hole package

Benefits

• Simplifies the interface between low-power control logic and high-power loads.
• Protects the driver from voltage transients caused by inductive loads, enhancing reliability.
• Reduces component count, simplifying board layout and lowering costs.
• Offers versatile control capabilities with multiple independent channels.
• Compatible with common TTL and CMOS logic levels.

Additional Details

The TD62781F incorporates internal clamp diodes, which are crucial for handling inductive loads to prevent damage from voltage spikes. The inputs are designed to be compatible with both TTL and 5V CMOS logic. Ensure proper thermal management to avoid exceeding the maximum power dissipation limits, especially when driving multiple channels at high current simultaneously. Consult the datasheet for detailed electrical characteristics, timing parameters, and thermal considerations. The operating temperature range typically spans from -40°C to +85°C. It functions as a sink driver, connecting the load to ground when active.