The TD62164AF is a high-voltage source driver manufactured by Toshiba Semiconductor and Storage. It's part of the TD6216x series of source drivers, designed to provide a convenient interface between low-level logic signals and higher-voltage loads. Specifically, this driver is intended to *source* current, meaning it provides the positive voltage to the load, rather than sinking current to ground like the TD6210x series.

Applications

• LED matrix displays
• Vacuum fluorescent displays (VFDs)
• Plasma display panels (PDPs)
• Level shifters
• Any application requiring a high-voltage, current-sourcing driver

Features

• 8-channel source driver
• High output voltage: Typically up to 80V, check datasheet for specific value
• Output current: Refer to the datasheet for the specified current sourcing capability per channel. Typically in the tens of milliamps.
• Logic compatible input (TTL, CMOS)
• Built-in shift register for serial input
• Output enable control
• Available in surface mount package (e.g., SSOP)

Benefits

• Simplified display driving: Provides a direct interface between microcontrollers and high-voltage displays.
• Reduced component count: Integrates multiple drivers into a single package.
• Space saving: Surface mount packages enable compact designs.
• Easy control: Shift register allows for serial control, minimizing microcontroller pin usage.

Additional Details

The TD62164AF utilizes a shift register to receive data serially, which then controls the outputs. This minimizes the number of control lines needed from the microcontroller. The specific voltage and current capabilities should be verified in the datasheet as they are critical for application suitability. Proper heat sinking may be required depending on the load and operating conditions. The output enable pin provides a global control over all outputs, allowing for blanking or dimming functionality. It's crucial to consult the datasheet for specific timing requirements for the shift register and output enable signals. Pay close attention to the thermal characteristics of the package to prevent overheating under high load conditions. Consider external current limiting resistors if needed, depending on the application.