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A6277 - 8-Bit Serial Input Constant-Current Latched LED Driver

General Description

The A6277 is specifically designed for LED display applications.

Each BiCMOS device includes an 8-bit CMOS shift register, accompanying data latches, and eight NPN constant-current sink drivers.

The CMOS shift register and latches allow direct interfacing with microprocessor-based systems.

Key Features

  • Up to 150 mA constant-current outputs.
  • Undervoltage lockout.
  • Low-power CMOS logic and latches.
  • High data input rate.
  • Similar to Toshiba® TD62715FN.
  • High/low output current function.
  • Digital dimming control Package: 20-pin SOICW (suffix LW).

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The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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A6277 8-Bit Serial Input Constant-Current Latched LED Driver Features and Benefits ▪ Up to 150 mA constant-current outputs ▪ Undervoltage lockout ▪ Low-power CMOS logic and latches ▪ High data input rate ▪ Similar to Toshiba® TD62715FN ▪ High/low output current function ▪ Digital dimming control Package: 20-pin SOICW (suffix LW) Description The A6277 is specifically designed for LED display applications. Each BiCMOS device includes an 8-bit CMOS shift register, accompanying data latches, and eight NPN constant-current sink drivers. The CMOS shift register and latches allow direct interfacing with microprocessor-based systems. With a 5 V logic supply, typical serial data-input rates are up to 20 MHz. The LED drive current is determined by the user selection of a single resistor.