PA5026: Constant SINK Curr. LED Driver

Photo of PA5026: Constant SINK Curr. LED Driver

Features

  • 16-channel constant–current output.
  • Output constant current: 2 - 80mA
  • Current accuracy (All output ON)
  • Between BITS ±1%
  • Between IC’s ±1%
  • Output Current 2~80mA adjustable
  • Output current adjustable through an external resistor.
  • Interleave time delay of output channel
  • Fast response for output port (tr/td=50ns)
  • 25MHz clock frequency

General Description

PA5026 contains a serial buffer and data latches which convert serial input data into parallel output format. At PA5026 output stage, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LED’s within a large range of Vf variations.

PA5026 provides users with great flexibility and device performance in their system design for LED display applications, e.g. LED panels.
Users may adjust the output current from 2 mA to 80 mA through an external resistor, Rext, which gives them the flexibility in controlling the light intensity of LED’s.

PA5026 guarantees a maximum of 17V at the output port.

The high clock frequency, 25 MHz, satisfies the system requirements of high volume data transmission.

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