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IT1412 － 16-bit Constant Current LED Sink Driver

Description

IT1412 is designed for LED displays. IT1412 contains a serial buffer and data latches which convert serial input data into parallel output format. At IT1412 output stage, sixteen regulated current ports are designed to provide uniform and constant current sinks for driving LEDs within a large range of VF variations.

IT1412 provides users with great flexibility and device performance while using IT1412 in their system design for LED display applications. Users may adjust the output current from 5mA to 45mA through an external resistor, Rext, which gives users flexibility in controlling the light intensity of LEDs. IT1412 guarantees to endure maximum 17V at the output port. The high clock frequency, 25MHz, also satisfies the system requirements of high volume data transmission.

Features

  • 16 constant-current output channels

  • Constant output current invariant to load voltage change:

    • 3~45mA@VDD=5V

    3~30mA@VDD=3.3V

  • Excellent channel output current accuracy: between channels: <±1.5%(typ.)/<±2.5%(max.); between ICs: <±2%(typ.)/<±3.5%(max.)

  • Output current adjusted with an external resistor

  • Fast response of output current, OEN(min.): 50ns

  • 25MHz clock frequency

  • Maximum output terminal voltage: 17V

  • 3V~5.5V Supply Voltage

　

　

Technology Information:

  Data Sheet

  Package: SOP24-300

                        SSOP24-150

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