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LP5522-可编程 LED 驱动器
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TI产品 - LP5522介绍

LP5522 - 可编程 LED 驱动器

LP5522是TI德州仪器公司的一款指示灯/RGBW产品，LP5522是可编程 LED 驱动器，本站介绍了LP5522的封装应用图解、特点和优点、功能等，并给出了与LP5522相关的TI元器件型号供参考。

LP5522 - 可编程 LED 驱动器 - 指示灯/RGBW - LED驱动器 - 德州仪器

产品描述

The LP5522 is a simple single wire programmable LED controller in six bump DSBGA package. It provides constant current flow through high side driver. Output current can be set from 1 mA to 20 mA by using an external resistor on the ISET pin. If no external resistor is used, output current is set to 5 mA default current. The LP5522 is controlled using only one signal. The signal controls either directly the LED driver or it launches previously programmed blinking sequence.

The LP5522 works autonomously without a clock signal from the master device. Very low LED driver headroom voltage makes possible to use supply voltages close to LED forward voltage. Current consumption of the LP5522 is minimized when LED is turned off and once controller is disabled all supporting functions are also shut down. Very small DSBGA package together with minimum number of external components is a best fit for handheld devices.

产品特性

  • Programmable Blinking Sequence
    • 1 to 3 Programmable Pulses
    • 1 ms to 255 ms LED on Time
    • 10 ms to 2500 ms LED Off Time
    • Single or Continuous Run of Programmed Blinking Sequence
  • Constant Current High Side Output Driver
  • Adjustable Current with External Resistor
  • 0.2 µA Typical Shutdown Current
  • Autonomous Operation without External Clock
  • DSBGA-6 Package with 0.4 mm Pitch:
    • 1.215 mm x 0.815 mm x 0.6 mm (LxWxH)

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