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LP5522

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Controlador LED programable de un canal

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LP5522

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Detalles del producto

Number of channels 1 LED current per channel (mA) 20 LED configuration Single Program memory Yes Topology Linear Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.02 Features Constant current, GPIO interface Iq (typ) (mA) 0.04 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -30 to 85 Rating Catalog
Number of channels 1 LED current per channel (mA) 20 LED configuration Single Program memory Yes Topology Linear Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.02 Features Constant current, GPIO interface Iq (typ) (mA) 0.04 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -30 to 85 Rating Catalog
DSBGA (YFQ) 6 1.4000000000000001 mm² 1.4000000000000001 x 1
  • 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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  • 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)

All trademarks are the property of their respective owners.

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.

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.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LP5522 Programmable LED Driver datasheet (Rev. A) 11 mar 2013
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020
Application note How to Select a RGB LED Driver 08 ago 2019
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
User guide AN-1636 LP5522 Evaluation Kit (Rev. A) 30 abr 2013
Application note Color-Management LED Drivers Have a Bright Future 20 jun 2007

Diseño y desarrollo

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Placa de evaluación

LP5522TMEV — Módulo de evaluación del controlador LED programable de la familia PowerWise®.

The LP5522 is a simple single wire programmable LED controller in six bump micro SMD package. It provides constant current flow through high side driver. Output current can be set from 1mA to 20mA by using an external resistor on the ISET pin. If no external resistor is used, output current is set (...)

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