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LP5524

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Controlador LED de 4 canales con control de brillo PWM doble

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LP5524

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Detalles del producto

Number of channels 4 LED current per channel (mA) 25 LED configuration Parallel Program memory No Topology Linear Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.1 Features GPIO interface Iq (typ) (mA) 0.17 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 4 LED current per channel (mA) 25 LED configuration Parallel Program memory No Topology Linear Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.1 Features GPIO interface Iq (typ) (mA) 0.17 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YFQ) 9 1.96000000000000028000000000000001 mm² 1.4000000000000001 x 1.4000000000000001
  • Wide Input Voltage Range: 2.7 V to 5.5 V
  • High-Side LED Driver
  • Drives Four LEDs With up to 25 mA per LED
  • 0.4% Typical Current Matching
  • PWM Brightness Control
  • Overcurrent Protection
  • Fast Transient Response
  • Optional External ISET Resistor
  • Ultra-Small Solution Size:
    • No External Components
    • 9-Pin DSBGA Package with 0.4-mm pitch:
      • 1.24 mm × 1.24 mm × 0.6 mm (L × W × H, maximum)
  • Wide Input Voltage Range: 2.7 V to 5.5 V
  • High-Side LED Driver
  • Drives Four LEDs With up to 25 mA per LED
  • 0.4% Typical Current Matching
  • PWM Brightness Control
  • Overcurrent Protection
  • Fast Transient Response
  • Optional External ISET Resistor
  • Ultra-Small Solution Size:
    • No External Components
    • 9-Pin DSBGA Package with 0.4-mm pitch:
      • 1.24 mm × 1.24 mm × 0.6 mm (L × W × H, maximum)

The LP5524 device is a highly integrated dual-zone LED driver that can drive up to four LEDs in parallel with a total output current of 100 mA. Regulated high-side internal current sources deliver excellent current and brightness matching in all LEDs.

The LP5524 provides overcurrent protection and pulse-width modulation (PWM) control of four indicator LEDs without the need for external components.

LED driver current sources are split into two independently controlled banks for driving secondary displays, keypad and indicator LEDs. Brightness control is achieved by applying PWM signals to each enable pin. Default LED current is factory-programmable and an optional external resistor can be used to set LED current to user programmable values.

The LP5524 is available in a tiny, 9-pin, thin DSBGA package.

For all available packages, see the orderable addendum at the end of the data sheet.

The LP5524 device is a highly integrated dual-zone LED driver that can drive up to four LEDs in parallel with a total output current of 100 mA. Regulated high-side internal current sources deliver excellent current and brightness matching in all LEDs.

The LP5524 provides overcurrent protection and pulse-width modulation (PWM) control of four indicator LEDs without the need for external components.

LED driver current sources are split into two independently controlled banks for driving secondary displays, keypad and indicator LEDs. Brightness control is achieved by applying PWM signals to each enable pin. Default LED current is factory-programmable and an optional external resistor can be used to set LED current to user programmable values.

The LP5524 is available in a tiny, 9-pin, thin DSBGA package.

For all available packages, see the orderable addendum at the end of the data sheet.

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Documentación técnica

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Tipo Título Fecha
* Data sheet LP5524 Four-Channel LED Driver With Dual-PWM Brightness Control datasheet (Rev. C) PDF | HTML 04 nov 2016
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-1702 LP5524 Evaluation Kit (Rev. A) 30 abr 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LP5524TM-5EV — Placa de evaluación para LP5524

LP5524 Evaluation Kit enables designers an easy way to evaluate the performance of the device. The evaluation board has jumpers for each enable pin for easy on/off type control. These inputs can also be fed with external PWM source. Jumpers on LED outputs allow easy LED current measuring. ISET pin (...)

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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