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LP5524

AKTIV

4-Kanal-LED-Treiber mit zweifacher PWM-Helligkeitsregelung

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Datenblatt

LP5524

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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 (— mm × — mm)
  • 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt LP5524 Four-Channel LED Driver With Dual-PWM Brightness Control datasheet (Rev. C) PDF | HTML 04.11.2016
Whitepaper Common LED Functions and LED Driver Design Considerations 21.09.2020
Anwendungshinweis How to Select a RGB LED Driver 08.08.2019
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018

Design und Entwicklung

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Evaluierungsplatine

LP5524TM-5EV — Evaluierungsplatine für den 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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