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A8502KLPTR-T Datasheet (PDF) - Allegro MicroSystems

A8502KLPTR-T Datasheet PDF - Allegro MicroSystems
No. de pieza A8502KLPTR-T
Descarga  A8502KLPTR-T Descarga

Tamaño del archivo   1244.35 Kbytes
Page   35 Pages
Fabricante Electrónico  ALLEGRO [Allegro MicroSystems]
Página de inicio  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Descripción Electrónicos Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver

A8502KLPTR-T Datasheet (PDF)

Go To PDF Page Descarga Datasheet
A8502KLPTR-T Datasheet PDF - Allegro MicroSystems

No. de pieza A8502KLPTR-T
Descarga  A8502KLPTR-T Click to download

Tamaño del archivo   1244.35 Kbytes
Page   35 Pages
Fabricante Electrónico  ALLEGRO [Allegro MicroSystems]
Página de inicio  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Descripción Electrónicos Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver

A8502KLPTR-T Datasheet (HTML) - Allegro MicroSystems

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A8502KLPTR-T Detalles de producto

Description

The A8502 is a multi-output white LED driver for small-size LCD backlighting. It integrates a current-mode boost converter with internal power switch and two current sinks. The boost converter can drive up to 24 LEDs, 12 LEDs per string, at 120 mA. The LED sinks can be paralleled together to achieve even higher LED currents, up to 240 mA. The A8502 can operate with a single power supply, from 5 to 40 V, which allows the part to withstand load dump conditions encountered in automotive systems.



Features and Benefits

• AEC-Q100 qualified

• Wide input voltage range of 5 to 40 V for start/stop, cold crank and load dump requirements

• Fully integrated LED current sinks and boost converter with 60 V DMOS

• Sync function to synchronize boost converter switching frequency up to 2.3 MHz, allowing operation above the AM band

• Excellent input voltage transient response

• Single resistor primary OVP minimizes VOUT leakage

• Internal secondary OVP for redundant protection

• LED current of 120 mA per channel

• Drives up to 12 series LEDs in 2 parallel strings

• 0.7% to 0.8% LED to LED matching accuracy

• PWM and analog dimming inputs

• 5000:1 PWM dimming at 200 Hz

• Provides driver for optional external PMOS input disconnect switch

• Extensive protection against:

  ▫Shorted boost switch or inductor

  ▫Shorted FSET or ISET resistor

  ▫Shorted output

  ▫Open or shorted LED pin

  ▫Open boost Schottky

  ▫Overtemperature (OTP)



Applications:

LCD backlighting or LED lighting for:

  ▫Automotive infotainment

  ▫Automotive cluster

  ▫Automotive center stack




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Acerca de Allegro MicroSystems


Allegro MicroSystems is a semiconductor company that designs, manufactures, and markets high-performance power and sensing solutions. The company was founded in 1990 and is headquartered in Manchester, New Hampshire, USA.

Allegro MicroSystems' product portfolio includes Hall-effect sensors, power ICs, motor drivers, and magnetic digital position sensors. These products are used in a wide range of applications, including automotive, industrial, and consumer electronics.

Allegro MicroSystems is known for its expertise in magnetic sensing technology, which is used in many of its products. The company's products are designed to meet the highest standards of performance and reliability, and are manufactured using the latest technology and materials. Allegro MicroSystems also offers custom design and engineering services to meet the specific needs of its customers.

Allegro MicroSystems has a global presence, with sales offices and representatives located around the world. The company is dedicated to delivering innovative and reliable power and sensing solutions that meet the evolving needs of the electronics industry. In 2021, Allegro MicroSystems went public through an initial public offering (IPO) on the NASDAQ stock exchange.

*Esta información es solo para fines informativos generales, no seremos responsables de ninguna pérdida o daño causado por la información anterior.




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