LED драйвер питания A8502 панели приборов Land Rover Discovery Sport I 2014-2019

Характеристики

Описание

В нашем интернет магазине Вы можете купить LED драйвер питания  ALLEGRO (Wide Input Range, High Efficiency Fauit Tolerant LED Driver) A8502 панели приборов Land Rover Discovery Sport I 2014-2019, а так же воспользоваться услугой по ремонту приборной панели Land Rover Discovery Sport I 2014-2019

Особенности и преимущества • 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)

Описание 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. If required, the A8502 can drive an external P-FET to disconnect the input supply from the system in the event of a fault. The A8502 provides protection against output short and overvoltage, open or shorted diode, open or shorted LED pin, shorted boost switch or inductor, shorted FSET or ISET resistor, and IC overtemperature. A dual level cycle-by-cycle current limit function provides soft start and protects the internal current switch against high current overloads. The A8502 has a synchronization pin that allows its switching frequencies to be synchronized in the range of 260 kHz to 2.3 MHz. The high switching frequency allows the A8502 to operate above the AM radio band.

Приложения: LCD backlighting or LED lighting for: ▫ Automotive infotainment ▫ Automotive cluster ▫ Automotive center stack

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