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A8513KLPTR-2-T Datasheet(PDF) 1 Page - Allegro MicroSystems |
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A8513KLPTR-2-T Datasheet(HTML) 1 Page - Allegro MicroSystems |
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1 / 24 page  Description The A8513 is a single-output white LED (WLED) driver for LCD backlighting. It integrates a current-mode boost converter with an internal power switch and one current sink. TheA8513 can operate from a single power supply from 4.5 to 40 V, to accommodate start/stop, cold crank, and load dump requirements. A 2 MHz boost converter switching frequency allows the A8513 to operate above the AM radio band. If required, the fault flag can be used as part of a circuit to drive anexternalP-FETtodisconnecttheinputsupplyfromthesystem in the event of a fault. The A8513 provides protection against output short and overvoltage, open or shorted diode, open or shorted LED pin, shorted boost switch or inductor, shorted 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 A8513 is provided in a 10-pin MSOP package (suffix LY) and a 16-pin TSSOP package (suffix LP). Both packages have an exposed thermal pad for enhanced thermal dissipation, and are lead (Pb) free, with 100% matte tin leadframe plating. A8513-DS Rev. 2 Features and Benefits • AEC-Q100 Qualified • Wide input voltage range of 4.5 to 40 V for start/stop, cold crank and load dump requirements • Boost converter switching frequency up to 2 MHz, allowing operation above the AM band • Excellent input voltage transient response • Internal secondary OVP for redundant protection • Fully integrated LED current sink and boost converter with 60 V DMOS FET • Maximum LED current of 150 mA • Drives up to 14 series LEDs • Single EN/PWM pin interface for PWM Dimming and Enable function • 5000:1 PWM dimming at 200 Hz Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver Packages: Typical Application Circuit Not to scale A8513 Continued on the next page… 10-pin MSOP with exposed thermal pad (LY package) 16-pin TSSOP with exposed thermal pad (LP package) Applications: • LCD backlighting for: ▫ Automotive infotainment ▫ Automotive cluster ▫ Automotive center stack ▫ Industrial LCD displays ▫ Portable DVD players ▫ Flatbed Scanners ▫ LED Lighting SW OVP VOUT ROVP1 ROVP2 VIN VDD CVDD COUT EN/PWM ISET GND COMP LED FAULT PAD A8513 VC RISET CIN L1 D1 CP VIN RZ (Optional) CZ (Optional) Boost fSW (MHz) VIN (min) (V) LEDs per String (max) 0.25/0.5/1 5 14 210 14 28 12 26 9 25 7 |
Similar Part No. - A8513KLPTR-2-T |
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Similar Description - A8513KLPTR-2-T |
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