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A8515 - Fault Tolerant LED Driver

General Description

TheA8515 is a multi-output white LED (WLED) driver for LCD backlighting in consumer and industrial displays.

It integrates a current-mode boost converter with an internal power DMOS switch and two current sinks.

The boost converter can drive up to 24 LEDs: 12 LEDs per string at 120 mA.

Key Features

  • Wide input voltage range: 5 to 40 V.
  • Maximum LED current of 120 mA.
  • TSSOP-16 (LP) package; exposed pad offers best-in-class thermal performance.
  • Typical LED accuracy of 0.5%, and 0.5% for LED-to-LED matching.
  • Internal bias supply for single-supply operation (typically between VIN = 8 to 24 V).
  • Integrated boost converter with 60 V DMOS switch with overvoltage protection (OVP).
  • Drives up to 12 series LEDs in 2 parallel strings.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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A8515 Wide Input Voltage Range, High Efficiency Fault Tolerant LED Driver FEATURES AND BENEFITS • Wide input voltage range: 5 to 40 V • Maximum LED current of 120 mA • TSSOP-16 (LP) package; exposed pad offers best-in-class thermal performance • Typical LED accuracy of 0.5%, and 0.5% for LED-to-LED matching • Internal bias supply for single-supply operation (typically between VIN = 8 to 24 V) • Integrated boost converter with 60 V DMOS switch with overvoltage protection (OVP) • Drives up to 12 series LEDs in 2 parallel strings • Single EN/PWM pin interface for both PWM dimming and enable function • Sync function to synchronize boost converter switching frequencies up to 2.