A8519KETTR-R-1

LED Driver IC Overview

The A8519KETTR-R-1 is a fully integrated LED driver IC designed for boost converter applications. It features four independent current sinks, each capable of delivering up to 100 mA, with a combined maximum output current of 400 mA. The device operates from a single power supply ranging from 4.5 V to 40 V and supports transient voltages as low as 6.8 V and as high as 40 V. It integrates a current-mode boost converter with an internal power switch and supports both analog and PWM dimming. The component is housed in a 28-QFN-EP (5x5) package and is rated for automotive use with AEC-Q100 qualification.

LED Driver IC Feature Summary

• Integrates a current-mode boost converter with an internal power switch
• Provides four independent current sink channels for precise LED control
• Supports both analog and pulse-width modulation (PWM) dimming methods
• Includes extensive fault mode protection schemes for system reliability

LED Driver IC Applications

• OEM in-cabin telematics systems
• Aftermarket in-cabin telematics systems
• Consumer LCD display backlighting
• Industrial LCD display backlighting

LED Driver IC Procurement Notes

Verify the specific suffix '-1' against official Allegro MicroSystems documentation to confirm any functional or packaging differences compared to the standard A8519KETTR-R variant. Ensure compatibility with the target application's voltage and current requirements before procurement. Confirm that the 28-QFN-EP package footprint matches the design layout.

LED Driver IC Selection Notes

Select this component for applications requiring multi-channel LED regulation with integrated boost conversion. It is suitable for environments demanding automotive-grade reliability and wide input voltage tolerance. Consider the 28-QFN-EP package size and thermal performance when designing the PCB layout. Verify that the required dimming method aligns with the device's support for analog and PWM inputs.

LED Driver IC Part Context

The A8519 belongs to Allegro MicroSystems' portfolio of automotive LED drivers. It is part of a family of devices designed for medium-size LCD backlighting in telematics and display applications. The device shares architectural similarities with other multi-output drivers like the A8501 but offers specific integration levels tailored for boost converter topologies.

LED Driver IC Replacement Considerations

The A8519KETTR-R is listed as a parameter-equivalent alternative. Verify pinout and electrical specifications before substitution.