MAX16834ATP/V+

LED Driver IC Overview

The MAX16834ATP/V+ is a high-power LED driver IC featuring an integrated high-side current sense amplifier and a 3A sink/source gate driver for external power MOSFET control. It operates within a supply voltage range of 4.75V to 28V, supporting output voltages up to 27V. The device regulates LED current from 20mA to 150mA via external resistors without requiring a microcontroller. It supports PWM dimming frequencies between 100kHz and 1MHz and includes gamma correction capabilities. Packaged in a TQFN-20, it is AEC-Q100 qualified for automotive reliability.

LED Driver IC Feature Summary

• Integrates a high-side current sense amplifier with a 3A sink/source gate driver for efficient external MOSFET switching.
• Supports analog and PWM dimming with internal gamma correction algorithms for precise brightness control.
• Operates over a wide input voltage range of 4.75V to 28V, suitable for various power supply configurations.
• Automotive-grade qualification ensures robust performance under demanding environmental conditions.

LED Driver IC Applications

• High-power automotive lighting systems
• General solid-state lighting applications
• LCD backlight drivers requiring high efficiency

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., +T for reel packaging) against the required quantity and handling specifications. Confirm that the TQFN-20 package dimensions align with the PCB footprint design. Ensure the selected variant meets the necessary AEC-Q100 automotive reliability standards if deployed in vehicle environments. Cross-reference the manufacturer's latest datasheet for any updates on recommended operating conditions or thermal management requirements.

LED Driver IC Selection Notes

Select this component when a single-channel solution with integrated sensing and gate driving is required to minimize external BOM count. It is suitable for designs needing adjustable current limits between 20mA and 150mA without complex digital interfaces. Consider the 4.75V to 28V input range compatibility with existing system power rails. Evaluate the thermal performance in the TQFN-20 package against the expected power dissipation of 2.051W in the final enclosure.

LED Driver IC Part Context

The MAX16834 belongs to the Maxim Integrated high-power LED driver family, designed to simplify the implementation of efficient lighting systems. It combines control logic, current sensing, and gate driving into a single compact package. This integration reduces board space and simplifies layout compared to discrete solutions using separate controllers and drivers.

LED Driver IC Replacement Considerations

Check for direct pin-compatible alternatives within the MAX1683x series. Verify that substitute parts maintain the same 3A gate drive capability and 28V maximum supply rating. Ensure replacement components offer equivalent AEC-Q100 certification if automotive use is intended.