MAX16821AATI+

Description：IC LED DRIVER CTRLR PWM 28TQFN
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube

SKU:1af5acd7d7ad Category: LED Drivers IC Brand: Analog Devices Inc./Maxim Integrated

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

MAX16821AATI+ is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Analog Devices Inc./Maxim Integrated. Its product description is IC LED DRIVER CTRLR PWM 28TQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for MAX16821AATI+

Description：IC LED DRIVER CTRLR PWM 28TQFN
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tube
Type：DC DC Controller
Topology：SEPIC, Step-Down (Buck), Step-Up (Boost)
Internal Switch(s)：No
Number of Outputs：1
Voltage - Supply (Min)：4.75V
Voltage - Supply (Max)：28V
Voltage - Output：-
Current - Output / Channel：-
Frequency：125kHz ~ 1.5MHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：28-WFQFN Exposed Pad
Supplier Device Package：28-TQFN (5x5)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for MAX16821AATI+

MAX16821AATI+

LED Driver IC Overview

The MAX16821AATI+ is a high-power synchronous HB LED driver IC from the MAX16821B series, manufactured by Analog Devices Inc./Maxim Integrated. It operates within an input voltage range of 4.75 V to 28 V and supports Boost, Buck, and SEPIC topologies. The device features a switching frequency adjustable from 125 kHz to 1.5 MHz and provides one output channel with up to 4 A current capability. Packaged in a 28-TQFN (5x5 mm) format, it functions as a DC-DC controller with PWM dimming support. The component is rated for operation between -40°C and +125°C.

LED Driver IC Feature Summary

Supports multiple converter topologies including Boost, Buck, and SEPIC configurations.
Enables rapid current pulsing functionality for specific lighting applications.
Integrates PWM dimming control for precise brightness management.

LED Driver IC Applications

Backlight systems
Portable projector RGB LED driving
Multicolor lighting implementations

LED Driver IC Procurement Notes

Verify availability status carefully, as this component may be subject to limited supply or discontinuation. Confirm the exact suffix matches the required package and temperature grade. Cross-reference the manufacturer's official documentation for any recent lifecycle changes or alternative part recommendations before finalizing procurement plans.

LED Driver IC Selection Notes

Select this driver when designing circuits requiring flexible topology options such as SEPIC or Buck-Boost for varying input voltages. Ensure the external MOSFETs can handle the 4 A synchronous rectification requirements. Verify that the application demands PWM dimming capabilities and fits within the specified thermal and voltage constraints for reliable long-term operation.

LED Driver IC Part Context

This component belongs to the MAX16821 family of high-power synchronous HB LED drivers. It is designed for applications requiring efficient power conversion and precise current regulation. The device integrates synchronous rectification to improve efficiency compared to traditional diode-based solutions, making it suitable for space-constrained and thermally sensitive designs.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official datasheet or distributor databases for direct replacements or pin-compatible alternatives if this specific part number is unavailable.