MAX16839

PRODUCTION

High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect

Industry's Most Cost-Effective Solution for Linear HB LED Driving with Open-LED Detect; Ideal for Automotive Lights

Data Sheet (Rev. 4) Product Selection Table

Part Models: 6
1ku List Price: Starting From $1.23

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Overview

5V to 40V Operating Range
Integrated 2Ω Open-Drain Pass Transistor
15mA to 100mA Programmable LED Current
PWM Dimming
Open-LED Fault Detection
Open-LED Fault Event Status Memory
LED Open-Fault Detect Latches Off Multiple LED Strings
Multichip Synchronized LED Current Sink
±5% LED Current Accuracy
-40°C to +125°C Operating Temperature Range
Thermal Protection
Undervoltage Lockout
6-Pin TDFN-EP and 8-Pin SO-EP Packages

The MAX16839 programmable current regulator operates from a 5V to 40V input voltage range and features an open-drain, constant-current-sink output capable of sinking up to 100mA. The MAX16839 is well suited for automotive applications and other applications that require a general-purpose linear LED driver. The device directly withstands automotive load-dump events of up to 45V.

An on-board pass element minimizes external component count while providing ±5% output current accuracy. The MAX16839 includes a dimming input that controls the duty cycle of the output current, allowing a wide LED dimming range. In addition, the dimming input functions as an on/off control of the output current. In multiple LED-string applications, the dimming input synchronizes the LED current-sink turn-on, ensuring simultaneous brightness in LED strings.

Additional features include thermal and open-LED protection and an open-LED fault-detection output. In multiple LED string applications where all FLTS pins are connected together, an open-LED detection in one LED string turns off all the strings simultaneously. Open-LED protection also features fault memory, to avoid LED flashing during subsequent power-up cycles.

The MAX16839 is available in thermally enhanced, 6–pin TDFN-EP and 8-pin SO-EP packages and is specified over the -40°C to +125°C automotive temperature range.

Applications

Automotive Exterior: Turn Signal Light, Brake Light, Tail and Marker Lights
Automotive Interior: Cluster and Warning Lights, Dome and Map Lights
General Lighting: Signage, LED Lamps
Truck, Train, Airplane, and Emergency Car LED Lighting

Part Models: 6
1ku List Price: Starting From $1.23

Documentation

Data Sheet 1

MAX16839: High-Voltage, Linear High-Brightness LED Driver with Open-LED Fault Detect Data Sheet (Rev.4) 05/03/2011

Reliability Data 1

MAX16839 Reliability Data 01/12/2023

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
MAX16839ASA+	8-SOIC_N-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16839ASA+T	8-SOIC_N-150_MIL	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16839ATT+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16839ATT+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16839ATT/V+	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
MAX16839ATT/V+T	Thin Dual Flatpack No Leads, Exposed Pad	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 2, 2025 - 2505 PIN/ERRATA
		pcn_2505
MAX16839ATT+	PRODUCTION
MAX16839ATT/V+	PRODUCTION
Jun 20, 2016 - 1612 ASSEMBLY
		pcn_1612
MAX16839ATT+	PRODUCTION
MAX16839ATT+T	PRODUCTION
Jun 18, 2021 - 2161 ASSEMBLY
		pcn_2161
MAX16839ATT/V+	PRODUCTION
MAX16839ATT/V+T	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

SPICE Model 1

MAX16839 SPICE Macro Model

Evaluation Kits

Evaluation Kit for the MAX16839

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Features and Benefits

Three Independent Channels for Driving High-Brightness LEDs
100mA LED Current per Channel
Three Independent PWM Inputs
PWM Dimming Control Up to 10kHz
Operates from a 5V to 40V Supply
Supply Input Chopper Circuit
Capability for Cascading Multiple Kits
Proven PCB and Thermal Design
Fully Assembled and Tested

Product Details

The MAX16839 evaluation kit (EV kit) demonstrates three separate high-voltage, single-channel, linear high-brightness LED (HB LED) drivers using the MAX16839 IC. This EV kit is configured to supply an HB LED current of 100mA per channel and operates from a 5V to 40V rated power supply providing up to 300mA. The EV kit can withstand a 45V automotive load-dump condition. An input switch is included to evaluate pulse-width-modulation (PWM) driving with supply chopping.

The EV kit eases evaluation of the MAX16839 PWM dimming-control feature by providing three independent PWM inputs to all three channels. Each PWM input accepts a digital signal up to 10kHz. Additionally, multiple EV kits can be cascaded by using the MAX16839 FLTS signals. An input common-mode choke is also provided to facilitate EMI immunity testing.