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HomeProductsIntegrated Circuits (ICs)PMIC - LED DriversMAX6969AUG+T
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MAX6969AUG+T - Analog Devices Inc./Maxim Integrated

Manufacturer Part Number
MAX6969AUG+T
Manufacturer
Maxim Integrated
Allelco Part Number
32D-MAX6969AUG+T
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
10,169 pcs available, New & Original
Parts Description
IC LED DRVR LINEAR 55MA 24TSSOP
Package
24-TSSOP
Data sheet
MAX6969AUG+T.pdf

Part Numbering Guide

Part Numbering System.pdf
RoHs Status
ROHS3 Compliant
Compare
Our certification
In stock: 10169
  • Unit Price: $2.778
  • Subtotal: $0.00

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Quantity Unit Price Ext. Price
1+ $2.778 $2.78
200+ $1.076 $215.20
500+ $1.038 $519.00
1000+ $1.019 $1,019.00
The above prices does not include taxes and freight rates, which will be calculated on the order pages.

Specifications

MAX6969AUG+T Tech Specifications
Analog Devices Inc./Maxim Integrated - MAX6969AUG+T technical specifications, attributes, parameters and parts with similar specifications to Analog Devices Inc./Maxim Integrated - MAX6969AUG+T

Product Attribute Attribute Value
Manufacturer Maxim Integrated
Voltage - Supply (Min) 3V
Voltage - Supply (Max) 5.5V
Voltage - Output 5.5V
Type Linear
Topology Shift Register
Supplier Device Package 24-TSSOP
Series -
Package / Case 24-TSSOP (0.173', 4.40mm Width)
Package Tape & Reel (TR)
Product Attribute Attribute Value
Operating Temperature -40°C ~ 125°C (TA)
Number of Outputs 16
Mounting Type Surface Mount
Internal Switch(s) Yes
Frequency -
Dimming -
Current - Output / Channel 55mA
Base Product Number MAX6969
Applications Signage

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

MAX6969AUG+T Image
MAX6969AUG+T (1)

Manufacturer Part Number

MAX6969AUG+T

Manufacturer

Analog Devices

Introduction

Highly integrated linear LED driver designed for signage applications.

Product Features and Performance

Linear LED driver with shift register integration

16 independently controllable outputs

Supports 3V to 5.5V supply voltage

55mA current per output channel

Surface mount 24-TSSOP package

Product Advantages

Capability to drive multiple LEDs with high uniformity

Integrated shift register minimizes external component count

Broad supply voltage range for flexible usage in various circuit designs

Support for high-temperature operation up to 125°C

Key Technical Parameters

Type: Linear with Shift Register topology

Internal Switch(s): Yes

Number of Outputs: 16

Voltage - Supply (Min): 3V

Voltage - Supply (Max): 5.5V

Voltage - Output: Up to 5.5V

Current - Output / Channel: 55mA

Operating Temperature range: -40°C to 125°C

Quality and Safety Features

Designed to meet stringent quality standards

Robust operation in a wide temperature range

Ensures consistent and reliable LED driving performance

Compatibility

Works with common anode LEDs

Compatible with a variety of microcontrollers for LED control

Surface mount TSSOP package for standard PCB assembly processes

Application Areas

Primarily used for powering LEDs in signage

Suitable for decorative lighting and display backlights

Product Lifecycle

Product Status: Active

No reported discontinuation; replacements or upgrades should be sought as needed

Several Key Reasons to Choose This Product

Integrated linear control minimizes need for external components

Flexible power supply voltage to accommodate different power sources

Capable of driving up to 16 LEDs, ideal for large displays

High-temperature operational range ensures reliability in various environments

Tape & Reel packaging beneficial for high-volume automated manufacturing processes

Frequently Asked Questions(FAQ)

How does the MAX6969AUG+T compare to other 16-channel LED drivers in terms of output current per channel and supply voltage range when driving high-brightness LEDs in outdoor signage?
The MAX6969AUG+T delivers a consistent 55mA per channel across all 16 outputs, which is sufficient for driving high-brightness white or RGB LEDs commonly used in outdoor digital signage. Its supply voltage range spans from 3V to 5.5V, allowing compatibility with both 5V logic systems and battery-powered designs where voltage regulation may vary. This contrasts with some alternative drivers that offer higher peak currents but narrower voltage tolerances or require external current-setting components, increasing bill-of-materials complexity.
What are the thermal implications of operating the MAX6969AUG+T at full load in a compact signage enclosure without airflow?
At maximum continuous output current of 55mA per channel (totaling ~880mA), the MAX6969AUG+T generates approximately 1.2W of power dissipation under typical conditions due to internal pass element resistance. In a sealed, poorly ventilated enclosure, this can raise junction temperatures significantly above ambient—potentially exceeding 100°C even at moderate ambient temperatures. Without heatsinking or airflow, thermal derating becomes necessary; designers should limit total output current to stay within the 125°C maximum junction temperature while accounting for PCB copper area and layout parasitics.
Can the MAX6969AUG+T be daisy-chained with multiple units to drive more than 16 LEDs, and what performance limitations arise from clock signal propagation delay?
Yes, multiple MAX6969AUG+T devices can be daisy-chained via the serial interface to expand beyond 16 channels. However, each unit introduces propagation delay on the shift register clock (SRCLK). For long chains—say, eight cascaded ICs—the cumulative delay may exceed 200ns, potentially violating setup and hold times during high-speed data transmission. This can lead to misaligned data latching or corrupted patterns unless the system clock frequency is reduced accordingly, trading speed for reliability in extended configurations.
How does the built-in current sink configuration of the MAX6969AUG+T affect LED brightness uniformity compared to open-drain alternatives?
Unlike open-drain configurations that rely on external resistors and MOSFETs, the MAX6969AUG+T uses integrated linear current sinks with matched transistor pairs across all channels. This results in better-than-±3% matching between channels at room temperature, improving brightness consistency in multi-string displays. However, unlike constant-current switching regulators, its linear operation means output voltage tracks input minus LED forward drop, making it less efficient for high-Vf LEDs unless input headroom exceeds 5.5V, which is outside the specified range.
What considerations apply when selecting bypass capacitors for stable operation of the MAX6969AUG+T in noisy industrial environments?
The MAX6969AUG+T requires a 0.1µF ceramic capacitor placed as close as possible to the VDD pin to suppress high-frequency switching noise from adjacent digital circuitry. In electrically harsh environments—such as those near motor drives or RF sources—additional bulk capacitance (e.g., 10µF tantalum) may be needed at the supply entry point to maintain voltage stability during transient events. Failure to include adequate decoupling can cause erratic behavior, particularly during rapid data shifts that induce ground bounce through shared supply impedance.
Is it feasible to use the MAX6969AUG+T for PWM dimming applications, and how does its architecture influence minimum achievable pulse width?
While the MAX6969AUG+T lacks dedicated PWM inputs, external PWM signals can modulate overall brightness by controlling the serial data update rate. Due to internal latch timing constraints, the effective minimum pulse width is limited to about 100ns, corresponding roughly to a maximum refresh rate of 7MHz for 16-bit color depth. However, true analog dimming via ISET pin provides finer control with no flicker down to very low duty cycles, though at the cost of reduced efficiency when operating below full scale.
How does the MAX6969AUG+T’s output stage respond to short-circuit conditions, and what protection mechanisms exist to prevent damage?
Each channel in the MAX6969AUG+T features active current limiting rather than traditional foldback protection. If an LED shorts, the channel automatically reduces current to approximately 25% of nominal (≈14mA), preventing overheating of internal transistors. While this mitigates catastrophic failure, prolonged short-circuit operation may still elevate package temperature. Designers must ensure that fault conditions are cleared promptly, as sustained overload could compromise long-term reliability despite built-in safeguards.
What layout precautions are essential when routing signals near the MAX6969AUG+T to avoid crosstalk and ensure reliable data transmission?
To minimize coupling interference, keep the serial data (SDI), shift clock (SRCLK), and storage clock (RCLK) traces short and routed away from high-impedance nodes or power planes. Maintain controlled impedance (typically 50Ω single-ended) and avoid parallel runs longer than λ/10 at expected clock frequencies. Ground return paths should be uninterrupted beneath signal layers, especially under the TSSOP footprint, to reduce loop inductance and suppress electromagnetic emissions that might corrupt sensitive digital lines in dense PCB stacks.
Can the MAX6969AUG+T operate reliably over the full industrial temperature range (-40°C to +125°C), and how does temperature affect output accuracy?
Yes, the MAX6969AUG+T is qualified for operation across -40°C to +125°C, making it suitable for automotive and outdoor applications. However, output current drift with temperature is approximately ±5% over this range due to semiconductor threshold variations. At cold startup (-40°C), initial turn-on may exhibit slightly lower brightness; conversely, at elevated temperatures, slight droop occurs if thermal gradients develop across the array. Calibration or feedback compensation may be required in precision display systems.
What is the impact of using the MAX6969AUG+T in systems requiring ESD protection beyond standard human-body model levels?
Although the MAX6969AUG+T includes basic ESD protection diodes on I/O pins rated to ±2kV HBM, industrial environments often demand higher robustness—up to ±8kV. External TVS diodes or transient suppressors should be added at connector interfaces and exposed signal lines to protect against electrostatic discharge from operators or induced surges. Without such augmentation, repeated ESD events near pin limits can degrade internal junctions over time, eventually leading to functional failures not covered by datasheet guarantees.
How does the MAX6969AUG+T compare to switching LED drivers like the LT3966 in terms of EMI characteristics for sensitive display installations?
The MAX6969AUG+T operates in the DC-to-low-kHz domain with purely resistive switching, producing minimal electromagnetic interference compared to switching regulators that generate MHz-range harmonics. This makes it ideal for installations near medical equipment or avionics where radiated emissions are regulated. Conversely, switching drivers achieve higher efficiency (>90%) under high-load conditions, whereas the linear nature of the MAX6969AUG+T results in lower efficiency (~60–70%) when driving LEDs with low forward voltage relative to supply, necessitating careful thermal management in high-power arrays.
Are there any known issues with using the MAX6969AUG+T alongside microcontrollers running at 3.3V logic levels?
The MAX6969AUG+T accepts CMOS-compatible inputs with VIH(min) = 0.7 × VDD and VIL(max) = 0.3 × VDD. When powered at 5V, this corresponds to valid high logic levels above 3.5V, which exceeds 3.3V logic thresholds. Direct interfacing with 3.3V MCUs without level shifting risks marginal noise margins and potential false triggering. A simple resistor divider or open-drain buffer ensures clean signal integrity, especially in noisy environments where ground offsets or rail glitches could compromise reliable communication.

Parts with Similar Specifications

The three parts on the right have similar specifications to Analog Devices Inc./Maxim Integrated MAX6969AUG+T

Product Attribute MAX6969AUG+ MAX6969AWG+T MAX6968AUE+T MAX6969ANG+
Part Number MAX6969AUG+ MAX6969AWG+T MAX6968AUE+T MAX6969ANG+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Series - - - -
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Topology - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Type - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Voltage - Supply (Min) - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C
Internal Switch(s) - - - -
Frequency - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Mounting Type - Surface Mount Through Hole Surface Mount
Current - Output / Channel - - - -
Applications - - - -
Voltage - Output - - - -
Dimming - - - -
Number of Outputs - - - -
Voltage - Supply (Max) - - - -

MAX6969AUG+T Datasheet PDF

Download MAX6969AUG+T pdf datasheets and Analog Devices Inc./Maxim Integrated documentation for MAX6969AUG+T - Analog Devices Inc./Maxim Integrated.

Datasheets
Cylindrical Battery Holders.pdf
Environmental Information
Maxim Integrated REACH.pdf Maxim Integrated RoHS Cert.pdf Red Phosphorous Certificate.pdf
Part Numbering Guide
Part Numbering System.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
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MAX6969AUG+T Image

MAX6969AUG+T

Analog Devices Inc./Maxim Integrated
32D-MAX6969AUG+T

Want a better price? Add to Cart and Submit RFQ now, we'll contact you immediately.

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