MAX6969

16-Port, 5.5V Constant-Current LED Driver

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Status Explanations for product status codes

Part Number Status
MAX6969 Active: In Production. See Ordering Information for details.

Description

The MAX6969 serial-interfaced LED driver provides 16 open-drain, constant-current-sinking LED driver outputs rated at 5.5V. The MAX6969 operates from a 3V to 5.5V supply. The MAX6969 supply and the LEDs' supply or supplies can power up in any order. The constant-current outputs are programmed together to up to 55mA using a single external resistor. The MAX6969 operates with a 25Mb, industry-standard, 4-wire serial interface.

The MAX6969 uses the industry-standard, shift-register-plus-latch-type serial interface. The driver accepts data shifted into a 16-bit shift register using data input DIN and clock input CLK. Input data appears at the DOUT output 16 clock cycles later to allow cascading of multiple MAX6969s. The latch-enable input, LE, loads the 16 bits of shift register data into a 16-bit output latch to set which LEDs are on and which are off. The output-enable, active-low OE, gates all 16 outputs on and off, and is fast enough to be used as a PWM input for LED intensity control.

For applications requiring LED fault detection, refer to the MAX6984*, which automatically detects open-circuit LEDs.

For safety-related applications requiring a watchdog timer, refer to the MAX6979, which includes a fail-safe feature that blanks the display if the serial interface becomes inactive for more than 1s.

The MAX6969 is one of a family of 12 shift-register-plus-latch-type LED drivers. The family includes 8-port and 16-port types, with 5.5V- or 36V-rated LED outputs, with and without open-circuit LED detection and watchdog. All versions operate from a 3V to 5.5V supply, and are specified over the -40°C to +125°C temperature range.

Data Sheet

Download this datasheet in PDF formatDownload Rev 3 (PDF, 208kB)
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An evaluation board is available: MAX6969EVKIT

NOTE: This product uses the following:
MAX6969 EVKIT Software

Key Features

  • 25Mb, Industry-Standard, 4-Wire Serial Interface at 5V
  • 3V to 5.5V Logic Supply
  • 16 Constant-Current LED Outputs Rated at 5.5V
  • Up to 55mA Continuous Current per Output
  • Output Current Programmed by Single Resistor
  • 3% Current Matching Between Outputs
  • 6% Current Matching Between ICs
  • High-Dissipation, 24-Pin Packages
  • -40°C to +125°C Temperature Range
  • Underwriters Laboratories (UL) Recognized
 

Applications/Uses

  • Architectural Lighting
  • Gaming Features
  • Marquee Displays
  • Point-of-Order Signs
  • Traffic Signs
  • Variable Message Signs
   

Key Specifications:

Display Drivers
Part Number LCD or LED Digits or Char. Output Format Display Type Interface Segment Blinking VSUPPLY
(V)
VSUPPLY
(V)
Budgetary
Price
min max See Notes
MAX6969  LED 16-Segment Any digit type Common Anode Serial 4-Wire 25Mbit No 3 5.5 $1.82 @1k
See All Display Drivers (48)

Pricing Notes:

This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.



This product is from a family of 12 shift-register latch-type LED drivers with 8-port and 16-port, 5.5V and 36V rated outputs, with and without LED fault detection and watch dog timer.

*Future product—contact factory for availability.

Diagram

MAX6969: Typical Operating Circuit
Typical Operating Circuit

Product Guides

Interface (PDF)

Reliability Reports

Reliability Report: MAX6969.pdf
Show FIT data for:
Underwriters Laboratories (UL) Recognized

Software/Models

MAX6969 EVKIT Software

Ordering Information

Filters: Part Number Package: Temperature: Tape and Reel Sample
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6969ANG     N/A No Longer Available PDIP(N);24 pin;158.4 mm²
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX6969ANG+  
Active PDIP(N);24 pin;158.4 mm²
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6969AUG     N/A No Longer Available TSSOP;24 pin;52.4 mm²
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX6969AUG+  
Active TSSOP;24 pin;52.4 mm²
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6969AUG+T    
Active TSSOP;24 pin;52.4 mm²
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6969AUG-T     N/A No Longer Available TSSOP;24 pin
-40°C to +125°C See data sheet
MAX6969AWG     N/A No Longer Available SOIC(W);24 pin;166.1 mm²
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX6969AWG+  
Active SOIC(W);24 pin;166.1 mm²
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6969AWG+T    
Active SOIC(W);24 pin;166.1 mm²
-40°C to +125°C RoHS/Lead-Free: Lead Free
Materials Analysis
MAX6969AWG-G05    
Active W.SO;
-40°C to +125°C See data sheet
Part Number Free
Sample
Buy Status Explanations for product status codes Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR *
Temp RoHS/Lead-Free?
Materials Analysis
MAX6969AWG-T     N/A No Longer Available SOIC(W);24 pin;166.1 mm²
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis
MAX6969AWG-TG05    
Active SOIC(W);24 pin;166.1 mm²
-40°C to +125°C RoHS/Lead-Free: No
Materials Analysis

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maximintegrated.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Similar Products by Function

MAX6968 8-Port, 5.5V Constant-Current LED Driver
MAX6977 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection
MAX6978 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection and Watchdog
See All Display Drivers (48Products)

Evaluation Kits

MAX6969EVKIT Evaluation Kit for the MAX6969

Products with Similar Part Numbers

MAX6969EVKIT Evaluation Kit for the MAX6969

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Information Index

Document Ref.: 19-3677 Rev 3; 2010-09-02
This page last modified: 2011-01-10