MAX6969
PRODUCTION16-Port, 5.5V Constant-Current LED Driver
- Part Models
- 5
- 1ku List Price
- Starting From $2.70
Part Details
- 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
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.
Applications
- Architectural Lighting
- Gaming Features
- Marquee Displays
- Point-of-Order Signs
- Traffic Signs
- Variable Message Signs
Documentation
Data Sheet 1
Reliability Data 1
3rd Party Solutions 4
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 |
|---|---|---|---|
| MAX6969ANG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX6969AUG+ | Thin Shrink Small-Outline Package | ||
| MAX6969AUG+T | Thin Shrink Small-Outline Package | ||
| MAX6969AWG+ | Small-Outline IC, Wide (0.3in) | ||
| MAX6969AWG+T | Small-Outline IC, Wide (0.3in) |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Display Driver Electronics 3 | ||
| MAX6968 | PRODUCTION | 8-Port, 5.5V Constant-Current LED Driver |
| MAX6977 | Obsolete | 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection |
| MAX6978 | PRODUCTION | 8-Port, 5.5V Constant-Current LED Driver with LED Fault Detection and Watchdog |
Evaluation Kits
Evaluation Kit for the MAX6969
Latest Discussions
No discussions on max6969 yet. Have something to say?
Start a Discussion on EngineerZone®