STMicroelectronics STLED524
The STLED524 is a 5x24 dot matrix LED display driver. It can drive each dot with a current up to 20 mA. Each LED in a row is driven by a separate low-side current mirror.| Part No. | STLED524 |
|---|---|
| Datasheet | STLED524 Download |
| Manufacturer |  STMicroelectronics |
| Description | Intelligent matrix LED display driver |
| Buy | Stock & Price |
FEATURES
● Operating input voltage range from 2.7 V to 5.5 V● 5x24 LED matrix driver
● Adjustable luminance separately for each LED thanks to internal registers in 255 steps
● Internal registers store 2 patterns
● 4-way scroll function with the possibility to lock column data
● PWM dimming in 255 steps
● Adjustable blanking time
● Automatic slope function
● Cycle time and slope time adjustable for each dot separately
● SPI interface
● Integrated step-up converter with adjustable output voltage
● Integrated LDO with 3.1 V output @ 80 mA
● Boost efficiency 92% at 350 mA
● 2.4 MHz switching frequency
● CSP 56 bumps 0.4 mm pitch 3.4x3.0 mm
APPLICATIONS
● Appliance user interfaces● Display driver for handheld units Datasheet - preliminary data
DESCRIPTION
It can drive each dot with a current up to 20 mA. Rows of the matrix are multiplexed. Current regulators are supplied by an integrated boost DC-DC converter. Its output voltage can be adjusted by the internal register to optimize efficiency according to the type of LEDs (their forward voltage).
