IC drives 24 LED channels at 80 mA

3 September 2008 Opto-Electronics

The STP24DP05 from STMicroelectronics provides 24 constant-current outputs capable of driving RGB LEDs at up to 80 mA, within a compact TQFP48, 7 x 7 mm footprint. Primary applications include full-colour RGB video display panels for indoor or outdoor use, LED advertisement billboards, graphic boards, coloured traffic signs, and variable message signs. The device is a serial-in, parallel-out FIFO supporting operation at 25 MHz for high serial data rates, enabling responsive image rendition. The driving current of 5 to 80 mA per LED channel is adjusted using one external resistor per colour group of eight outputs, allowing the maximum brightness of red, green and blue channels to be optimised independently. The STP24DP05 also implements built-in error detection for short-to-ground, short-to-supply or open-line faults. The error-detection mode can be controlled via the dedicated pin provided or using specific digital keys through the device’s SPI port.

Further reading:

Mouser broadens its LED lineup
Opto-Electronics
Mouser has broadened its LED lineup with diverse solutions designed to support lighting, medical, and smart home applications.

Read more...

---

High-quality optoelectronics components
Opto-Electronics
LEDs make up the bulk of Lite-On’s product range, and all popular types are manufactured from the ubiquitous round LEDs designed for through-hole mounting to state-of-the-art structures, integrated with programmable control systems.

Read more...

---

NTC thermistors for laser diode temperature measurement
Electrocomp Opto-Electronics
These bondable NTC thermistors can be mounted with Au wire bonding inside the package for highly accurate temperature detection of laser diodes used for optical communication.

Read more...

---

Touch screen enables wise data visualisation
Rugged Interconnect Technologies Opto-Electronics
ADLINK offers comprehensive industrial-grade touch monitors and smart panels with in-house value-added customisation.

Read more...

---

Upgraded GUIs on STM32 microcontrollers
Altron Arrow Opto-Electronics
TouchGFX has now been upgraded to version 4.22, which sees many new features to aid developers with their user experience.

Read more...

---

Ultrabright chip LEDs
Avnet Abacus Opto-Electronics
Vishay’s range of high-reliability ultrabright chip LEDs feature a tiny footprint with excellent efficiency, and are available in two sizes, SMD 0603 and 0402.

Read more...

---

Efficient industrial LED lighting systems
Radél Opto-Electronics
icotek produces a range of smart lighting solutions for control panels, machinery and server racks, to provide effective lighting in various applications.

Read more...

---

LIDAR filters
Editor's Choice Opto-Electronics
LIDAR filters must be designed with the specific application and sensor type in mind to maximise signal-to-noise ratio.

Read more...

---

New UHF RFID increases picking efficiency
Brady Corporation Opto-Electronics
Brady’s new LED UHF RFID label and reader solution is optimised to increase picking efficiency, as it is now possible to pinpoint the location of assets with greater accuracy.

Read more...

---

Battle germs with UV-C LEDs
CST Electronics Opto-Electronics
LITEON provides compact LED solutions for ultraviolet-C applications that can battle germs and viruses by deactivating the reproduction process of microorganisms.

Read more...

---