STP08CDC596 is a high-brightness LED driver from ST. It has a full output error detection function, which can be used to check the output status through software.
The document describes a solution for driving high-brightness LEDs using the STEVAL-ILLO02Vx evaluation board. This board features five 8-channel STPO8CDC596 drivers controlled by an ST7FLITE3x microcontroller and supports two versions: one with OSRAM LEDs (STEVAL-ILLO02V1/V3) and another with Toshiba or Vishay LEDs (STEVAL-ILLO02V2/V4). The board includes a DC-DC converter, a control panel with switches and potentiometers, and a PC GUI for monitoring LED status.
| Input voltage range | 7 V up to 32 V |
|---|---|
| LED matrix configuration | 40 LEDs in a 5x8 matrix |
| PWM frequency | 244 Hz |
| SPI communication speed | 250 kHz to 25 MHz |
| SCI serial parameters | 4800, 8, N, 1 |
Drivers enter Error Detection mode if a '101' pulse is sent on the OE pin and the LE pin is sampled as high voltage at the 4th rising edge of CLK.
It is recommended to send all data to the drivers as '1' after entering Error Detection mode.
The state of the OE pin must be pulled down to low voltage for at least 2 microseconds.