STAP16DPPS05 Automotive-grade low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving Datasheet - production data designed for LED panel displays. The device contains a 16-bit serial-in, parallel-out shift register that feeds a 16-bit D-type storage register. In the output stage, sixteen regulated current sources are designed to provide 3 to 40 mA of constant current to drive the LEDs. The STAP16DPPS05 features the open and short LED detection on the outputs. The detection circuit checks 3 different conditions which may occur on the output line: short to GND, short to VO or open line. The data detection Features results are loaded in the shift register and shifted AECQ100 qualified out via the serial line output. The detection Low voltage power supply down to 3 V functionality is implemented without increasing 16 constant current output channels the pin number through a secondary function of Adjustable output current through external the output enable and latch pin (DM1 and DM2 resistor respectively). A dedicated logic sequence allows the device to enter or leave detection mode. Short and open output error detection Through an external resistor, users can adjust Serial data IN/parallel data OUT the output current of the STP16DPPS05 thus 3.3 V micro driver-able controlling the light intensity of the LEDs. In Auto power-saving addition, the user can adjust the intensity of the Output current: 3 - 40 mA brightness of the LEDs from 0 % to 100 % Auto power-saving through the OE/DM2 pin. The auto power Max. clock frequency: 30 MHz 20 V current generator rated voltage shutdown and auto power-ON feature allows the Power supply voltage: from 3 V to 5.5 V device to save power with no external Thermal shutdown for overtemperature intervention. The STAP16DPPS05 guarantees a protection 20 V output driving capability, allowing users to ESD protection 2.0 KV HBM connect more LEDs in series. The high clock frequency, 30 MHz also satisfies the system requirement of high volume data transmission. Applications The 3.3 V of voltage supply is very useful for Dashboard and infotainment backlighting applications interfacing any microcontroller from Exterior/interior lighting 3.3 V micro. Compared with a standard TSSOP DTRLs package, the TSSOP exposed pad increases the capability of heat dissipation by a factor of 2.5. Description The STAP16DPPS05 is a monolithic, low voltage, low current power 16-bit shift register Table 1: Device summary Order code Package Packing STAP16DPPS05XTTR TSSOP24 (exposed pad) 2500 parts per reel November 2017 DocID024306 Rev 7 1/29 www.st.com This is information on a product in full production. Contents STAP16DPPS05 Contents 1 Summary description ...................................................................... 3 1.1 Pin connections and description ........................................................ 3 2 Electrical ratings ............................................................................. 4 2.1 Absolute maximum ratings ................................................................ 4 2.2 Thermal data ..................................................................................... 4 2.3 Recommended operating conditions ................................................. 5 3 Electrical characteristics ................................................................ 6 4 Equivalent circuit and outputs ....................................................... 8 5 Timing diagrams ............................................................................ 11 6 Typical characteristics .................................................................. 14 7 Error detection mode functionality .............................................. 18 7.1 Phase one: entering error detection mode ...................................... 18 7.2 Phase two: error detection .............................................................. 19 7.3 Phase three: resuming normal mode .............................................. 21 7.4 Error detection conditions ............................................................... 21 7.5 Auto power-saving .......................................................................... 23 8 Package information ..................................................................... 24 8.1 TSSOP24 exposed pad package information ................................. 25 8.2 TSSOP24 packing information ........................................................ 27 9 Revision history ............................................................................ 28 2/29 DocID024306 Rev 7