STAP08DP5XTTR STMicroelectronics

STAP08DP05 Low voltage 8-bit constant current LED sink driver with output error detection for automotive applications Datasheet - production data Description The STAP08DP05 is a monolithic, low voltage, low current power 8-bit shift register designed for LED panel displays. The STAP08DP05 contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. In the TSSOP16 (Exposed pad) output stage, eight regulated current sources are designed to provide 5-100 mA constant current to drive the LEDs. The detection circuit checks 3 different conditions Features that can occur on the output line: short to GND, short to V or open line. The data detection O AECQ100 qualification results are loaded in the shift register and shifted Low voltage power supply down to 3 V out via the serial line output. 8 constant current output channels STAP08DP05 detection functionality is Adjustable output current through external implemented without increasing the pin number. resistor Through a secondary function of the output enable and latch pin (DM1 and DM2 respectively), Short and open output error detection a dedicated logic sequence allows the device to Serial data IN/parallel data OUT enter or leave detection mode. Through an Able to drive 3.3 V microcontroller external resistor, users can adjust the output current of the STAP08DP05, thus controlling the Output current: 5-100 mA light intensity of the LEDs. In addition, the user 30 MHz clock frequency can adjust the intensity of the brightness of the Available in high thermal efficiency TSSOP LEDs from 0% to 100% through the OE/DM2 pin. exposed pad The STAP08DP05 guarantees a 20 V output ESD protection 2.5 kV HBM driving capability, allowing users to connect more LEDs in series. The high clock frequency, 30 MHz, also satisfies the system requirement of Applications high volume data transmission. The 3.3 V of Dashboard and infotainment backlighting voltage supply is very useful for applications that interface any microcontroller from 3.3 V. Exterior/interior lighting Compared with a standard TSSOP package, the DTRLs TSSOP exposed pad increases the capability of heat dissipation by a factor of 2.5. Table 1. Device summary Order code Package Packing STAP08DP5XTTR TSSOP16 exposed-pad (Tape and reel) 2500 parts per reel November 2015 DocID024305 Rev 6 1/28 This is information on a product in full production. www.st.comContents STAP08DP05 Contents 1 Summary description 4 1.1 Pin connections and description . 4 2 Block diagram 5 3 Maximum rating . 6 3.1 Absolute maximum ratings . 6 3.2 Thermal data . 6 3.3 Recommended operating conditions . 7 4 Electrical characteristics . 8 5 Switching characteristics . 9 6 Equivalent circuit and outputs 10 7 Truth table and timing diagrams 11 7.1 Truth table .11 7.2 Timing diagrams .11 8 Typical characteristics 14 9 Test circuit 17 10 Detection mode functionality . 19 10.1 Phase one: entering error detection mode . 19 10.2 Phase two: error detection mode 20 10.3 Phase three: resuming normal mode . 21 10.4 Error detection conditions . 22 2/28 DocID024305 Rev 6