STP16DPPS05MTR STMicroelectronics

STP16DPPS05 Low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving Datasheet - production data 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 STP16DPPS05 features open and short LED detection on the outputs. The detection circuit checks for 3 different conditions that can occur on the output line: short to GND, short to VO or open line. The data detection results are loaded in the shift registers and shifted out via the serial line output. The detection functionality is implemented without increasing the pin count, through a secondary function of the output enable and latch Features pin (DM1 and DM2 respectively). A dedicated logic sequence allows the device to enter or exit Low voltage power supply down to 3 V from detection mode. The STP16DPPS05 output 16 constant current output channels current can be adjusted through an external Adjustable output current through external resistor to control the light intensity of the LEDs. resistor LED brightness is adjustable from 0% to 100% Short and open output error detection via the OE/DM2 pin. Serial data IN/parallel data OUT Auto power-saving The auto power-shutdown and auto power-ON 3.3 V MCU-driving capability feature allows the device to save power with no Output current: 3 to 40 mA external intervention. The STP16DPPS05 30 MHz clock frequency guarantees a 20 V output driving capability, Available in high thermal efficiency TSSOP allowing users to connect more LEDs in series. exposed pad The high 30 MHz clock frequency makes the ESD protection: 2 kV HBM, 200 V MM device suitable for high data rate transmission. The 3.3 V supply is well suited for applications Description which interface a 3.3 V MCU. Compared to a standard TSSOP package, the TSSOP with The STP16DPPS05 is a monolithic, low voltage, exposed pad increases heat dissipation capability low current power 16-bit shift register designed by a factor of 2.5. for LED panel displays. The device features a 16- Table 1: Device summary Order code Package Packing STP16DPPS05MTR SO-24 (tape and reel) 1000 parts per reel STP16DPPS05TTR TSSOP24 (tape and reel) 2500 parts per reel TSSOP24 exposed pad STP16DPPS05XTTR 2500 parts per reel (tape and reel) STP16DPPS05PTR QSOP-24 2500 parts per reel April 2017 DocID15817 Rev 4 1/36 www.st.com This is information on a product in full production. Contents STP16DPPS05 Contents 1 Summary description ...................................................................... 3 1.1 Pin connection 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 ..................................................................... 25 8.1 QSOP-24 package information ....................................................... 26 8.2 SO-24 package information ............................................................ 28 8.3 TSSOP24 package information ....................................................... 29 8.4 TSSOP exposed pad package information ..................................... 31 8.5 TSSOP24, TSSOP24 exposed pad and ............................................ SO-24 packing information .............................................................. 33 9 Revision history ............................................................................ 35 2/36 DocID15817 Rev 4