STAP16DPS05 Datasheet, PDF (1/34 Pages) STMicroelectronics – Low voltage 16-bit constant current LED sink driver

STAP16DPS05
Low voltage 16-bit constant current LED sink driver with output error
detection and auto power-saving for automotive applications
Datasheet - production data
Description
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The STAP16DPS05 is a monolithic, low voltage,
low current power 16-bit shift register 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 5-100 mA constant current to drive the
LEDs.
The STAP16DPS05 features the open and short
Features
LED detections on the outputs.The
STAP16DPS05 ensures the backward
• AECQ100 qualification
compatibility with the STP16C/L596. The
• Low voltage power supply down to 3 V
• 16 constant current output channels
• Adjustable output current through external
detection circuit checks 3 different conditions,
which can occur on the output line: short to GND,
short to V_O or open line. The data detection
results are loaded in the shift register and shifted
resistor
out via the serial line output. The detection
• Short and open output error detection
• Serial data IN/parallel data OUT
functionality is implemented without increasing
the pin number. Through a secondary function of
the output enable and latch pin (DM1 and DM2
• 3.3 V micro driver-able
respectively), a dedicated logic sequence allows
• Output current: 5-100 mA
• Auto power-saving
the device to enter or leave detection mode.
Through an external resistor, users can adjust the
output current of the STAP16DPS05, thus
• Max. clock frequency: 30 MHz
controlling the light intensity of the LEDs. In
• 20 V current generator rated voltage
• Power supply voltage: from 3 V to 5.5 V
addition, the user can adjust the intensity of the
brightness of the LEDs from 0% to 100% through
the OE/DM2 pin. The STAP16DPS05 guarantees
• Thermal shutdown for overtemperature
a 20 V output driving capability, allowing users to
protection
connect more LEDs in series. The high clock
• ESD protection 2.0 kV HBM
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
applications that interface any microcontroller
• Dashboard and infotainment backlighting
from 3.3 V micro. Compared with a standard
TSSOP package, the TSSOP exposed pad
• Exterior/interior lighting
increases the capability of heat dissipation by a
• DTRLs
factor of 2.5.
Table 1. Device summary
Order code
Package
Packing
STAP16DPS05XTTR
HTSSOP24 (exposed pad)
2500 parts per reel
November 2015
This is information on a product in full production.
DocID024315 Rev 6
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