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
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.
+76623ꢀꢁ
ꢂH[SRVHGꢃSDGꢄ
The STAP16DPS05 features the open and short
LED detections on the outputs.The
STAP16DPS05 ensures the backward
Features
compatibility with the STP16C/L596. The
detection circuit checks 3 different conditions,
which can occur on the output line: short to GND,
short to VO or open line. The data detection
results are loaded in the shift register and shifted
out via the serial line output. The detection
functionality is implemented without increasing
the pin number. Through a secondary function of
the output enable and latch pin (DM1 and DM2
respectively), a dedicated logic sequence allows
the device to enter or leave detection mode.
Through an external resistor, users can adjust the
output current of the STAP16DPS05, thus
controlling the light intensity of the LEDs. In
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
a 20 V output driving capability, allowing users to
connect more LEDs in series. The high clock
frequency, 30 MHz, also satisfies the system
requirement of high volume data transmission.
The 3.3 V of voltage supply is very useful for
applications that interface any microcontroller
from 3.3 V micro. Compared with a standard
TSSOP package, the TSSOP exposed pad
increases the capability of heat dissipation by a
factor of 2.5.
• AECQ100 qualification
• Low voltage power supply down to 3 V
• 16 constant current output channels
• Adjustable output current through external
resistor
• Short and open output error detection
• Serial data IN/parallel data OUT
• 3.3 V micro driver-able
• Output current: 5-100 mA
• Auto power-saving
• Max. clock frequency: 30 MHz
• 20 V current generator rated voltage
• Power supply voltage: from 3 V to 5.5 V
• Thermal shutdown for overtemperature
protection
• ESD protection 2.0 kV HBM
Applications
• Dashboard and infotainment backlighting
• Exterior/interior lighting
• DTRLs
Table 1. Device summary
Order code
Package
Packing
STAP16DPS05XTTR
HTSSOP24 (exposed pad)
DocID024315 Rev 6
2500 parts per reel
November 2015
1/34
This is information on a product in full production.
www.st.com