STAP16DPPS05 Datasheet, PDF (1/33 Pages) STMicroelectronics – Low voltage 16-bit constant current LED sink driver

STAP16DPPS05
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 STAP16DPPS05 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 3 to 40 mA of constant current to drive the
LEDs.
Features
The STAP16DPPS05 features the open and short
LED detection on the outputs. The detection
• AECQ100 qualification
circuit checks 3 different conditions which may
• Low voltage power supply down to 3 V
• 16 constant current output channels
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 out via the
• Adjustable output current through external
serial line output. The detection functionality is
resistor
implemented without increasing the pin number
• Short and open output error detection
• Serial data IN/parallel data OUT
through a secondary function of the output enable
and latch pin (DM1 and DM2 respectively). A
dedicated logic sequence allows the device to
• 3.3 V micro driver-able
enter or leave detection mode. Through an
• Auto power-saving
• Output current: 3 - 40 mA
external resistor, users can adjust the output
current of the STP16DPPS05 thus controlling the
light intensity of the LEDs. In addition, the user
• Auto power-saving
can adjust the intensity of the brightness of the
• Max. clock frequency: 30 MHz
• 20 V current generator rated voltage
LED’s from 0% to 100% through the OE/DM2 pin.
The auto power shutdown and auto power-ON
feature allows the device to save power with no
• Power supply voltage: from 3 V to 5.5 V
external intervention. The STAP16DPPS05
• Thermal shutdown for overtemperature
protection
• ESD protection 2.0 KV HBM
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
Applications
useful for applications interfacing any
• Dashboard and infotainment backlighting
microcontroller from 3.3 V micro. Compared with
a standard TSSOP package, the TSSOP exposed
• Exterior/interior lighting
pad increases the capability of heat dissipation by
• DTRLs
a factor of 2.5.
Table 1. Device summary
Order code
Package
Packing
STAP16DPPS05XTTR
HTSSOP24 (exposed pad)
2500 parts per reel
November 2015
This is information on a product in full production.
DocID024306 Rev 6
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