STP16DPPS05 Datasheet, PDF (1/35 Pages) STMicroelectronics – Low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving

STP16DPPS05
Low voltage 16-bit constant current LED sink driver with output error
detection and auto power-saving
Datasheet - production data
LED panel displays. The device features 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
QSOP-24
SO-24
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
TSSOP24
TSSOP24
(exposed pad)
occur on the output line: short to GND, short to V_O
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
Features
implemented without increasing the pin count,
through a secondary function of the output enable
• Low voltage power supply down to 3 V
• 16 constant current output channels
• Adjustable output current through external
resistor
and latch pin (DM1 and DM2 respectively). A
dedicated logic sequence allows the device to
enter or exit from detection mode. The
STP16DPPS05 output current can be adjusted
through an external resistor to control the light
• Short and open output error detection
• Serial data IN/parallel data OUT
• Auto power-saving
• 3.3 V MCU-driving capability
intensity of the LEDs. LED brightness is
adjustable from 0% to 100% via the OE/DM2 pin.
The auto power-shutdown and auto power-ON
feature allows the device to save power with no
external intervention. The STP16DPPS05
• Output current: 3 to 40 mA
• 30 MHz clock frequency
• Available in high thermal efficiency TSSOP
exposed pad
guarantees a 20 V output driving capability,
allowing users to connect more LEDs in series.
The high 30 MHz clock frequency makes the
device suitable for high data rate transmission.
The 3.3 V supply is well suited for applications
• ESD protection: 2 kV HBM, 200 V MM
which interface a 3.3 V MCU. Compared to a
standard TSSOP package, the TSSOP with
Description
exposed pad increases heat dissipation capability
by a factor of 2.5
The STP16DPPS05 is a monolithic, low voltage,
low current power 16-bit shift register designed for
Table 1. Device summary
Order codes
Package
Packaging
STP16DPPS05MTR
STP16DPPS05TTR
STP16DPPS05XTTR
STP16DPPS05PTR
SO-24 (tape and reel)
TSSOP24 (tape and reel)
TSSOP24 exposed pad
(tape and reel)
QSOP-24
1000 parts per reel
2500 parts per reel
2500 parts per reel
2500 parts per reel
June 2014
This is information on a product in full production.
DocID15817 Rev 3
1/35
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