STAP16DPPS05(2015) 查看數據表（PDF） - STMicroelectronics

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STAP16DPPS05
(Rev.:2015)

Low voltage 16-bit constant current LED sink driver with output error detection and auto power-saving for automotive applications

STMicroelectronics 

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 VO

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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