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STAP16DPPS05 PDF预览

STAP16DPPS05

更新时间: 2024-10-29 01:18:47
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意法半导体 - STMICROELECTRONICS /
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33页 997K
描述
Low voltage 16-bit constant current LED sink driver

STAP16DPPS05 数据手册

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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  
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.  
+76623ꢀꢁ  
ꢂH[SRVHGꢃSDGꢄ  
The STAP16DPPS05 features the open and short  
LED detection on the outputs. The detection  
circuit checks 3 different conditions which may  
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 STP16DPPS05 thus controlling the  
light intensity of the LEDs. In addition, the user  
can adjust the intensity of the brightness of the  
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  
external intervention. The STAP16DPPS05  
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 interfacing any  
Features  
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  
Auto power-saving  
Output current: 3 - 40 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  
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.  
Dashboard and infotainment backlighting  
Exterior/interior lighting  
DTRLs  
Table 1. Device summary  
Order code  
Package  
Packing  
STAP16DPPS05XTTR  
HTSSOP24 (exposed pad)  
2500 parts per reel  
November 2015  
DocID024306 Rev 6  
1/33  
This is information on a product in full production.  
www.st.com  
 

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