AS1109-BSOT Ver la hoja de datos (PDF) - austriamicrosystems AG

Número de pieza

componentes Descripción

Fabricante

AS1109-BSOT

Constant-Current, 8-Bit LED Driver with Diagnostics

austriamicrosystems AG 

AS1109

Datasheet - Detailed Description

The 8-bit data register will latch the data of the shift register at each rising edge of LD. This data is then used to drive the current generator output

drivers to switch on the corresponding LEDs as OEN goes low.

8.2 Timing Diagrams

This section contains timing diagrams referenced in other sections of this data sheet.

Figure 10. Normal Mode Timing Diagram

tW(CLK)

CLK

50%

50%

50%

tSU(D) tH(D)

SDI

50%

50%

SDO

LD

OEN

OUTNx

50%

tP1

50%

tSU(L)

tW(L)

50%

tH(L)

OEN Low = Output Enabled

50%

tP2

OUTNx High = Output Off

OUTNx Low = Output On

Figure 11. Output Delay Timing Diagram

OEN

OUTN0

OUTN1

OUTN7

tW(OE)

50%

50%

tP3

90%

50%

10%

tOF

tSTAG

tP3

90%

10%

50%

tOR

tSTAG

50%

50%

7XtSTAG

50%

7XtSTAG

50%

www.ams.com/LED-Driver-ICs/AS1109

Revision 1.21

8 - 24

Share Link: