www.austriamicrosystems.com/LED-Driver-ICs/AS1113

Revision 1.04

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AS1113

Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s

Switching Characteristics

VDD = 3.0 to 5.5V, VDS = 0.8V, VIH = VDD, VIL = GND, REXT = 372

Ω, VLOAD = 4.0V, RLOAD = 64Ω, CLOAD = 10pF; guar-

anteed by design.

*

If multiple AS1113 devices are cascaded and tr or tf is large, it may be critical to achieve the timing required for data

transfer between two cascaded LED drivers.

Table 4. Switching Characteristics for VDD = 5V

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

tP1

Propagation Delay Time (Without

Staggered Output Delay)

CLK - SDO

5

10

ns

tP2

LD - OUTNn

100

200

tP3

OEN - OUTNn

100

200

tP4

Propagation Delay Time

10

ns

tW(CLK)

Pulse Width

CLK

15

ns

tW(L)

LD

15

tW(OE)

OEN (@IOUT < 60mA)

200

tR

*

CLK Rise Time

500

ns

tF

*

CLK Fall Time

500

ns

tOR

Output Rise Time of VOUT (Turn Off)

100

200

ns

tOF

Output Fall Time of VOUT (Turn On)

100

300

ns

tSU(D)

Setup Time for SDI

5

ns

tH(D)

Hold Time for SDI

5

ns

tSU(L)

Setup Time for LD

5

ns

tH(L)

Hold Time for LD

5

ns

tTESTING

OEN Time for Error Detection

2000

ns

tSTAG

Staggered Output Delay

20

40

ns

tSU(OE)

Output Enable Setup Time

20

ns

tGSW(ERROR)

Global Error Switching Setup Time

10

ns

tSU(ERROR)

Global Error Detection Setup Time

10

ns

tP(I/O)

Propagation Delay Global Error Flag

5

ns

tSW(ERROR)

Switching Time Global Error Flag

10

ns

fCLK

Maximum Clock Frequency

(Cascade Operation)

30

50

MHz

tP3,ON

Low-Current Test Mode

Propagation Delay Time

Turn ON

3

5

µs

tP3,OFF

Turn OFF

0.05

0.1

µs

tREXT2,1

External Resistor Reaction Time

Change from REXT1 = 372

Ω,

IOUT1 = 50.52mA to REXT2 =

37.2k

Ω, IOUT2 < 1mA

0.5

1

µs

tREXT2,1

External Resistor Reaction Time

Change from REXT1 = 37.2k

Ω,

IOUT1 = 0.5mA to REXT2 =

372

Ω, IOUT2 > 25mA

0.5

1

µs