點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC

.

新竹市科學園區展業一路9號7樓之1

9-7F-1, Prosperity RoadⅠ, Hsin-Chu, Taiwan, R.O.C.

Tel：886-3-5645656

Fax：886-3-5645626

16-channel 16-bit PWM Constant Current LED Driver

Version : A.003

Page 8

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DM634

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

GCK-to-OUT

⎯

47.5

⎯

DCK(rising)-to-DAO

⎯

25

⎯

Propagation Delay

(

DCK(falling)-to-DAO

tpLH

⎯

14.4

⎯

GCK-to-OUT

⎯

28.5

⎯

DCK(rising)-to-DAO

⎯

24

⎯

Propagation Delay

(

DCK(falling)-to-DAO

tpHL

⎯

9.7

⎯

Output Current Rise Time

tor

⎯

15

⎯

Output Current Fall Time

tof

⎯

7.5

⎯

Output to output Delay Time Unit

td

⎯

33

⎯

ns

Output Current

(Propagation Delay after LAT trigger)

top

*1

VIH = VCC

VIL = GND

Rrext = 2.2 K

Ω

VL = 5.0 V

CL = 13 pF

⎯

⎯

4.6

ms

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

GCK-to-OUT

⎯

51.5

⎯

DCK(rising)-to-DAO

⎯

30.5

⎯

Propagation Delay

(

DCK(falling)-to-DAO

tpLH

⎯

18.3

⎯

GCK-to-OUT

⎯

31.5

⎯

DCK(rising)-to-DAO

⎯

29

⎯

Propagation Delay

(

DCK(falling)-to-DAO

tpHL

⎯

14.4

⎯

Output Current Rise Time

tor

⎯

20

⎯

Output Current Fall Time

tof

⎯

10

⎯

Output to output Delay Time Unit

td

⎯

34

⎯

ns

Output Current

(Propagation Delay after LAT trigger)

top

*1

VIH = VCC

VIL = GND

Rrext = 2.2 K

Ω

VL = 3.3 V

CL = 13 pF

⎯

⎯

4.6

ms

OUTn

DAO

REXT

VCC

CL

VL

Switching Characteristics Test Circuit

A

Rrext

DAI

LAT

DCK

SOMODE

/GCK

CL

CL

CL

CL

GND