12-Channels Pre-programmable Constant Current LED Driver

Version:A.006

Page 6

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DM621

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Input Voltage “H” Level

VIH

⎯

3

⎯

5

Input Voltage “L” Level

VIL

⎯

0

⎯

1

V

Output Leakage Current

VOUT = 28 V

⎯

⎯

1.0

uA

Output Current Skew

(Bit-Bit)

Δ

Iout

VOUT = 1V

REXT=5 KΩ

⎯

⎯

±

4

%

Output Current Skew

(Chip-Chip)

Δ

Iout

VOUT = 1V

REXT=5 KΩ

⎯

⎯

±

6

%

Output Voltage Regulation

I

Vout = 1.2V ~ 5.0V

(% / Vout)

REXT=5 KΩ

⎯

0.1

0.5

% / V

Supply Voltage Regulation

% / VREF

VDD = 5V ~12V

⎯

0.5

1

% / V

Internal Oscillator Frequency

fosc

VDD = 5V ~12V

9.8

12.3

14.75

MHz

REXT = OPEN, all outputs off

⎯

1.9

⎯

Supply Current “OFF”

REXT = 2KΩ (Iout=60mA),

all outputs off

⎯

17

⎯

Supply Current “ON”

REXT = 2KΩ (Iout=60mA),

all outputs on

⎯

17

⎯

mA

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

SOUT Propagation Delay

(“L” to “H”)

10

25

40

ns

SOUT Propagation Delay

(“H” to “L”)

DCK to SOUT

5

20

35

ns

DCKO Propagation Delay

(“L” to “H”)

4

8

12

ns

DCKO Propagation Delay

(“H” to “L”)

DCK to DCKO

5

10

15

ns

Output Current Rise Time

18

25

32

ns

Output Current Fall Time

8

15

22

ns

DCKO to SOUT Delay Time

12

⎯

⎯

ns

SIN Setup Time

3

⎯

⎯

ns

SIN Hold Time

8

⎯

⎯

ns

Command Delay Time

12

20

⎯

ns

SIN to SOUT Rise Delay Time (CMD Method)

6

9

12

ns

SIN to SOUT Fall Delay Time (CMD Method)

VDD=5V

VIH=3V

VIL=GND

Rext=5KΩ

VLED=5V

RL=62

Ω

CL=8pF

5

8

11

ns