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 6

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DM634

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Output Leakage Current

IOL

VOH = 17 V

⎯

⎯

±1.0

uA

VOL

IOL = 1.5 mA

⎯

⎯

0.4

Output Voltage (S-OUT)

VOH

IOH= -1.3mA

4.5

⎯

⎯

V

Output Current Skew

(Channel-to-Channel)

*1

IOL1

⎯

⎯

±3

%

Output Current Skew

(Chip-to-Chip)

*2

IOL2

VOUT = 1.0 V

Rrext = 2.2 K

Ω

18.275

⎯

20.607

mA

Output Voltage Regulation

% / VOUT

Rrext = 2.2 K

Ω

VOUT = 1 V ~ 3 V

⎯

±0.1

±0.5

Supply Voltage Regulation

% / VCC

Rrext = 2.2 K

Ω

⎯

±1

±4

% / V

power on

all pins are open

unless VCC and GND

(free-running mode)

⎯

5.41

6.5

mA

power on

all pins are open

unless VCC and GND

(external GCK mode)

⎯

4.61

⎯

input signal is static

Rrext = 12.4 K

Ω

all outputs turn off

⎯

5.97

⎯

input signal is static

Rrext = 2.2 K

Ω

all outputs turn off

⎯

8.27

⎯

Supply Current

*3

input signal is static

Rrext = 570

Ω

all outputs turn off

⎯

17.61

⎯

mA

Iout = (Imax + Imin) / 2.