點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

8-bit Constant Current LED Driver with Error Detection

Version:A.001

Page 6

未經授權而逕予重製、複製、使用或公開本文件，行為人得被追究侵權之相關民刑事責任

Unauthorized reproduction, duplication, use or disclosure of this document will be deemed as infringement.

DM117

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Input Voltage “H” Level

VIH

CMOS logic level

0.8VCC

⎯

VCC

Input Voltage “L” Level

VIL

CMOS logic level

GND

⎯

0.2VCC

V

Output Leakage Current

IOL

VOH = 17 V

⎯

⎯

±1.0

uA

VOL

IOL = 1.5 mA

⎯

⎯

0.2

Output Voltage (S-OUT)

VOH

IOH= 1.6 mA

VCC-0.2

⎯

⎯

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

23.5

25

26.5

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

LED Open Detection Threshold

V(od)

⎯

0.3

⎯

LED Short Detection Threshold

V(sd)

all outputs turn on

⎯

0.5VCC

⎯

V

Thermal Shutdown Threshold

T(alm)

⎯

110

⎯

Thermal Shutdown Threshold

T(sht)

junction temperature

⎯

180

⎯

°C

power on

all pins are open

unless VCC and GND

⎯

2.0

⎯

input signal is static

Rrext = 2.9 K

Ω

all outputs turn off

⎯

3.1

⎯

input signal is static

Rrext = 2.9 K

Ω

all outputs turn on

⎯

4.0

⎯

input signal is static

Rrext = 560

Ω

all outputs turn off

⎯

7.5

⎯

Supply Current

*3

input signal is static

Rrext = 560

Ω

all outputs turn on

⎯

8.1

⎯

mA

Iout = (Imax + Imin) / 2.