DM164 datasheet(6/30 Pages) SITI

6 / 30 page

點晶科技股份有限公司

SILICON TOUCH TECHNOLOGY INC.

DM164

8x3-CHANNEL CONSTANT CURRENT LED DRIVERS

Version:A.002

Page 5

GCKO

Clock output.

GCKO

= GCK

EN_B

Blank all outputs.

When EN_B = H, all outputs are forced OFF.

When EN_B = L, all outputs are controlled by

grayscale PWM control.

MSEL

When MSEL = H, the device is operated in

Dot Correction Data & Global Brightness Control Data

Input Mode (D&G mode).

When MSEL = L, the device is operated in

Grayscale PWM Data Input Mode (GD mode).

ALARM

Output open drain terminal for an alarm function.

when EN_B = L, It will go low as LED open

when EN_B = H, It will go low as chip overheated.

IWAVE

When IWAVE = H, traditional Iout waveform.

When IWAVE = L, average separate Iout waveform.

ONEST

When ONEST = H, one-shot function is enabled.

When ONEST = L, one-shot function is disabled.

Maximum Ratings (Ta=25°C, Tj(max) = 150°C)

CHARACTERISTIC

SYMBOL

RATING

UNIT

Supply Voltage

VDD

-0.3 ~ 7.0

Input Voltage

VIN

-0.3 ~ VDD+0.3

Output Current

IOUT

Output Voltage

VOUT

-0.3 ~ 17

DCK Frequency

FDCK

Cascade Vdd=5V

Vdd=3.3V

MHz

GCK Frequency

FGCK

Cascade Vdd=5V

Vdd=3.3V

MHz

GND Terminal Current

IGND

2200

Power Dissipation

4.00 ( QFN48); 2.16 (LQFP48)

(Ta=25

°C)

Thermal Resistance

Rth(j-a)

31.22 ( QFN48 ); 57.86 (LQFP48)

℃/W

Operating Temperature

Top

-40 ~ 85

℃

Storage Temperature

Tstg

-55 ~ 150

℃

Recommended Operating Condition

DC Characteristics (Ta = 25

°C)

CHARACTERISTIC

SYMBOL

CONDITION

MIN.

TYP.

MAX.

UNIT

Supply Voltage

VDD

⎯

5.5

Output Voltage

VOUT

⎯

OUTn

⎯

IOH

SERIAL-OUT

⎯

Output Current

IOL

SERIAL-OUT

⎯

VIH

⎯

0.7 VDD

⎯

VDD+0.2

Input Voltage

VIL

⎯

-0.2

⎯

0.3 VDD

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