DM164 SITI [Silicon Touch Technology Inc.], DM164 Datasheet - Page 2

• Manufacturer Part Number: DM164
• Description: 8x3-CHANNEL CONSTANT CURRENT LED DRIVER
• Manufacturer: SITI [Silicon Touch Technology Inc.]

DM164
General Description
data latches for grayscale PWM data (GD mode
mode
resistors, 65,536 grayscale PWM function unit, 128 levels current adjustment for each
channel and 256 levels global brightness control (White balance). Each channel provides
maximum current of 90mA. The DM164 also supports the LED open detection capability,
thermal alarm and shutdown function. There are two methods to communicate error
signals to the system. One is through serial output data to indicate which channel has
failure. The other is by means of dedicated Alarm pin.
Features
Package
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
◆
*1: See Page 10
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
The DM164 is a LED current sink driver incorporating independent shift registers and
LQFP48 (7mmX7mm), QFN48 (7mmX7mm)
8x3-CHANNEL CONSTANT CURRENT LED DRIVERS
*1
Constant current outputs with current value set by 3 external resistors.
Max PWM clock frequency
Cascade:
Max data clock frequency
Cascade:
Maximum output current: 90mA
Maximum output voltage: 17V
16-bit grayscale for each LED
8-bit current adjustment for global brightness control (White Balance)
7-bit current adjustment for each LED (Dot Correction)
Supply Voltage: 3V to 5.5V
LED Open Detection
Thermal Alarm and Shutdown
One-Shot Option
Built-in Buffer for Data, PWM Clock, Latch signal and Data Clock
Average Separate IOUT PWM Waveform Option
), 8x3-channels constant current circuitry with current value set by 3 external
點晶科技股份有限公司
SILICON TOUCH TECHNOLOGY INC.
Alarm (junction temperature >130
Shutdown (junction temperature > 170
36MHz@VDD=3.3V(Refresh rate≒550Hz),
30MHz@VDD=3.3V, 35MHz@VDD=5V
o
C)
o
C)
*1
) and current adjustment data (D&G
Version:A.002
40MHz@VDD=5V (610Hz)
DM164
Page 1