LITEMAX SSD3823 Spanpixel, User Manual

Page: 10 / 36

Page 10
LED Driving Board
Operating Characteristics
Item Symbol
Conditions
MIN TYP MAX. Unit Remark
Input Voltage Vin 12 24 26 V
VCC
Input Current
(Low Brightness)
IinL
VIN=VCC,Vadj=5V 3 ----- -----
mA
Input Current
(High Brightness)
IinH
VIN=VCC,Vadj=0V 3.77 1.87 1.73
A
LED Current
(Low Brightness)
IoutL
VIN=VCC,Vadj=5V
0.0 ----- -----
Arms
LED Current
(High Brightness)
IoutH
VIN=VCC,Vadj=0V
----- ----- -----
A
J1 and J2 output
0.647 0.647 0.647
A
J3 and J4 output
0.647 0.647 0.647
A
J5 and J6 output
1.294 1.294 1.294
A
The output
assembles
Working Frequency
Freq
VIN=VCC,Vadj=0V
340 400 460 KHZ
PWM Frequency
Freq
VIN=VCC
180 200 220 HZ
Brightness Control Vadj
Connection of Voltage
0.5 ----- 4.8 V
Vadj
±5%
ON/OFF Control Von/off
Normal Operation
2 ----- 5 V
Output Voltage
Vout
VIN=VCC,Vadj=0V
----- ----- ----- V J1 and J2 output
32.943 32.943 32.943 V J3 and J4 output
32.941 32.941 32.941 V J5 and J6 output
Efficiency
η
VIN=VCC,Vadj=0V
94.34 94.78 94.62
％
Note 1
Note 1:Efficiency
＝｛ [(J1/J2
Iou t
﹡ J1/J2 Vout)+( (J3/J4
Iou t
﹡ J3/J4 Vout)+ (J5/J6
Iout
﹡ J5/J6 Vout) ﹞ /(IinH ﹡ Vin) ｝ ﹡ 100%,Tolerance ± 0.5 ％
Working spec.
Item Symbol
Conditions
MIN. TYP. MAX. Unit Remark
Working Frequency
Freq VIN=VCC,Vadj=0V 340 400 460 KHZ
PWM Frequency
Freq
VIN=VCC
180 200 220 HZ
Environment
Operation Temperature
-20 ~ 70
℃
Operation Humidity ﹪ Max.RH
Storage Temperature
-40 ~ 85
℃
Storage Humidity ﹪ Max.RH