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參數(shù)資料
| 型號： | DN8667NS |
| 廠商： | PANASONIC CORP |
| 元件分類： | 顯示驅(qū)動器 |
| 英文描述： | 8-Bit Shift Register Latch Constant Current Driver IC |
| 中文描述： | LED DISPLAY DRIVER, PDSO20 |
| 封裝： | 0.300 INCH, PLASTIC, SOP-20 |
| 文件頁數(shù)： | 3/5頁 |
| 文件大?。?/td> | 49K |
| 代理商： | DN8667NS |
3
Others
DN8667NS
Symbol
DGND
SIN
CLK
Description
I
Pin Descriptions
* Calculation example
V
CC
= 5V
R
RC
= 910
STB
Qn
Digital ground
It is the serial data input terminal for shift register.
The value of shift register shifts at the rising edge of clock input.
Setting the STB input to "H" forwards the data of shift register to the latch.
When the STB input is set to "L" , even if the value of shift register changes,
the value of latch is not changed.
It outputs signals by using the polarity opposite to that of data taken into the
latch. For example, when the value of serial input is "H" , the output becomes
"L" level and the output is turned on. The output takes open collector form of
NPN transistor.
Pin No.
Pin name
1
2
3
4
5
Digital ground
Serial data input
Clock input
Strobe input
Driver output
7,8
10,11
13,14
16
6
9,12
15
20
×
5
910 + 90
I
O
(Qn)
≈
I
O
(Qn)
≈
100mA
** Calculation example
V
CC
= 5V
I
RC
= 0.0025A
1 5
2 0.0025
R
RC
≈
R
RC
≈
910 (
)
–180
V
CC
(V)
2
×
R
RC
(
) +180
I
≈
(A)
V
CC
(V)
I
RC
(A)
or R
RC
≈
(
)
Supply terminal
–180
20
×
V
CC
(V)
R
RC
(
) + 90
1
2
I
O
(Qn)
≈
(A)
Output ground
When the EN input is set to "H" , all the outputs are turned off, independent of
condition of shift register or latch driver.
It is the terminal which performs the serial-output of data inputted from the SIN.
It connects the external resistor between RC and GND and sets the current of
output block.
* Output current calculation : ** RC terminal setting calculation :
PGND
Output ground
17
EN
Enabling input
18
SOUT
Serial data output
19
RC
Constant current setting input
20
V
CC
V
CC
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