參數(shù)資料
型號: DS1231SN-50
廠商: DALLAS SEMICONDUCTOR
元件分類: 電源管理
英文描述: 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16
封裝: 0.300 INCH, SOIC-16
文件頁數(shù): 6/9頁
文件大小: 70K
代理商: DS1231SN-50
DS1231/S
022698 6/9
APPLICATION WITH MODE PIN GROUNDED Figure 6
IN
MODE
TOL
GND
VCC
NMI
RST
TO
P
DS1231
+5VDC
VOLTAGE SENSE POINT
EXAMPLE:
CTR = 0.2 IC = 30
A IF = 150 A
VOLTAGE SENSE POINT = 105 AND
VZ = 100 VOLTS
IC
R1
IF
-5% VCC THRESHOLD
VOLTAGE SENSE POINT (TRIP VALUE)
+ VZ ) IC
CTR
XR1
CTR
+ IC
IF
CTR
+ CURRENT TRANSFER RATIO
VZ
+ ZENNER VOLTAGE
THEN 105
+ 100 ) 30
0.2
xR1
R1
+ 33K
NOTE: RST requires a pull–up resister.
AC VOLTAGE MONITOR WITH OPTO-ISOLATION Figure 7
IN
MODE
TOL
GND
VCC
NMI
RST
-5% VCC THRESHOLD
TO
P
DS1231
+5VDC
AC LINE
INPUT
NOTE: RST requires a pull–up resister.
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