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STPM11 bảng dữ liệu(PDF) 9 Page - STMicroelectronics

tên linh kiện STPM11
Giải thích chi tiết về linh kiện  Single phase energy metering IC with pulsed output and digital calibration
PDF  43 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STPM11 bảng dữ liệu(HTML) 9 Page - STMicroelectronics

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STPM11/12/13/14
Electrical characteristics
9/43
Crystal oscillator (STPM12/14)
II
Input current on CLKIN
±1
µA
RP
External resistor
1
4
M
Ω
CP
External capacitors
22
pF
fCLK
Nominal output frequency
4
4.194
MHz
8
8.192
RC Oscillator (STPM11/13)
ICLKIN
Settling current
fCLK= 4 MHz
40
60
µA
RSET
Settling resistor
12
k
Ω
tJIT
Frequency jitter
1
ns
On chip reference voltage
VREF
Reference voltage
1.23
V
Reference accuracy
±1
%
TC
Temperature coefficient
After calibration
30
50
ppm/°
C
Configuration interface timing
FSCLKw Data write speed
100
KHz
tDS
Data setup time
20
ns
tDH
Data hold time
0
ns
tSYN
SYN-NP active width
2/fCLK
s
Table 4.
Electrical characteristics
(VCC =5V, TA= 25°C, 2.2µF between VDDA and VSS, 2.2µF between VDDD and VSS, 2.2µF
between VCC and VSS unless otherwise specified)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Table 5.
Typical external components
Function
Component
Parameter
Value
Tolerance
Unit
Line voltage
interface
Resistor divider
R to R ratio VRMS=230V
1650
±1%
V/V
R to R ratio VRMS=110V
830
±1%
Line current
interface
Current shunt
Current to voltage conversion ratio
0.2
±5%
mV/A
Current transformer
30
±12%
Rogowsky coil
3
±12%



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