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CSE7759B Datasheet(PDF) 7 Page - Core Technology (Shenzhen) Co., Ltd.

Part No. CSE7759B
Description  Calibration-free Electric Energy Measuring Chip
Download  25 Pages
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Maker  CHIPSEA [Core Technology (Shenzhen) Co., Ltd.]
Homepage  http://www.chipsea.com/
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本资料为芯海科技专有财产,非经许可,不得复制、翻印或转变其他形式使用。
This document is exclusive property of CHIPSEA and shall not be reproduced or copied or transformed to any other format
without prior permission of CHIPSEA
聚点滴之芯.成浩瀚之海
7/25
Input capacitance
IC
-
6.4
-
pF
Equivalent input impedance:
Current channel
Voltage channel
EII
500
6
-
kΩ
MΩ
Equivalent input noise:
Current channel
Voltage channel
NI
-
-
-
-
2
20
µVrms
µVrms
Power supply
Current consumption
(VDD = 5 V)
I
4
-
-
mA
mA
Power consumption
(VDD = 5 V)
PC
-
20
mW
Low voltage threshold for power
failure detection
PMLO
-
4
-
V
High voltage threshold for power
failure detection
PMHI
-
4.3
-
V
Built-in reference voltage
Reference voltage
VREF
2.3
2.43
2.55
V
Temperature excursion
TCVREF
-
25
-
ppm/℃
Measurement accuracy (measuring relative error and absolute error of the parameter)
Parameters
Symbol
Min.
Value
Typical
Value
Max.
Value
Unit
Current: 1mR sampling resistance (ideal value, without resistance error), full
range of the current is 30.9A
30.9A~250mA (relative error)
-2
1
2
%
249mA~60mA (absolute error)
10
15
mA
Min. measured value of current (to
be determined by overall noise)
60
mA




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