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CSE7759B Datasheet(PDF) 3 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
3/25
REVISION HISTORY................................................................................................................................................2
1
FUNCTIONAL DESCRIPTION OF THE CHIP ......................................................................................................4
1.1
MAIN CHARACTERISTIC FUNCTION OF THE CHIP ..................................................................................................... 4
1.2
PIN DESCRIPTION OF THE CHIP............................................................................................................................ 4
2
CHARACTERISTIC DESCRIPTION OF THE CHIP ................................................................................................6
2.1
ABSOLUTE MAXIMUM RATINGS .......................................................................................................................... 6
2.2
RECOMMENDED OPERATING CONDITIONS ............................................................................................................ 6
2.3
ANALOG CHARACTERISTICS ................................................................................................................................ 6
2.4
DIGITAL CHARACTERISTICS ................................................................................................................................. 8
2.5
SWITCHING CHARACTERISTICS............................................................................................................................. 9
3
APPLICATION OF THE CHIP.......................................................................................................................... 10
3.1
TYPICAL APPLICATION OF CSE7759B ................................................................................................................ 10
3.2
SIGNAL FREQUENCY OF ACTIVE POWER ������������ ...................................................................................................... 11
3.3
MEASURING RANGE ....................................................................................................................................... 12
3.4
SERIAL PORT PROTOCOL.................................................................................................................................. 13
3.5
CHIP RESET ................................................................................................................................................... 17
3.6
CALIBRATION MODE....................................................................................................................................... 18
3.6.1
Calibration Address Selection............................................................................................................ 18
3.6.2
Delivery Calibration Parameters as Well as Current, Voltage and Power Formula of the Chip ........ 20
3.7
ELECTRIC QUANTITY CALCULATION .................................................................................................................... 20
3.7.1
Frequency of CF................................................................................................................................. 20
3.7.2
Current Example of Electric Quantity Calculation ............................................................................. 21
3.8
VOLTAGE
, CURRENT, ACTIVE POWER CALCULATION REFERENCE FLOW CHART .............................................................. 22
3.8.1
voltage operation reference flow chart ............................................................................................ 22
3.8.2
current operation reference flow chart............................................................................................. 23
3.8.3
Active power operation reference flow chart ................................................................................... 24
3.9
BOOT THRESHOLD AND SHUNT RUNNING PREVENTION OF THE CHIP ........................................................................ 24
3.10
BUILT-IN OSCILLATOR ..................................................................................................................................... 24
3.11
BUILT-IN REFERENCE SOURCE ........................................................................................................................... 24
4
PACKAGING OF CSE7759B ........................................................................................................................... 25




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