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CSE7759B Datasheet(PDF) 4 Page - Core Technology (Shenzhen) Co., Ltd.

Part No. CSE7759B
Description  Calibration-free Electric Energy Measuring Chip
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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
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1
Functional Description of the Chip
CSE7759B is a single-phase multi-function measuring chip, provides high-frequency pulse
CF for measuring electric quantity and may read relevant parameters of current, voltage and
power (such as coefficient, cycle) directly through UART; baud rate of serial port is 4800bps
(± 2%) 8-bit data with 1 even parity check and 1 stop bit. This chip is packaged in SOP8.
1.1 Main Characteristic Function of the Chip
1.
The cumulative error of the charge is ±2%.
2.
For current RMS, voltage RMS and power error range, see section 2.3
3.
Baud rate of UART communication protocol of serial port is 4800bps.
4.
Built-in power supply monitoring circuit; the chip will be enter reset state when power
supply voltage is lower to 4V.
5.
Built-in 2.43V voltage reference source.
6.
5V single power supply; operating current is smaller than 5mA.
7.
Main application area: Occasions needing to meter voltage, current and power, such as
single-phase multifunction watt-hour meter, measuring socket and data display
instrument etc.
1.2 Pin Description of the Chip
CSE7759B is packaged in SOP8.




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