Cyp1840 Calibration Free Single Phase Energy Meter IC with Integrated Oscillator

• shape: Flat
• Conductive Type: Unipolar Integrated Circuit
• Integration: GSI
• Application: Specific Integrated Circuits
• Type: Digital IC
• Package: Tssop14
• Model NO.: CYP1840
• Manner of Packing: Reel
• Devices Per Bag/Reel: 3000PCS
• Ship by: DHL/FedEx/ UPS
• Lead Time: 7 Working Days After Receiving Payment
• Trademark: CY
• Origin: China
• HS Code: 8542399000
• Production Capacity: 200000PCS/Year

Product Description

General Description

CYP1840 is a built-in clock and calibration-free energy metering IC, suitable for single-phase multifunctional electricity meter, smart socket, smart home appliances, electric bicycle charging pile and other applications with better cost performance.

CYP1840 integrates 2 high-precision sigma-delta ADC to measure current and voltage simultaneously. Reference voltage, power management and other analog circuit modules, and processing active power, current and voltage RMS electrical parameters digital signal processing circuit.

CYP1840 can measure electric parameters such as current and voltage RMS, active power, active energy, fast current RMS (for leakage detection/over-current protection), and temperature detection, waveform output and so on. CYP1840 output data through the UART/SPI interface. It is available for the smart socket, smart appliances, single-phase multi-function power meter, electric bicycle charging pile and information requirement of data acquisition in electricity applications.

CYP1840 has a patented anti-creep design, which can be combined with reasonable external hardware design to ensure that the noise energy cannot be calculated in the energy pulse when there is no load.


Features

• • 2 high-precision sigma-delta ADC for current and voltage measuring
  • The range of current(10mA~35A)@1mohm
  • The range of Active energy(1w~7700w)@1mohm@220V
  • Measure RMS Voltage and Current, fast current RMS, Active Power, Active Energy
  • The gain error is less than 1%, calibration-free when peripheral components meet certain conditions.
  • The current channel support electric leakage/over-current monitoring function, the threshold and response time can be configured
  • Voltage zero-Crossing logic output
  • Built-in waveform register for load type analysis, Waveform data can be output for load type analysis
  • Built-in temperature sensor, Meet the requirements of the product itself, such as over-temperature monitoring, high current node preset temperature alarm, room temperature measurement
  • SPI(≤900KHz)/UART(4800bps)
  • On-chip power supply monitoring, IC reset when VDD is lower than 2.7V(typical).
  • On-chip voltage reference of 1.218V
  • On-chip 4MHz oscillator circuit
  • Power supply 3.3V, low power consumption 10mW (typical)
  • Package:TSSOP14

Applications    

• Electric instrument
• Intelligent socket, intelligent circuit breaker
• Intelligent electric energy acquisition terminal

Pin Assignment

Pin No.	Pin Name	Description
1	VDD	Power Supply (+3.3V).
2	VT	External temperature sensor(NTC) signal input.
3,4	IP1,IN1	Analog input of current channel, maximum differential voltage has a maximum input range of ±50mV(35mV RMS).
5,6	VP,VN	Analog input for voltage channel, this differential input has a maximum input range of ±100mV(70mV RMS).

 

7	GND	GND
8	ZX	Voltage channel zero-crossing output pin
9	CF	Energy pulse output, multiplex function refer to MODE register description
10	SEL	Interface select pin (0: UART       1: SPI), pull-down resistance inside, disconnect is low-level (UART), connected to VDD is high-level (SPI)
11	SCLK	SPI clock input. If using UART interface, this pin doesn ' t need be connected.
12	RX/SDI	Data input for SPI interface/Receive line for UART interface
13	TX/SDO	Data output for SPI interface/Transmit line for UART interface, this pin require external pull-up resistor.
14	VPP	Reserved, not connected.