Cyp1840 Built-in Clock 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/overcurrent 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

Pin Assignment

 

 

Electrical Characteristics
 

Parameter	Symbol	Test Conditions	Min	Typ	Max	Unit
Power Supply	VDD		3.0		3.6	V
Power Dissipation	Iop	VDD=3.3V		3		mA
Measuring range		4000:1 Input dynamic range
Active energy measurement accuracy (large signal)		35A~100mA Input@ 1mohm sampling resistor		0.2		%
Active energy measurement accuracy (small signal)		100mA~50mA Input@ 1mohm sampling resistor		0.4		%
Active energy measurement accuracy (tiny signal)		50mA~10mA Input@ 1mohm sampling resistor		0.6		%
RMS measurement accuracy(large signal)		35A~100mA Input@ 1mohm sampling resistor		0.2		%
RMS measurement accuracy(small signal)		100mA~50mA Input@ 1mohm sampling resistor		2		%
RMS measurement accuracy(tiny signal)		50mA~10mA Input@ 1mohm sampling resistor		6		%
Fast RMS response time	50Hz	Can be set to cycle/half cycle	10		40	mS
	60Hz		8.3		33	mS
Zero-crossing signal output delay				571		uS
Measurement error caused by phase angle between channels (capacitance)	PF08err	Phase advance 37 (PF=0.8)			0.5	%
Measurement error caused by phase angle between channels (sensibility)	PF05err	Phase delay 60 (PF=0.5)			0.5	%
AC power suppression (output frequency amplitude variation)	ACPSRR	IP/N=100mV			0.1	%
DC power suppression (output frequency amplitude variation)	DCPSRR	VP/N=100mV			0.1	%
Analog input level (current)		Differential current input (peak)			50	mV
Analog input level (voltage)		Differential voltage input (peak)			200	mV
Analog input impedance				370		kΩ
SEL pull-down resistor		SEL(pull-down)		56.9		kΩ
Analog input bandwidth		(-3dB)		3.5		kHz
Internal voltage reference	Vref			1.218		V
Logic input high-level		VDD=3.3V±5%	2.6			V
Logic input low-level		VDD=3.3V±5%			0.8	V
Logic output high-level		VDD=3.3V±5% IOH=5mA	VDD -0.5			V
Logic output low-level		VDD=3.3V±5% IOL=5mA			0.5	V

Note: Unless specified otherwise, Tamb = 25ºC
All voltage values take GND terminal potential as reference point.
Test conditions VDD=3.3V, Built-in crystal oscillator, electric energy is measured by CF output.