SSP1839

Short Description:

SSP1839 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. SSP1839 integrates 3 high-precision sigma-delta ADC, it can measure two channel of current and one channel of voltage simultaneously. SSP1839 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. SSP1839 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. SSP1839 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.

Tags: Active component、 Anolog IC、 energy metering、 High-Precision Power Metering Circuit、 Power metering circuit

Product Detail

Features

3 high-precision sigma-delta ADC, used to measure two channel of currents and one channel of voltage
The range ofcurrent（10mA~35A）@1mohm
The range of Activeenergy（1w~7700w）@1mohm@220V
Measure RMS Voltage and Current, fast current RMS, Active Power, ActiveEnergy
The gain error is less than 1%, calibration-free when peripheral components meet certain
Two current channel support electric leakage/over-current monitoring function, the threshold and response time can beconfigured
Voltage zero-crossing logicoutput
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 temperaturemeasurement
SPI(≤900KHz) /UART(4800bps) ,UART supports multi-chip addresscommunication（SSOP20L）
On-chip power supply monitoring, IC reset when VDD is lower than7V(typical).
On-chip voltage reference of218V
On-chip 4MHz oscillatorcircuit
Power supply 3V, low power consumption 10mW(typical)
Package：SSOP20L/SOP16L

Parameter table

Absolute Maximum Ratings

Parameter	Symbol	Value	Unit
Power Voltage VDD	VDD	-0.3～+4	V
Analog Input Voltage to GND	IP1,IP2,VP	-4～+4	V
Digital Input Voltage to GND	A1～A4 UART_SEL RX/SDI	-0.3～VDD+0.3	V
Digital Output Voltage to GND	CF I_Leak TX/SDO	-0.3～VDD+0.3	V
Operating Temperature Range	T	-40～+85	℃
Storage Temperature Range	Tstg	-40～+85	℃

Note: Unless specified otherwise, Tamb= 25℃

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
Fast RMS response time	60Hz	Can be set to cycle/half cycle	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= 25℃

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.

Order Specification

Part No	Package	Manner of Packing	Devices per bag/reel
SSP1839-SOP16L	SOP16L	Reel	3000PCS
SSP1839-SSOP20L	SSOP20L	Reel	2500PCS

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Short Description:

Product Detail

Features

Parameter table

Absolute Maximum Ratings

Order Specification

Tell me what you need

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SSP1839

Product Catgories

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Short Description:

Product Detail

Features

Parameter table

Absolute Maximum Ratings

Order Specification

Tell me what you need

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