STPM34TR Integrated Circuit Chip High Accuracy Single Phase Metering IC QFN-32

STPM34TR Integrated Circuit Chip High Accuracy Single Phase Metering IC QFN-32

Product Description Of STPM34TR
STPM34TR Single Phase Metering ICs are an ASSP family designed for high accuracy measurement of power and energies in power line systems using the Rogowski coil, current transformer, or shunt current sensors. These devices provide instantaneous voltage and current waveforms and calculate RMS values of voltage and currents, active, reactive, and apparent power and energies. The STPM34TR Mixed Signal ICs consist of an analog and a digital section. The analog section consists of up to two programmable gain low-noise low-offset amplifiers and up to four 2nd order 24-bit sigma-delta ADCs, two bandgap voltage references with independent temperature compensation, a low drop voltage regulator, and DC buffers. The digital section consists of digital filtering stage, a hardwired DSP, DFE to the input and a serial communication interface (UART or SPI). These are fully configurable and allows a fast digital system calibration in a single point over the entire current dynamic range.

Specifications Of STPM34TR

Features Of STPM34TR
Active power accuracy:
< 0.1% error over 5000 : 1 dynamic range
< 0.5% error over 10000 : 1 dynamic range
Exceeds 50-60 Hz EN 50470-x, IEC 62053-2x, ANSI12.2x standard requirements for AC watt meters
Reactive power accuracy:
< 0.1% error over 2000 : 1 dynamic range
Dual mode apparent energy calculation
Instantaneous and averaged power
RMS and instantaneous voltage and current
Under and overvoltage detection (sag and swell) and monitoring
Overcurrent detection and monitoring
UART and SPI serial interface with programmable CRC polynomial verification
Programmable LED and interrupt outputs
Four independent 24-bit 2nd order sigma-delta ADCs
Two programmable gain chopper stabilized low-noise and low-offset amplifiers
Bandwidth 3.6 kHz at -3 dB
Vcc supply range 3.3 V ± 10%
Supply current Icc 4.3 mA (STPM32)
Input clock frequency 16 MHz, Xtal or external source
Twin precision voltage reference: 1.18 V with independent programmable TC, 30 ppm/°C typ.
Internal low drop regulator at 3 V (typ.)
QFN packages
Operating temperature from -40 °C to +105 °C

Applications Of STPM34TR
Industrial
Energy generation and distribution
Home, building, and city automation
Metering

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FAQ
Q. Are your products original?
A: Yes, all products are original, new original import is our purpose.
Q:Which Certificates do you have?
A:We are ISO 9001:2015 Certified Company and member of ERAI.
Q:Can you support small quantity order or sample?Is the sample free?
A:Yes,we support sample order and small order.Sample cost is different according to your order or project.
Q:How to ship my order? Is it safe?
A:We use express to ship,such as DHL,Fedex,UPS,TNT,EMS.We can also use your suggested forwarder.Products will be in good packing and ensure the safety and we are responsible to product damage to your order.
Q:What about the lead time?
A:We can ship stock parts within 5 working days.If without stock,we will confirm lead time for you based on your order quantity.