STPM34TR

STPM32, STPM33, STPM34 ASSP for metering applications with up to four independent 24-bit order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA 2nd Datasheet - production data  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 QFN24L 4x4x1 QFN32L 5x5x1  Operating temperature from 40 °C to +...
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STPM32, STPM33, STPM34 ASSP for metering applications with up to four independent 24-bit order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA 2nd Datasheet - production data  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 QFN24L 4x4x1 QFN32L 5x5x1  Operating temperature from 40 °C to +85 °C Description Features  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 The STPM3x is 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. The STPM3x provides instantaneous voltage and current waveforms and calculates RMS values of voltage and currents, active, reactive and apparent power and energies. The STPM3x is a mixed signal IC family consisting 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 sigmadelta 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). The STPM3x is fully configurable and allows a fast digital system calibration in a single point over the entire current dynamic range. Table 1. Device summary Order code Package Packing STPM34TR QFN32L 5x5x1 Tape and reel  Bandwidth 3.6 kHz at -3 dB STPM33TR QFN32L 5x5x1 Tape and reel  Vcc supply range 3.3 V ± 10%  Supply current Icc 4.3 mA (STPM32) STPM32TR QFN24L 4x4x1 Tape and reel  Two programmable gain chopper stabilized low-noise and low-offset amplifiers  Input clock frequency 16 MHz, Xtal or external source January 2018 This is information on a product in full production. DocID026142 Rev 7 1/120 www.st.com PDF
Документация на STPM33TR 

ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA

Дата модификации: 15.01.2018

Размер: 3.62 Мб

120 стр.

STPM32, STPM33, STPM34 ASSP for metering applications with up to four independent 24-bit 2 order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA nd Datasheet - production data • Twin precision voltage reference: 1.18 V with independent programmable TC, 10 ppm/°C typ. • Internal low drop regulator @ 3 V (typ.) • QFN packages QFN24L 4x4x1 QFN32L 5x5x1 • Operating temperature -40 °C~+85 °C Description Features • 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 The STPM3x is 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. The STPM3x provides instantaneous voltage and current waveforms and calculates RMS values of voltage and currents, active, reactive and apparent power and energies. The STPM3x is a mixed signal IC family consisting 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 sigmadelta 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). The STPM3x is fully configurable and allows a fast digital system calibration in a single point over the entire current dynamic range. • Four independent 24-bit 2nd order sigma-delta ADCs Table 1. Device summary Order codes Package Packaging STPM34TR QFN32L 5x5x1 Tape and reel • Bandwidth 3.6 kHz @ -3 dB STPM33TR QFN32L 5x5x1 Tape and reel • Vcc supply range 3.3 V±10% STPM32TR QFN24L 4x4x1 Tape and reel • Two programmable gain chopper stabilized low-noise and low-offset amplifiers • Supply current Icc 4 mA (STPM32) • Input clock frequency 16 MHz, Xtal or external source October 2014 This is information on a product in full production. DocID026142 Rev 2 1/119 www.st.com PDF
Документация на серию STPM32 

ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA

Дата модификации: 16.10.2014

Размер: 3.51 Мб

119 стр.

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