STPMS1BPQR - Dual-Channel Smart Sensor | STMicroelectronics
MPN: STPMS1BPQR ✓ AktifSTPMS1BPQR Genel Bakış
A smart sensor interface IC is an application-specific signal-processing device that converts a physical sensor signal into a digital representation. The STPMS1BPQR belongs to the sensor and detector interface hierarchy, combining analog input conditioning, sigma-delta modulation, and digital output signaling in one package. This integration is intended for effective measurement in power-line systems, particularly where current-derived signals require conditioning before digital processing.
Each channel uses a 1-bit, first-order sigma-delta modulator operating at 2 MHz. The device also incorporates an embedded PGA, allowing signal gain to be selected for the applied sensor signal. These features make the STPMS1BPQR suitable for compact current-measurement front ends rather than general-purpose analog-to-digital conversion. Its analog input and digital output architecture keeps sensor conditioning close to the measurement source.
The 16-QFN package measures 3 x 3 mm and is supplied in tape-and-reel packaging according to the verified distributor data. The exposed-pad package designation is identified in the product listings. Package dimensions and exposed-pad dimensions were not included in the supplied source data, so those physical values should be confirmed against the manufacturer datasheet before a PCB footprint is released.
Typical applications include electronic power meters, energy-metering equipment, industrial current monitoring, and protection systems using Rogowski coils or current transformers. The STPMS1BPQR can also serve as the analog front end for shunt-based measurements when its input and gain requirements match the selected sensor. Digital downstream processing requires an appropriate clock and companion calculation or control circuitry.
The most important design consideration is signal conditioning. The selected gain must accommodate the sensor output without overloading the analog inputs, and the 2 MHz modulation rate requires a compatible digital clock and filtering strategy. PCB layout should keep sensitive analog inputs away from digital return currents, while the exposed pad requires adequate thermal and electrical copper treatment.
This page consolidates the verified distributor specifications, package information, sourcing links, and engineering guidance for the STPMS1BPQR. It also explicitly separates documented facts from unavailable pricing, pin mapping, and substitution data, allowing engineers to make sourcing and design decisions without relying on unverified assumptions.
Drop-in alternatifler için STPMS1BPQR — aynı paket, pin-başına uyumlu. PCB yeniden montajı gerektiren farklı paket bileşenleri dışlanmıştır.
Bu ürüne yer değiştirme seçenekleri mevcut değil.
Alternatifleri Talep EdinSTPMS1BPQR Maksimum Değerlendirmeler & Elektriksel Özellikler
| Device Type | Smart sensor IC |
| Architecture | Dual-channel first-order sigma-delta modulator |
| Channel Count | 2 channels |
| Modulator Resolution | 1 bit per channel |
| Modulator Frequency | 2 MHz |
| Input Type | Analog input |
| Çıkış Türü | Digital output |
| Embedded Amplifier | Programmable-gain amplifier (PGA) |
| Supply Voltage Range | 3.2 V to 5.5 V |
| Maximum Stated Supply Voltage | 5.5 V |
| Paket | 16-QFN, 3 x 3 mm |
| Package Type | QFN with exposed pad |
| Montaj Türü | Surface mount |
| Packaging | Tape and reel |
| Yaşam Döngüsü Durumu | Active |
| RoHS Durumu | RoHS3 compliant |
| Lead-Free Status | Compliant |
| Clock Reference | 1.024 MHz or 2.048 MHz nominal, per the supplied datasheet snippet |
STPMS1BPQR qfn with exposed pad Pin Yapısı Kılavuzu
STPMS1BPQR (qfn with exposed pad paket) için pin yapısı. Pin numaralandırma, işlevleri ve bağlantı şemaları üretici veri kitapçığında tanımlanmıştır. Doğru ayak ve soldurma kılavuzları için onu referans alın.
Ayrıntılı pin çıkış verisi mevcut değil: STPMS1BPQR.
Aşağıdaki veri sayfası tam pin konfigürasyonu için.
Tipik Uygulamalar
STPMS1BPQR için uygundur 6 uygulamas: Smart Energy Metering, Rogowski Coil Current Sensing, Current Transformer Energy Measurement, Shunt-Based Power Monitoring, Industrial Load Monitoring, Power Protection Equipment.
Smart Energy Metering
The STPMS1BPQR fits energy-metering front ends that use a Rogowski coil or current transformer to measure line current. Its two analog input channels receive conditioned sensor signals, while the embedded PGA and two 1-bit first-order sigma-delta modulators operating at 2 MHz convert those signals into digital data for downstream processing. The 3.2 V to 5.5 V supply range supports conventional low-voltage metering electronics, and the 16-QFN 3 x 3 mm package limits board area. The design must verify the selected sensor range, configure the available PGA gain, and implement suitable digital filtering and calibration. According to the verified product description, the device was created specifically for effective measurement in power-line systems.
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Rogowski Coil Current Sensing
The STPMS1BPQR is suitable for conditioning current-derived analog signals from a Rogowski coil because it combines a dual-channel analog front end, embedded PGA, and 2 MHz first-order sigma-delta modulation in one compact IC. Both channels use a 1-bit modulator architecture, allowing a system to process two related current-sensing signals when the circuit design requires them. The 16-QFN package measures 3 x 3 mm, helping reduce the footprint near a Rogowski-coil output. However, the selected coil ratio, gain setting, analog input range, and digital decimation filter must be confirmed from the manufacturer datasheet. The verified data specifically identifies Rogowski-coil measurement as an intended use.
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Current Transformer Energy Measurement
The STPMS1BPQR supports compact current-transformer energy-measurement channels by accepting analog sensor outputs and converting them through two 1-bit, 2 MHz first-order sigma-delta modulators. The embedded PGA provides the adjustable analog gain stage required to align the transformed current signal with the modulator input, while digital outputs support downstream calculation. Its 3.2 V to 5.5 V operating range and surface-mount 16-QFN package are appropriate for meter electronics operating from regulated low-voltage supplies. Engineers must still validate transformer ratio, saturation behavior, gain range, channel synchronization, and the required output filtering. The device's verified smart-sensor positioning directly matches this power-line measurement use case.
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Shunt-Based Power Monitoring
The STPMS1BPQR can serve as the analog measurement stage for shunt-based power monitoring when the shunt voltage remains within the documented input range. Its embedded PGA helps scale the low-level analog signal before two 1-bit first-order sigma-delta modulators digitize it at 2 MHz. This architecture is relevant to compact monitors that need accurate sensing without a general-purpose ADC and associated external conditioning. The 16-QFN 3 x 3 mm package reduces board-space requirements near the shunt amplifier. Designers must account for Kelvin connections, shunt impedance, amplifier offset, PGA gain, clock timing, and digital filtering. The verified device description identifies the shunt principle as one of its intended measurement methods.
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Industrial Load Monitoring
The STPMS1BPQR is appropriate for industrial load-monitoring modules that measure current and require the captured data to be processed electronically. Two analog input channels, a programmable-gain amplifier, and dual 2 MHz first-order sigma-delta modulators provide an integrated path between the current sensor and digital system. The device can support two related measurement channels while avoiding the need for separate 1-bit modulation blocks. Its 3.2 V to 5.5 V supply range and 16-QFN package suit compact industrial electronics, although the final design must meet the application's environmental and isolation requirements. The key engineering checks are sensor bandwidth, gain selection, clock integrity, filtering latency, and thermal performance around the exposed pad.
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Power Protection Equipment
The STPMS1BPQR can support power-protection equipment that derives an analog current measurement and needs a compact conversion interface before protection logic evaluates the signal. Its two 1-bit first-order sigma-delta channels run at 2 MHz, and the embedded PGA conditions the measurement before digital processing. The 3.2 V to 5.5 V operating range allows use with regulated control electronics, while the 16-QFN 3 x 3 mm package supports dense board layouts. The verified data describes the STPMS1 as an ASSP intended for effective power-line measurement using Rogowski coils, current transformers, or shunts. A protection design must separately validate latency, fault thresholds, sensor behavior, clock integrity, and any functional-safety requirements because those details are not specified in the supplied sources.
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Önerilen Ürünler Özeti
Mühendislik referans verileri: STPMS1BPQR — karşılaştırma, tasarım rehberi ve uyumluluk bilgileri.
Seçim Kılavuzu
Alternatiflerle Karşılaştırma
| Parametre | Bu Ürün |
|---|---|
| Package | 16-QFN, 3 x 3 mm |
| Brand | STMicroelectronics |
| Device Type | Smart sensor IC |
| Channel Count | 2 channels |
| Modulator Resolution | 1 bit per channel |
| Modulator Frequency | 2 MHz |
| Supply Voltage Range | 3.2 V to 5.5 V |
| Input Type | Analog input |
| Output Type | Digital output |
| Embedded Amplifier | Programmable-gain amplifier |
| Packaging | Tape and reel |
| RoHS Status | RoHS3 compliant |
Ana Farklılayıcılar
- Integrated dual-channel modulation and analog gain (karşılaştırma:Generic sigma-delta ADC)
- Purpose-built for power-line current measurement (karşılaştırma:General-purpose analog interface IC)
- Compact surface-mount implementation (karşılaştırma:Larger-package discrete signal chain)
- Two independent measurement channels (karşılaştırma:Single-channel sensor interface)
Tasarım Notları
Route the analog sensor inputs as short, guarded traces and keep them away from clock and digital-output switching paths. Place the device's external components close to their associated pins, and provide a low-impedance ground path beneath and around the QFN. Because the verified data does not identify the pin map, the exact input, ground, clock, and supply connections must be taken directly from the manufacturer pin diagram before layout release.
The 16-QFN uses an exposed pad, so the PCB footprint must include the correct thermal-via pattern and preserve solder-paste behavior for the pad. Use the manufacturer land pattern rather than deriving a generic QFN-16 footprint from body size alone. Confirm pad dimensions, pin pitch, pin-one orientation, and paste-aperture recommendations against the datasheet because these details were not present in the supplied verified data.
Treat the 2 MHz modulator clock as a timing-critical signal. Route it away from the analog inputs, provide a short ground reference, and verify that the downstream digital system observes the required timing relationship. The supplied datasheet snippet mentions clocks from the STPMC1 at 1.024 MHz or 2.048 MHz nominal, but the complete supported clock range, polarity, and timing limits were not included and must be confirmed in the manufacturer datasheet.
Do not treat the 1-bit output as a conventional high-resolution ADC result. The two channels are first-order sigma-delta modulators, so useful measurement accuracy depends on the PGA configuration, clock, digital decimation or filtering, calibration, and sensor characteristics. Verify input headroom and available gain before connecting a Rogowski coil, current transformer, or shunt amplifier, and do not assume a drop-in replacement exists without a complete pin and functional comparison.
Uyumluluk Bilgisi
The verified distributor listing identifies STPMS1BPQR as RoHS3 compliant and lead-free compliant. REACH, halogen-free, conflict-minerals, and automotive qualification information were not supplied. AEC-Q100 is marked not applicable because this is an industrial smart sensor interface IC and no automotive qualification was stated.
