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LIMCHIP CO., LIMITED
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RFQ ListingPower Management ICs
BL0942 is a Shanghai Belling calibration-free single-phase energy metering IC with two sigma-delta ADCs, on-chip reference and oscillator. It measures current, voltage RMS, active power and energy with UART 4800-38400 bps or SPI up to 900 kHz output, suited to smart sockets, smart appliances and single-phase meters.
ManufacturerShanghai Belling
PackageSSOP-10 (150 mil wide body)
SeriesBL0942
Power IC Specifications
| Parameter | Value / Specification |
|---|---|
| Function / Topology | Calibration-free single-phase energy metering AFE with two Sigma-Delta ADCs (one current, one voltage) |
| Supply Voltage | 3.0 V to 3.6 V single supply, about 10 mW typical power consumption |
| Output Voltage / Current | Active-energy pulse (CF) output plus UART/SPI data output; current channel up to 30 mV rms input |
| Measurement Range | Current RMS 10 mA to 30 A @ 1 mOhm shunt; active energy 1 W to 6600 W @ 1 mOhm @ 220 V |
| Accuracy / Reference | Batch factory gain error under 1% for calibration-free peripheral designs; 1.218 V on-chip reference |
| Interface Rate | SPI up to 900 kHz; UART 4800 to 38400 bps (TSSOP-14L variant cascades up to 4 ICs) |
| Monitoring | Programmable overcurrent monitoring, voltage/current zero-crossing output, power-down reset below 2.7 V |
| Temperature Grade | -40 °C to +85 °C |
| Package / Case | SSOP-10 (150 mil wide body) |
Power Features & Applications
- Calibration-free metering with batch gain error under 1%
- Two independent Sigma-Delta ADCs for current and voltage channels
- Measures RMS current/voltage, fast current RMS, active power and energy
- Patented anti-creep design keeps noise power out of energy pulses
- SPI up to 900 kHz or UART 4800-38400 bps communication
- Built-in 1.218 V reference and about 4 MHz on-chip oscillator
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Frequently Asked Questions
Is BL0942 available from LimChip?
LimChip can confirm current availability, price, quantity, date code and lead time for BL0942 by RFQ.
What should buyers check before ordering BL0942?
Buyers should check voltage range, current rating, package, protection features and date code for BL0942, together with live stock and traceable supply.
How do I request a quote for BL0942?
Use the RFQ button and include required quantity, target date code, package/case requirement, delivery country, company name and contact details.