BL0937B
Every spec below is cited to the manufacturer datasheet. Pick your exact ordering code, compare the closest alternatives, then ask the assistant what it means for your design.
What the BL0937B family does
The BL0937B is a single-phase energy metering chip with an internal clock, designed for socket meters, power strips, and smart home control circuits. It features a 2500:1 input dynamic range with less than ±0.5% non-linear measurement error and handles a current measurement range of 4mA to 30A. The device operates on a single 3.3V supply with typical power consumption of 8mW, utilizing a built-in 1.1V reference voltage and internal oscillator. It provides high-precision RMS voltage and current measurements along with active power, current, and voltage effective values. The chip includes a patented anti-walking design to eliminate noise power when no current flows and a power voltage monitor that resets the system if voltage drops below 2.6V. Packaged in an SOP8 format, it outputs high-frequency pulses for metering or RMS values based on configuration.
BL0937B datasheet parameters
| Parameter | Min | Typ | Max | Conditions | Source |
|---|---|---|---|---|---|
| supply voltage range | 3 V | — | 3.6 V | Belling datasheet, p. 4 — 6 电参数 | |
| operating temperature | -40 °C | — | 85 °C | 5 极限范围 | Belling datasheet, p. 4 — 5 极限范围 |