BL0939
3V~3.6V 3mA SOP-16 Energy Metering
Built-in clock calibration-free metering chip
- Manufacturer
- BL
- Manufacturer part #
- BL0939
- Store part #
- C2836697
- Package / case
- SOP-16
- Category
- Energy Metering
- Packaging
- Tape & Reel (TR)
Every Order Guarantee
100% Authentic · 30-Day Return or Replacement · policy
3,290 in stock
#C2836697
Stock & price checked 5 days ago
| Quantity | Unit price | Pack price |
|---|---|---|
| 1+ | ₹137.04 | ₹137.04 |
| 10+ | ₹113.62 | ₹1,136.20 |
| 30+ | ₹101.91 | ₹3,057.30 |
| 100+ | ₹90.20 | ₹9,020.00 |
| 500+ | ₹80.66 | ₹40,330.00 |
| 1,000+ | ₹77.20 | ₹77,200.00 |
1 × ₹137.04
₹137.04
excl. GST
₹161.71 incl. 18% GST
- Dispatch in 7–10 working days
- GST invoice with every order
- Standard pack: 2,500 per reel
BL0939
₹137.04 for 1 + GST
Specifications
- Clock Frequency
- 4MHz
- Tolerance
- 0.2%
- Operating Temperature
- -40℃~+105℃
- Voltage Reference Value
- 1.218V
- Voltage - Supply
- 3V~3.6V
- Dynamic Range
- 4000:1
- Function
- Programmable gain;Pulse output;Built-in reference source;Built-in digital filter;Energy accumulation engine;Fault detection;Built-in temperature sensor;Digital calibration and compensation
- Number of Channels
- 3
- Interface
- SPI;UART
- Meter Type
- Single-Phase Energy Metering IC
- Current - Supply
- 3mA
Packaging & compliance
- RoHS
- RoHS
- Lifecycle
- Active
- Packaging
- Tape & Reel (TR)
- Standard pack
- 2,500 / Reel
- Sold per
- Piece
- Minimum order
- 1
- Unit weight
- 0.323 g
Overview
BL0939 is a built-in clock, calibration-free energy metering IC suitable for single-phase multi-function energy meters, smart sockets, smart home appliances, e-bike charging stations, and other applications, offering high cost-effectiveness. BL0939 integrates 3 high-precision Sigma-Delta ADCs, capable of simultaneously measuring 2 current channels and 1 voltage channel. BL0939 can measure RMS current, RMS voltage, active power, active energy, and other parameters. It supports fast RMS current output (for leakage monitoring or overcurrent protection), temperature detection, waveform output, and other functions. Data is output via UART/SPI interface, fully meeting the requirements of smart sockets, smart home appliances, single-phase multi-function energy meters, e-bike charging stations, and large-scale electricity data collection applications. BL0939 features a patented anti-creep design that, combined with appropriate external hardware design, ensures noise power is not counted into energy pulses when no current is present.
Applications
- Single-phase multi-function energy meter
- Smart socket
- Smart home appliance
- Electric bicycle charging station
- Large-scale power consumption data acquisition
Key features
- Three independent Sigma-Delta ADCs for measuring two current channels and one voltage channel
- RMS current range (10mA~35A) @1mohm
- Active energy (1W~7700W) @1mohm @220V
- Outputs: RMS current, RMS voltage, fast RMS current, active power, current/voltage waveform phase angle
- Batch factory gain error <1%; calibration-free under specified peripheral component conditions
- Both current channels feature leakage/overcurrent monitoring with configurable threshold and response time
- Voltage zero-crossing signal output
- Built-in waveform registers with waveform data output for load type analysis
- Integrated temperature sensor for on-chip over-temperature monitoring, high-current node preset temperature alarm, and ambient temperature measurement
- Integrated SPI (max rate 900KHz) / UART (4800bps) communication; UART supports multi-chip addressed communication (SSOP20L package)
- Internal power loss detection; chip enters reset state when supply drops below 2.7V
- Built-in 1.218V reference voltage source
- Built-in oscillator circuit, clock ~4MHz
- Single supply voltage 3.3V, low power consumption 10mW (typical)
- SSOP20L / SOP16L package
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