The SGM843 is a 12-bit high-precision I2C and SMBus compatible interface current, voltage, power monitor with alert function. It operates in a wide common-mode voltage range from -0.3V to 28V and a single 2.7V to 5.5V power supply.
The SGM843 has three operating modes: continuous, triggered and shutdown modes that can reduce quiescent current. Programmable averaging and conversion times allow for more flexibility to meet the timing requirements in a variety of applications. It monitors the bus voltage existing on the IN- pin continuously. Besides, it also integrates alert functions with configured priority and can be capable of triggering an alert in cases of over-current, under-current, over-voltage, under-voltage or over-power conditions.
Considering the low input bias current feature, the device is capable of applying a larger sensing resistor, so as to ensure the accuracy of current detection within micro-amp range.
The SGM843 is available in a Green WLCSP-0.75×1.5-8B package. It is specified over the operating temperature range of -40℃ to +85℃.
- 2.7V to 5.5V Supply Voltage Range
- High-side or Low-side Sensing
- Current, Voltage and Power Monitor
- Programmable Full Scale Range: 20mV/80mV
- -0.3V to 28V Input Common-Mode Range
- Current Monitoring Accuracy:
- 12-bit ADC Resolution
- 0.4% Gain Error (MAX)
- 100µV Offset (MAX)
- Low Input Bias Current: 20nA (MAX)
- Programmable Averaging and Conversion Times
- Programmable Alert outputs
- 1.2V, 1.8V, 3.3V, 5.0V Interface(I2C/SMBus)
- 3 Programmable Addresses
- Available in a Green WLCSP-0.75×1.5-8B Package
Battery Monitor and Balancer
Communication Equipment
Power Management
Servers
Test Equipment
