TSC1641 Digital Power Monitor

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            TSC1641 Digital Power Monitor
                    STMicroelectronics' high precision current, voltage power, and temperature monitoring analog front-end
    

Image of STMicroelectronics TSC1641 Digital Power Monitor STMicroelectronics' TSC1641 is a high-precision current, voltage power, and temperature monitoring analog front end (AFE). It monitors current into a shunt resistor and load voltage up to 60 V in a synchronized way. The current measurement can be high-side, low-side, and bidirectional.

The device integrates high-precision 16-bit dual channel ADC with a programmable conversion time from 128 μs to 32.7 ms. The digital bus interface is flexible from I²C/SMbus 1 MHz data rate to MIPI I³C 12.5 MHz data rate. This allows connectivity to most of the recent STM32 products. The TSC1641 allows the assertion of several alerts on the voltage, current, power, and temperature. Thresholds can be set for each parameter in a specific register.

The TSC1641 comes in a plastic DFN10 package and can operate from -40°C to +125°C ambient temperature.

Features

16-bit resolution dual-channel sigma-delta ADC
2.7 V to 3.6 V power supply voltage
From 128 μs to 32.7 ms total conversion time
Bidirectional current, high-side, or low-side sensing
Load voltage sensing from 0 V to 60 V
Ultra-low input bias current: 20 pA typical at V_CM = 12 V
Ultra-low shutdown current: 50 nA typical
Shunt offset voltage: ±3 μV typical
Load offset voltage: ±2 mV typical
Shunt and load voltage gain error: 0.3% maximum

Internal die temperature monitoring
MIPI I³C up to 12.5 MHz
I²C bus interface up to 1 MHz
Default I²C address: 1000000(b) to 1000011(b)
SMBus alert compatible
Alert signals generated in case of over/undervoltage, over/undercurrent, overpower, or overtemperature
Extended temperature range: -40°C to +125°C
DFN10 3 mm² package