TSC1641IQT [STMicroelectronics]

The 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.

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 regarding 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.

• 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
• Shunt and load voltage gain error: 0.5% 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 x 3 mm² package