STMicroelectronics TSC101
TSC101 - High side current sense amplifier
The TSC101 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The gain is internally fixed.
Wide input common-mode voltage range, low quiescent current, and tiny SOT23 packaging enable use in a wide variety of applications.
The input common-mode and power supply voltages are independent. The common-mode voltage can range from 2.8 to 30 V in operating conditions and up to 60 V in absolute maximum rating conditions.
The current consumption below 300 μA and the wide supply voltage range enable the power supply to be connected to either side of the current measurement shunt with minimal error..
Features
- Independent supply and input common-mode voltages
- Wide common-mode operating range: 2.8 to 30 V
- Wide common-mode surviving range: -0.3 to 60 V (load-dump)
- Wide supply voltage range: 4 to 24 V
- Low current consumption: ICCmax = 300 μA
- Internally fixed gain: 20 V/V, 50 V/V or 100 V/V
- Buffered output
Applications
- Automotive current monitoring
- Notebook computers
- DC motor controls
- Photovoltaic systems
- Battery chargers
- Precision current sources
STEVAL-ISQ007V1 - High-side current-sense amplifier demonstration board based on the TSC101
The TSC101 measures a very small voltage drop on a high-side shunt resistor, and, using an internally fixed gain, amplifies the difference into a ground-referenced output voltage; the amplification gain is internally fixed.
Input common-mode and power supply voltages are independent.
The common-mode voltage can range from 2.8 V to 30 V in operating conditions, and up to 60 V in absolute maximum ratings.
The supply voltage can range from 4 V to 24 V.
Current consumption of less than 300 μA over the temperature range and low input bias current (less than 8 μA in standard conditions, a few 100 nA if VCC isn't supplied) are particularly interesting to save power in the application.
Features
- Buffered output
- Internally fixed gain:20 V/V (TSC101A)50 V/V (TSC101B)100 V/V (TSC101C)
- Independent supply and input common-mode voltages
- Wide common-mode surviving range: -0.3 V to 60 V (load-dump)
- Wide common-mode operating range: 2.8 V to 30 V
- Low current consumption: ICCCC max is 300 μA
- Wide supply voltage range: 4 V to 24 V
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STMicroelectronics TSC101 | Avnet Silica
