STMicroelectronics TSC102
TSC102 - High side current sense amplifier plus signal conditioning amplifier
The TSC102 measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.
The device’s wide input common-mode voltage range, low quiescent current and tiny TSSOP8 packaging enable use in a wide variety of applications (also available in SO8 package).
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.
The TSC102 is rugged against abnormal conditions on the input pins: Vp and Vm can withstand up to 60 V in case of voltage spikes, as little as -16 V in case of reversed battery, and up to 4 kV in case of electrostatic discharge.
In addition to the current sensing amplifier, the TSC102 offers a fully accessible amplifier for output signal conditioning. The device’s overall current consumption is lower than 420 μA.
Features
- Independent supply and input common-mode voltages
- Wide common-mode operating range: 2.8 to 30 V
- Wide common-mode surviving range: -16 to 60 V (reversed battery and load-dump conditions)
- Low current consumption: ICC max = 420 μA
- Output amplifier for tailor-made signal conditioning
- -40 °C to 125 °C operating temperature range
- 4Kv ESD protection
Applications
- Battery chargers
- Automotive current monitoring
- DC motor controls
- Notebook computers
- Photo-voltaic systems
- Precision current sources
- Uninterruptible power supplies
- High-end power supplies
STEVAL-ISQ010V1 - High-side current-sense amplifier demonstration board based on the TSC102
The TSC102 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. The device is housed in a tiny TSSOP8 package.
Input common-mode and power supply voltages are independent. The common-mode voltage can range from 2.8 V to 30 V during operation. Under absolute maximum rating conditions, the Vp and Vm pins can sustain as much as 60 V to handle events like load-dump conditions, and as low as -16 V to deal with reverse battery conditions.
The supply voltage can range from 3.5 V to 5.5 V, therefore the TSC102 can be supplied by the same voltage regulator used for digital circuits.
Current consumption is less than 450 μA over the temperature range, and low input bias current is less than 7 μA in standard conditions.
Features
- RoHS compliant
- Integrated fully-accessible operational amplifier for tailor-made signal conditioning
- Independent supply and input common-mode voltages
- Wide common-mode survival range: -16 V to 60 V (reverse battery and load-dump conditions)
- Wide common-mode operating range: 2.8 V to 30 V
- Internally fixed gain: 20 V/V
- Low current consumption: Icc max = 450 μA
silica content library/npi/2023/stmicroelectronics-tsc102
STMicroelectronics TSC102 | Avnet Silica
