Overview
The TSC102IDT, produced by STMicroelectronics, is a high-side current sense amplifier that also includes a signal conditioning amplifier. This device is designed to measure small differential voltages on a high-side shunt resistor and translate them into a ground-referenced output voltage. It is particularly useful in applications where high-side current sensing is required at voltages greater than the supply voltage.
The TSC102IDT features independent supply and input common-mode voltages, allowing for a wide common-mode operating range of 2.8 to 30 V. It is also robust against abnormal conditions, including reversed battery and load-dump scenarios, and offers low current consumption and high ESD protection.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Common-Mode Voltage Range | 2.8 to 30 | V |
| Supply Voltage Range | 3.5 to 5.5 | V |
| Operating Temperature Range | -40 to 125 | °C |
| Total Supply Current (ICC) | 240 to 420 | µA |
| Input Offset Voltage (Vos) | ±1.5 to ±2.3 | mV |
| Gain (Av) | 20 | V/V |
| ESD Protection | 4 kV | |
| Thermal Resistance (TSSOP8) | 120 | °C/W |
Key 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.
- Low current consumption: ICC max = 420 µA.
- Output amplifier for tailor-made signal conditioning.
- Operating temperature range: -40 °C to 125 °C.
- 4 kV ESD protection.
- Tiny TSSOP8 and SO8 packaging.
Applications
- Battery chargers.
- Automotive current monitoring.
- Notebook computers.
- DC motor control.
- Photo-voltaic systems.
- Precision current sources.
- Uninterruptible power supplies (UPS).
- High-end power supplies.
Q & A
- What is the primary function of the TSC102IDT?
The TSC102IDT measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.
- What is the input common-mode voltage range of the TSC102IDT?
The input common-mode voltage range is from 2.8 to 30 V.
- What is the maximum supply current consumption of the TSC102IDT?
The maximum supply current consumption is 420 µA.
- What is the operating temperature range of the TSC102IDT?
The operating temperature range is from -40 °C to 125 °C.
- What kind of ESD protection does the TSC102IDT offer?
The TSC102IDT offers 4 kV ESD protection.
- What are some common applications of the TSC102IDT?
Common applications include battery chargers, automotive current monitoring, notebook computers, DC motor control, photo-voltaic systems, precision current sources, uninterruptible power supplies, and high-end power supplies.
- What is the gain of the current sensing amplifier in the TSC102IDT?
The gain of the current sensing amplifier is 20 V/V.
- Does the TSC102IDT have a signal conditioning amplifier?
Yes, the TSC102IDT includes a fully accessible signal conditioning amplifier.
- What is the thermal resistance of the TSSOP8 package for the TSC102IDT?
The thermal resistance of the TSSOP8 package is 120 °C/W.
- Is the TSC102IDT robust against abnormal voltage conditions?
Yes, it can withstand up to 60 V in case of voltage spikes and as little as -16 V in case of reversed battery.
