Overview
The TSC103IDT, produced by STMicroelectronics, is a high-voltage, high-side current sense amplifier. This component is designed to measure a small differential voltage on a high-side shunt resistor and translate it into a ground-referenced output voltage. It is versatile and can operate in either single-supply or dual-supply configurations, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 to 5.5 | V |
| Common-Mode Operating Range (Single-Supply) | 2.9 V to 70 V | V |
| Common-Mode Operating Range (Dual-Supply) | -2.1 V to 65 V | V |
| Gain Options | 20 V/V, 25 V/V, 50 V/V, 100 V/V | |
| Total Supply Current (ICC) | 200 to 360 | µA |
| Maximum Junction Temperature | 150 | °C |
| Storage Temperature Range | -55 to 150 | °C |
| Output Voltage Accuracy | ±2.5% to ±22% (depending on Vsense) |
Key Features
- Independent supply and input common-mode voltages
- Wide common-mode operating range: 2.9 V to 70 V in single-supply configuration, -2.1 V to 65 V in dual-supply configuration
- Wide common-mode surviving range: -16 V to 75 V (reversed battery and load-dump conditions)
- Low current consumption: ICC max = 360 µA
- Pin selectable gain: 20 V/V, 25 V/V, 50 V/V or 100 V/V
- Buffered output
- High accuracy and stability over temperature
Applications
- Automotive current monitoring
- DC motor control
- Photo-voltaic systems
- Battery chargers
- Precision current sources
- Current monitoring of notebook computers
- Uninterruptible power supplies (UPS)
- High-end power supplies
Q & A
- What is the primary function of the TSC103IDT?
The TSC103IDT measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.
- What are the supply voltage ranges for the TSC103IDT?
The supply voltage range is from 2.7 V to 5.5 V.
- What are the common-mode operating ranges for the TSC103IDT?
In single-supply configuration, the range is 2.9 V to 70 V, and in dual-supply configuration, it is -2.1 V to 65 V.
- What gain options are available for the TSC103IDT?
The gain can be set to 20 V/V, 25 V/V, 50 V/V, or 100 V/V using the SEL1 and SEL2 pins.
- What is the maximum total supply current for the TSC103IDT?
The maximum total supply current (ICC) is 360 µA.
- What is the maximum junction temperature for the TSC103IDT?
The maximum junction temperature is 150 °C.
- What are some common applications of the TSC103IDT?
Common applications include automotive current monitoring, DC motor control, photo-voltaic systems, battery chargers, and high-end power supplies.
- How does the TSC103IDT handle common-mode voltages?
The TSC103IDT can handle a wide common-mode operating range and can survive common-mode voltages from -16 V to 75 V.
- What is the output voltage accuracy of the TSC103IDT?
The output voltage accuracy varies from ±2.5% to ±22% depending on the Vsense value.
- Can the TSC103IDT be used in both single and dual supply configurations?
- What is the storage temperature range for the TSC103IDT?
The storage temperature range is from -55 °C to 150 °C.
