Overview
The TSC1031IYPT from STMicroelectronics is a high-voltage, high-side current sense amplifier designed to measure small differential voltages on a high-side shunt resistor and translate them into a ground-referenced output voltage. This component is particularly useful in applications requiring precise current monitoring in harsh environments. The TSC1031IYPT features adjustable gain settings of 50 V/V or 100 V/V, which can be selected via a gain-select pin. It operates with a wide input common-mode voltage range and low quiescent current, making it suitable for various industrial and automotive applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage Range | 2.7 to 5.5 V | V |
| Input Common-Mode Voltage Range (Single-Supply) | 2.9 to 70 V | V |
| Input Common-Mode Voltage Range (Dual-Supply) | -2.1 to 65 V | V |
| Common-Mode Surviving Range | -16 to 75 V | V |
| Maximum Quiescent Current | 360 μA | A |
| Gain Settings | 50 V/V or 100 V/V | V/V |
| Output Stage Saturation Voltage (High-State) | 85 to 135 mV | mV |
| Output Stage Saturation Voltage (Low-State) | 80 to 125 mV | mV |
| Operating Temperature Range | -40 to 125 °C | °C |
| Package Type | 8-TSSOP | - |
Key Features
- Independent supply and input common-mode voltages
- Wide common-mode operating range: 2.9 to 70 V in single-supply configuration, -2.1 to 65 V in dual-supply configuration
- Wide common-mode surviving range: -16 to 75 V (reversed battery and load-dump conditions)
- Low current consumption: ICC max = 360 μA
- Pin selectable gain: 50 V/V or 100 V/V
- Buffered output
- EMI filtering capabilities
Applications
- Automotive current monitoring
- DC motor control
- Photovoltaic 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 TSC1031IYPT?
The TSC1031IYPT measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.
- What are the gain settings available for the TSC1031IYPT?
The gain can be set to either 50 V/V or 100 V/V via a gain-select pin.
- What is the input common-mode voltage range for the TSC1031IYPT in single-supply configuration?
The input common-mode voltage range is from 2.9 to 70 V.
- What is the maximum quiescent current of the TSC1031IYPT?
The maximum quiescent current is 360 μA.
- What are the operating temperature ranges for the TSC1031IYPT?
The operating temperature range is from -40 to 125 °C.
- What types of packages are available for the TSC1031IYPT?
The component is available in 8-TSSOP packaging.
- Does the TSC1031IYPT support EMI filtering?
Yes, the TSC1031IYPT has dedicated schematic features that ease the implementation of EMI filtering in harsh environments.
- What are some common applications for the TSC1031IYPT?
Common applications include automotive current monitoring, DC motor control, photovoltaic systems, battery chargers, and high-end power supplies.
- Is the TSC1031IYPT suitable for automotive applications?
Yes, the TSC1031IYPT is AEC-Q100 qualified, making it suitable for automotive applications.
- How does the TSC1031IYPT handle common-mode voltage in dual-supply configuration?
In dual-supply configuration, the common-mode voltage range is shifted by the value of the negative voltage applied on the Vcc- pin.
