Overview
The TSC103IPT, produced by STMicroelectronics, is a high-voltage, high-side current sense amplifier. This component measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. It is designed for use in a wide variety of applications due to its wide input common-mode voltage range, low quiescent current, and compact TSSOP8 packaging.
The TSC103IPT features independent supply and input common-mode voltages, allowing for flexibility in different power configurations. It operates within a supply voltage range of 2.7 to 5.5 V and has a low current consumption of less than 360 μA, making it energy-efficient.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Input Common-Mode Voltage Range (Single-Supply) | 2.9 | 70 | V | |
| Input Common-Mode Voltage Range (Dual-Supply) | -2.1 | 65 | V | |
| Supply Voltage Range | 2.7 | 5.5 | V | |
| Total Supply Current (ICC) | 200 | 360 | μA | |
| Gain (Selectable) | 20 | 100 | V/V | |
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | TSSOP-8L |
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
Applications
- Automotive current monitoring
- DC motor control
- Photo-voltaic systems
- Battery chargers
- Precision current sources
- Current monitoring of notebook computers
- Uninterruptible power supplies
- High-end power supplies
Q & A
- What is the primary function of the TSC103IPT?
The TSC103IPT measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage.
- What are the available gain settings for the TSC103IPT?
The gain is selectable through two pins and can be set to 20 V/V, 25 V/V, 50 V/V, or 100 V/V.
- What is the operating temperature range of the TSC103IPT?
The operating temperature range is from -40°C to 125°C.
- What is the maximum supply current consumption of the TSC103IPT?
The maximum supply current consumption is 360 μA.
- What types of packages are available for the TSC103IPT?
The TSC103IPT is available in TSSOP-8L packaging.
- What are some common applications of the TSC103IPT?
Common applications include automotive current monitoring, DC motor control, photo-voltaic systems, battery chargers, and precision current sources.
- How does the TSC103IPT handle common-mode voltages?
The TSC103IPT can operate with a wide common-mode voltage range from 2.9 V to 70 V in single-supply configuration and from -2.1 V to 65 V in dual-supply configuration.
- Is the TSC103IPT suitable for high-voltage applications?
Yes, it can survive common-mode voltages ranging from -16 V to 75 V, making it suitable for high-voltage applications including reversed battery and load-dump conditions.
- How does the TSC103IPT manage power consumption?
The TSC103IPT has low current consumption, with a maximum of 360 μA, which minimizes power consumption in applications.
- What is the significance of the buffered output in the TSC103IPT?
The buffered output ensures that the output voltage is stable and not affected by external loads, providing a reliable output signal.
