Overview
The TSC888CILT, produced by STMicroelectronics, is a low-cost high-side current sense amplifier. This device measures a small differential voltage on a high-side shunt resistor and translates it into a ground-referenced output voltage. The gain of the amplifier is internally fixed, available in three options: 20 V/V, 50 V/V, or 100 V/V.
The TSC888CILT is characterized by its wide input common-mode voltage range (2.8 V to 24 V), independent supply and input common-mode voltages, and low current consumption (ICC max = 1 mA). Its tiny SOT23-5 packaging makes it ideal for a variety of applications, including desktop computers, servers, photovoltaic/solar systems, battery chargers, notebook computers, and DC motor control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage (VCC) | 4.0 to 24 | V |
| Common Mode Operating Range (Vicm) | 2.8 to 24 | V |
| Gain (Av) | 20, 50, 100 | V/V |
| Total Supply Current (ICC) | 1 | mA |
| Input Pins Differential Voltage (Vp-Vm) | ±2 | V |
| Input Pin Voltages (Vp, Vm) | -0.3 to 30 | V |
| Output Pin Voltage (Vout) | -0.3 to Vcc | V |
| Storage Temperature (Tstg) | -55 to 150 | °C |
| Maximum Junction Temperature (Tj) | 150 | °C |
| Thermal Resistance Junction to Ambient (Rthja) | 250 | °C/W |
Key Features
- Buffered Output: Provides a stable output voltage proportional to the sensed current.
- Independent Supply and Input Common-Mode Voltages: Allows the device to operate with supply voltages independent of the input common-mode voltages.
- Wide Supply Voltage Range: Operates from 4 V to 24 V.
- Wide Common Mode Operating Range: From 2.8 V to 24 V.
- Internally Fixed Gain: Available in 20 V/V, 50 V/V, or 100 V/V options.
- Low Current Consumption: Maximum current consumption of 1 mA.
- Tiny SOT23-5 Packaging: Compact package suitable for various applications.
Applications
- Desktop Computers and Servers SMPS: Suitable for power supply monitoring in desktop and server systems.
- Photovoltaic/Solar Systems: Used for current sensing in solar panel systems.
- Battery Chargers: Ideal for monitoring charging currents in battery chargers.
- Notebook Computers: Used in power management circuits of notebook computers.
- DC Motor Control: Employed in DC motor control systems for current sensing.
Q & A
- What is the primary function of the TSC888CILT?
The TSC888CILT 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 options for the TSC888CILT?
The gain is internally fixed and available in 20 V/V, 50 V/V, or 100 V/V options.
- What is the operating temperature range of the TSC888CILT?
The operational temperature range is from -40°C to 85°C.
- What is the maximum current consumption of the TSC888CILT?
The maximum current consumption is 1 mA.
- What is the common mode operating range of the TSC888CILT?
The common mode operating range is from 2.8 V to 24 V.
- What type of packaging does the TSC888CILT use?
The device is packaged in a tiny SOT23-5 package.
- Is the TSC888CILT RoHS compliant?
- What are some typical applications of the TSC888CILT?
Typical applications include desktop computers, servers, photovoltaic/solar systems, battery chargers, notebook computers, and DC motor control.
- What is the thermal resistance junction to ambient for the SOT23-5 package?
The thermal resistance junction to ambient is 250 °C/W.
- What is the maximum junction temperature for the TSC888CILT?
The maximum junction temperature is 150 °C.
