TSC1031IDT

The TSC1031 measures a small differential voltage on a high- side shunt resistor and translates it into a ground- referenced output voltage. The TSC1031's dedicated schematic eases the implementation of EMI filtering in harsh environments. The gain is adjustable to 50 V/V or 100 V/V by a selection pin. Wide input common- mode voltage range, low quiescent current, and tiny TSSOP8 packaging enable use in a wide variety of applications. The input common- mode and power supply voltages are independent. The common- mode voltage can range from 2.9 to 70V in the singlesupply configuration or be offset by an adjustable voltage supplied on the Vcc- pin in the dualsupply configuration. With a current consumption lower than 360 μA and a virtually null input leakage current in standby mode, the power consumption in the applications is minimized.

Applications

• Automotive current monitoring
• DC motor control
• Photovoltaic systems
• Battery chargers
• Precision current sources
• Current monitoring of notebook computers
• Uninterruptible power supplies
• High-end power supplies

Key features

• Independent supply and input common-mode voltages
• Wide common-mode operating range: 2.9 to 70V in single-supply configuration
• 2.1 to 65V in dual-supply configuration
• Wide common-mode surviving range: -16 to 75V (reversed battery and load-dump conditions)
• Supply voltage range: 2.7 to 5.5V in single supply configuration
• Low current consumption: ICC max = 360 μA
• Pin selectable gain: 50 V/V or 100 V/V
• Buffered output
• EMI filtering