TSC1031 datasheet(1/26 Pages) STMICROELECTRONICS

부품명	TSC1031

상세설명	High-voltage, high-side current sense amplifier

PDF	26 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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1 / 26 page

April 2011

Doc ID 16875 Rev 2

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26

TSC1031

High-voltage, high-side current sense amplifier

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)

■ Supply voltage range:

2.7 to 5.5 V 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

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

Description

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 70 V in the single-

supply configuration or be offset by an adjustable

voltage supplied on the Vcc- pin in the dual-

supply 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.

SO-8

(Plastic package)

TSSOP8

(Plastic package)

2

1

3

SEL

Vm

A1

6

8

Gnd

Vp

4

Out

7 Vcc-

5 Vcc+

Pin connections

(top view)

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