TSC103IPT datasheet(1/23 Pages) STMICROELECTRONICS

部件名	TSC103IPT

功能描述	High-voltage, high-side current sense amplifier

PDF	23 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

1 / 23 page

January 2010

Doc ID 16873 Rev 1

1/23

23

TSC103

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: 20 V/V, 25 V/V, 50 V/V or

100 V/V

■ Buffered output

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 TSC103 measures a small differential voltage

on a high-side shunt resistor and translates it into

a ground-referenced output voltage. The gain is

adjustable to four different values from 20 V/V up

to 100 V/V by two selection pins.

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

SEL2

Vm

SEL1

6

8

Gnd

Vp

4

Out

7 Vcc-

5 Vcc+

Pin connections

(top view)

www.st.com

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