TSC2010H datasheet(25/50 Pages) STMICROELECTRONICS

Il numero della parte	TSC2010H

Spiegazioni elettronici	High temperature, high voltage, precision, bidirectional current sense amplifiers

PDF	50 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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25 / 50 page

So due to the architecture of the TSC2011H, the current to be measured must be much larger than the input bias

current. In case of small current to measure the Iib current must be taken into account.

Figure 55. Input bias current vs. common mode voltage Vcc = 5 V

-20

-10

-600

-500

-400

-300

-200

-100

100

200

300

400

500

600

Iibp

Vref=Vcc/2

Vsense=0V

Vcc=5V

Iibn

Vicm (V)

•

Gnd < Vicm < Vcc

In this manner, the TSC2011H is only powered by the power supply Vcc, and the iib currents are very close to 0

µA and do not have any impact on the current measurement.

•

-20 V < Vicm < Gnd

The TSC2011H is fully functional in this range of common mode voltage and has also been characterized.

As the high positive common mode voltage, in this specific range, the TSC2011H is also powered by the input,

see Figure 3.

Figure 56. Power supply when Vicm < Gnd

TSC2010H, TSC2011H, TSC2012H

Theory of operation

DS13791 - Rev 1

page 25/50

TSC2010H Scheda tecnica(PDF) 25 Page - STMicroelectronics