TSC101(2007) 데이터 시트보기 (PDF) - STMicroelectronics

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TSC101
(Rev.:2007)

High side current sense amplifier

STMicroelectronics 

Application schematics and pin description

1

Application schematics and pin description

TSC101

The TSC101 high-side current-sense amplifier features a 2.8V to 30V input common-mode

range that is independent of supply voltage. The main advantage of this feature is to allow

high-side current sensing at voltages much greater than the supply voltage (VCC).

Figure 1. Application schematics

Vsense

2.8V to 30V

Rsense

3

Vp

4

Vm

Iload

load

Rg1

Rg2

4V to 24V

5 VCC

Rg3

Gnd

2

1

Out

Vout=Av.Vsense

Table 1 describes the function of each pin. The pin positions are shown in the illustration on

the cover page and in Figure 1 above.

Table 1. Pin descriptions

Symbol

Type

Function

Out

Analog output

The output voltage, proportional to the magnitude of the sense

voltage Vp-Vm.

Gnd

Power supply Ground line.

VCC

Power supply Positive power supply line.

Vp

Analog input

Connection for the external sense resistor. The measured current

enters the shunt on the Vp side.

Vm

Analog input

Connection for the external sense resistor. The measured current

exits the shunt on the Vm side.

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