TSC102(2011) 查看數據表（PDF） - STMicroelectronics

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TSC102
(Rev.:2011)

High-side current sense amplifier plus signal conditioning amplifier

STMicroelectronics 

TSC102

Application schematic and pin description

1

Application schematic and pin description

The TSC102 high-side current sense amplifier features a 2.8 to 30 V input common-mode

range that is independent of the supply voltage. The main advantage of this feature is that it

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

Figure 1. Application schematics

Current

sense

amplifier

Signal

conditioning

amplifier

5V

Iload Vp

TSC102

6

Vcc

8

Out

Rsense Vm

Av=20 V/V

5

1

Vsense

Gnd

2

A1

A2

3

4

A3

7

Vout

AM04508

Table 1 describes the function of each pin. Their position is shown in the illustration on the

cover page and in Figure 1 above.

A1

Table 1. Pin description

Symbol

Type

Function

Out

Analog output

Out voltage is 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.

A1

Analog input Connection to current sensing amplifier output.

A2

Analog input Connection to signal conditioning amplifier non-inverting input.

A3

Analog input Connection to signal conditioning amplifier inverting input.

Doc ID 16754 Rev 2

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