TSC102 datasheet(6/24 Pages) STMICROELECTRONICS

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Electrical characteristics

TSC102

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Doc ID 16754 Rev 2

Table 6.

Current sensing amplifier output stage

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Gain

(variation of Va1 versus Vsense)

V/V

Voh1

A1 node high-level saturation

voltage

Voh1 =Vcc-Va1

Vsense = 1 V

Ia1 =1mA

-40° C< Tamb < 125° C

185

Vol1

A1 node low-level saturation

voltage

Vsense =-1 V

Ia1 =1mA

-40° C< Tamb < 125° C

165

Isc1

Short-circuit current

A1 connected to VCC or Gnd

ΔVa1/ΔT Output voltage drift versus T(1)

Tmin < Tamb < Tmax

±400

ppm/°C

ΔVa1/ΔIa1 Output stage load regulation

-5 mA < Ia1< +5 mA

Ia1 sink or source current

0.4

±2

mV/mA

ΔVa1

Total output voltage accuracy(2)

Vsense = 50 mV

Tamb = 25° C

Tmin < Tamb < Tmax

±2.5

±4

ΔVa1

Total output voltage accuracy(2)

Vsense = 100 mV

Tamb = 25° C

Tmin < Tamb < Tmax

±2.5

±4

ΔVa1

Total output voltage accuracy(2)

Vsense = 20 mV

Tamb = 25° C

Tmin < Tamb < Tmax

±8

±10

ΔVa1

Total output voltage accuracy(2)

Vsense = 10 mV

Tamb = 25° C

Tmin < Tamb < Tmax

±13

±16

See Chapter 6: Parameter definitions on page 12 for the definition of output voltage drift versus temperature.

Output voltage accuracy is the difference with the expected theoretical output voltage Va1-th =Av * Vsense. See Chapter 6 for

a more detailed definition.

Table 7.

Current sensing amplifier frequency response

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Va1 settling to 1% final value

Vsense =10mV to 100mV,

Cload =47pF

7µs

Slew rate

Vsense =10mV to 100mV

0.2

0.4

V/µs

3 dB bandwidth

Cload = 47 pF

800

kHz

Table 8.

Current sensing amplifier noise

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Equivalent input noise voltage

f = 1 kHz

nV/

√Hz

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