TSC1031IDT STMicroelectronics, TSC1031IDT Datasheet - Page 17

• Manufacturer Part Number: TSC1031IDT
• Description: IC AMP HI SIDE CURR SENSE 8SOIC
• Manufacturer: STMicroelectronics

Specifications of TSC1031IDT

• Amplifier Type: Current Sense
• Number Of Circuits: 1
• Slew Rate: 0.6 V/µs
• -3db Bandwidth: 700kHz
• Current - Input Bias: 10µA
• Voltage - Input Offset: 500µV
• Current - Supply: 200µA
• Current - Output / Channel: 26mA
• Voltage - Supply, Single/dual (±): 2.7 V ~ 5.5 V, ±1.35 V ~ 2.75 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Channels: Dual
• Common Mode Rejection Ratio (min): 90 dB
• Input Voltage Range (max): 5.5 V
• Input Voltage Range (min): 2.7 V
• Input Offset Voltage: 1100 uV
• Input Bias Current (max): 10 uA
• Supply Current: 300 uA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 125 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Output Type: -
• Gain Bandwidth Product: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10452-2

TSC1031
The resistor ratio R
scale output range of the application, the R
(equal to Av) are important parameters and must therefore be selected carefully.
The TSC1031’s dedicated schematic eases the implementation of EMI filtering in harsh
environments. An example of filters is described in
performed by R
The values of R
amplifier inputs. The value of the C
of the first-order low-pass filter provides enough attenuation to the high frequency
interferences.
To balance the contribution of R
resistor R
chosen according to the following formula.
These precautions having been taken, the TSC1031’s gain will be unaffected by the
implementation of the input filtering resistors.
K1 = 25 = R
f3
should be connected between pin A1 and Gnd. The value of R
f1
f1
g3
, R
and R
/R
g3
f2
/R
g1
and C
=R
g1
f2
should be equal so as to balance the contribution on both
is internally set to 20 V/V for TSC1031. Since they define the full-
f3
/R
f
.
f1
Doc ID 16875 Rev 1
f1
and R
f
capacitor should be chosen so that the cut-off frequency
f2
in the current sense amplifier gain, an output
sense
resistor and the R
Figure
9, where the input filtering is
Application information
g3
/R
g1
resistor ratio
f3
should be
17/23