Datasheet

TSC103 Application schematic and pin description
Doc ID 16873 Rev 2 3/26
1 Application schematic and pin description
The TSC103 high-side current sense amplifier can be used in either single- or dual-supply
mode. In the single-supply configuration, the TSC103 features a wide 2.9 V to 70 V input
common-mode range totally independent of the supply voltage. In the dual-supply range,
the common-mode range is shifted by the value of the negative voltage applied on the Vcc-
pin. For instance, with Vcc+ = 5 V and Vcc- = -5 V, then the input common-mode range is
-2.1 V to 65 V.
Figure 1. Single-supply configuration schematic
AM04517
5 V
Vsense
load
Iload
Rsense
Common-mode voltage: 2.9 V to 70 V
Vp Vm
Rg1
Rg2
Vcc+
Vcc
SEL1
Vout
load
Iload
Rsense
Rg3
Vp Vm
Out
Rg1
Rg2
Voltage
buffer
Sense
amplifier
Vcc+
TSC103
Gnd
Vcc-
K2
µ Controller
ADC
Vcc
GPIO2
Gnd
SEL1
SEL2
GPIO1