ST STEVAL-AETKT2V1, User Manual

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1.3 Connection
The STEVAL-AETKT2V1 evaluation kit can be connected to the application design via J1 header.
Table 2. J1 pin-out description
J1 pin Description
REF Output or input voltage reference (see Section 1.4 Voltage reference settings )
VCC Supply voltage
GND Ground
OUT TSC21x analog output value
1.4 Voltage reference settings
As the TSC21x family devices can measure current in both directions, some voltage reference has to be provided.
Voltage reference can be generated directly on the
STEVAL-AETKT2V1 evaluation kit by a precision op-amp or
by shunt voltage reference. Another option is to use an external reference voltage source.
Refer to the following table for proper jumper settings.
Important: Only one jumper at a time can be placed on the kit.
Table 3. Voltage reference J2A and J2B jumper settings
J2A J2B Functionality
NA GND Unidirectional
NA VCC Unidirectional Inverted
REF1 NA V
ref
generated by op-amp TSB711 (default Vcc/2)
(1)
REF2 NA V
ref
generated by shunt reference TS431 (default 1.24V)
(1)
REF1 or REF2 GND or VCC Not allowed (2)
NA NA External voltage reference provided from J1
1. The reference voltage value can be adjusted by resistor values.
2. IC components might be damaged
UM2859
Connection
UM2859 - Rev 1
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