RD014-RGUIDE-01
2018-03-15
Rev. 1
9
/
19
© 2018
Toshiba Electronic Devices & Storage Corporation
of the TLP7820 remains around 9 mA regardless of input voltage change. For example, a
floating power supply such as a bootstrap is used as a primary-side power supply for an
isolation amplifier since the floating power supply allows the use of small-value capacitors to
reduce the circuit size. Obviously, the constant supply current of the TLP7820 contributes
power supply consumption reduction and the circuit size reduction. In the trend of increasing
system speed, this also contributes suppress electromagnetic interference (EMI) caused by
large supply voltage fluctuations.
3. Application circuit example and its bill of materials
3
.1 Example of an application circuit for voltage sensing
Figure 3.1 shows an example of a voltage-sensing circuit using the TLP7820.
Figure 3.1 Example of a voltage-sensing circuit using the TLP7820
