LIGHT UP YOUR INDUSTRIAL IoT DESIGN
12
Engineers can opt for a light load efficiency range of
<10μA, which offers excellent transient response and
extends battery life via lower power dissipation in the
intended application. Other essential parameters include
operating temperature range, quiescent current, input
voltage range, and switching frequency levels. Some
OEMs deliver converter solutions with Ultra Low Power
(ULP) mode. Figure 3 shows how a ULP mode-integrated
converter switches from normal to ULP mode for voltage
monitoring and power saving. Designers can integrate
the IC with two comparators: The main comparator and
the ULP comparator. A decrease in VOUT will induce high
impedance and subsequently trigger the transition from
normal to ULP mode.
Selecting accelerometers with low power usage is
critical in IIoT applications. Advanced functions, such as
signal conditioning and intelligent user-programmable
application algorithms in accelerometers, ensure
efficient sensing in IIoT systems while maintaining low
power operation. As input current is a function of an
accelerometer's output data rate (ODR) and power
mode settings, engineers must consider the ODR before
incorporating it into an IIoT system (Figure 4).
Figure 3: Switching between Normal and ULP Modes (Source: ROHM)
Figure 4: The relationship between current and accelerometer ODR (Source: ROHM)
Selecting accelerometers with low power
usage is critical in IIoT applications.
"
"
