Smart High Side Switch • A high-side switch is a power management device that connects to a battery input and switches on/off downstream loads and protects against short circuit and other faults • A low-side switch is a power management device that connects from the load and switches on/off to ground • High-side switch is preferred due to ...

Figure 1 shows the basic equivalent test circuit for a smart high-side switch (HSS). The HSS is the device under test (DUT) that performs the repetitive short-circuit tests while the Rsupply and Lsupply are the input impedance from the voltage source side (VBB), and the Rshort and Lshort are the output impedance from the module board and the ...

These SMARTMOS devices include dual self-protected high-side switches with enhanced diagnostics. In case of a short-circuit from the HSx pin to the ground, the corresponding high-side switch is immediately turned off via two overload protection features:

Within the scope of this document, a short circuit is defined as a constant overload condition in the load circuit that: (a) would draw a current in excess of the device’s over-current limit, unless the power device under test reacts according to its embedded protective functions; or (b) results in excessive device current that triggers one (or ...

Figure 1 shows the basic equivalent test circuit for a smart high-side switch (HSS). The HSS performs the repetitive short-circuit tests. The Rsupply and Lsupply are the input impedance from the voltage source side (VBB), and the Rshort and Lshort are the output impedance from the module board and the cables. Figure 1. Smart HSS Short-Circuit Model

2023年6月1日 · The high-side configuration requires the switch to be placed between the power supply and the load and is the preferred switching technique when shorts to ground are more likely to occur, in which case it is safer to disconnect …

High-Side Switch Open-Load Detection in ON-State Introduction The open load detection in powered-on state test refers to implementing a mechanism by which a programmable logic controller (PLC) can detect whether the connection to a load has been severed while in powered-on state and supplying power to a load, as opposed to powered-off state.

Nowadays, high-voltage circuit breakers have reached such high short-circuit capabilities that testing them under the full rated voltage is generally not possible with direct tests, and...

High Side Switches are used worldwide in automotive applications. Two reasons justify this choice, Short Circuit hazards and System Cost. A Short Circuit (SC) hazard is more likely to occur to GND than to the battery voltage VBAT, thus switching from the high side is considered safer than switching from the low side.

This paper presents a fully protected high side switch design from the short circuit perspective. The high side switch is dual configurable: either 7 Ω or 2 Ω in terms of ON resistance, each with its short circuit current limitation level.