Active clamp

IPS160H

18/26

DocID027563 Rev 2

7

Active clamp

Active clamp is also known as fast demagnetization of inductive loads or fast current

decay. When a high-side driver turns off an inductance, an undervoltage is detected on

output.

dissipated. The energy is dissipated both in IC internal switch and in load resistance.

Figure 9: Active clamp equivalent principle schematic

OUT

GND

SUPPLY RAIL

GROUND PLANE

APPLICATION BOARD

IPS160H

L LOAD

Clamp

circuitry

VCC

EXPOSED PAD

GIPG1802150915LM