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IPS160H Datasheet(PDF) 18 Page - STMicroelectronics

Part # IPS160H
Description  Single high-side switch
PDF  26 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

IPS160H Datasheet(HTML) 18 Page - STMicroelectronics

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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.
The OUT pin is pulled down to Vdemag. The conduction state is modulated by an internal
circuitry in order to keep the OUT pin voltage at about Vdemag until the load energy has been
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



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