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PDF IPS521G Data sheet ( Hoja de datos )
| Número de pieza | IPS521G | |
| Descripción | FULLY PROTECTED HIGH SIDE POWER MOSFET SWITCH | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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Data Sheet No.PD 60157-H
IPS521G
FULLY PROTECTED HIGH SIDE POWER MOSFET SWITCH
Features
• Over temperature protection (with auto-restart)
• Short-circuit protection (current limit)
• Active clamp
• E.S.D protection
• Status feedback
• Open load detection
• Logic ground isolated from power ground
Description
The IPS521G is a fully protected five terminal high side
switch with built in short circuit, over-temperature, ESD
protection, inductive load capability and diagnostic
feedback. The output current is controlled when it
reaches Ilim value. The current limitation is activated
until the thermal protection acts. The over-tempera-
ture protection turns off the high side switch if the
junction temperature exceeds Tshutdown. It will au-
tomatically restart after the junction has cooled 7oC
below Tshutdown. A diagnostic pin is provided for
status feedback of short-circuit, over-temperature
and open load detection. The double level shifter
circuitry allows large offsets between the logic ground
and the load ground.
Typical Connection
Product Summary
Rds(on)
V clamp
I Limit
V open load
100mΩ (max)
50V
10A
3V
Truth Table
Op. Conditions In Out
Normal
HH
Normal
LL
Open load
HH
Open load
LH
Over current
H L (limiting)
Over current
L
L
Over-temperature H L (cycling)
Over-temperature L
L
Package
Dg
H
L
H
H
L
L
L
L
+ 5v
15K
Status
feedback
Rdg
Dg
Rin
Logic
signal
In
+ VCC
Output pull-up resistor
Logic
control
Vcc
Out
Gnd
Load
Logic Gnd
Load Gnd
8 Lead SOIC
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1
1 page  
IPS521G
Vin
T clamp
IIodust
Out
( + Vcc )
0V
V clamp
( see Appl . Notes to evaluate power dissipation )
Figure 1 - Active clamp waveforms
Vin 5 V
0V
Iout
Ilim.
limiting
T
Tsd+
T(1s6d0- ° )
T shutdown
cycling
Figure 2 - Protection timing diagram
Vin
Vcc
90%
Vcc - 5V
Vout
10%
Td on
dV/dt on
Tr 1 Tr 2
Iout1
Resistive load
Eon1
Eon2
E1(t)
Iout2
E2 (t)
Inductive load
Figure 3 - Switching times definition (turn-on)
Turn on energy with a resistive or an
inductive load
Vin
90%
Vout
10%
Td off
dV/dt off
Tf
Figure 4 - Switching times definition (turn-off)
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5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet IPS521G.PDF ] | |
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