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TDE1898R Fiches technique(PDF) 4 Page - STMicroelectronics

No de pièce TDE1898R
Description  0.5A HIGH-SIDE DRIVER INDUSTRIAL INTELLIGENT POWER SWITCH
Download  12 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDE1898R Fiches technique(HTML) 4 Page - STMicroelectronics

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Figure 1
DIAGNOSTIC TRUTH TABLE
Diagnostic Conditions
Input
Output
Diag1
Diag2
Normal Operation
L
H
L
H
H
H
H
H
Open Load Condition (Io <Iold)L
H
L
H
H
L
H
H
Short to VS
L
H
H
H
L
L
H
H
Short Circuit to Ground (IO =ISC)
(**)
TDE1897R
TDE1898R
H
<H (*)
H
L
HH
L
H
H
H
H
Output DMOS Open
L
H
L
L
H
L
H
H
Overtemperature
L
H
L
L
H
H
L
L
Supply Undervoltage (VS <Vsth1 in the falling phase of the
supply voltage; VS <Vsth2 in the rising phase of the supply
voltage)
L
H
L
L
L
L
L
L
(*) According to the intervention of the current limiting block.
(**) A cold lamp filament, or a capacitive load may activate the current limiting circuit of the IPS, when the IPS is initially turned on. TDE1897
uses Diag2 to signal such condition, TDE1898 does not.
SOURCE DRAIN NDMOS DIODE
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
Vfsd 2-3
Forward On Voltage
@ Ifsd = 625mA
1
1.5
V
Ifp 2-3
Forward Peak Current
t = 10ms; d = 20%
2
A
trr 2-3
Reverse Recovery Time
If = 625mA di/dt = 25A/
µs
200
ns
tfr 2-3
Forward Recovery Time
50
ns
THERMAL CHARACTERISTICS (*)
Θ Lim
Junction Temp. Protect.
135
150
°C
TH
Thermal Hysteresis
30
°C
SWITCHING CHARACTERISTICS (VS = 24V; RL =48
Ω) (*)
ton
Turn on Delay Time
100
µs
toff
Turn off Delay Time
20
µs
td
Input Switching to Diagnostic
Valid
100
µs
Note Vil < 0.8V, Vih > 2V @ (V+In > V–In); Minidip pin reference.
(*) Not tested.
TDE1897R - TDE1898R
4/12


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