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BTS426L1 Datasheet(PDF) 6 Page - Infineon Technologies AG

Part No. BTS426L1
Description  Smart Highside Power Switch
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Maker  INFINEON [Infineon Technologies AG]
Homepage  http://www.infineon.com
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 6 page
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BTS426L1
Semiconductor Group
6
2003-Oct-01
Truth Table
Input-
Output
Status
level
level
425L1
426L1
Normal
operation
L
H
L
H
H
H
Open load
L
H
13)
H
H (L14))
L
Short circuit to
Vbb
L
H
H
H
L15)
H (L16))
Overtem-
perature
L
H
L
L
H
L
Undervoltage
L
H
L
L
H
H
Overvoltage
L
H
L
L
H
H
L = "Low" Level
X = don't care
Z = high impedance, potential depends on external circuit
H = "High" Level
Status signal after the time delay shown in the diagrams (see fig 5. page 11...12)
13
) Power Transistor off, high impedance
14
) with external resistor between pin 3 and pin 5
15)
An external short of output to Vbb, in the off state, causes an internal current from output to ground. If RGND is used, an offset
voltage at the GND and ST pins will occur and the VST low signal may be errorious.
16
) Low resistance to V
bb may be detected in ON-state by the no-load-detection
Terms
PROFET
V
IN
ST
OUT
GND
bb
VST
V
IN
I ST
I IN
V
bb
Ibb
I L
VOUT
IGND
VON
1
2
4
3
5
R
GND
Input circuit (ESD protection)
IN
GND
I
R
ESD-ZD
I
I
I
ESD zener diodes are not to be used as voltage clamp at DC
conditions. Operation in this mode may result in a drift of the zener
voltage (increase of up to 1 V).




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