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BTS409L1 Datasheet, PDF (1/14 Pages) Siemens Semiconductor Group – Smart Highside Power Switch (Overload protection Current limitation Short circuit protection Thermal shutdown) | |||
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BTS409L1
Smart Highside Power Switch
Features
⢠Overload protection
⢠Current limitation
⢠Short circuit protection
⢠Thermal shutdown
⢠Overvoltage protection (including load dump)
⢠Fast demagnetization of inductive loads
⢠Reverse battery protection1)
⢠Undervoltage and overvoltage shutdown with
auto-restart and hysteresis
⢠Open drain diagnostic output
⢠Open load detection in ON-state
⢠CMOS compatible input
⢠Loss of ground and loss of Vbb protection
⢠Electrostatic discharge (ESD) protection
Product Summary
Overvoltage protection
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
Vbb(AZ)
Vbb(on)
RON
IL(ISO)
IL(SCr)
TO-220AB/5
5
5
Application
Standard
⢠µC compatible power switch with diagnostic
feedback for 12 V and 24 V DC grounded loads
⢠All types of resistive, inductive and capacitve loads
⢠Replaces electromechanical relays, fuses and discrete circuits
1
Straight leads
43 V
5.0 ... 34 V
200 mâ¦
2.3 A
4A
5
1
SMD
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input and diagnostic
feedback, monolithically integrated in Smart SIPMOSï technology. Providing embedded protective functions.
2 IN
Voltag
source
V Logic
Voltag
sensor
ESD
4 ST
Logic
Overvoltag
protectio
Curren
limit
Gate
protectio
+ Vbb 3
Charge
Level
f
Rectifier
Limit for
unclampe
ind.
Open
Short to
detectio
Temperatur
sensor
OUT
5
RO
Load
GND
1
Signal GND
PROFET 
GND
Load GND
1) With external current limit (e.g. resistor RGND=150 â¦) in GND connection, resistor in series with ST
connection, reverse load current limited by connected load.
Infineon Technologies AG
1
2003-Oct-01
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