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