PROFET® BTS409L1
Smart Highside Power Switch
Features
Product Summary
Overvoltage protection
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
• 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
Vbb(AZ)
Vbb(on)
RON
IL(ISO)
IL(SCr)
43
V
5.0 ... 34 V
200 mΩ
2.3
A
4
A
TO-220AB/5
5
5
5
1
Straight leads
Standard
1
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
• 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. Fully protected by embedded protection
functions.
+ V bb
Voltage
Overvoltage
Current
source
protection
limit
3
Gate
protection
V Logic
Voltage
sensor
2
Level shifter
Rectifier
IN
ESD
4
Limit for
unclamped
ind. loads
Charge pump
OUT
5
Temperature
sensor
Open load
Short to Vbb
detection
Logic
Load
R
ST
O
GND
®
PROFET
GND
1
Signal GND
1)
Load GND
With external current limit (e.g. resistor RGND=150 Ω) in GND connection, resistor in series with ST
connection, reverse load current limited by connected load.
Semiconductor Group
1
12.96
