miniPROFET
®
BSP 452
Data Book 1 20.08.96

• High-side switch
• Short-circuit protection
• Input protection
• Overtemperature protection with hysteresis
• Overload protection
• Overvoltage protection
• Switching inductive load
• Clamp of negative output voltage with inductive loads
• Undervoltage shutdown
• Maximum current internally limited
• Electrostatic discharge (ESD) protection
• Reverse battery protection
1
)
Package: SOT 223
Type Ordering code
BSP 452 Q67000-S271
Application
•
µC compatible power switch for 12 V DC grounded loads
•
All types of resistive, inductive and capacitive loads
•
Replaces electromechanical relays and discrete circuits
General Description
N channel vertical power FET with charge pump, ground referenced CMOS compatible input,monolithically
integrated in Smart SIPMOS

technology. Fully protected by embedded protection functions.
Blockdiagramm:
IN3
R
in
+ V
bb
Signal GND
ESD
miniPROFET
OUT
GND
Logic
Voltage
sensor
Voltage
source
Charge pump
Level shifter
Temperature
sensor
Rectifier
Limit for
unclamped
ind. loads
Gate
protection
Current
limit
2
4
1
Load GND
Load
V
Logic
Overvoltage
protection
ESD-
Diode

1
)
With resistor R
GND
=150 Ω in GND connection, resistor in series with IN connections reverse load current
limited by connected load.
SOT-223
SOT-223
1