BTS308 Datasheet, PDF (1/13 Pages) Siemens Semiconductor Group – Smart Highside Power Switch (Overload protection Current limitation Short circuit protection Thermal shutdown)

PROFET® BTS 308
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 protection}1)
• _{Undervoltage and overvoltage shutdown with}
auto-restart and hysteresis
• _{Open drain diagnostic output}
• _{Open load detection in OFF-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)
V_bb(AZ)
V_bb(on)
R_ON
I_L(ISO)
60 V
4.7 ... 34 V
300 mΩ
1.3 A
TO-220AB/5
5
Standard
5
1
Straight leads
5
1
SMD
Application
• _{µC compatible power switch with diagnostic feedback for 12 V and 24 V DC grounded loads}
• _{Most suitable for inductive loads}
• _{Replaces electromechanical relays, fuses and discrete circuits}
• _{Fast switching}
• _{Not suitable for lamp loads}
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.
2 ^IN
Voltage
source
V _Logic
Voltage
sensor
ESD
4 ST
Logic
Overvoltage Current
Gate
protection
limit protection
+ Vbb
3
Charge pump
Level shifter
Rectifier
Limit for
OUT
unclamped
5
ind. loads ^Temperature
sensor
Open load
detection
Load
Short circuit
detection
GND
1
Signal GND
PROFET^®
Load GND
1) _{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