BTS426L1 Datasheet, PDF (1/14 Pages) Siemens Semiconductor Group – Smart Highside Power Switch (Overload protection Current limitation Short circuit protection)

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 ON-state}
• _{CMOS compatible input}
• _{Loss of ground and loss of Vbb protection}
• _{Electrostatic discharge (ESD) protection}
PROFET® BTS426L1
Product Summary
Overvoltage protection
Operating voltage
On-state resistance
Load current (ISO)
Current limitation
V_bb(AZ)
Vbb(on)
RON
IL(ISO)
IL(SCr)
43 V
5.0 ... 34 V
60 mΩ
7.0 A
16 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}
• _{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. Providing embedded protective functions.
2 ^IN
Voltage
source
V _Logic
Voltage
sensor
ESD
4 ST
Logic
Overvoltage
protection
Current
limit
Gate
protection
+ Vbb ₃
Charge pump
Level shifter
Rectifier
Limit for
unclamped
ind. loads
Open load
Short to Vbb
detection
GND
1
Signal GND
OUT
5
Temperature
sensor
Load
RO
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 of 14
2003-Oct-01