BTS621L1 Datasheet, PDF (1/15 Pages) Siemens Semiconductor Group – Smart Two Channel Highside Power Switch (Overload protection Current limitation Short circuit protection Thermal shutdown)

PROFET® BTS621L1
Smart Two Channel 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}
Product Summary
Overvoltage protection V_bb(AZ)
43 V
Operating voltage
Vbb(on) 5.0 ... 34 V
channels:
each
both
parallel
On-state resistance R_ON
Load current (ISO) I_L(ISO)
Current limitation I_L(SCr)
100 50 mΩ
4.4 8.5 A
8
8A
TO-220AB/7
Application
• _{µC compatible power switch with diagnostic}
1
Standard
7
7
1
Straight leads
7
1
SMD
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.
3 IN1
6 IN2
ESD
5 ST
Voltage
source
V _Logic
Voltage
sensor
Logic
PROFET^
Overvoltage
protection
Current
limit 1
Gate 1
protection
+ V _bb
4
Level shifter
Rectifier 1
Charge
pump 1
Charge
pump 2
Limit for
unclamped
ind. loads 1
Open load
Short to Vbb
detection 1
Temperature
sensor 1
Current
limit 2
Gate 2
protection
OUT1
1
Level shifter
Rectifier 2
Limit for
unclamped
ind. loads 2
GND
2
Signal GND
Open load
Short to Vbb
detection 2
Temperature
sensor 2
OUT2
7
R _O1
R _O2
GND
Load
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 15
2003-Oct-01