BTS443P Datasheet, PDF (1/13 Pages) Infineon Technologies AG – Smart Highside Power Switch

PROFET® Data Sheet BTS 443 P
Smart Highside Power Switch
Reversave
Product Summary
• _{Reverse battery protection by self turn on of}
Operating voltage
power MOSFET
On-state resistance
Features
• _{Short circuit protection}
• _{Current limitation}
Load current (ISO)
Current limitation
• _{Overload protection}
Package
• _{Thermal shutdown}
• _{Overvoltage protection (including load dump)}
TO-252-5-1
• _{Loss of ground protection}
• _{Loss of Vbb protection (with external diode for}
charged inductive loads)
• _{Very low standby current}
• _{Fast demagnetisation of inductive loads}
• _{Electrostatic discharge (ESD) protection}
• _{Optimized static electromagnetic compatibility (EMC)}
Vbb(on) 5.0 ... 36 V
RON
16 mΩ
IL(ISO)
25 A
IL(SCr)
65 A
Diagnostic Function
• _{Proportional load current sense (with defined fault signal during thermal shutdown)}
Application
• _{Power switch with current sense diagnostic feedback for 12V and 24 V DC grounded loads}
• _{All types of resistive, capacitive and inductive loads (no PWM with inductive loads)}
• _{Replaces electromechanical relays, fuses and discrete circuits}
General Description
N channel vertical power FET with charge pump, current controlled input and diagnostic feedback with load
current sense, integrated in Smart SIPMOS^ chip on chip technology. Providing embedded protective functions.
Voltage
source
Voltage
sensor
2 _IN
ESD
Logic
R _bb
Overvoltage Current
Gate
protection
limit
protection
Charge pump
Level shifter
Rectifier
Limit for
unclamped
ind. loads
Output
Voltage
detection
Current
Sense
3 & Tab
+ Vbb
OUT ^{1, 5}
I_L
Load
I _IN
Temperature
sensor
V_IN
V_IS
Logic GND
I _IS
IS
4
RIS
PROFET^
Load GND
Infineon Technologies AG
Page 1 of 13
2003-Oct-01