PROFET
®
BTS 640 S2
Semiconductor Group Page 1 of 15 2003-Oct-01
Smart Sense High-Side
Power Switch
Features
•
Short circuit protection
•
Current limitation
•
Proportional load current sense
•
CMOS compatible input
•
Open drain diagnostic output
•
Fast demagnetization of inductive loads
•
Undervoltage and overvoltage shutdown with
auto-restart and hysteresis
•
Overload protection
•
Thermal shutdown
•
Overvoltage protection including load dump (with
external GND-resistor)
•
Reverse battery protection (with external GND-resistor)
•
Loss of ground and loss of V
bb
protection
•
Electrostatic discharge (ESD) protection
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, proportional sense of load current, monolithically integrated in Smart SIPMOS

technology.
Providing embedded protective functions.
Block Diagram

IN
ST
ESD Logic
Voltage
sensor
Voltage
source
Charge pump
Level shifter
Temperature
sensor
Rectifier
Limit for
unclamped
ind. loads
Gate
protection
Current
limit
3
1
Signal GND
GND
2
V
Logic
Overvoltage
protection
+ V
bb
PROFET

OUT
4
6, 7
Load GND
Load
GND
R
O
Current
Sense
Output
Voltage
detection
R
IS
IS5
I
IS
I
L


Product Summary
Operating voltage
V
bb(on)
5.0 ... 34 V
On-state resistance R
ON
30 mΩ
Load current (ISO) I
L(ISO)
12.6 A
Current limitation I
L(SCr)
24 A
Package
TO220-7-11 TO263-7-2 TO220-7-12




1 1 1
Standard (staggered) SMD Straight