PROFET
®
BTS 728 L2
Semiconductor Group 1 of 14 2003-Oct-01
Smart High-Side Power Switch
Two Channels: 2 x 60mΩ
Status Feedback
Product Summary Package

Operating Voltage V
bb(on)
4.75...41V
Active channels one two parallel
On-state Resistance R
ON
60mΩ 30mΩ
Nominal load current I
L(NOM)
4.0A 6.0A
Current limitation I
L(SCr)
17A 17A
General Description
• N channel vertical power MOSFET with charge pump, ground referenced CMOS compatible input and
diagnostic feedback, monolithically integrated in Smart SIPMOS

technology.
• Providing embedded protective functions
Applications
• µC compatible high-side power switch with diagnostic feedback for 5V, 12V and 24V grounded loads
• All types of resistive, inductive and capacitve loads
• Most suitable for loads with high inrush currents, so as lamps
• Replaces electromechanical relays, fuses and discrete circuits
Basic Functions
• Very low standby current
• CMOS compatible input
• Improved electromagnetic compatibility (EMC)
• Fast demagnetization of inductive loads
• Stable behaviour at undervoltage
• Wide operating voltage range
• Logic ground independent from load ground
Protection Functions
• Short circuit protection
• Overload protection
• Current limitation
• Thermal shutdown
• Overvoltage protection (including load dump) with external
resistor
• Reverse battery protection with external resistor
• Loss of ground and loss of V
bb
protection
• Electrostatic discharge protection (ESD)
Diagnostic Function
• Diagnostic feedback with open drain output
• Open load detection in ON-state
• Feedback of thermal shutdown in ON-state





Block Diagram
P-DSO-20-9
Vbb
Logic
Channel
1
Logic
Channel
2
IN1
ST1
IN2
ST2
GND
Load 1
Load 2
PROFET
OUT 1
OUT 2