Smart High-Side Power Switch
BTS50080-1TMB
Table of Contents
Table of Contents
1
2
2.1
2.2
3
3.1
3.2
4
4.1
4.2
5
5.1
5.2
5.3
5.3.1
5.4
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
7
7.1
8
9
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram and Terms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Assignment BTS50080-1TMB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Product Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Power Stages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Output Inductive Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maximum Load Inductance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Protection Functions
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over-Load Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short circuit impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection - Reversafe® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over-Voltage Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of V
bb
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15
15
16
17
18
18
18
19
Diagnosis
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Datasheet
2
Rev. 1.0, 2008-01-23
Smart High-Side Power Switch
PROFET
®
One Channel
BTS50080-1TMB
1
Features
•
•
•
•
•
•
•
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•
Overview
Part of scalable product family
Load current sense
ReverSave
®
Very low standby current
Current controlled input pin
Improved electromagnetic compatibility (EMC)
Fast demagnetization of inductive loads
Stable behavior at under-voltage
Green Product (RoHS compliant)
AEC qualified
PG-TO220-7-12
Operating voltage
Over-voltage protection
On-State resistance at 150°C
Nominal load current
Load current (ISO)
Current limitation
Stand-by current for whole device with load
V
bb(on)
V
ON(CL)
R
DS(ON)
I
L(nom)
I
L(ISO)
I
L6(SC)
I
bb(OFF)
5.5 .. 38 V
39 V
16 mΩ
9.5 A
37.5 A
90 A
6 µA
The BTS50080-1TMB is a one channel high-side power switch in PG-TO220-7-12 package providing embedded
protective functions.
The power transistor is built by a N-channel vertical power MOSFET with charge pump. The design is based on
Smart SIPMOS chip on chip technology.
The BTS50080-1TMB has a current controlled input and offers a diagnostic feedback with load current sense and
a defined fault signal in case of overload operation, overtemperature shutdown and/or short circuit shutdown.
Type
BTS50080-1TMB
Datasheet
Package
PG-TO220-7-12
3
Marking
S50080B
Rev. 1.0, 2008-01-23
Smart High-Side Power Switch
BTS50080-1TMB
Overview
Protective Functions
•
•
•
•
•
•
•
•
•
•
ReverSave
®
, channel switches on in case of reverse polarity
Reverse battery protection without external components
Short circuit protection with latch
Over-load protection
Multi-step current limitation
Thermal shutdown with restart
Over-voltage protection (including load dump)
Loss of ground protection
Loss of
V
bb
protection (with external diode for charged inductive loads)
Electrostatic discharge protection (ESD)
Diagnostic Functions
•
•
Proportional load current sense (with defined fault signal in case of overload operation, over temperature
shutdown and/or short circuit shutdown)
Open load detection in ON-state by load current sense
Applications
•
•
•
•
µC compatible high-side power switch with diagnostic feedback for 12 V grounded loads
All types of resistive, inductive and capacitive loads
Most suitable for loads with high inrush currents, so as lamps
Replaces electromechanical relays, fuses and discrete circuits
Datasheet
4
Rev. 1.0, 2008-01-23
PCB Design
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EEWORLD
