Datasheet, Rev. 1.0, Aug. 2008
BTS50080-1TMC
Smart High-Side Power Switch
PROFET™
One Channel
Automotive Power
Smart High-Side Power Switch
BTS50080-1TMC
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 BTS50080-1TMC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overload Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short circuit impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection - Reversave™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overvoltage 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, 2008-08-22
Smart High-Side Power Switch
PROFET™
One Channel
BTS50080-1TMC
1
Features
•
•
•
•
•
•
•
•
•
Overview
Enhanced specification of 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-TO220-7-4
5.5 .. 38 V
39 V
16 mΩ
9.5 A
37.5 A
90 A
6 µA
V
bb(on)
Minimum overvoltage protection
V
ON(CL)
Maximum on-state resistance at 150°C
R
DS(ON)
Nominal load current
I
L(nom)
Load current (ISO)
I
L(ISO)
Minimum current limitation
I
L6(SC)
Maximum stand-by current for whole device with load at
T
j
= 25 °C
I
bb(OFF)
Operating voltage
The BTS50080-1TMC is a one channel high-side power switch in PG-TO220-7-4 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 BTS50080-1TMC 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
BTS50080-1TMC
Datasheet
Package
PG-TO220-7-4
3
Marking
S50080C
Rev. 1.0, 2008-08-22
Smart High-Side Power Switch
BTS50080-1TMC
Overview
Protective Functions
•
•
•
•
•
•
•
•
•
•
Reversave™, channel switches on in case of reverse polarity
Reverse battery protection without external components
Short circuit protection with latch
Overload protection
Multi-step current limitation
Thermal shutdown with restart
Overvoltage 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, overtemperature
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, 2008-08-22
Smart High-Side Power Switch
BTS50080-1TMC
Block Diagram and Terms
2
2.1
Block Diagram and Terms
Block Diagram
logic IC
voltage sensor
over
temperature
R
bb
base chip
V
bb
T
IN
ESD
clamp for
inductive load
current
limitation
I
IN
V
IS
V
IN
IS
I
IS
R
IS
driver
logic
gate control
&
charge pump
load current
sense
OUT
I
L
LOAD
Overview .emf
forward voltage drop detection
Figure 1
Block Diagram
2.2
Terms
Following figure shows all terms used in this data sheet.
V
bb
V
bIN
V
bIS
I
IN
I
bb
VBB
V
ON
IN
V
IN
R
IN
I
IS
V
IS
BTS50080-1TMC
IS
OUT
I
L
V
OUT
R
IS
Terms.emf
Figure 2
Terms
Datasheet
5
Rev. 1.0, 2008-08-22
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