H i g h C u r r e n t P R O F E T
TM
BTS50040-2SFA
Smart High-Side Power Switch
Dual Channel, 2x 4mΩ
Datasheet
High Current PROFET
TM
V2.0, 2016-02-02
Automotive
Smart High-Side Power Switch
BTS50040-2SFA
1
2
2.1
2.2
3
3.1
3.2
4
4.1
4.2
4.3
4.4
5
5.1
5.1.1
5.1.2
5.1.3
5.1.4
5.2
5.3
5.3.1
5.3.2
5.3.3
5.3.4
5.3.5
5.3.6
5.4
5.4.1
5.4.2
6
6.1
7
7.1
7.2
8
9
Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Block Diagram and Terms
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Assignment BTS50040-2SFA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Product Characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Inductive Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverse Operation Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Infineon® INTELLIGENT LATCH - fault acknowledge and latch reset . . . . . . . . . . . . . . . . . . . . . .
Short Circuit and Overtemperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection - ReverSave
TM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Undervoltage shutdown and restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Load Protection, Loss of VS Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sense Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis during ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
5
7
7
9
10
10
10
11
11
13
13
14
14
15
16
16
17
17
18
18
19
Electrical characteristics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Electrical Characteristics Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Application schematic
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Hints for PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Package Outlines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Revision History
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Datasheet
High Current PROFET
TM
1
V2.0, 2016-02-02
Smart High-Side Power Switch
Dual Channel, 2x 4mΩ
BTS50040-2SFA
1
Features
•
•
•
•
•
•
•
•
•
•
Overview
3.3 and 5V compatible, ground referenced CMOS compatible inputs
for each channel
Optimized electromagnetic compatibility (EMC)
Very low standby current
Slew rate configurable via external circuitry or signal
Secure load turn-off while device ground disconnected
ReverSave
TM
- Reverse battery protection without external
components
Inverse load current capability
Infineon
®
INTELLIGENT LATCH
Green Product (RoHS compliant) and halogen free package
AEC qualified
PG-DSO-36-44
Extended Supply Voltage Range for Operation
Logic Supply Voltage
Minimum power stage over-voltage protection
Typical on-state resistance at
T
j
= 25°C (channel 0, 1)
Maximum on-state resistance at
T
j
= 150°C (channel 0, 1)
Typical nominal load current per channel, both channel active
Minimum short circuit shutdown threshold at
T
j
= -40°C
V
S(ext)
V
DD
V
DS(CL))
R
DS(ON)
R
DS(ON)
I
L(nom)
I
L(SC)
6 .. 28V
4.5 .. 5.5 V
40 V
4.0 mΩ
8.2 mΩ
11 A
130 A
12 µA
Maximum stand-by current for whole device with load for
T
j
≤
85°C
I
S(OFF)
Description
The BTS50040-2SFA is a dual channel high-side power switch in PG-DSO-36-44 package providing embedded
protective functions including ReverSave
TM
and Infineon
®
INTELLIGENT LATCH. It is most suitable for loads with
high inrush current, such as glow plugs, PTC heaters, or lamps.
The power transistors are built by a dual N-channel vertical power MOSFET with charge pump. The design is
based on Smart power chip by chip technology.
The BTS50040-2SFA has ground referenced CMOS compatible inputs.
ReverSave
TM
is a protection feature that causes the power transistor to switch on in case of reverse polarity. As
a result, the power dissipation is reduced.
Infineon
®
INTELLIGENT LATCH ensures a latched switch-off and reporting in case of fault condition.
Type
BTS50040-2SFA
Datasheet
High Current PROFET
TM
Package
PG-DSO-36-44
1
Marking
S50040-2A
V2.0, 2016-02-02
Smart High-Side Power Switch
BTS50040-2SFA
Overview
Power Stage
•
Four different slew rates selectable via pin SRS0 and SRS1
Protective Functions
•
•
•
•
•
•
•
•
•
•
Short circuit protection with latch
Thermal shutdown with latch
Infineon
®
INTELLIGENT LATCH - reset able latch resulting from protective switch-off
ReverSave
TM
- Reverse battery protection by self turn on of power MOSFET
Inverse load current capability - Inverse operation function
Stable behavior at under voltage on
V
S
or
V
dd
Over voltage protection (including load dump)
Loss of ground protection
Loss of Vs protection (with external diode for charged inductive loads)
Electrostatic discharge protection (ESD)
Diagnostic Functions
•
•
•
•
•
Multiplexed proportional load current sense signal (IS)
Seperate enable function for current sense signal of each channel via pin SEN0 and SEN1
Provides analog sense signal of load current in normal operation mode
Provides low signal in case of over temperature and short circuit to ground
Open load detection in ON-state by load current sense
Applications
•
•
•
•
µC compatible high-side power switch with diagnostic feedback for 12 V system grounded loads in automotive
applications
All types of resistive, inductive and capacitive loads
Most suitable for loads with high inrush currents, such as glow plugs, PTC heaters, or lamps
Replaces electromechanical relays, fuses and discrete circuits
Datasheet
High Current PROFET
TM
2
V2.0, 2016-02-02
Smart High-Side Power Switch
BTS50040-2SFA
Block Diagram and Terms
2
2.1
Block Diagram and Terms
Block Diagram
control chip
Logic
supply
ESD protection
IN1
IN0
SRS0
SRS1
SEN0
SEN1
IS
GND
power chip
V
dd
analog supply
over temperature
V
ON(CL)
V
OUT(CL)
Vs
T
T
driver
logic
gate control
&
charge pump
over
overcurrent
current
switch-off
switch-off
load current sense
0
channel 1
channel 0
1
OUT1
OUT0
Overview.emf
Figure 1
Block Diagram
2.2
V
S
Terms
I
S
I
dd
V
dd
V
SRS0
V
SRS1
V
IN0
V
IN1
I
SRS0
I
SRS1
I
IN0
I
IN1
I
SEN0
V
SEN0
I
SEN1
V
SEN1
GND
I
GND
Terms.emf
V
dd
SRS0
SRS1
IN0
IN1
SEN0
Vs
OUT0
OUT1
I
L0
I
L1
V
DS1
V
OUT 1
V
DS0
V
OUT 0
IS
SEN1
I
IS
V
IS
R
IS
Figure 2
Terms
3
V2.0, 2016-02-02
Datasheet
High Current PROFET
TM
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