Smart High-Side Power Switch
BTS50050-1EGA
1
2
2.1
2.2
3
3.1
3.2
4
4.1
4.2
4.3
4.4
5
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
6
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
7
7.1
7.2
7.3
7.4
7.5
8
8.1
8.2
9
10
Overview
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Block Diagram and Terms
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Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin Configuration
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Pin Assignment BTS50050-1EGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
General Product Characteristics
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Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Stages
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Input Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output On-State Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Switching losses for resistive loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Inductive Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inverse Operation Capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Undervoltage shutdown + restart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: Power Stages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Protection Functions
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Short Circuit Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Circuit Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Temperature Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Infineon® INTELLIGENT LATCH - fault acknowledge and latch reset . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Polarity Protection - ReverSaveTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ESD Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Ground Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Loss of Load Protection, Loss of Vbb Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: Protection Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Functions
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Diagnosis Enable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis during ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis during OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnosis Disable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Application schematic
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Hints for PCB layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Package Outlines
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Revision History
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Datasheet
2
V1.0, 2009-04-06
Smart High-Side Power Switch
PROFET™
BTS50050-1EGA
1
Features
•
•
•
•
•
•
•
•
•
•
•
Overview
Part of scalable product family
3.3 and 5V compatible, ground referenced CMOS compatible inputs
Optimized electromagnetic compatibility (EMC)
Very low standby current
Stable behavior at under-voltage
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)
AEC qualified
PG-DSO-12-16
Operating voltage range
Minimum power stage over-voltage protection
Typical on-state resistance at
T
j
= 25°C
Maximum on-state resistance at
T
j
= 150°C
Typical nominal load current
Minimum short circuit shutdown Threshold (SCT)
V
bb(ext)
V
DS(CL)
R
DS(ON)
R
DS(ON)
6 .. 28V
42 V
5 mΩ
10 mΩ
16 A
100 A
10 µA
I
L(nom)
I
L(SC)high
Maximum stand-by current for whole device with load for
T
j
≤
85°C
I
bb(OFF)
Description
The BTS50050-1EGA is a single channel high-side power switch in PG-DSO-12-16 package providing embedded
protective functions including ReverSave
TM
and Infineon
INTELLIGENT LATCH.
The power transistor is built by a N-channel vertical power MOSFET with charge pump. The design is based on
Smart power chip on chip technology.
The BTS50050-1EGA 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.
The Infineon
ENHANCED SENSE pin IS provides a sophisticated diagnostic feedback signal including current
sense functionality, open load in ON-state (via sense signal) and open load and short to battery in OFF-state.
Diagnostic reporting can be enabled and disabled by the DEN-Pin in ON-state and OFF-state. In OFF-state, open
load detection can also be disabled by the DEN-Pin to optimize stand-by current.
Type
BTS50050-1EGA
Datasheet
Package
PG-DSO-12-16
3
Marking
BTS 50050A
V1.0, 2009-04-06
Smart High-Side Power Switch
BTS50050-1EGA
Overview
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
Under voltage 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
•
•
•
•
•
•
Enable function for diagnosis and reporting
Provides capability for muliplexing of the reporting signal from multiple devices by DEN pin.
Provides analog sense signal of load current in normal operation mode
Provides defined fault current signal in case of overload, over temperature and short circuit to ground
Open load detection in ON-state by load current sense
Open load and short to battery detection
In ON-state:
In OFF-State:
Applications
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•
•
µC compatible high-side power switch with diagnostic feedback for 12 V system grounded loads
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
4
V1.0, 2009-04-06
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