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Número de pieza | BTS6142D | |
Descripción | Smart High-Side Power Switch | |
Fabricantes | Infineon Technologies | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de BTS6142D (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! Data Sheet, V1.0, October 2005
BTS 6142D
Smart High-Side Power Switch
PROFET
One Channel, 12 mΩ
Automotive Power
Never stop thinking.
1 page Smart High-Side Power Switch
BTS 6142D
Overview
1 Overview
The BTS 6142D is a one channel high-side power switch (12 mΩ) in P-TO-252-5-1
power package providing embedded protective functions including ReverSaveTM.
ReverSaveTM is a protection feature that causes the power transistors to switch on in
case of reverse polarity. As a result, the power dissipation is reduced.
The BTS 6142D has a current controlled input and offers a diagnostic feedback with load
current sense. The design is based on Smart SIPMOS chip on chip technology.
1.1 Block Diagram
logic IC
Rbb
IN
IIN
VIS
IS
VIN IIS
RIS
driver
logic
voltage sensor
over
temperature
gate control
&
charge pump
clamp for
inductive load
current
limitation
load current
sense
forward voltage drop detection
Figure 1 Block Diagram
base chip
Vbb
T
OUT
IL
Overview .emf
Data Sheet
5 V1.0, 2005-10-25
5 Page Smart High-Side Power Switch
BTS 6142D
Power Stages
4.1.2 Output On-State Resistance
The on-state resistance RDS(ON) depends on the supply voltage as well as the junction
temperature Tj. Figure 6 shows these dependencies for the typical on-state resistance.
The on-state resistance in reverse polarity mode is described in Section 4.2.3.
5 21
PΩ
Vbb = 12 V
W\S
5 21
PΩ
Tj = 25°C
W\S
&
9
Figure 6
7M
Typical On-State Resistance
9 EE
At small load currents the resistance is artificially increased to improve current sense
accuracy. Therefore the forward voltage drop VON at small load currents is no more
proportional to the load current IL , but is controlled by an internal “two level controller”
to remain clamped to a defined value VON(NL). Figure 7 shows the dependency for a
typical device.
Data Sheet
11 V1.0, 2005-10-25
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet BTS6142D.PDF ] |
Número de pieza | Descripción | Fabricantes |
BTS6142D | Smart High-Side Power Switch | Infineon Technologies |
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