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PDF BTS5230GS Data sheet ( Hoja de datos )
| Número de pieza | BTS5230GS | |
| Descripción | Smart High-Side Power Switch PROFET | |
| Fabricantes | Infineon Technologies | |
| Logotipo |  |
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Data Sheet, V2.0, June 2005
BTS 5230GS
Smart High-Side Power Switch
PROFET
Two Channels, 140 mΩ
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Smart High-Side Power Switch
BTS 5230GS
Overview
1 Overview
The BTS 5230GS is a dual channel high-side power switch (two times 140 mΩ) in
P-DSO-14-18 package providing embedded protective functions.
The Enhanced IntelliSense pins IS1 and IS2 provide a sophisticated diagnostic feedback
signal including current sense function and open load in off state. The diagnosis signals
can be switched on and off by the sense enable pin SEN.
An integrated ground resistor as well as integrated resistors at each input pin (IN1, IN2,
SEN) reduce external components to a minimum.
The power transistor is built by a N-channel vertical power MOSFET with charge pump.
The inputs are ground referenced CMOS compatible. The device is monolithically
integrated in Smart SIPMOS technology.
1.1 Block Diagram
channel 1
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IN1
IS1
SEN
internal
power
supply
ESD
protection
logic
load current
sense
clamp for
inductive load
DgaatteaScohneterot4l U.com
&
charge pump
multi step
open load
load current
detection
limitation
temperature
sensor
VBB
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OUT1
channel 2
IN2
IS2
control and protection circuit
equivalent to
channel 1
Figure 1 Block Diagram
RGND
GND
OUT2
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5 V2.0, 2005-06-13
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Smart High-Side Power Switch
BTS 5230GS
Block Description and Electrical Characteristics
A high signal at the input pin causes the power DMOS to switch on with a dedicated
slope, which is optimized in terms of EMC emission.
IN
VOUT
90%
70%
30%
10%
tON
dV /dtON
Figure 6 Switching a Load (resistive)
tOFF t
70%
dV /dtON
30%
t
SwitchOn.emf
4.1.3 Inductive Output Clamp
When switching off inductive loads with high-side switches, the voltage VOUT drops
below ground potenial, because the inductance intends to continue driving the current.
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Vbb
VBB
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GND
IL
OUT VOUT
L,
RL
OutputClamp .em
Figure 7 Output Clamp (OUT1 and OUT2)
To prevent destruction of the device, there is a voltage clamp mechanism implemented
that keeps that negative output voltage at a certain level (VOUT(CL)). See Figure 7 and
Figure 8 for details. Nevertheless, the maximum allowed load inductance is limited.
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Data Sheet
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11 V2.0, 2005-06-13
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11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet BTS5230GS.PDF ] | |
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