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PDF MD0107 Data sheet ( Hoja de datos )
| Número de pieza | MD0107 | |
| Descripción | Auto Damping Device | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MD0107 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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Supertex inc.
MD0107
Quad High Voltage, Auto Damping Device
Features
►► Up to ±130V input voltage protection
►► 35Ω typical ON resistance
►► Fast switching speed
►► No external supplies needed
Applications
►► Medical ultrasound imaging
►► NDT applications
►► Fast resettable fuses
►► High side switches
►► Data acquisition
Block Diagram
VPP
General Description
The MD0107 can be considered as a normally closed switch
with a typical switch resistance of 35Ω. In this state, the
MD0107 ensures that any leakage currents are shunted to
ground, while maintaining a low voltage drop. This low voltage
level is beneficial as it ensures that the anti-parallel diodes
in the transmit path remain off during the receive cycle of the
system. Thus the anti-parallel diodes more effectively block the
small signals and prevent transmitter noise from contaminating
the receive signal.
During operation of the pulser, the MD0107 switch opens and
thus presents a high impedance to the transmitter pulse. The
switch opens as soon as the voltage across it exceeds +/-2V and
can withstand up to +/-130V. In this off-state, the MD0107 has
very little effect on the transmit pulses or the power dissipated
by the pulser.
The impedance of the MD0107, when the voltage across it is
low, is suitable for terminating transmission lines. Where the line
impedance is higher than the nominal 35Ω of the MD0107, a
series resistor can be added; for example terminating a ~75Ω
line can be effectively achieved by adding a 39Ω resistor. Without
correct line termination, reflections can cause higher signal loss
and degrade image quality in ultrasound systems.
+130V
TX
RTZ Pulser
VNN
RX
Receiver
MD0107
Auto Damper
MD0105
T/R Switch
-130V
X
Doc.# DSFP-MD0107
NR012714
Supertex inc.
www.supertex.com
Free Datasheet http://www.datasheet4u.net/
1 page  
12-Lead DFN Package Outline (K6)
4.00x4.00mm body, 1.00mm height (max), 0.50mm pitch
12 D
D2
MD0107
12
Note 1
(Index Area
D/2 x E/2)
1
Top View
A A3
A1
Side View
E E2
View B
θ
Seating
Plane
L1
Note 2
Note 1
(Index Area
D/2 x E/2)
b e1
Bottom View
Note 3
L
View B
Notes:
1. A Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/identifier; an embedded metal marker; or
a printed indicator.
2. Depending on the method of manufacturing, a maximum of 0.15mm pullback (L1) may be present.
3. The inner tip of the lead may be either rounded or square.
Symbol
A A1 A3 b
D D2 E E2 e
L L1 θ
Dimension
(mm)
MIN
NOM
MAX
0.80
0.90
1.00
0.00 0.18 3.85
0.02
0.20
REF
0.25
4.00
0.05 0.30 4.15
3.19 3.85
3.34 4.00
3.44 4.15
2.29 0.30 0.00
2.44
0.50
BSC
0.40
-
2.54 0.50 0.15
0O
-
14O
Drawings not to scale.
Supertex Doc.#: DSPD-12DFNK64X4P050, Version A030210.
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline
information go to http://www.supertex.com/packaging.html.)
Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives
an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability
to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and
specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com)
©2014 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.
Supertex inc.
Doc.# DSFP-MD0107
NR012714
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
5 www.supertex.com
Free Datasheet http://www.datasheet4u.net/
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MD0107.PDF ] | |
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