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PDF MD0105 Data sheet ( Hoja de datos )
| Número de pieza | MD0105 | |
| Descripción | Four-Channel High Voltage Protection T/R Switch | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Supertex inc.
Four-Channel
High Voltage Protection T/R Switch
MD0105
Features
►► Up to ±130V input voltage protection
►► Low on resistance - 15Ω typical
►► Fast switching speed
►► Four electrically isolated channels
►► No external supplies needed
Applications
►► Medical ultrasound imaging
►► NDT applications
►► Fast resettable fuses
►► High side switches
►► Data acquisition
General Description
The Supertex MD0105 is a high voltage current limiting protection
device. It is designed to protect a low noise receiver from the high
voltage transmit pulses in ultrasound applications and is commonly
referred to as a T/R (transmit and receive) switch.
The MD0105 can be considered as a normally closed switch with
a typical switch resistance of 15Ω, allowing small signals to pass.
Once the voltage drop across the two terminals exceeds a nominal
value of ±2.0V, the device will start to turn off. In the off state, the
MD0105 can withstand up to ±130V across its terminals. A small
amount of current, typically 200µA, is allowed to flow through.
The MD0105 is not limited to just ultrasound applications. It can
also be used for resettable fuses to protect power lines, output
short circuit protection, and data acquisition. The MD0105 is
available in an 18-Lead 5x5mm DFN package as a four-channel
device.
Typical Application Circuit
+130V
Logic
Control
and
Signal
Processing
Transmitter
TX
-130V
RX
Receiver
B MD0105 A
T/R Switch
Piezo
Transducers
High Voltage
Switches
Doc.# DSFP-MD0105
C070213
Supertex inc.
www.supertex.com
1 page  
18-Lead DFN Package Outline (K6)
5.00x5.00mm body, 1.00mm height (max), 0.50mm pitch
D D2
MD0105
Note 1
(Index Area
D/2 x E/2)
E
Note 1
(Index Area
D/2 x E/2)
E2
1
Top View
A3
A
A1
Side View
b
θ
Seating
Plane
L1
Note 2
e
Bottom View
View B
1
View B
Note 3
L
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
MIN 0.80 0.00
0.18 4.85*
Dimension
(mm)
NOM
0.90
0.02
0.20
REF
0.25
5.00
MAX 1.00 0.05
0.30 5.15*
JEDEC Registration MO-229, Variation VJJD-2, Issue C, Aug. 2003.
* This dimension is not specified in the JEDEC drawing.
† This dimension differs from the JEDEC drawing.
Drawings not to scale.
Supertex Doc. #: DSPD-18DFNK65X5P050, Version A013111.
D2
4.20†
4.35†
4.45†
E
4.85*
5.00
5.15*
E2
3.50†
3.65†
3.75†
e
0.50
BSC
L
0.30†
0.40†
0.50†
L1
0.00*
-
0.15
θ
0O
-
14O
(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)
©2013 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.
Supertex inc.
Doc.# DSFP-MD0105
C070213
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
5 www.supertex.com
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet MD0105.PDF ] | |
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