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PDF MD1213 Data sheet ( Hoja de datos )
| Número de pieza | MD1213 | |
| Descripción | High Speed Dual MOSFET Driver | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MD1213 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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MD1213
High Speed Dual MOSFET Driver
Features
► 6ns rise and fall time with 1000pF load
► 2.0A peak output source/sink current
► 1.2V to 5V input CMOS compatible
► 4.5V to 13V total supply voltage
► Smart logic threshold
► Low jitter design
► Two matched channels
► Outputs can swing below ground
► Low inductance package
► Thermally-enhanced package
Applications
► Medical ultrasound imaging
► Piezoelectric transducer drivers
► Nondestructive evaluation
► PIN diode driver
► CCD Clock driver/buffer
► High speed level translator
General Description
The Supertex MD1213 is a high speed, dual MOSFET driver. It is
designed to drive high voltage P and N-channel MOSFET transistors
for medical ultrasound and other applications requiring a high
output current for a capacitive load. The high-speed input stage of
the MD1213 can operate from 1.2V to 5.0V logic interface with an
optimum operating input signal range of 1.8V to 3.3V. An adaptive
threshold circuit is used to set the level translator switch threshold
to the average of the input logic 0 and logic 1 levels. The input logic
levels may be ground referenced, even though the driver is putting out
bipolar signals. The level translator uses a proprietary circuit, which
provides DC coupling together with high-speed operation.
The output stage of the MD1213 has separate power connections
enabling the output signal L and H levels to be chosen independently
from the supply voltages used for the majority of the circuit. As an
example, the input logic levels may be 0 and 1.8volts, the control logic
may be powered by +5.0V and –5.0V, and the output L and H levels
may be varied anywhere over the range of –5.0V to +5.0V. The output
stage is capable of peak currents of up to ±2.0A, depending on the
supply voltages used and load capacitance present.
The OE pin serves a dual purpose. First, its logic H level is used
to compute the threshold voltage level for the channel input level
translators. Secondly, when OE is low, the outputs are disabled, with
the A output high and the B output low. This assists in properly pre-
charging the AC coupling capacitors that may be used in series in the
gate drive circuit of an external PMOS and NMOS transistor pair.
Typical Application Circuit
VDD1
OE Level
Shifter
INA Level
Shifter
VDD2
+5V
VH 0.47µF
OUTA
3.3V CMOS
Logic Inputs
VSS2
VDD2
INB Level
Shifter
MD1213
Gnd VSS1
VSS2
10nF
VL
VH
10nF
OUTB
VL -5V
0.47µF
Supertex
TC6320
+100V
1µF
To Piezoelectric
Transducer
-100V
1µF
1 page  
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Single Supply Application Circuit
VDD1
OE Level
Shifter
INA Level
Shifter
VDD2
+12V
VH 0.47µF
OUTA
3.3V CMOS
Logic Inputs
VSS2
VDD2
INB Level
Shifter
MD1213
Gnd VSS1
VSS2
10nF
VL
VH
10nF
OUTB
VL
Supertex
TC6320
MD1213
+100V
1µF
To Piezoelectric
Transducer
-100V
1µF
Timing Diagram
3.3V
IN
0V
OUT
0V
Simplified Block Diagram
50%
50%
tPLH
90%
10%
tr
tPHL
90%
10%
tf
VDD1
VDD2
VH
OE MD1213
INA OUTA
INB OUTB
GND VSS1
VSS2
VL
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet MD1213.PDF ] | |
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