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PDF HV7355K6-G Data sheet ( Hoja de datos )
| Número de pieza | HV7355K6-G | |
| Descripción | Ultrasound Pulser | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HV7355K6-G (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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Supertex inc.
HV7355
Eight Channel, High Speed, Unipolar,
Ultrasound Pulser 1.5A 150V
Features
►► HVCMOS technology for high performance
►► High density integrated ultrasound transmitter
►► 0 to +150V output voltage
►► ±1.5A source and sink current (min.)
►► ±300mA current in CW mode
►► Up to 18MHz operating frequency
►► Matched delay times
►► Built-in gate driver floating voltage regulator
►► 2.5 to 3.3V CMOS logic interface
Application
►► Portable medical ultrasound imaging
►► Piezoelectric transducer drivers
►► NDT ultrasound transmission
►► Pulse waveform generator
General Description
The Supertex HV7355 is an eight-channel, unipolar, high voltage,
high-speed pulse generator. It is designed for medical ultrasound
applications. This high voltage and high speed integrated circuit can
also be used for other piezoelectric, capacitive or MEMS sensors in
ultrasonic nondestructive detection and sonar ranger applications.
The HV7355 consists of a controller logic interface circuit, level
translators, MOSFET gate drivers and high current P-channel and
N-channel MOSFETs as the output stage for each channel.
The output stages of each channel are designed to provide peak
output currents over ±1.5A for pulsing, when MC = 1, with up to 150V
swings. When MC = 0, all the output stages drop the peak current
to ±500mA for low-voltage CW mode operation to save power. This
direct coupling topology of the gate driver not only saves one high
voltage capacitor per channel, but also makes the PCB layout easier.
Typical Application Circuit
+3.3V
+5.0V
+5.0 to 150V
+3.3V
Logic
VLL AVDD
EN PWR
MC CWD
IN0
Q0
VDD
CPF
VSS
VDD
LR
VPP
LT
VDD
VPF
VDD
LT
IN7
SET
LE
CS
SCK
Q[7:0]
Q7
Data Latch
VDD
LT
VDD
LT
VPP
VPF
VDD
Shift Reg.
SUB
Q7 D0
SDO
SDI
VSUB
GND
VSS
VPP
VPF
TX0
RGND
VPP
TX7
RGND
RGND
-5.0V
Doc.# DSFP-HV7355
D011314
X0
X7
Supertex inc.
www.supertex.com
1 page  
Output Timing Test Diagram
+3.3V
+5.0V
+5.0 to 150V
HV7355
+3.3V
Logic
VLL AVDD
EN PWR
MC CWD
IN0
Q0
VDD
CPF
VPP
VSS
VDD
LR
VPP
VPF
LT
VDD
LT
VPF
VDD
RGND
TX0
IN7
SET
LE
CS
SCK
VDD
LT
Q7
Q[7:0]
Data Latch
VDD
LT
Shift Reg.
SUB
Q7 D0
SDO
SDI
VSUB
GND
VPP
VPP
VPF
VDD
TX7
RGND
RGND
VSS
-5.0V
R1
INX
TXX
50%
tdrx tdfx
IOUT 90%
50%
0A
tr
10%
tf
Serial Data Interface Timing Diagram
SCK
t1 t2
t3 t4
t6
12378
t9
SDI
t5 t7
CS
SDO
t8
LE t10
Doc.# DSFP-HV7355
D011314
Supertex inc.
5 www.supertex.com
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HV7355K6-G.PDF ] | |
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