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PDF HV7331K6-G Data sheet ( Hoja de datos )
| Número de pieza | HV7331K6-G | |
| Descripción | Ultrasound RTZ Pulser | |
| Fabricantes | Supertex | |
| Logotipo |  |
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Supertex inc.
HV7331
Four Channel, High Speed ±70V 2.0A
Ultrasound RTZ Pulser
Features
►► HVCMOS technology for high performance
►► High density integrated ultrasound transmitter
►► 0 to ±70V output voltage
►► ±2.0A source and sink minimum pulse current
►► Up to 20MHz operation frequency
►► ±2.5ns matched delay times
►► 2.5 to 5.0V CMOS logic interface
►► Built-in output drain diode and bleed resistors
►► CW/RTZ Doppler quick switching
►► Two damping mode options
Applications
►► Portable medical ultrasound imaging
►► Piezoelectric transducer drivers
►► NDT ultrasound transmission
►► Pulse waveform generator
General Description
The Supertex HV7331 is a four-channel, monolithic, high voltage,
high speed pulse generator with built in fast return to zero damping
FETs. This high voltage and high-speed integrated circuit is
designed for portable medical ultrasound imaging devices, and can
also be used for NDT applications.
The HV7331 consists of a controller logic interface circuit, level
translators, MOSFET gate drives, and high current power P-channel
and N-channel MOSFETs as the output stage for each channel.
The peak output currents of each channel are guaranteed to be
over 2.0A with up to a ±70V pulse swing. The integrated regulators
for the gate drivers not only saves two floating voltage supplies, but
also makes the PCB layout easier. The split common source for
the P or N damping MOSFETs provide pulse or CW Doppler mode
quick switch-over for cost and power savings.
Typical Application Circuit
+2.5 to 3.3V +5.0V
+5.0 to +70V
EN
LR
CW/RTZ
PIN1
NIN1
AGND
Doc.# DSFP-HV7331
B011513
VLL
VDD
CPF VPP
VPP
VPF
LRP
VSS
VPP
RGND
Logic
& Level
Translator
VPF
1 of 4-Channels Shown
VNF
VNN RGND
VGN
VNN
RGN
RGP
SUB
VGP
VNF
DGND VSS
VSUB
VDD
LRN
CNF
VNN
-5.0V
-5.0 to -70V
VGP
VGN
RGND
HVOUT
TX1
CGP
RGP
CGN
RGN
+VCW
-VCW
CW/RTZ
Supertex inc.
www.supertex.com
1 page  
HV7331
AC Electrical Characteristics (cont.)
(Operating conditions, unless otherwise specified, VLL = +3.3V, VADD = VDD = +5.0V, VSS = -5.0V ,VPP = +70V, VNN = -70V, TA = 25°C)
Sym Parameter
Min Typ Max Units Conditions
fOUT
HD2
Output frequency range
Second harmonic distortion
- - 20 MHz
100Ω load
- -40 - dB
tEN_ON
tEN_OFF
tLR_ON
tLR_OFF
tdrp1
tdfp1
tdrn1
tdfn1
tdrp2
tdfp2
tdrn2
tdfn2
ΔtDELAY
tJCW
Delay on mode change
Chip disable time
Linear regulators enable time
Linear regulators disable time
Pulser delay time on P-rise
Pulser delay time on P-fall
Pulser delay time on N-rise
Pulser delay time on N-fall
CWD delay time on P-rise
CWD delay time on P-fall
CWD delay time on N-rise
CWD delay time on N-fall
Delay time matching
Delay jitter on rise or fall
-
-
-
-
8.0
5.0
8.0
5.0
6.0
6.0
6.0
6.0
-
-
200
2.0
200
2.0
-
-
-
-
-
-
-
-
±2.5
13
300 μs
4.0 μs CPF,
CNF capacitor 0.47μF per pin,
300 μs 50% to 90%
4.0 μs
13 ns
10 ns CW/RTZ = 0
13 ns R1 = R2 = 1.0Ω to GND
10 ns
12 ns
12 ns CW/RTZ = 1
12 ns R1 = R2 = 1.0Ω to GND
12 ns
- ns P to N, channel to channel
-
ps
VRGP/VRGN = ±5.0V, input tr 50% to
HVOUT tr or tf 50%, with 50Ω load
Logic Control Table (each channel)
Inputs
Operation
Mode
EN CW/RTZ
PIN
NIN
VPP
to
TX
0 0 0 OFF
B-Mode
with RTZ
1
0
0
1
0
0 ON
1 OFF
0 1 1 OFF
1 0 0 OFF
1 1 0 OFF
CW-Mode
1
1 0 1 OFF
1 1 1 OFF
Disable 0 X X X OFF
Note:
When
When
CW/RTZ
CW/RTZ
=
=
0
1
(in
(in
B-Mode) must be 0
CW-Mode) must be
≤
0
V≤RVGPR≤GP+≤0+.55V.5aVnadn0d
≥
0
V≥RVGNRG≥N-≥0.-55V.5V
Output MOSFETs
VNN
to
TX
TX
to
RGP
OFF
ON
OFF
OFF
ON OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
TX
to
RGN
ON
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
Doc.# DSFP-HV7331
B011513
Supertex inc.
5 www.supertex.com
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HV7331K6-G.PDF ] | |
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