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HV7355

Supertex
Part Number HV7355
Manufacturer Supertex
Description Ultrasound Pulser
Published Sep 9, 2013
Detailed Description Supertex inc. HV7355 Eight Channel, High Speed, Unipolar, Ultrasound Pulser 1.5A 150V Features ►► HVCMOS technology f...
Datasheet PDF File HV7355 PDF File

HV7355
HV7355

Overview
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 HV7355 Ordering Information Part Number Package Options Packing HV7355K6-G 56-Lead QFN (8...


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