Microchip HV7355 Handleiding

Bekijk gratis de handleiding van Microchip HV7355 (16 pagina’s), behorend tot de categorie Niet gecategoriseerd. Deze gids werd als nuttig beoordeeld door 19 mensen en kreeg gemiddeld 4.2 sterren uit 9 reviews. Heb je een vraag over Microchip HV7355 of wil je andere gebruikers van dit product iets vragen? Stel een vraag

 2018 Microchip Technology Inc.DS20005896A-page 1

HV7355

Features

•High-Density Integrated Ultrasound Transmitter

•0V to +150V Output Voltage

•±1.5A Minimum Source and Sink Current

•±300 mA Current in CW Mode

•Up to 18 MHz Operating Frequency

•Matched Delay Times

•Built-in Gate Driver Floating Voltage Regulator

•2.5V to 3.3V CMOS Logic Interface

Applications

•Portable Medical Ultrasound Imaging

•Piezoelectric Transducer Drivers

•Non-Destructive Testing

•Pulse Waveform Generator

General Description

The HV7355 is an 8-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

non-destructive 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 of ±1.5A for pulsing, when

MC = 1, with up to 150V swings. When MC = 0, all the

output stages drop the peak current to ±500 mA 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.

Package Type

56-lead (8 X 8) VQFN

(Top view)

See Table 2-1 for pin information.

1

56

8-Channel High-Speed Unipolar 1.5A 150V Ultrasound Pulser

Product specificaties