Microchip MD1715 Manual

Microchip Ikke kategoriseret MD1715

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Side 1/18

 2018 Microchip Technology Inc. DS20005921A-page 1

MD1715

Features

• Advanced CMOS Technology

• ±4.75 to 12.9V Gate Drive Voltage

• 2A Output Source and Sink Current

• 6.5 ns Rise and Fall Time with 1 nF Load

• 10 ns Propagation Delay

• ±2 ns Matched Delay Times

• 12 Matched Channels

• 1.8V to 3.3V CMOS Logic Interface

• Smart Logic Threshold

• Low-inductance Package

Applications

• Medical Ultrasound Imaging

• Piezoelectric Transducer Drivers

• Metal Flaw Detection

• Non-destructive Testing (NDT)

General Description

The MD1715, paired with Microchip’s TC8020, forms a

2-channel five-level high-voltage high-speed transmit

pulser chip set. The chip set is designed for medical

ultrasound imaging applications but can also be used

for metal flaw detection, NDT and piezoelectric

transducer drivers.

The MD1715 is a 2-channel logic controller circuit with

12 low-impedance MOSFET gate drivers. There are

two sets of control logic inputs—one for Channel A and

one for Channel B. Each channel consists of three pairs

of MOSFET gate drivers. These drivers are designed to

match the drive requirements of Microchip’s TC8020.

The TC8020 is the output stage of the pulser, with six

pairs of MOSFETs. Each pair consists of a P-channel

and an N-channel MOSFET. They are designed to

have the same impedance and can provide typical

peak currents of ±3.5A at 200V.

Package Type

See Table 2-1 for pin information.

40-lead QFN

(Top view)

2-Channel 5-Level High-Speed Ultrasound Driver IC

VDD2

GN2

VSS

VDD1

High Speed

Gate Buffers

SP1

DP1

100Ω

DN1

SP2

SN2

DP2

DN2

DP3

DN3

OP1 GP1

ON1 GN1

Control

Logic

and

Level

Translation

VLL/EN

SEL

POS

NEG

GND

OP2 GP2

ON2

OP3 GP3

GN3

ON3

SN3

SP3

VPP2

VNN2

VNN1

MD1715

1 OF 2-CH TC8020

6 of 12-FETs

VPP1

VDD1 VDD2

-12V

VSSAVSS

-12V

GND

+12V +12V

AVDD

+12V

PAD PAD

VDD2

VDD1

High Speed

Gate Buffers

SN1

MD1715

DS20005921A-page 2  2018 Microchip Technology Inc.

Functional Block Diagram

Produkt Specifikationer

Mærke:	Microchip
Kategori:	Ikke kategoriseret
Model:	MD1715

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