Supertex inc.

Supertex inc.

www.supertex.com

Doc.# DSFP-MD1711

E031714

MD1711

Features

Applications

General Description

The Supertex MD1711 is an IC for a two-channel, 5-level,

high voltage and high speed transmitter driver. It is designed

for medical ultrasound imaging applications, but can also be

used for metal flaw detection, Non-Destructive Testing (NDT),

and for driving piezoelectric transducers.

The MD1711 is a two-channel logic controller circuit with

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

the Supertex TC6320. The MD1711 drives six TC6320s. Each

pair consists of an N-channel and a P-channel MOSFET. They

are designed to have the same impedance and can provide

peak currents of over 2.0amps.

Typical Application Circuit

High Speed, Integrated Ultrasound Driver IC

TC6320

+100V

-100V

+50V

-50V

0V

0V

30

32

34

44

39

41

37

DV

DVSS

-10V

DVDD1

DVDD2

16

19

21

+10V

VLL

+3.3V

AVSS

48

14

15

AVSS

SEL

POSA / POS1A

EN

DGND

AGND

0

MD1711

(1/2 of I/O)

SUB

7

18

AVSS

33

36

28

25

31

DGND

35

40

42

43

DVSS

45

FB

AVDD1

6

0

46

47

13

1

2

3

4

5

OUTPA1

OUTNA1

OUTPA2

OUTNA2

OUTPA3

OUTNA3

DGND

DGND

+5.0V

DVDD1

+10V

DVDD2

+5.0V

+10V

+10V

26

DGND

+10V

-10V

-10V

DVDD2

DVDD1

DVDD1

Transducer

0.22µF

Control Logic

& Level

Translator

NEGA / NEG1A

HVEN1A / POS2A

HVEN2A / NEG2A

ClampA

0.1µF

0.1µF

0.1µF

0.22µF

0.22µF

0.22µF

0.22µF

0.22µF

0.1µF

10nF

10nF

10nF

10nF

1µF

1µF

1µF

1µF

DV

DV

DV

DV

DVDD2

DVDD1