Supertex inc. MD1711
High Speed, Integrated Ultrasound Driver IC
Features
General Description
Drives two ultrasound transducer channels
The Supertex MD1711 is an IC for a two-channel, 5-level,
Generates 5-level waveform high voltage and high speed transmitter driver. It is designed
for medical ultrasound imaging applications, but can also be
Drives 12 high voltage MOSFETs
used for metal flaw detection, Non-Destructive Testing (NDT),
2.0A source and sink peak current
and for driving piezoelectric transducers.
Up to 20MHz output frequency
12V/ns slew rate
The MD1711 is a two-channel logic controller circuit with
3ns matched delay times
low impedance MOSFET gate drivers. There are two sets of
Second harmonic is less than -40dB
control logic inputs, one for channel A and one for channel B.
Two separate gate drive voltages
Each channel consists of three pairs of MOSFET gate drivers.
1.8 to 3.3V CMOS logic interface
These drivers are designed to match the drive requirements of
the Supertex TC6320. The MD1711 drives six TC6320s. Each
Applications
pair consists of an N-channel and a P-channel MOSFET. They
Medical ultrasound imaging are designed to have the same impedance and can provide
peak currents of over 2.0 amps.
Piezoelectric transducer drivers
Non-Destructive Testing (NDT)
Metal flaw detection
Sonar transmitter
Typical Application Circuit
+10V +10V
+5.0V -10V
0.22F
0.22F 0.22F
+10V
0.22F
0.22F
40 36 35 33 45 43 42 31
FB
+100V
V 1
PP
DV 2 DV 2 DGND DV 1 DV 1
DD DD DVSS DGND DD DV 1
DD DD
30
6
AV 1 DGND
DD
DV 2 1F
DD
0.1F
OUTPA1
39
10nF
47
EN
DV 2
Control Logic DD
13
OUTNA1
SEL
& Level
37
10nF
1
V 1
NN
POSA / POS1A
Translator
2
1F
NEGA / NEG1A
-100V
3
HVEN1A / POS2A
+50V
V 2
PP
4
HVEN2A / NEG2A
DV 1 1F
DD
5 OUTPA2
ClampA
41
10nF
+3.3V MD1711
46 DV 1
DD
VLL
OUTNA2
(1/2 of I/O)
0.1F
34
10nF
V 2
NN
48
Transducer
AVSS 1F
-50V
0.1F
0V
AVSS
14
SUB
15
0.1F
OUTPA3
AVSS
44
V
SS
DV 1
DD
OUTNA3
32
-10V
AGND DGND DV 1 DVSS DV 2 DV 1 DGND DV 2
DD DD DD DD
0V
7 18 19 16 21 28
26 25
0
TC6320
0.22F
0
+10V -10V +10V +5.0V
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com MD1711
Pin Configurations
Ordering Information
48
Package Options
1
48-Lead LQFP 48-Lead QFN
Device
7.00x7.00mm body 7.00x7.00mm body
1.60mm height (max) 1.00mm height (max)
0.50mm pitch 0.50mm pitch
48
MD1711 MD1711FG-G MD1711K6-G
1
-G indicates package is RoHS compliant (Green)
48-Lead LQFP (FG) 48-Lead QFN (K6)
(top view) (top view)
Package Marking
Top Marking
YYWW
YY = Year Sealed
MD1711FG
Absolute Maximum Ratings WW = Week Sealed
LLLLLLLLL
L = Lot Number
Parameter Value
C = Country of Origin*
Bottom Marking
V logic supply voltage -0.5V to +5.5V
A = Assembler ID*
LL
= Green Packaging
CCCCCCCC
AV 1, DV 1, positive gate drive supply -0.5V to +15V
DD DD AAA
*May be part of top marking
DV 2, positive gate drive supply -0.5V to +15V
DD
Package may or may not include the following marks: Si or
AV , DV , negative gate drive supply -15V to +0.5V
SS SS
48-Lead LQFP (FG)
Thermal resistance ( ):
JA
50C/W
48-Lead LQFP*
L = Lot Number
29C/W
MD1711K6
48-Lead QFN* YY = Year Sealed
LLLLLLLLL
WW = Week Sealed
Maximum junction temperature +125C A = Assembler ID
YYWW
C = Country of Origin
AAA CCC
= Green Packaging
Storage temperature -65C to 150C
Package may or may not include the following marks: Si or
Power dissipation 1.2W
48-Lead QFN (K6)
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
Continuous operation of the device at the absolute rating level may affect
device reliability. All voltages are referenced to device ground.
* 1.0oz 4-layer 3x4 PCB
Operating Supply Voltages and Currents
(Over operating conditions unless otherwise specified, AV 1 = DV 1 = DV 2 = 10V, AV = DV = -10V, V = 3.3V, T = 25C)
DD DD DD SS SS LL A
Sym Parameter Min Typ Max Units Conditions
V Logic supply +1.8 +3.3 +5.0 V ---
LL
AV Positive drive bias supply +8.0 +10.0 +12.6 V ---
DD1
DV Positive gate drive supply +4.75 - +12.60 V ---
DD1
DV Positive gate drive supply +4.75 - +12.60 V ---
DD2
AV DV Negative gate drive and bias supply -12.0 -10.0 -8.0 V ---
SS, SS
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
2