MD1712 (Supertex)
Integrated Ultrasound Driver IC

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Supertex inc.
MD1712
High Speed, Integrated Ultrasound Driver IC
Features
►Drives two ultrasound transducer channels
Generates five-level waveform
►Drives 12 high voltage MOSFETs
►±2.0A source and sink peak current
Up to 20MHz output frequency
►12V/ns slew rate
±3.0ns matched delay times
Second harmonic is less than -40dB
►Two separate gate drive voltages
1.8 to 3.3V CMOS logic interface
Applications
►Medical ultrasound imaging
►Piezoelectric transducer drivers
Non-Destructive Testing (NDT)
Metal flaw detection
Sonar transmitter
General Description
The Supertex MD1712 is a two-channel, five-level, high
voltage and high speed transmitter driver IC. 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 MD1712 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 MD1712 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 2.0 amps.
Typical Application Circuit
0.22µF
+10V
40 36
FB DVDD2
AVDD1 6
0.1µF
EN
SEL
POSA / POS1A
NEGA / NEG1A
HVEN1A / POS2A
HVEN2A / NEG2A
CLAMPA
+3.3V
0.1µF
47
13
1
2
3
4
5
46
VLL
+5.0V
35
+10V
-10V
0.22µF
0.22µF
0.22µF
+10V
33 45
43 42 31
0.22µF
DGND DVDD1 DVSS
DGND DVDD1 DGND
DVDD2 30
39
OUTPA1
TC6320
+100V
Control Logic
& Level
Translator
DVDD2
37
10nF
OUTNA1
10nF
MD1712
(1/2 of I/O)
DVDD1
41 OUTPA2
10nF
DVDD1
34 OUTNA2
-100V
+50V
10nF
0.1µF
48 AVSS
-50V
0V
0.1µF
14 AVSS
15
AVSS
SUB
44 OUTPA3
VSS
DVDD2
32
OUTNA3
VPP1
1µF
VNN1
1µF
VPP2
1µF
VNN2
1µF
TRANSDUCER
-10V
DGND
DVSS
DVDD1
DVDD2
AGND
DVDD1
DVDD2
DGND
7 18 19 16 21 28
26 25
0
0.22µF
+10V
-10V
+10V
+5.0V
0V
0
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com


MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
Ordering Information
Package Options
Device
48-Lead LQFP
7.00x7.00mm body
1.60mm height (max)
0.50mm pitch
48-Lead QFN
7.00x7.00mm body
1.00mm height (max)
0.50mm pitch
MD1712
MD1712FG-G
-G indicates package is RoHS compliant (‘Green’)
MD1712K6-G
Pin Configurations
48
1
48-Le(taodpLvQieFwP) (FG)
48
1
48-L(etoapd vQiFewN)(K6)
Package Marking
Top Marking
Absolute Maximum Ratings
Parameter
VLL logic supply voltage
AVDD1, DVDD1, positive gate drive supply
DVDD2, positive gate drive supply
Value
-0.5V to +5.5V
-0.5V to +15V
-0.5V to +15V
YYWW
MD1712FG
LLLLLLLLL
YY = Year Sealed
WW = Week Sealed
L = Lot Number
Bottom Marking C = Country of Origin*
A = Assembler ID*
CCCCCCCC
AAA
= “Green” Packaging
*May be part of top marking
AVSS, DVSS, negative gate drive supply
Thermal resistance (θJA):
48-Lead LQFP*
-15V to +0.5V
50°C/W
Package may or may not include the following marks: Si or
48-Lead LQFP (FG)
48-Lead QFN*
Maximum junction temperature
29°C/W
+125C
MD1712K6
LLLLLLLLL
L = Lot Number
YY = Year Sealed
WW = Week Sealed
Storage temperature
-65°C to 150°C
Power dissipation
1.2W
Absolute Maximum Ratings are those values beyond which damage to the
device may occur. Functional operation under these conditions is not implied.
YYWW
AAA CCC
A = Assembler ID
C = Country of Origin
= “Green” Packaging
Package may or may not include the following marks: Si or
48-Lead QFN (K6)
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, AVDD1 = DVDD1 = DVDD2 = 10V, AVSS = DVSS = -10V, VLL = 3.3V, TA = 25°C)
Sym Parameter
Min Typ Max Units Conditions
VLL Logic supply
+1.8 +3.3 +5.0 V ---
AVDD1 Positive drive bias supply
+8.0 +10 +12.6 V ---
DVDD1 Positive gate drive supply
+4.75 - +12.6 V ---
DVDD2 Positive gate drive supply
+4.75 - +12.6 V ---
AVSS, DVSS Negative gate drive and bias supply
-12.0 -10 -8.0 V ---
IVLL Logic supply current
- 2.0 -
IAVDD1 Positive bias current
I IAVSS & DVSS Negative drive and bias supply current
-
-
5.0
20
-
-
mA
All channels on at 5.0Mhz,
no load
IDVDD1 Positive drive current 1
- 55 -
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
Operating Supply Voltages and Currents (cont.)
(Over operating conditions unless otherwise specified, AVDD1 = DVDD1 = DVDD2 = 10V, AVSS = DVSS = -10V, VLL = 3.3V, TA = 25°C)
IDVDD2
IAVDD1Q
IAVSSQ
IDVDD1Q
IDVDD2Q
IVLLQ
Positive drive current 2
VAVDD1 quiescent current
VAVSS quiescent current
VDVDD1 quiescent current
VDVDD2 quiescent current
Logic supply current
-
13
-
mA
All channels on at 5.0Mhz,
DVDD2 = 5.0, no load
- 2.0 - mA
- 0.75 -
mA
- - 10 µA EN = low, All inputs low or high.
- - 10 µA
- 1.0 - mA
DC Electrical Characteristics
(Over operating conditions unless otherwise specified, AVDD1 = DVDD1 = DVDD2 = 10V, AVSS = DVSS = -10V, VLL = 3.3V, TA = 0 to 70°C)
P-Channel Gate Driver Outputs
Sym Parameter
Min Typ Max Units Conditions
RSINK
RSOURCE
ISINK
ISOURCE
Output sink resistance
Output source resistance
Peak output sink current
Peak output source current
- - 6.0 Ω ISINK = 100mA
- - 6.0 Ω ISOURCE = 100mA
- 2.0 - A ---
- 2.0 - A ---
N-Channel Gate Driver Outputs
Sym Parameter
Min Typ Max Units Conditions
RSINK
RSOURCE
ISINK
ISOURCE
Output sink resistance
Output source resistance
Peak output sink current
Peak output source current
- - 10 Ω ISINK = 100mA
- - 10 Ω ISOURCE = 100mA
- 1.5 - A ---
- 1.5 - A ---
Logic Inputs
Sym Parameter
Min Typ Max Units Conditions
VIH Input logic high voltage
VIL Input logic low voltage
IIH Input logic high current
IIL Input logic low current
0.8VLL
-
VLL V ---
0
-
0.2VLL
V ---
- - 1.0 µA ---
-1.0 -
- µA ---
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
AC Electrical Characteristics
(Over operating conditions unless otherwise specified, AVDD1 = DVDD1 = DVDD2 = 10V, AVSS = DVSS = -10V, VLL = 3.3V, TA = 0 to 70°C)
Sym Parameter
Min Typ Max Units Conditions
fOUT Output frequency range
- - 20 MHz ---
tPH
Propagation delay when
output is from low to high
- 19 - ns No load, see timing diagram
tPL
Propagation delay when
output is from high to low
- 19 - ns No load, see timing diagram
tr
tf
ΔtDM
ΔtDLAY
SR
HD2
Output rise time
Output fall time
Delay time matching
Output jitter
Output slew rate
2nd harmonic distortion
- 8.0 - ns 1000pF load, see timing diagram
- 8.0 - ns 1000pF load, see timing diagram
- - ±3.0 ns No load, from device to device
- 30 - ps Standard deviation of tD samples (1k)
- 12 - V/ns Measured at TC6320 output
- -40 - dB with 100Ω load
Power-Up Sequence
Step Connection
1 AVSS , DVSS
2 VLL, AVDD1, DVDD1 & DVDD2
Description
Negative gate drive supply and substrate bias
Logic supply, positive gate drive supply and bias
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
Truth Table for Channels A and B (For SEL = L)
Logic Control Inputs
SEL
EN
HVEN1/ HVEN2/
POS2 NEG2
Clamp
01
0
0
0
POS/
POS1
0
01
0
0
0
0
01
0
0
0
1
01
0
0
0
1
01
0
0
1
0
01
0
0
1
0
01
0
0
1
1
01
0
0
1
1
01
0
1
0
0
01
0
1
0
0
01
0
1
0
1
01
0
1
0
1
01
0
1
1
0
01
0
1
1
0
01
0
1
1
1
01
0
1
1
1
01
1
0
0
0
01
1
0
0
0
01
1
0
0
1
01
1
0
0
1
01
1
0
1
0
01
1
0
1
0
01
1
0
1
1
01
1
0
1
1
01
1
1
0
0
01
1
1
0
0
01
1
1
0
1
01
1
1
0
1
01
1
1
1
0
01
1
1
1
0
01
1
1
1
1
01
1
1
1
1
00
X
X
X
X
NEG/
NEG1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
VPP1 to VNN1 Output VPP2 to VNN2 Output VPP3 to VNN3 Output
HVOUTP1 HVOUTN1 HVOUTP2 HVOUTN2 HVOUTP3 HVOUTN3
ON ON
OFF
OFF
ON ON
ON ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
Truth Table for Channels A and B (For SEL = H)
SEL EN
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
11
10
Logic Control Inputs
Clamp
0
HVEN1/ HVEN2/
POS2 NEG2
00
000
000
000
001
001
001
001
010
010
010
010
011
011
011
011
100
100
100
100
101
101
101
101
110
110
110
110
111
111
111
111
XXX
POS/
POS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
X
NEG/
NEG1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
VPP1 to VNN1 Output VPP2 to VNN2 Output VPP3 to VNN3 Output
HVOUTP1 HVOUTN1 HVOUTP2 HVOUTN2 HVOUTP3 HVOUTN3
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
OFF
ON ON
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
OFF
ON ON
OFF
OFF
OFF
ON
ON OFF
ON OFF
OFF
ON ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
ON ON
OFF
OFF
OFF
ON
ON
OFF
OFF
OFF
ON
ON ON
OFF
OFF
OFF
ON
ON
OFF
OFF
ON
ON
ON ON
OFF
OFF
OFF
ON
ON OFF
ON OFF
ON
ON ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
ON
ON ON
OFF
OFF
OFF
OFF
OFF
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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MD1712
Test Circuit for Channel A
+10V AVDD1
+10V DVDD1
+10V DVDD2
+3.3V VLL
EN
POSA/POS1A
NEGA/NEG1A
HVEN1A/POS2A
HVEN2A/NEG2A
CLAMP A
SEL
AGND
DGND
-10V AVSS
DVSS
Channel A
Control
Logic and
Level
Translation
1/2 of MD1712
DVDD2
Out-PA1
10nF
GPA3
DVDD2
Out-NA1
10nF
GNA3
DVDD1
Out-PA2
10nF GPA3
DVDD1
Out-NA2
10nF GNA3
VPP1
+100V
HVOUTPA1
HVOUTNA1
VNN1
-100V
VPP2
+50V
HVOUTPA2
HVOUTNA2
VNN2
-50V
Out-PA3
DVSS
DVDD1
Out-NA3
VPP3
GPA3
HVOUTPA3
GNA3
HVOUTNA3
VNN3
3x TC6320
HVOUTA
RLOAD
100
Timing Diagram
VLL
HVEN1A / POS2A
0V
VLL
HVEN2A / NEG2A
0V
VLL
POSA / POS1A
0V
VLL
NEGA / NEG1A
0V
VPP1
HVOUTA 0V
fOUT
VNN1
tr1, rise time from
0.9VNN1 to 0.9VPP1
tf1, fall time from
0.9VPP1 to 0.9VNN1
VPP2
VNN2
tr2, rise time from
0.9VNN2 to 0.9VPP2
tf2, fall time from
0.9VPP2 to 0.9VNN2
3.3V
IN
0V
10V
OUT
0V
50%
50%
tPH
90%
10%
tr
tPL
90%
10%
tf
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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Integrated Ultrasound Driver IC

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MD1712
Block Diagram
DVDD1
DVDD2
AVDD1
POSA / POS1A
NEGA / NEG1A
HVEN1A / POS2A
HVEN2A / NEG2A
CLAMPA
DVDD2
DVDD2
10nF
10nF
DVDD1
DVDD1
10nF
10nF
VSS DVDD1
+100V
1.0μF
-100V
1.0μF
+100V
1.0μF
-100V
1.0μF
Piezoelectric
Transducer B
VLL Control
Logic
SEL and
EN
Level
Translator
DVDD2
+100V
1.0μF
DVDD2
10nF
POSB / POS1B
NEGB / NEG1B
HVEN1B / POS2B
HVEN2B / NEG2B
CLAMPB
10nF
DVDD1
DVDD1
10nF
-100V
1.0μF
+100V
1.0μF
Piezoelectric
Transducer B
10nF
-100V
AVSS
DVSS
AGND
DGND
VSS DVDD1
1.0μF
Supertex
MD1712
Supertex
TC6320
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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Integrated Ultrasound Driver IC

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MD1712
Pin Description (48-Lead LQFP & 48-Lead QFN)
Pin #
1
2
3
4
5
6
7
Name
Description
POSA / POS1A
Logic input control for channel A. When SEL = L, the pin is POSA. When SEL = H, the pin
is POS1A.
NEGA / NEG1A
Logic input control for channel A. When SEL = L, the pin is NEGA. When SEL = H, the pin
is NEG1A.
HVEN1A / POS2A
Logic input control for channel A. When SEL= L, the pin is HVEN1A. When SEL = H, the pin
is POS2A.
HVEN2A / NEG2A
Logic input control for channel A. When SEL = L, the pin is HVEN2A. When SEL = H, the
pin is NEG2A.
CLAMPA
Used with SEL = H. Logic input control for OUT-PA3 and OUT-NA3. Connect to ground when
SEL = L.
AVDD1
AGND
Supplies analog circuitry portion of the gate driver. Should be at the same potential as
DVDD1.
Analog Ground.
8
CLAMPB
Used with SEL = H. Logic input control for OUT-PB3 and OUT-NB3. Connect to ground when
SEL = L.
9
HVEN2B / NEG2B
Logic input control for channel B. When SEL = L, the pin is HVEN2B. When SEL = H, the
pin is NEG2B.
10
HVEN1B / POS2B
Logic input control for channel B. When SEL = L, the pin is HVEN1B. When SEL = H, the
pin is POS2B.
11
NEGB / NEG1B
Logic input control for channel B. When SEL = L, the pin is NEGB. When SEL = H, the pin
is NEG1B.
12
POSB / POS1B
Logic input control for channel B. When SEL = L, the pin is POSB. When SEL = H, the pin
is POS1B.
13 SEL Logic input select. See truth tables for SEL = L and SEL = H.
14 Negative driver supply for OUT-PA3, OUT-PB3 and bias circuits. They are also connected
AVSS
to the IC substrate. They are required to connect to the most negative potential of voltage
15 supplies.
16
DVSS
Gate drive supply voltage for OUT-PA3 and OUT-PB3. Supplies digital circuitry portion and
the main Output stage. Should be at the same potential as AVSS.
17
OUT-PB3
Output P-Channel gate driver for channel B
18
DGND
Digital Ground.
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
19
DVDD1
output stage for OUT-PA2, OUT-NA2, OUT-NA3, OUT-PB2, OUT-NB2, and OUT-NB3. hould
be at the same potential as AVDD1.
20
Out-PB2
Output P-Channel gate driver for channel B
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
21
DVDD2
output stage for OUT-PA1, OUT-NA1, OUT-PB1, and OUT-NB1. Can be at a different po-
tential than DVDD1.
22
Out-PB1
Output P-Channel gate driver for channel B
23 N/C No connect.
24
Out-NB1
Output N-Channel gate driver for channel B
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
25
DVDD2
output stage for OUT-PA1, OUT-NA1, OUT-PB1, and OUT-NB1. Can be at a different po-
tential than DVDD1.
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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Integrated Ultrasound Driver IC

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MD1712
Pin Description (48-Lead LQFP & 48-Lead QFN) (cont.)
Pin #
Name
Description
26
DGND
Digital Ground.
27
Out-NB2
Output N-Channel gate driver for channel B
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
28
DVDD1
output stage for OUT-PA2, OUT-NA2, OUT-NA3, OUT-PB2, OUT-NB2, and OUT-NB3.
Should be at the same potential as AVDD1.
29
Out-NB3
Output N-Channel gate driver for channel B
30
DGND
Digital Ground.
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
31
DVDD1
output stage for OUT-PA2, OUT-NA2, OUT-NA3, OUT-PB2, OUT-NB2, and OUT-NB3.
Should be at the same potential as AVDD1.
32
OUT-NA3
Output N-Channel gate drivers for channel A.
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
33
DVDD1
output stage for OUT-PA2, OUT-NA2, OUT-NA3, OUT-PB2, OUT-NB2, and OUT-NB3.
Should be at the same potential as AVDD1.
34
Out-NA2
Output N-Channel gate drivers for channel A.
35
DGND
Digital Ground.
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
36
DVDD2
output stage for OUT-PA1, OUT-NA1, OUT-PB1, and OUT-NB1. Can be at a different po-
tential than DVDD1.
37
Out-NA1
Output N-Channel gate drivers for channel A.
38 N/C No connect.
39
Out-PA1
Output P-Channel gate drivers for channel A
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
40
DVDD2
output stage for OUT-PA1, OUT-NA1, OUT-PB1, and OUT-NB1. Can be at a different po-
tential than DVDD1.
41
OUT-PA2
Output P-Channel gate drivers for channel A
Gate drive supply voltage. Supplies digital circuitry portion of the gate driver and the main
42
DVDD1
output stage for OUT-PA2, OUT-NA2, OUT-NA3, OUT-PB2, OUT-NB2, and OUT-NB3.
Should be at the same potential as AVDD1.
43
DGND
Digital Ground.
44
45
46
47
48
Center
Pad
Out-PA3
DVSS
VLL
EN
AVSS
AVSS
Output P-Channel gate drivers for channel A
Gate drive supply voltage for OUT-PA3 and OUT-PB3. Supplies digital circuitry portion and
the main output stage. Should be at the same potential as AVSS.
Logic supply voltage.
Logic input enable control. When EN = L, all P-channel output drivers are high and all N-
channel output drivers are low.
Negative driver supply for OUT-PA3, OUT-PB3 and bias circuits. They are also connected
to the IC substrate. They are required to connect to the most negative potential of voltage
supplies.
For the QFN package, the center pad is at AVSS potential. It should be externally connected
to AVSS.
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
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MD1712 (Supertex)
Integrated Ultrasound Driver IC

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48-Lead LQFP Package Outline (FG)
7.00x7.00mm body, 1.60mm height (max), 0.50mm pitch
D
D1
MD1712
Note 1
(Index Area
D1/4 x E1/4)
48
1
b
e
Top View
A A2
A1
Side View
E
E1
View B
Seating
Plane
L2
Gauge
Plane
L1
View B
Seating
Plane
Note:
1. A Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/identifier; an embedded metal marker; or
a printed indicator.
Symbol
A A1 A2 b
D D1 E E1 e
L L1 L2 θ
MIN 1.40* 0.05 1.35 0.17 8.80*
Dimension
(mm)
NOM
-
- 1.40 0.22 9.00
MAX 1.60 0.15 1.45 0.27 9.20*
JEDEC Registration MS-026, Variation BBC, Issue D, Jan. 2001.
* This dimension is not specified in the JEDEC drawing.
Drawings are not to scale.
Supertex Doc. #: DSPD-48LQFPFG Version, D041309.
6.80*
7.00
7.20*
8.80*
9.00
9.20*
6.80*
7.00
7.20*
0.50
BSC
0.45
0.60
0.75
1.00
REF
0.25
BSC
0O
3.5O
7O
Supertex inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 Tel: 408-222-8888 www.supertex.com
11


MD1712 (Supertex)
Integrated Ultrasound Driver IC

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48-Lead QFN Package Outline (K6)
7.00x7.00mm body, 1.00mm height (max), 0.50mm pitch
D
48
D2
1
Note 1
(Index Area
D/2 x E/2)
e
E
b
MD1712
48 Note 1
(Index Area
D/2 x E/2)
1
E2
A
A1
Top View
Side View
θ
A3
Seating
Plane
L1
Note 2
View B
Bottom View
Note 3
View B
L
Notes:
1. A Pin 1 identifier must be located in the index area indicated. The Pin 1 identifier can be: a molded mark/identifier; an embedded metal marker; or
a printed indicator.
2. Depending on the method of manufacturing, a maximum of 0.15mm pullback (L1) may be present.
3. The inner tip of the lead may be either rounded or square.
Symbol
A A1 A3 b
D
MIN 0.80 0.00
0.18 6.85*
Dimension
(mm)
NOM
0.90
0.02
0.20
REF
0.25
7.00
MAX 1.00 0.05
0.30 7.15*
JEDEC Registration MO-220, Variation VKKD-6, Issue K, June 2006.
* This dimension is not specified in the JEDEC drawing.
† This dimension differs from the JEDEC drawing.
Drawings are not to scale.
Supertex Doc.#: DSPD-48QFNK67X7P050, Version C041009.
D2
1.25
-
5.45
E
6.85*
7.00
7.15*
E2
1.25
-
5.45
e
0.50
BSC
L
0.30
0.40
0.50
L1
0.00
-
0.15
θ
0O
-
14O
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline
information go to http://www.supertex.com/packaging.html.)
Supertex inc. does not recommend the use of its products in life support applications, and will not knowingly sell them for use in such applications unless it receives
an adequate “product liability indemnification insurance agreement.” Supertex inc. does not assume responsibility for use of devices described, and limits its liability
to the replacement of the devices determined defective due to workmanship. No responsibility is assumed for possible omissions and inaccuracies. Circuitry and
specifications are subject to change without notice. For the latest product specifications refer to the Supertex inc. (website: http//www.supertex.com)
©2012 Supertex inc. All rights reserved. Unauthorized use or reproduction is prohibited.
Supertex inc.
Doc.# DSFP-MD1712
B011812
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
12




MD1712.pdf
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