Supertex inc.
High Speed Quad MOSFET Driver
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MD1810
Features
6.0ns rise and fall time with 1000pF load
2.0A peak output source/sink current
1.8 to 5.0V input CMOS compatible
5.0 to 12V total supply voltage
Smart logic threshold
Low jitter design
Four matched channels
Outputs can swing below ground
Output is high impedence when disabled
Low inductance package
High-performance thermally-enhanced QFN
General Description
The Supertex MD1810 is a high-speed quad MOSFET driver. It
is designed to drive high voltage P- and N-channel MOSFETs for
medical ultrasound imaging applications. The MD1810 can also be
used for ultrasound metal flaw detection, Non-Destructive Testing
(NDT), piezoelectric transducer drive, clock drive, and PIN diode
drive.
The MD1810 has four inputs which individually control four outputs.
It also has an output enable (OE) pin. When OE is low, all of the
outputs will be in a high impedence state regardless of their logic
input control. When OE is high, the MD1810 sets the threshold logic
transition to (V
OE
+V
GND
)/2. This ensures the transition to always be
at half the amplitude of the logic input signal. This allows the device
to have inherent propagation delay matching regardless of the logic
input amplitude.
The output stage of the MD1810 has separate power connections
enabling the output signal L and H levels to be chosen independently
from the V
DD
and V
SS
supply voltages. As an example, the input logic
levels may be 0 and 1.8V, the control logic may be powered by +5.0
and -5.0V, and the output L and H levels may be varied anywhere
over the range of -5.0 to +5.0V. The output stage is capable of peak
currents of up to ±2.0A, depending on the supply voltages used and
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Applications
Medical ultrasound imaging
Piezoelectric transducer drivers
Non-Destructive Testing (NDT)
PIN diode driver
CCD Clock driver/buffer
High speed level translator
Typical Application Circuit
+100V
+12V
+12V
0.47 F
0.47 F
1.0 F
VDD
OE
INA
VH
10nF
OUTA
10nF
-100V
1.0 F
INB
3.3V CMOS
Logic Inputs
INC
OUTB
TC6320
+10V
1.0 F
OUTC
IND
GND VSS VL
OUTD
10nF
MD1810
10nF
-10V
1.0 F
TC6320
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
Tel: 408-222-8888
www.supertex.com
MD1810
Ordering Information
Device
MD1810
4.00x4.00mm body
1.00mm height (max)
0.65mm pitch
16-Lead QFN
MD1810K6-G
-G indicates package is RoHS compliant (‘Green’)
Absolute Maximum Ratings
Parameter
V
DD
-V
SS
, Logic supply voltage
V
H
, Output high supply voltage
V
L
, Output low supply voltage
V
SS
, Low side supply voltage
Logic input levels
Maximum junction temperature
Storage temperature
Operating temperature
Package power dissipation
Thermal resistance (θ
JA
)*
Value
-0.5V to +13.5V
V
L
- 0.5V to V
DD
+0.5V
V
SS
- 0.5V to V
H
+0.5V
-7.0V to +0.5V
V
SS
- 0.5V to GND +7V
+125°C
-65°C to 150°C
-20°C to +85°C
2.2W
45°C/W
Pin Configuration
16
1
16-Lead QFN (K6)
(top view)
Product Marking
1810
YWLL
Y = Last Digit of Year Sealed
W = Code for Week Sealed
L = Lot Number
= “Green” Packaging
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
Package may or may not include the following marks: Si or
16-Lead QFN (K6)
= V
DD
= 12V, V
L
= V
SS
= GND = 0V, V
OE
= 3.3V, T
A
= 25°C)
DC Electrical Characteristics
(V
Sym
V
DD
- V
SS
V
SS
V
H
V
L
I
DDQ
I
HQ
I
DD
I
H
V
IH
V
IL
I
IH
I
IL
V
IH
V
IL
R
IN
C
IN
Parameter
Logic supply voltage
Low side supply voltage
Output high supply voltage
Output low supply voltage
V
DD
quiescent current
V
H
quiescent current
V
DD
average current
V
H
average current
Input logic voltage high
Input logic voltage low
Input logic current high
Input logic current low
OE input logic voltage high
OE input logic voltage low
Input logic impedance to GND
Logic input capacitance
H
Min
4.5
-5.5
V
SS
+2
V
SS
-
-
-
-
V
OE
-0.3
0
-
-
1.7
0
10
-
Typ
-
-
-
-
0.8
-
7.0
18
-
-
-
-
-
20
5.0
Max
13
0
V
DD
V
DD
-2
-
10
-
-
5.0
0.3
1.0
1.0
5.0
0.3
30
10
Units
V
V
V
V
mA
µA
mA
mA
V
V
µA
µA
V
V
KΩ
pF
Conditions
2.5V ≤ V
DD
≤13V
---
---
---
No input transitions, OE = 1
One channel on at 5.0Mhz,
No load
For logic inputs INA, INB, INC, and
IND
For logic input OE
---
www.supertex.com
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
2
Tel: 408-222-8888
MD1810
DC Electrical Characteristics
(cont.)
(V
Sym
R
SINK
R
SOURCE
I
SINK
I
SOURCE
Parameter
Output sink resistance
Output source resistance
Peak output sink current
Peak output source current
H
H
= V
DD
= 12V, V
L
= V
SS
= GND = 0V, V
OE
= 3.3V, T
A
= 25°C)
Min
-
-
-
-
Typ
-
-
2.0
2.0
Max
12.5
12.5
-
-
Units
Ω
Ω
A
A
Conditions
I
SINK
= 50mA
I
SOURCE
= 50mA
---
---
AC Electrical Characteristics
(V
Sym
t
irf
t
PLH
t
PHL
t
r
t
f
l t
r
- t
f
l
l t
PLH
-t
PHL
l
∆t
dm
t
OE_ON
t
OE_OFF
Parameter
Input or OE rise & fall time
Propagation delay when output
is from low to high
Propagation delay when output
is from high to low
Output rise time
Output fall time
Rise and fall time matching
Propagation low to high and high
to low matching
Propagation delay matching
Output enable time
= V
DD
= 12V, V
L
= V
SS
= GND = 0V, V
OE
= 3.3V, T
A
= 25°C)
Min
-
-
-
-
-
-
-
-
-
-
Typ
-
7.0
7.0
6.0
6.0
1.0
1.0
±2.0
200
9.0
Max
10
-
-
-
-
-
-
-
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
Conditions
Logic input edge speed requirement
C
LOAD
= 1000pF, see timing diagram
Input signal rise/fall time 2.0ns
For each channel
Device to device delay match
---
Logic Truth Table
Logic Inputs
OE
H
H
L
IN
L
H
X
Output
V
L
V
H
High Z
Timing Diagram
3.3V
INPUT
0V
t
PLH
12V
OUTPUT
0V
10%
t
r
t
f
90%
t
PHL
90%
10%
50%
50%
V
TH
/ V
OE
Curve
2.0
V
TH
vs V
OE
V
OE/2
1.5
V
TH
1.0
0.5
0.6V
0
0
1.0
2.0
3.0
4.0
5.0
V
OE
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
3
Tel: 408-222-8888
www.supertex.com
MD1810
Simplified Block Diagram
OE
INA
OUTA
VDD
VH
INB
OUTB
INC
OUTC
IND
OUTD
MD1810
GND VSS
VL
Detailed Block Diagram
VDD
OE
VH
Level
Shifter
VSS
VDD
OUTA
INA
Level
Shifter
VSS
VL
VH
VDD
VSS
VDD
OUTB
INB
Level
Shifter
VSS
VL
VDD
VH
VSS
VDD
OUTC
INC
Level
Shifter
VSS
VL
VH
VDD
VSS
VDD
OUTD
IND
Level
Shifter
GND
SUB
VSS
VL
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
4
Tel: 408-222-8888
www.supertex.com
MD1810
Typical Applications
2-Channel +100V to -100V Pulser
+100V
+12V
0.47 F
+12V
0.47 F
0.1 F
VDD
OE
INA
VH
10nF
To Piezoelectric
Transducer
OUTA
OUTB
10nF
-100V
3.3V CMOS
Logic Inputs
INB
Supertex
TC6320TG
+100V
0.1 F
INC
OUTC
0.1 F
IND
OUTD
10nF
GND VSS VL
To Piezoelectric
Transducer
Supertex
MD1810
10nF
-100V
Supertex
TC6320TG
0.1 F
Single Channel ±100V to 0V Pulser
+100V
+5.0V
0.47 F
VDD
OE
INA
OUTA
VH
+5.0V
0.47 F
10nF
0.1 F
To Piezoelectric
Transducer
10nF
-100V
INB
3.3V CMOS
Logic Inputs
INC
OUTB
Supertex
TC6320
0.1 F
OUTC
IND
GND VSS VL
OUTD
-5.0V
-5.0V
0.47 F
0.47 F
Supertex
MD1810
Supertex
TC2320
Supertex inc.
1235 Bordeaux Drive, Sunnyvale, CA 94089
5
Tel: 408-222-8888
www.supertex.com
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