General Description
The MAX4810/MAX4811/MAX4812 integrated circuits
generate high-voltage, high-frequency, unipolar or bipo-
lar pulses from low-voltage logic inputs. These dual
pulsers feature independent logic inputs, independent
high-voltage pulser outputs with active clamps and
independent high-voltage supply inputs.
The MAX4810/MAX4811/MAX4812 feature a 9Ω output
impedance for the high-voltage outputs, and a 27Ω
impedance for the active clamp. The high-voltage out-
puts are guaranteed to provide 1.3A output current.
All devices use three logic inputs per channel to control
the positive and negative pulses and active clamp. Also
included are two independent enable inputs. Disabling
EN ensures the output MOSFETs are not accidentally
turned on during fast power-supply ramping. This allows
for faster ramp times and smaller delays between puls-
ing modes. A low-power shutdown mode reduces
power consumption to less than 1µA. All digital inputs
are CMOS compatible.
The MAX4810 includes clamp output overvoltage pro-
tection, while the MAX4811 features both pulser output
and clamp output overvoltage protection. The MAX4812
does not provide overvoltage protection. See the
Ordering Information/Selector Guide
.
The MAX4810/MAX4811/MAX4812 are available in a
56-pin (7mm x 7mm), TQFN exposed-pad package and
are specified over the 0°C to +70°C commercial tem-
perature range.
Features
Highly Integrated, High-Voltage, High-Frequency
Unipolar/Bipolar Pulser
9Ω Output Impedance and 1.3A (min) Output
Current
27Ω Active Clamp
Pulser and Clamp Overvoltage Protection
(MAX4810/MAX4811)
0 to +220V Unipolar or ±110V Bipolar Outputs
Matched Rise/Fall Times and Matched
Propagation Delays
CMOS-Compatible Logic Inputs
56-Pin, 7mm x 7mm, TQFN Package
MAX4810/MAX4811/MAX4812
Dual, Unipolar/Bipolar, High-Voltage
Digital Pulsers
________________________________________________________________
Maxim Integrated Products
1
19-4138; Rev 0; 10/08
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
EVALUATION KIT
AVAILABLE
Pin Configuration
TOP VIEW
MAX4810
MAX4811
MAX4812
TQFN
7mm x 7mm
15
17
16
18
19
20
21
22
23
24
25
26
27
28
GND
V
CC1
INN1
INC1
INP1
EN1
AGND
EN2
INP2
INC2
INN2
V
CC2
GND
C
DP1
GND
V
CC1
C
GC1
C
DC1
V
EE1
V
SS
V
DD
V
EE2
C
DC2
C
GC2
V
CC2
GND
C
DP2
48
47
46
45
44
43
54
53
56
55
52
51
50
49
1 2 3 4 5 6 7 8 9 1011121314
42 41 40 39 38 37 36 35 34 33 32 31 30 29
V
NN1
C
GN1
C
DN1
V
NN1
N.C.
ON1
OCN1
GND
OCP1
OP1
N.C.
V
PP1
V
PP1
C
GP1
V
NN2
C
GN2
C
DN2
V
NN2
N.C.
ON2
OCN2
GND
OCP2
OP2
N.C.
V
PP2
V
PP2
C
GP2
*EP = EXPOSED PAD, CONNECT EP TO V
SS
.
*EP
+
SHDN
Ordering Information/
Selector Guide
Note: All devices are specified over the 0°C to +70°C operating
temperature range.
+
Denotes a lead-free/RoHS-compliant package.
*
Future product—contact factory for availability.
**
EP = Exposed pad.
PART
PROTECTED
OUTPUTS
OUTPUT
CURRENT
(A)
PIN-
PACKAGE
MAX4810CTN+
OCP_, OCN_
1.3
56 TQFN-EP**
MAX4811CTN+
OCP_, OCN_,
OP_, ON_
1.3
56 TQFN-EP**
MAX4812CTN+*
None 1.3
56 TQFN-EP**
Warning: The MAX4810/MAX4811/MAX4812 are designed to operate with high voltages. Exercise caution.
Ultrasound Medical
Imaging
Cleaning Equipment
Flaw Detection
Piezoelectric Drivers
Test Instruments
Applications
MAX4810/MAX4811/MAX4812
Dual, Unipolar/Bipolar, High-Voltage
Digital Pulsers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
DD
= +2.7V to +6V, V
CC_
= +4.75V to +12.6V, V
EE_
= -12.6V to -4.75V, V
NN_
= -200V to 0, V
PP_
= 0 to (V
NN_
+ 200V), V
SS
the lower of
V
NN1
or V
NN2
, T
A
= T
J
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 3) (See Figures 8, 9, and 10.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
(Voltages referenced to GND.)
V
DD
Logic Supply Voltage........................................-0.3V to +6V
V
CC_
Output Driver Positive Supply Voltage ..........-0.3V to +15V
V
EE_
Output Driver Negative Supply Voltage.........-15V to +0.3V
V
PP_
High Positive Supply Voltage.......................-0.3V to +230V
V
NN_
High Negative Supply Voltage ....................-230V to +0.3V
V
SS
Voltage................................................(V
PP_
- 250V) to V
NN_
V
PP1
- V
NN1
, V
PP2
- V
NN2
Supply Voltage............-0.6V to +250V
INP_, INN_, INC_, EN_, SHDN Logic Input...-0.3V to V
DD
+ 0.3V
O
P_,
O
CP_
, O
LN_
, O
N_
..............(-0.3V + V
NN_
) to (-0.3V to V
PP_
)
C
GN_
Voltage............................(-0.3V + V
NN_
) to (+15V + V
NN_
)
C
GP_
Voltage .............................(+0.3V + V
PP_
) to (-15V + V
PP_
)
C
GC_
Voltage...........................................................-15V to +15V
C
DC_,
C
DP_
, C
DN_
Voltage......................................-0.3V to V
CC_
Peak Current per Output Channel ........................................3.0A
Continuous Power Dissipation (T
A
= +70°C) (Note 1)
56-Pin TQFN (derate 40mW/°C above +70°C) ..........3200mW
Thermal Resistance (Note 2)
θ
JA
................................................................................25°C/W
θ
JC
...............................................................................0.8°C/W
Operating Temperature Range...............................0°C to +70°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
POWER SUPPLY (V
DD
, V
CC_
, V
EE
_, V
PP_
, V
NN_
)
Logic Supply Voltage V
DD
+2.7
+3 +6 V
Positive Drive Supply Voltage V
CC_
+4.75 +12 +12.6
V
Negative Drive Supply Voltage
V
EE_
-12.6
-12
-4.75
V
High-Side Supply Voltage V
PP_
0
V
NN_
+
220
V
Low-Side Supply Voltage V
NN_
-200
0V
V
PP_
- V
NN_
Supply Voltage 0
+220
V
SUPPLY CURRENT (Single Channel)
V
INN_
/V
INP_
= 0
, V
SHDN
= 0 1
V
DD
Supply Current I
DD
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
INN_
= V
INP_
, f = 5MHz
100 200
µA
V
SHDN
= 0, CH1 and CH2 1
V
EN_
= V
DD
, V
SHDN
= V
DD,
CH1 and CH2
130 200
µA
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
INN_
= V
INP_
, f = 5MHz, V
CC_
= 5V, V
DD
= 3V,
only one channel switching
15
V
CC_
Supply Current I
CC_
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
INN_
= V
INP_
, f = 5MHz, V
CC_
= 12V, V
DD
= 3V,
only one channel switching
36
mA
Note 1: This specification is based on the thermal characteristic of the package, the maximum junction temperature, and the setup
described by JEDEC 51. The maximum power dissipation for the MAX4810/MAX4811/MAX4812 might be limited by the thermal
protection included in the device.
Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial
.
MAX4810/MAX4811/MAX4812
Dual, Unipolar/Bipolar, High-Voltage
Digital Pulsers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +2.7V to +6V, V
CC_
= +4.75V to +12.6V, V
EE_
= -12.6V to -4.75V, V
NN_
= -200V to 0, V
PP_
= 0 to (V
NN_
+ 200V), V
SS
the lower of
V
NN1
or V
NN2
, T
A
= T
J
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 3) (See Figures 8, 9, and 10.)
PARAMETER
SYMBOL
CONDITIONS
MIN
MAX
UNITS
V
SHDN
= 0, CH1 and CH2 25
V
EN_
= V
DD
, V
SHDN
= V
DD
, CH1 and CH2 1
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
INN_
= V
INP_
, f = 5MHz, V
EE_
= -5V,
only one channel switching
200
V
EE_
Supply Current I
EE_
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
INN_
= V
INP_
, f = 5MHz, V
EE_
= -12V,
only one channel switching
200
µA
V
SHDN
= 0, CH1 and CH2 1
V
EN_
= V
DD
, V
SHDN
= V
DD
, CH1 and CH2 90
160
µA
V
E N _
= V
D D
, V
SHDN
= V
D D
, V
I N C _
= 0 or V
D D
,
V
I N N _
= V
I NP_
, f = 5M H z, V
P P _
= + 5V , V
N N _
= - 5V ,
no l oad , onl y one channel sw i tchi ng
9
V
PP_
Supply Current I
PP_
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
PP_
= +80V, V
NN_
= -80V, pulse repetition
frequency = 10kHz, f = 10MHz, 4 periods,
no load, only one channel switching
0.6
mA
V
SHDN
= 0, CH1 and CH2 1
V
EN_
= V
DD
, V
SHDN
= V
DD
, CH1 and CH2 40 80
µA
V
E N _
= V
D D
, V
SHDN
= V
D D
, V
I N C _
= 0 or V
D D
,
V
I N N _
= V
I NP_
, f = 5M H z, V
N N _
= - 5V , V
P P _
= + 5V ,
no l oad , onl y one channel sw i tchi ng
9
V
NN_
Supply Current I
NN_
V
EN_
= V
DD
, V
SHDN
= V
DD
, V
INC_
= 0 or V
DD
,
V
PP_
= +80V, V
NN_
= -80V, pulse repetition
frequency = 10kHz, f = 10MHz, 4 periods,
no load, only one channel switching
0.6
mA
LOGIC INPUTS (EN_,
SHDN
, INN_, INP_, INC_)
Low-Level Input Voltage V
IL
0.25 x
V
DD
V
High-Level Input Voltage V
IH
0.75 x
V
DD
V
Logic-Input Capacitance C
IN
5pF
Logic-Input Leakage I
IN
V
IN
= 0 or V
DD
±1 µA
OUTPUT (OUT_)
No load at OUT_
V
NN_
V
PP_
Unprotected outputs (see the
Ordering
Information/Selector Guide
), 100mA load
V
NN_
+
1.5
V
PP_
-
1.5
OUT_ Output-Voltage Range
V
OUT_
Protected outputs (see the
Ordering
Information/Selector Guide
), 100mA load
V
NN_
+
2.5
V
PP_
-
2.5
V
I
OP _
= - 100m A, V
C C _
= + 12V ± 5%, D C - coup l ed 9 17
Low-Side Small-Signal Output
Impedance
R
OLS
I
OP _
= - 100m A, V
C C _
= + 5V ± 5%, D C - coup l ed 9.5 18
Ω

MAX4810CTN+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Timers & Support Products Dual Uni/Bi-polar Digital Pulser
Lifecycle:
New from this manufacturer.
Delivery:
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