MAX4810/MAX4811/MAX4812 19-4138 Rev 0 10/08 Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers General Description Features The MAX4810/MAX4811/MAX4812 integrated circuits Highly Integrated, High-Voltage, High-Frequency generate high-voltage, high-frequency, unipolar or bipo- Unipolar/Bipolar Pulser lar pulses from low-voltage logic inputs. These dual 9 Output Impedance and 1.3A (min) Output pulsers feature independent logic inputs, independent high-voltage pulser outputs with active clamps and Current independent high-voltage supply inputs. 27 Active Clamp The MAX4810/MAX4811/MAX4812 feature a 9 output Pulser and Clamp Overvoltage Protection impedance for the high-voltage outputs, and a 27 (MAX4810/MAX4811) impedance for the active clamp. The high-voltage out- puts are guaranteed to provide 1.3A output current. 0 to +220V Unipolar or 110V Bipolar Outputs All devices use three logic inputs per channel to control Matched Rise/Fall Times and Matched the positive and negative pulses and active clamp. Also Propagation Delays included are two independent enable inputs. Disabling EN ensures the output MOSFETs are not accidentally CMOS-Compatible Logic Inputs turned on during fast power-supply ramping. This allows 56-Pin, 7mm x 7mm, TQFN Package for faster ramp times and smaller delays between puls- ing modes. A low-power shutdown mode reduces power consumption to less than 1A. All digital inputs are CMOS compatible. Pin Configuration The MAX4810 includes clamp output overvoltage pro- tection, while the MAX4811 features both pulser output TOP VIEW and clamp output overvoltage protection. The MAX4812 does not provide overvoltage protection. See the Ordering Information/Selector Guide. 42 41 40 39 38 37 36 35 34 33 32 31 30 29 The MAX4810/MAX4811/MAX4812 are available in a C 28 GND DP2 43 56-pin (7mm x 7mm), TQFN exposed-pad package and GND 44 27 V are specified over the 0C to +70C commercial tem- CC2 V 45 26 INN2 perature range. CC2 25 C 46 INC2 Applications GC2 C 47 24 INP2 DC2 Ultrasound Medical Flaw Detection V 23 EN2 48 EE2 Imaging Piezoelectric Drivers V 49 22 AGND DD Cleaning Equipment MAX4810 Test Instruments V 50 21 SHDN SS MAX4811 V 51 20 EN1 EE1 MAX4812 Ordering Information/ C 52 19 INP1 DC1 Selector Guide C 53 18 INC1 GC1 V 54 17 INN1 CC1 *EP OUTPUT GND 55 16 V + CC1 PROTECTED PIN- PART CURRENT OUTPUTS PACKAGE C 56 15 GND DP1 (A) 1 2 3 4 5 6 7 8 9 10 11 121314 MAX4810CTN+ OCP , OCN 1.3 56 TQFN-EP** OCP , OCN , MAX4811CTN+ 1.3 56 TQFN-EP** OP , ON TQFN 7mm x 7mm MAX4812CTN+* None 1.3 56 TQFN-EP** Note: All devices are specified over the 0C to +70C operating *EP = EXPOSED PAD, CONNECT EP TO V . SS temperature range. +Denotes a lead-free/RoHS-compliant package. *Future productcontact factory for availability. **EP = Exposed pad. Warning: The MAX4810/MAX4811/MAX4812 are designed to operate with high voltages. Exercise caution. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE C C GP1 GP2 V V PP1 PP2 V V PP1 PP2 N.C. N.C. OP1 OP2 OCP1 OCP2 GND GND OCN1 OCN2 ON1 ON2 N.C. N.C. V V NN1 NN2 V V NN1 NN2 C C GN1 GN2 C C DN1 DN2Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers ABSOLUTE MAXIMUM RATINGS (Voltages referenced to GND.) C C , C Voltage......................................-0.3V to V DC , DP DN CC V Logic Supply Voltage........................................-0.3V to +6V Peak Current per Output Channel ........................................3.0A DD V Output Driver Positive Supply Voltage..........-0.3V to +15V Continuous Power Dissipation (T = +70C) (Note 1) CC A V Output Driver Negative Supply Voltage.........-15V to +0.3V 56-Pin TQFN (derate 40mW/C above +70C) ..........3200mW EE V High Positive Supply Voltage.......................-0.3V to +230V Thermal Resistance (Note 2) PP V High Negative Supply Voltage....................-230V to +0.3V ................................................................................25C/W NN JA V Voltage................................................(V - 250V) to V ...............................................................................0.8C/W SS PP NN JC V - V , V - V Supply Voltage............-0.6V to +250V Operating Temperature Range...............................0C to +70C PP1 NN1 PP2 NN2 INP , INN , INC , EN , SHDN Logic Input...-0.3V to V + 0.3V Junction Temperature......................................................+150C DD O O , O , O ..............(-0.3V + V ) to (-0.3V to V ) Storage Temperature Range .............................-65C to +150C P , CP LN N NN PP C Voltage............................(-0.3V + V ) to (+15V + V ) Lead Temperature (soldering, 10s) .................................+300C GN NN NN C Voltage .............................(+0.3V + V ) to (-15V + V ) GP PP PP C Voltage...........................................................-15V to +15V GC 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. 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. ELECTRICAL CHARACTERISTICS (V = +2.7V to +6V, V = +4.75V to +12.6V, V = -12.6V to -4.75V, V = -200V to 0, V = 0 to (V + 200V), V the lower of DD CC EE NN PP NN SS V or V , T = T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 3) (See Figures 8, 9, and 10.) NN1 NN2 A J MIN MAX A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS POWER SUPPLY (V , V , V , V , V ) DD CC EE PP NN Logic Supply Voltage V +2.7 +3 +6 V DD Positive Drive Supply Voltage V +4.75 +12 +12.6 V CC Negative Drive Supply Voltage V -12.6 -12 -4.75 V EE V + NN High-Side Supply Voltage V 0 V PP 220 Low-Side Supply Voltage V -200 0V NN V - V Supply Voltage 0 +220 V PP NN SUPPLY CURRENT (Single Channel) V /V = 0 , V = 0 1 INN INP SHDN V Supply Current I A DD DD V = V , V = V , V = 0 or V , EN DD SHDN DD INC DD 100 200 V = V , f = 5MHz INN INP V = 0, CH1 and CH2 1 SHDN A V = V , V = V CH1 and CH2 130 200 EN DD SHDN DD, V = V , V = V , V = 0 or V , EN DD SHDN DD INC DD V = V , f = 5MHz, V = 5V, V = 3V, 15 INN INP CC DD V Supply Current I CC CC only one channel switching mA V = V , V = V , V = 0 or V , EN DD SHDN DD INC DD V = V , f = 5MHz, V = 12V, V = 3V, 36 INN INP CC DD only one channel switching 2 MAX4810/MAX4811/MAX4812