MAX4806/MAX4807/MAX4808 19-4366 Rev 0 11/08 Dual, Unipolar/Bipolar, High-Voltage Digital Pulsers General Description Features The MAX4806/MAX4807/MAX4808 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 6 Output Impedance and 2A (min) Output pulsers feature independent logic inputs, independent high-voltage pulser outputs with active clamps, and Current independent high-voltage supply inputs. 20 Active Clamp The MAX4806/MAX4807/MAX4808 feature a 6 output Pulser and Clamp Overvoltage Protection impedance for the high-voltage outputs, and a 20 (MAX4806/MAX4807) impedance for the active clamp. The high-voltage out- puts are guaranteed to provide 2A of 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 independant 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 MAX4806 includes clamp output overvoltage pro- tection, while the MAX4807 features both pulser output TOP VIEW and clamp output overvoltage protection. The MAX4808 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 MAX4806/MAX4807/MAX4808 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 Applications C 46 INC2 GC2 C 47 24 INP2 DC2 Ultrasound Medical Flaw Detection V 23 EN2 48 EE2 Imaging Piezoelectric Drivers V 49 22 AGND DD Industrial Sensors MAX4806 V 50 21 SHDN SS Test Instruments MAX4807 V 51 20 EN1 EE1 MAX4808 Ordering Information/ C 52 19 INP1 DC1 Selector Guide C 53 18 INC1 GC1 V 54 17 INN1 CC1 OUTPUT *EP PROTECTED PIN- GND 55 16 V + CC1 PART CURRENT OUTPUTS PACKAGE (A) C 56 15 GND DP1 1 2 3 4 5 6 7 8 9 10 11 121314 MAX4806CTN+ OCP , OCN 2 56 TQFN-EP** OCP , OCN , MAX4807CTN+ 2 56 TQFN-EP** OP , ON TQFN 7mm x 7mm MAX4808CTN+* None 2 56 TQFN-EP** Note: All devices are specified over the 0C to +70C operat- *EP = EXPOSED PAD CONNECT EP TO V . ing temperature range. SS +Denotes a lead-free/RoHS-compliant package. *Future product. Contact factory for availability. **EP = Exposed pad. Warning: The MAX4806/MAX4807/MAX4808 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............-0.3V 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 OP , OCP , OCN , ON ...........(-0.3V + V ) to (-0.3V to V ) Storage Temperature Range .............................-65C to +150C 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 MAX4806/MAX4807/MAX4808 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 0V, V = 0V to (V + 200V), V the lower DD CC EE NN PP NN SS of V or V , T = T = T to T , unless otherwise noted. Typical values are at T = +25C.) (Note 3) 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 0 V 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 EN DD SHDN DD INC 100 350 V , V = V , f = 5MHz DD INN INP V = 0, channel 1 and channel 2 1 SHDN A V = V , V = V , channel 1 and EN DD SHDN DD 130 200 channel 2 V = V , V = V , V = 0 or EN DD SHDN DD INC V Supply Current I CC CC V , V = V , f = 5MHz, V = 5V, 18 DD INN INP CC V = 3V, only one channel switching DD mA V = V , V = V , V = 0 or EN DD SHDN DD INC V , V = V , f = 5MHz, V = 12V, DD INN INP CC 44 V = 3V, only one channel switching DD 2 MAX4806/MAX4807/MAX4808