MD1712 Datasheet PDF - Supertex

No Preview Available ! 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

No Preview Available ! 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 2

No Preview Available ! 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 3

No Preview Available ! 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 4

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