IC manufacturers Texas Instruments

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Texas Instruments LM5030 | Demoboard TIDA-01352

400-W Continuous, Scalable, ±2.5- to ±150-V, Programmable Ultrasound Power Supply Reference Design

Overview

TopologyPush-Pull Converter symmetrical isolated
Input voltage24 V
Switching frequency100-500 kHz
Output 155 V / 2 A
IC revisionE2

Description

The TIDA-01352 enables modular and efficient power scaling capability by providing a solution for digitally programmable power supply for powering ultrasound transmit circuit. The design uses push-pull topology to generate high-voltage (HV) and low- (LV) or MID- voltage power supplies. The HV rails are programmable from ±50V to ±150V, whereas the LV or MID rails are programmable from ±2.5V to ±50V. The power supply is capable of providing a continous power of 100-W on each rail. The programmability is implemented using onboard, 12-bit digital-to-analog converters (DACs). All the power supply rails are capable of being synchronized to a master clock. The design is scalable and modular allowing same supply to be duplicated or removed depending on number of channels and number of levels of pulser. The reference design also consists of other LV power supplies necessary for the pulser operation. This reference design is ideal for the high-voltgae DC-DC boost stage to use in conjuction with the floating (post) regulator design TIDA-01371.

Features

  • High-efficiency (89% at full load with 24-V input) push-pull topology enables scalability for lower or higher power (channel counts)
  • Independent positive and negative voltage power supplies helps achieving bipolar functionality for up to 192 digital pulser and linear amplifier transmit channels
  • Modular design allows same supply to be duplicated or removed depending on number of levels for pulser
  • Capable of switching frequency synchronization with ultrasound master or system clock frequency - helps in better harmonics rejection
  • Onboard, 12-bit, quad DAC enables digital programmability for output from ±2.5V to ±150 V (each rail can support 100-W continuous power and 350-W peak power)
  • Common power supply for pulser driver (to support B-Mode, CW-Mode, and elastography mode), internal level-shifters, and logic enables consolidation to single board design

Typical applications

  • powering ultrasound transmit circuit

Products

Order Code Data­sheet Simu­lation Downloads Product seriesCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples
860080778023SPEC
7 files WCAP-ATLI Aluminum Electrolytic Capacitors470 µF 63 5000 -55 °C up to +105 °C 2225 296.1 8 5 13 30 Ammopack
750343547SPEC
4 files Transformer -40 °C up to +125 °C; including temp rise 27.94 Tray
750343548SPEC
4 files Transformer -40 °C up to +125 °C; including temp rise 27.94 Tray
750340744SPEC
Transformer 7.37 Tape and Reel
Order Code Data­sheet Simu­lation
860080778023SPEC
750343547SPEC
750343548SPEC
750340744SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Product seriesCVR
(V (DC))
Endurance
(h)
Operating TemperatureIRIPPLE
(mA)
ILeak
(µA)
DF
(%)
Pitch
(mm)
Ø D
(mm)
L
(mm)
Packaging Samples