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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
| Topology | Push-Pull Converter symmetrical isolated |
| Input voltage | 24 V |
| Switching frequency | 100-500 kHz |
| Output 1 | 55 V / 2 A |
| IC revision | E2 |
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
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | VR(V (DC)) | Endurance(h) | IRIPPLE(mA) | ILeak(µA) | DF(%) | Pitch(mm) | Ø D(mm) | L(mm) | Packaging | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-ATLI Aluminum Electrolytic Capacitors, 470 µF, 63 V (DC) | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-ATLI Aluminum Electrolytic Capacitors | Capacitance470 µF | Rated Voltage63 V (DC) | Endurance 5000 | Ripple Current2225 mA | Leakage Current296.1 µA | Dissipation Factor8 % | Pitch5 mm | Diameter13 mm | Length30 mm | PackagingAmmopack | ||||
 | 750343547 | Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | – | – | Length27.94 mm | PackagingTray | ||
 | 750343548 | Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | – | – | Length27.94 mm | PackagingTray | ||
 | 750340744 | Transformer, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | – | – | – | – | – | – | – | – | Length7.37 mm | PackagingTape and Reel |