SY5817 HV Pulser Selection: 8-Ch Tri-Level Ultrasound Transmit

In portable medical ultrasound, NDT and piezo drive systems, the high-voltage pulser turns digital stimuli into bipolar / tri-level HV pulses—driving energy, harmonic content and probe life. When import lead times or cost move, teams need a verifiable domestic second source.

Synergy SY5817 is an 8-channel, tri-level, high-speed HV pulser with integrated active T/R switch and fast return-to-zero damping.

Key capabilities

• Output: 0 to ±100V; peak current ~±2A
• 8-channel tri-level pulses with active T/R
• Clock up to ~200MHz LVDS/LVCMOS
• Logic: 1.8V–5V CMOS
• Symmetric pulses, thermal protection, POR
• Package: 64-lead QFN 9×9mm

Selection checklist

1. Voltage / current vs probe drive
2. Tri-level + RTZ ringing control
3. Active T/R integration (portable area/BOM)
4. Clock / interface timing
5. Thermal / protection
6. Channel count and QFN layout

Pulser vs HV analog switch

SY5817 generates transmit pulses; multi-channel probe mux often needs Synergy HV switches (SY2160/SY2162, SY232x, SY264x). See also the Synergy HV switch alternative guide.

Resources

SY5817 product page & datasheet

Summary

Qualify SY5817 on voltage/current, RTZ, T/R, clock and thermal design, then co-validate with the HV switch matrix for a complete front-end second-source plan.