HDL6V5541

Specialized ICS Overview

The ABLIC HDL6V5541 is a four-channel, unconditional five-level, high-voltage, high-speed pulser with active ground damping and active T/R switches for medical ultrasound imaging. It supports output voltages from 0 to ±100V and peak currents up to ±2.0A without blocking diodes. The device operates at frequencies up to 20MHz with a 1.8V to 5V CMOS logic interface. Key features include mutually symmetrical pulse waveforms for low distortion, a 3-to-6 decoder, thermal protection, and latch-up-free SOI CMOS technology. It is housed in a 64-lead 9x9mm QFN package.

Specialized ICS Feature Summary

• Quad-channel 5-level pulser with ±100V output and ±2.0A peak current capability
• Integrated active T/R switch with 10Ω on-state resistance
• Supports clock mode (up to 100MHz) and transparent mode operation
• Low second-order harmonic distortion (-40 dBc) via symmetrical waveform design

Specialized ICS Applications

• Medical ultrasound imaging systems
• Multi-channel ultrasound transducer drivers
• High-frequency ultrasonic testing equipment

Specialized ICS Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature range. Confirm that the component meets RoHS compliance requirements as stated in the datasheet. Check for any specific handling instructions related to the exposed thermal pad on the 64-QFN package during assembly.

Specialized ICS Selection Notes

Select this component for applications requiring precise 5-level pulse generation with active ground damping. Ensure the system can support the required floating gate drive supplies (VFP/VFN) derived from the main HV rails. Verify that the logic interface voltage (1.8V to 5V) matches the control system's output levels.

Specialized ICS Part Context

This part belongs to ABLIC's series of ultrasound digital transmit pulsers designed for high-performance medical imaging. It integrates MOSFET gate drive buffers and high-current MOSFETs into a single monolithic structure, reducing the need for external discrete components typically found in older pulser designs.

Specialized ICS Replacement Considerations

No direct public substitute part numbers are documented for this specific model. When evaluating alternatives, compare the channel count, maximum output voltage, peak current capabilities, and package dimensions to ensure mechanical and electrical compatibility.

Specialized ICS FAQ

What is the maximum operating frequency of the HDL6V5541?

The device supports an input clock frequency of up to 100MHz in clock mode. The output frequency range can reach up to 20MHz under specific load conditions.

How does the HDL6V5541 handle thermal protection?

The IC includes a thermal protection feature that activates when the junction temperature exceeds approximately 110°C. It provides an open-drain THP output signal to indicate a thermal fault condition.

What is the purpose of the active ground damping feature?

Active ground damping helps reduce ringing and overshoot in the output pulses by providing a controlled path to ground, improving waveform fidelity and reducing second-order harmonic distortion.