TPT7721-SO1R

Overview

The TPT7721-SO1R is a high-performance dual-channel digital isolator manufactured by 3PEAK. It features a data rate of up to 150 Mbps and an isolation rating of 3.75 kV RMS for the SOP-8 package, with a surge capability of 9.6 kV. The device offers a typical common-mode transient immunity of ±150 kV/μs and low propagation delay of 12 ns. Power consumption is typically 3 mA per channel at 1 Mbps. It operates on a wide supply voltage range of 2.25 V to 5.5 V and supports a junction temperature range from -40°C to +125°C.

Feature Summary

• Provides robust galvanic isolation with 3.75 kV RMS rating and 9.6 kV surge capability in SOP-8 packaging.
• Delivers high-speed signal transmission with 150 Mbps data rate and low 12 ns propagation delay.
• Ensures signal integrity under noisy conditions with typical ±150 kV/μs common-mode transient immunity.
• Supports flexible system integration with a wide 2.25 V to 5.5 V supply voltage range.

Applications

• Industrial automation control systems requiring reliable signal isolation
• Power electronics monitoring and gate drive circuits
• Medical equipment adhering to safety insulation standards
• Automotive electronic control units (ECUs) for noise immunity

Procurement Notes

Verify that the specific part number TPT7721-SO1R corresponds to the SOP-8 package variant with 3.75 kV RMS isolation. Confirm that the suffix 'SO1R' indicates the correct tape-and-reel packaging format if required for automated assembly. Ensure compatibility with the intended operating temperature range of -40°C to +125°C for the specific application environment.

Selection Notes

Select this component when dual-channel isolation is required with moderate speed up to 150 Mbps. It is suitable for applications needing strong surge protection (9.6 kV) and high CMTI. Choose this over wider packages if board space is limited, as the SOP-8 form factor is compact. Ensure the system voltage falls within the 2.25 V to 5.5 V range for proper operation.

Part Context

The TPT7721-SO1R belongs to the TPT772x family of dual-channel digital isolators from 3PEAK. This family includes variants with different isolation ratings and package options, such as WSOP packages offering 5 kV RMS ratings. The TPT7721 specifically denotes the non-inverting output configuration, distinguishing it from the TPT7720 which features default low outputs.

Replacement Considerations

Direct replacements must match the dual-channel architecture, 150 Mbps speed, and SOP-8 footprint. Verify that alternative components offer comparable 3.75 kV RMS isolation and similar propagation delays. Check for pin-to-pin compatibility and identical supply voltage ranges to ensure seamless integration without circuit redesign.