MAX3646ETG

Laser Drivers Overview

The MAX3646ETG is a single-channel laser driver IC designed for optical transmitters operating at data rates from 155 Mbps to 622 Mbps. It supports SFF and SFP form factors with a supply voltage range of 2.97V to 3.63V. Key electrical parameters include a typical supply current of 47 mA, modulation current up to 85 mA, and bias current up to 100 mA. The device is housed in a 24-TQFN (4x4) package with an exposed pad for thermal management. It operates within a temperature range of -40°C to +85°C.

Laser Drivers Feature Summary

• Supports low-speed optical transmission standards including SONET/SDH and Fibre Channel
• Integrated bias control loop for stable laser operation
• Designed for compact SFF/SFP module integration

Laser Drivers Applications

• SONET/SDH optical transceivers
• Fibre Channel modules
• SFF and SFP optical transmitters

Laser Drivers Procurement Notes

Verify component authenticity through authorized channels as the part is discontinued. Confirm RoHS compliance status and check for available surplus stock from verified distributors. Ensure the specific suffix matches design requirements and validate datasheet revisions before procurement.

Laser Drivers Selection Notes

Select this driver for applications requiring 622 Mbps or lower data rates. Verify compatibility with the target laser diode's electrical characteristics. Consider thermal performance due to the TQFN package. Evaluate alternative drivers if higher speed or different voltage levels are required.

Laser Drivers Part Context

Part of the MAX3646 family of laser drivers. Manufactured by Analog Devices Inc./Maxim Integrated. The ETG suffix indicates the TQFN-24 package type. This component serves as a transmitter driver in fiber optic communication systems.

Laser Drivers Replacement Considerations

The MAX3646ETG+ is a lead-free variant of the same functional device. Check pinout and parameter compatibility when substituting.