DS2482S-100+

Controllers Overview

The DS2482S-100+ is a single-channel I²C-to-1-Wire bridge device manufactured by Analog Devices Inc./Maxim Integrated. It interfaces standard or fast I²C masters to downstream 1-Wire slave devices, acting as a 1-Wire master. The device supports supply voltages from 2.9V to 5.5V and operates within a temperature range of -40°C to +85°C. It features an operating current of 750µA and utilizes an 8-pin SOIC package. Internal timers manage time-critical waveforms for both standard (16kbps) and overdrive (142kbps) speeds.

Controllers Feature Summary

• Provides bidirectional protocol conversion between I²C hosts and 1-Wire slaves without requiring host processor intervention for timing.
• Includes programmable strong pullup capabilities with an external MOSFET control output to support high-current 1-Wire devices.
• Generates slew-controlled edges on the 1-Wire bus to minimize line noise and reduce system electromagnetic interference.
• Features two binary address inputs to resolve potential conflicts when multiple bridge devices operate on the same I²C bus segment.

Controllers Applications

• Industrial sensors
• Medical instruments
• Printers

Controllers Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm package type and tape/reel specifications. Ensure the component matches the required voltage and temperature ratings for the target environment. Cross-reference the datasheet revision to confirm pinout compatibility before finalizing procurement orders.

Controllers Selection Notes

Select this component when an embedded application requires reliable communication with 1-Wire sensors or EEPROMs via an I²C interface. Consider the internal strong pullup limits and the availability of the PCTLZ pin for external power boosting if driving parasitically powered devices. Verify that the I²C clock speed requirements align with the supported standard and fast modes.

Controllers Part Context

This part belongs to the DS2482 series of 1-Wire masters. The 'S' designation indicates the SOIC package variant, while the '-100+' suffix typically denotes the commercial temperature grade and lead-free status. This specific model provides a single channel, distinguishing it from multi-channel variants like the DS2482S-800.

Controllers Replacement Considerations

The DS2482S-800+ serves as a verified multi-channel alternative within the same family. Direct substitution requires verifying pinout compatibility and ensuring the application does not require the additional channels provided by the 8-channel version.