DS2482X-101+T

Controllers Overview

The DS2482X-101+T is a single-channel I²C-to-1-Wire bridge device manufactured by Analog Devices Inc./Maxim Integrated. It interfaces directly to standard (100kHz max) or fast (400kHz max) I²C masters for bidirectional protocol conversion. The device supports both standard and overdrive 1-Wire communication speeds using internal, factory-trimmed timers. Key electrical parameters include an operating voltage range of 2.9V to 5.5V and an operating temperature range of -40°C to +85°C. Supply current is typically 750µA, reducing to 1µA in sleep mode. The component is housed in a WLP-9 package.

Controllers Feature Summary

• Provides bidirectional protocol conversion between I²C masters and downstream 1-Wire slave devices.
• Features programmable strong pullup capabilities with an output to control external MOSFETs for enhanced power delivery.
• Includes slew-rate control on rising and falling 1-Wire edges to minimize line noise and system EMI.
• Supports low-power operation through a dedicated sleep mode that minimizes power consumption when the device is not in use.

Controllers Applications

• Industrial sensors
• Medical instruments
• Cell phones and PDAs

Controllers Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct package type and revision level. Confirm interface compatibility with the target I²C bus specifications before integration. Check for any regional distribution restrictions or supply limitations associated with this specific part number variant.

Controllers Selection Notes

Select this component when a microcontroller requires a reliable bridge to manage multiple 1-Wire slaves without complex timing generation. Ensure the application benefits from the integrated sleep mode for power-sensitive designs. Verify that the WLP-9 package footprint aligns with the PCB layout constraints and that the I²C address configuration meets system requirements.

Controllers Part Context

This part belongs to the DS2482X series of serial-to-1-Wire bridges. It shares core functionality with variants like the DS2482S-100 but differs in packaging and specific feature sets such as the inclusion of a sleep mode. The X-series designation typically indicates the WLP package format used in space-constrained applications.

Controllers Replacement Considerations

DS2482S-100+T&R: Single-channel bridge in SOIC package without sleep mode. DS2482X-100+U: Single-channel bridge in WLP package without sleep mode. DS2482-800: Multi-channel bridge variant.