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Product Detailed Parameters
- Description：5GBPS TYPEC DP ALT MODE REDRIVER
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Buffer, ReDriver
- Applications：USB
- Input：Differential
- Output：Differential
- Data Rate (Max)：8.1Gbps
- Number of Channels：2
- Delay Time：-
- Signal Conditioning：Input Equalization, Output De-Emphasis
- Voltage - Supply：3V ~ 3.6V
- Current - Supply：-
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：40-WFQFN Exposed Pad
- Supplier Device Package：40-WQFN (6x4)
- Capacitance - Input：10 pF
- Grade：-
- Qualification：-
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Overview
The TUSB546AI-DCIRNQT is a USB Type-C and DisplayPort Alternate Mode linear redriver and crosspoint switch manufactured by Texas Instruments. It supports data rates up to 8.1 Gbps for SuperSpeed USB and DP Alt Mode signals. The device operates within an ambient temperature range of -40°C to +85°C, designated by the 'A' suffix. It utilizes a 40-pin WQFN package with dimensions of 6x4 mm. Power consumption is typically around 242 mA at 3.3 V, resulting in approximately 800 mW maximum power dissipation. The component integrates I2C and GPIO interfaces for configuration.
Feature Summary
- Supports USB Type-C and DisplayPort Alternate Mode signal integrity extension
- Configurable via I2C or GPIO control interfaces
- Linear redriver architecture for low-latency signal regeneration
Applications
- USB Type-C docking stations
- DisplayPort expansion hubs
- High-speed peripheral connectivity modules
Procurement Notes
Verify the specific ordering suffix DCIRNQT corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the automotive-grade temperature rating aligns with the thermal management design of the target application board. Ensure ESD protection measures are adequate during handling due to the exposed pad thermal package.
Selection Notes
Select this component when designing systems requiring certified USB Type-C compliance with DP Alt Mode support. The automotive temperature range makes it suitable for harsh environments compared to commercial variants. Verify that the host controller supports the necessary I2C or GPIO signaling protocols for configuring the redriver channels effectively.
Part Context
This part belongs to the TUSB546 family of USB Type-C line drivers. It serves as a signal conditioning solution for high-speed differential pairs. The device complements USB Type-C controllers by extending trace lengths on PCBs without signal degradation. It is distinct from passive switches by providing active signal regeneration capabilities.
Replacement Considerations
TUSB546-DCI is a commercial grade equivalent. TUSB546A-DCIRNQR offers the same automotive specifications but in a different reel quantity. Verify pin compatibility before substitution.
