TSU6111RSVR

Overview

The TSU6111RSVR is a single-pole double-throw (SP2T) analog switch manufactured by Texas Instruments, designed for micro-USB applications. It integrates impedance detection capabilities to support USB and UART signal routing. The device operates within a supply voltage range of 1.65 V to 3.6 V. Key electrical parameters include an on-resistance of 2.8 ohms at 3.3 V and a charge injection of 0.4 pC. It features low leakage current and supports bidirectional signal flow. The component is housed in a 10-pin WSON package with a footprint of 2 mm x 2 mm.

Feature Summary

• Integrates hardware-based impedance detection for automatic port identification
• Supports high-speed digital signals including USB 2.0 and UART interfaces
• Provides bidirectional switching capability for data lines
• Maintains signal integrity through low on-resistance and capacitance

Applications

• Micro-USB host/device switching in mobile devices
• UART port selection in embedded systems
• USB accessory detection circuits
• Portable electronics requiring dynamic signal path management

Procurement Notes

Verify the complete part number including the suffix RSVR to ensure correct packaging and tape-and-reel configuration. Confirm RoHS compliance status and lead times directly with authorized distributors or Texas Instruments. Ensure ESD handling procedures are followed during storage and assembly due to the sensitive nature of the integrated detection circuitry.

Selection Notes

Select this component when designing circuits requiring automatic USB/UART port switching based on connected device impedance. Compare on-resistance and leakage specifications against system requirements. Consider the WSON package size constraints and thermal performance. Verify compatibility with the target supply voltage range and signal frequencies.

Part Context

The TSU6111 belongs to Texas Instruments' family of switches with impedance detection features. It is specifically engineered for micro-USB applications where automatic detection of host or device mode is required. This distinguishes it from standard analog switches that lack built-in detection logic. It complements other TI switches like the TSU6712 but offers a simplified SP2T configuration optimized for USB/UART use cases.

Replacement Considerations

Direct replacements may include the TSU6111ARSVR, which shares identical electrical characteristics but differs in packaging. Other compatible options within the TI portfolio include the TSU5511 or TSU5611 for more complex switching needs. Verify pin-to-pin compatibility and functional equivalence before substitution.