Overview
The TS3USB221A-Q1 is a high-speed, ESD-protected USB 2.0 (480 Mbps) 1:2 multiplexer/demultiplexer switch designed by Texas Instruments. This device is specifically tailored for automotive applications, including USB hubs and phone-controlled automotive infotainment systems. It features a wide bandwidth of 900 MHz, ensuring minimal edge and phase distortion of high-speed USB signals. The switch is bidirectional, offering low bit-to-bit skew and high channel-to-channel noise isolation, making it compatible with various USB standards. The TS3USB221A-Q1 is AEC-Q100 qualified, operates over a temperature range of –40°C to 125°C, and is available in a compact UQFN package (2 mm × 1.5 mm).
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2.3 | 3.6 | V | |
| VI/O Data Input/Output Voltage | 0 | 5.5 | V | |
| Operating Free-Air Temperature | –40 | 125 | °C | |
| ON-State Resistance (rON) | 16 | Ω | ||
| ΔrON | 0.2 | Ω | ||
| Cio(on) | 6 | pF | ||
| Bandwidth | 900 | MHz | ||
| ESD Human-Body Model (HBM) | ±2000 | V | ||
| ESD Charged-Device Model (CDM) | ±750 (corner pins), ±500 (other pins) | V |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature range of –40°C to 125°C.
- ESD protection cells on all pins, with HBM classification Level H2 and CDM classification Level C5.
- Low power mode with power consumption reduced to 1 µA when the bus-switch enable pin OE is disabled.
- High bandwidth of 900 MHz, ensuring minimal signal distortion.
- Low ON-state resistance (rON) of 16 Ω maximum and ΔrON of 0.2 Ω typical.
- Compatible with high-speed USB 2.0 (480 Mbps) standards).
- 1.8-V compatible control-pin inputs and VI/O accepting signals up to 5.5 V).
- Available in a compact UQFN package (2 mm × 1.5 mm)).
Applications
- Routing high-speed USB signals in automotive USB hubs and controllers).
- Phone-controlled automotive infotainment systems).
- Expanding limited USB I/Os in various USB applications by switching between multiple USB buses).
- USB Type-C™ systems, optimizing the handling of USB 2.0 D+/- lines).
Q & A
- What is the primary function of the TS3USB221A-Q1?
The TS3USB221A-Q1 is a high-speed USB 2.0 (480 Mbps) 1:2 multiplexer/demultiplexer switch designed for switching high-speed USB signals in automotive applications.
- What is the operating temperature range of the TS3USB221A-Q1?
The device operates over a temperature range of –40°C to 125°C.
- What is the ESD protection level of the TS3USB221A-Q1?
The device has ESD protection with HBM classification Level H2 and CDM classification Level C5.
- How does the low power mode work in the TS3USB221A-Q1?
The low power mode reduces power consumption to 1 µA when the bus-switch enable pin OE is disabled.
- What is the bandwidth of the TS3USB221A-Q1?
The device has a high bandwidth of 900 MHz.
- What package type is the TS3USB221A-Q1 available in?
The device is available in a compact UQFN package (2 mm × 1.5 mm).
- Is the TS3USB221A-Q1 compatible with high-speed USB 2.0 standards?
Yes, the device is compatible with high-speed USB 2.0 (480 Mbps) standards.
- What are some typical applications of the TS3USB221A-Q1?
Typical applications include routing high-speed USB signals in automotive USB hubs, phone-controlled automotive infotainment systems, and expanding limited USB I/Os in various USB applications.
- How should the digital control pins S and OE be configured to avoid undesired switch positions?
Texas Instruments recommends pulling the digital control pins S and OE up to VCC or down to GND to avoid undesired switch positions.
- What are the recommended layout guidelines for the TS3USB221A-Q1?
Supply bypass capacitors should be placed close to the VCC pin, and high-speed D+/D- traces should be matched in length and kept no more than 4 inches to maintain eye diagram performance.
