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TSU6721
  • TSU6721
  • TSU6721

TSU6721

ACTIVE

USB Port Multimedia Load Switch Supports USB, UART, AUDIO, ID, MIC

Texas Instruments TSU6721 Product Info

1 April 2026 3

Parameters

Type

Passive mux

Function

USB 2.0

USB speed (Mbps)

480

Number of channels

2

Supply voltage (max) (V)

6.5

Supply voltage (min) (V)

3

Ron (typ) (mΩ)

6000

Input/output voltage (min) (V)

-1.5

Input/output voltage (max) (V)

3.6

Configuration

3:1

Features

Attach and Detach Interrupt, Audio Switch (Negative Rail Capability), BCv1.2 Charger Detection, Charging Capability, I2C interface, ID Bypass Switch, Impedance Detection, JIG and BOOT Support, UART, USB 2.0

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Supply current (max) (µA)

155

ESD HBM (typ) (kV)

4

Bandwidth (MHz)

510

Package

DSBGA (YFF)-25-4.84 mm² 2.2 x 2.2

Features

  • Switch Matrix
    • USB and UART Switch support USB 2.0 HS
    • Audio Switch with Negative Signal Capability
    • ID Bypass Switch
    • VBUS to MIC Switch
    • DP to MIC Switch to Support MCPC
  • Load Switch
    • 100 mΩ Load Switch
    • OTG Support
    • 28 V VBUS Rating with Over-voltage Protection
    • Programmable Overcurrent Limiter/Protection
  • Charger Detection
    • USB BCDv1.2 compliant
    • VBUS Detection
    • Data Contact Detection
    • Primary and Secondary Detection
  • Compatible Accessories
    • USB Chargers (DCP, CDP)
    • Apple Charger
    • USB Data Port
    • Audio Headset with MIC and Remote
    • Docking Support
    • Factory Cable
  • Additional Features
    • I2C Interface with Host Processor
    • Switches Controlled by Automatic Detection or Manual Control
    • Interrupts Generated for Plug/Unplug
    • Decoupling FET Switch to VBUS Added to Reduce Degradation on MIC Line
    • Support Control Signals used In Manufacturing (JIG, BOOT)
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model (A114-B, Class II)
    • 1500-V Charged-Device Model (C101)
  • IEC ESD Performance
    • ±8 kV Contact Discharge (IEC 61000-4-2) for VBUS/DP/DM/ID to GND
  • Switch Matrix
    • USB and UART Switch support USB 2.0 HS
    • Audio Switch with Negative Signal Capability
    • ID Bypass Switch
    • VBUS to MIC Switch
    • DP to MIC Switch to Support MCPC
  • Load Switch
    • 100 mΩ Load Switch
    • OTG Support
    • 28 V VBUS Rating with Over-voltage Protection
    • Programmable Overcurrent Limiter/Protection
  • Charger Detection
    • USB BCDv1.2 compliant
    • VBUS Detection
    • Data Contact Detection
    • Primary and Secondary Detection
  • Compatible Accessories
    • USB Chargers (DCP, CDP)
    • Apple Charger
    • USB Data Port
    • Audio Headset with MIC and Remote
    • Docking Support
    • Factory Cable
  • Additional Features
    • I2C Interface with Host Processor
    • Switches Controlled by Automatic Detection or Manual Control
    • Interrupts Generated for Plug/Unplug
    • Decoupling FET Switch to VBUS Added to Reduce Degradation on MIC Line
    • Support Control Signals used In Manufacturing (JIG, BOOT)
  • ESD Performance Tested Per JESD 22
    • 4000-V Human-Body Model (A114-B, Class II)
    • 1500-V Charged-Device Model (C101)
  • IEC ESD Performance
    • ±8 kV Contact Discharge (IEC 61000-4-2) for VBUS/DP/DM/ID to GND

Description

TSU6721 is a high performance USB port multimedia switch featuring automatic switching and accessory detection. The device connects a common USB port to pass audio, USB data, charging, On The Go (OTG) and factory mode signals. The audio path has negative signal capability includes left (mono/stereo), right (stereo) as well as microphone signals. Furthermore, TSU6721 is compatible with the MCPC specification.

TSU6721 features impedance detection which supports the detection of various accessories that are attached through DP, DM and ID pins of the USB connector. The switch is controlled by automatic switching or manually through I2C.

TSU6721 has an integrated low resistive Load Switch that is used to isolate the charger from the external connector. OverVoltage Protection and programmable OverCurrent Limiter/Protection are additional features included to the Load Switch.

The charger detection satisfies USB charger specification v1.2. In addition to DCP, CDP and SDP, the device also detects Apple Chargers.

Power for this device is supplied through VBAT of the system or through VBUS when attached. TSU6721 supports factory mode testing when a USB/UART JIG cable is used in development and manufacturing.

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