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RT8979 - 4:1 Micro USB Switches

Description

The RT8979 is a USB port accessory detector and switch (USB1, USB2, UART & MHL).

The RT8979 adopts I2C bus for control and also uses an internal method to determine the connected device.

The RT8979 provides a device detection function by using the USB ID signal pin and the VBUS voltage.

Features

  • Hi-Speed USB Operation (USB1 & USB2).
  • UART & MHL Switch.
  • Interrupt for Device Insertion and Removal.
  • Factory Support.
  • 28V Maximum Rating for DC Adapter.
  • I2C Controlled Interface.
  • DP_CON/DM_CON TVS Diode Integrated for Surge Protection Up to ±15V.
  • ID_CON TVS Diode Integrated for Surge Protection Up to ±20V.
  • Battery Charger Detection 1.2.

📥 Download Datasheet

Datasheet preview – RT8979

Datasheet Details

Part number RT8979
Manufacturer Richtek
File Size 363.50 KB
Description 4:1 Micro USB Switches
Datasheet download datasheet RT8979 Datasheet
Additional preview pages of the RT8979 datasheet.

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Full PDF Text Transcription

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® RT8979 4:1 Micro USB Switches with Accessory Detection General Description The RT8979 is a USB port accessory detector and switch (USB1, USB2, UART & MHL). The RT8979 adopts I2C bus for control and also uses an internal method to determine the connected device. The RT8979 provides a device detection function by using the USB ID signal pin and the VBUS voltage. The ID pin resistance and VBUS voltage determine the unique detection method for various accessory. The host microprocessor adopts I2C to control the switch position and read the results of the accessory detection. The RT8979 also detects USB chargers including dedicated chargers (D+/D- shorted) and high power host/hub chargers. Ordering Information RT8979 Package Type WSC : WL-CSP-25B 2.07x2.
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