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RT8979

Richtek
Part Number RT8979
Manufacturer Richtek
Description 4:1 Micro USB Switches
Published Sep 10, 2023
Detailed Description ® RT8979 4:1 Micro USB Switches with Accessory Detection General Description The RT8979 is a USB port accessory detect...
Datasheet PDF File RT8979 PDF File

RT8979
RT8979

Overview
® 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.
07 (BSC) Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Marking Information 0V YM DNN 0V : Product Code YMDNN : Date Code 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 Applications  Mobile Applications  Smart Handheld device  Tablets Pin Configuration (TOP VIEW) A1 A2 DP2 DP1 A3 DM1 A4 MHL _D- A5 MHL _D+ B1 B2 DM2 TxD B3 B4 B5 RxD CBUS DM _CON C1 C2 C3 C4 C5 VDDIO INTB JIG ID_BYP DP _CON D1 D2 D3 D4 D5 SCL CHGDET BOOT ID ID _CON2 _CON1 E1 E2 E3 E4 E5 SDA GND VBUS VBAT VBAT WL-CSP 25B 2.
07x2.
07 (BSC) Copyright ©2021 Richtek Technology Corporation.
All rights reserved.
DS8979-00 May 2021 is a registered trademark of Richtek Technology Corporation.
www.
richtek.
com 1 RT8979 Functional Pin Description Pin No.
A1 A2 A3 A4 A5 B1 B2 B3 B4 B5 ...


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