USB5826CSLASHKD datasheet(33/65 Pages) MICROCHIP

33 / 65 page

USB5826C

DS00003187B-page 32



2019 - 2021 Microchip Technology Inc.

8.2

Battery Charging

The device can be configured by an OEM to have any of the downstream ports support battery charging. The hub’s role

in battery charging is to provide acknowledgment to a device’s query as to whether the hub system supports USB battery

charging. The hub silicon does not provide any current or power FETs or any additional circuitry to actually charge the

device. Those components must be provided externally by the OEM.

If the OEM provides an external supply capable of supplying current per the battery charging specification, the hub can

be configured to indicate the presence of such a supply from the device. This indication, via the

PRT_CTL[6:1] pins, is

on a per port basis. For example, the OEM can configure two ports to support battery charging through high current

power FETs and leave the other two ports as standard USB ports.

For additional information, refer to the Microchip USB5826C Battery Charging application note on the Microchip.com

USB5826C product page www.microchip.com/USB5826C.

FIGURE 8-4:

DFP TYPE-C PORT WITH GENERIC TYPE-C CONTROLLER AND INTERNAL MUX

(MODE 2)

FIGURE 8-5:

BATTERY CHARGING EXTERNAL POWER SUPPLY

USB Type-C

Internal Mux

Downstream Port

VBUS

SSTXA+

SSTXA-

SSRXA+

SSRXA-

SSTXB+

SSTXB-

SSRXB+

SSRXB-

D+

D-

CC1

CC2

GENERIC

PORT PWR

CTLR

POWER

OCS

SSTXA+

SSTXA-

SSRXA+

SSRXA-

SSTXB+

SSTXB-

SSRXB+

SSRXB-

D+

D-

PRTCTL

USB Type-C

UTC2000

UFP Mode

ENABLE

OCS#

PLUG_OR#

PPC_EN

CC1

CC2

C_ATTACH

ALT_MUX_EN

CC_POL

3.3V

SOC

VBUS[n]

INT

SCL

SDA

Microchip

Hub

DC Power

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