STUSB4700 Datasheet, PDF (2/32 Pages) STMicroelectronics – Smart plugs and wall adapters

Contents
Contents
STUSB4700
1 Functional description .................................................................... 4
2 Inputs/outputs ................................................................................. 5
2.1 Pinout ................................................................................................ 5
2.2 Pin list ............................................................................................... 5
2.3 Pin description................................................................................... 7
2.3.1 CC1 / CC2 .......................................................................................... 7
2.3.2 RESET................................................................................................ 7
2.3.3 I2C interface pins................................................................................ 7
2.3.4 A_B_SIDE .......................................................................................... 7
2.3.5 VBUS_SENSE.................................................................................... 7
2.3.6 VBUS_EN_SRC ................................................................................. 7
2.3.7
2.3.8
2.3.9
VSYS..................................................................................................... 7
VDD ...................................................................................................... 7
GND.................................................................................................... 8
2.3.10 VVAR_ADDR0.................................................................................... 8
2.3.11 GPIO [4:0]........................................................................................... 8
2.3.12 VREG2V7 ........................................................................................... 8
2.3.13 VREG1V2 ........................................................................................... 8
2.3.14 VBUS_DISCH..................................................................................... 8
2.3.15 VCONN .................................................................................................. 8
3 Block descriptions ........................................................................ 10
3.1 CC interface .................................................................................... 10
3.2 BMC ................................................................................................ 10
3.3 Protocol layer .................................................................................. 10
3.4 Policy engine................................................................................... 10
3.5 Device policy manager .................................................................... 11
3.6 VBUS power path control .................................................................. 11
3.6.1 VBUS monitoring................................................................................. 11
3.6.2 VBUS discharge .................................................................................. 11
3.6.3 VBUS power path assertion ................................................................ 12
3.7 High voltage protection ................................................................... 12
3.8 Hardware fault management ........................................................... 12
3.9 Accessory mode detection .............................................................. 13
3.9.1 Audio accessory mode detection ..................................................... 13
3.9.2 Debug accessory mode detection .................................................... 13
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DocID030193 Rev 2