ACT8870 datasheet(44/49 Pages) QORVO

44 / 49 page

ACT8870

Advanced PMU for Microcontrollers

and Solid State Drive Applications

Data Sheet Rev. 7.0, Feb. 18, 2020 | Subject to change without notice

44 of 49

www.qorvo.com

nRESET_AUX1

nRESET_AUX1 is asserted low when any regulator is out of regulation. The reset timing is 1991us. Note that in the

default configuration, nRESET_AUX1 goes low when the IC enters Sleep mode. If the user requires nRESET_AUX1 to

stay high in Sleep mode, write a 1 into register 0x00h, bit 7.

EXT_PG

EXT_PG is used for Buck2 boot voltage. See the Buck2 VID Boot Voltage section above.

nRESET_AUX2

nRESET_AUX2 is used for Buck3 boot voltage. See the Buck3 VID Boot Voltage section above.

MODE

The MODE pin must be tied to ground.

GPIO

The GPIO pin must be tied to ground.

Default Mask Settings

CMI 104 Default Mask Settings

nRESET

nRESET_AUX1

nRESET_AUX2

VIN_OV

IRQ

POK

Thermal

Shutdown

Masked

Unmasked

Masked

Unmasked

Device ID

The CMI 104 Device ID (register 0x7Dh) = 0xDh

I2C Address

The CMI 104 7-bit I2C address is 0x5Ah. This results in 0xB4h for a write address and 0xB5h for a read address.

ACT8870 Datasheet(PDF) 44 Page - Qorvo, Inc