ACT2861 datasheet(83/97 Pages) QORVO

83 / 97 page

Data Sheet Rev. F, April 2022 | Subject to change without notice

83 of 97

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ACT2861

30V Buck-Boost Charger with Integrated MOSFETs and OTG

REG 0x10: OTG Mode Control 3 (R/W) (NVM)

Bit

Name

Description

Comment

OTG_OUTPUT_SLEW[1]

00: 1V/ms

01: 0.5V/ms

10: 0.33V/ms

11: 0.1V/ms

If OTG Mode is set to internal Feedback and output

voltage is changed using the OTG_VOUT register for

QC2.0/3.0 or USB PD voltage ramp, this register

controls the rate at which the output voltage changes.

OTG_OUTPUT_SLEW[0]

OTG_PULLDOWN_RAMP

0: Disable

1: Enable

If OTG_PULLDOWN_RAMP is set to 1 and OTG_I2C

is set to 0 for internal Feedback, an internal current

source pulls down on the OTG output during a ramp

down of the output voltage. This allows the OTG

output to meet the QC 2.0/3.0 and USB PD ramp

timing requirements.

OTG_PULLDOWN_OV

0: Disable

1: Enable

If OTG_PULLDOWN_OV is set to 1, the pulldown

current source pulls down on the OTG output during

any OV condition on the output.

OTG_BAT_ILIM[1]

00: Disable

01: 150% of

IFCHG

10: 200% of

IFCHG

11: 150% of

IFCHG

The OTG input current limit scaling factor relative to

the hardware programmed OLIM current setting.

OTG_BAT_ILIM[0]

DIS_OTG_VREG_FLT

0: Enable

1: Disable

If set to 0, an Overcurrent or UVLO fault on the VREG

will stop OTG mode. If set to 1, OTG mode will

continue with fault on VREG.

OTG_DIS_PFM

0: Enable

1: Disable

Disable PFM mode in OTG or Charge mode to set a

fixed switching frequency.

ACT2861 Datasheet(PDF) 83 Page - Qorvo, Inc

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