ACT2861 datasheet(95/97 Pages) QORVO

95 / 97 page

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

95 of 97

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ACT2861

30V Buck-Boost Charger with Integrated MOSFETs and OTG

REG 0x20: IRQ / OTG Status (R/W) (VM)

Bit

Name

Description

Comment

nIRQ_I2C_ERROR

0: I2C Fault

1: Masks I2C Fault

nIRQ

If set to 0, a fault on the I2C command / I2C bus

activates the nIRQ Pin

Setting to 1, masks the nIRQ

OTG_BATTERY_CC

0: OTG Input from

battery no in current

limit

1: OTG input from

battery is regulating in

Constant Current Mode

OTG Mode Only

Real Time status

This is the current measured on the VBAT side using

OSRP and OSRN during OTG Mode controlled by

the OTG_BAT_ILIM Register

OTG_OUTPUT_CC

0: OTG Output

regulating using voltage

loop

1: OTG output is

regulating in Constant

Current Mode

OTG Mode Only

Real Time status

This is the current measured on the VIN side using

ISRP and ISRN during OTG Mode controlled by the

OTG_CC Register

VBAT_CUTOFF_OTG

0: VBAT above

VBAT_CUTOFF_OTG

1: VBAT below

VBAT_CUTOFF_OTG

OTG Mode only

Real time status – For latched fault, see the Fault

Registers

VBAT_OV_OTG

0: VBAT below OV

1: VBAT above OV

OTG Mode only

Real time status – For latched fault, see the Fault

Registers

OTG_STATUS[2]

000: OTG_RST

001: OTG_SS

010: OTG_REG

011: OTG_HICCUP

100: OTG_LL_DIS

State machine for OTG status

Note: When not in OTG State, status is always

RESET (000)

101 – 111: Not Valid

OTG_STATUS[1]

OTG_STATUS[0]

ACT2861 Datasheet(PDF) 95 Page - Qorvo, Inc

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