ACT8846 datasheet(6/44 Pages) ACTIVE-SEMI

6 / 44 page

ACT8846

Rev 7.0 06-Dec-2017

Innovative PowerTM

6 -

www.active-semi.com

ActivePMUTM is a trademark of Active-Semi.

I2CTM is a trademark of NXP.

PIN DESCRIPTIONS CONT’D

NAME

DESCRIPTION

SW4

Switch Node for REG4.

GP14

Power Ground for REG1 and REG4. Connect GP14, GP2, GP3, and GA together at a

single point as close to the IC as possible.

SW1

Switch Node for REG1.

FB1

Output Feedback Sense for REG1. For the adjustable output voltage options, connect

this pin to the center of the output feedback resistor divider for voltage setting,

connect this pin to the output directly to regulate the output voltage at 1.2V.

VP1

Power Input for REG1. Bypass to GP14 with a high quality ceramic capacitor placed

as close to the IC as possible.

nPBIN

Master Enable Input. Drive nPBIN to GA through a 50kΩ resistor for 32ms to enable

the IC. Drive nPBIN to GA through a 50kΩ resistor for 10 seconds to disable the IC.

Drive nPBIN directly to GA to assert a Manual-Reset condition.

PWRHLD

Power Hold Input, enable input for REG1, REG2, REG4, REG5, REG6, REG8 and

REG10. PWRHLD is internally pulled down to GA through a 900kΩ resistor.

nRSTO

Open-Drain Reset Output.

nIRQ

Open-Drain Interrupt Output.

GPIO6

General Purpose I/O #6. Configured as PWM LED driver output for up to 6mA current

with programmable frequency and duty cycle. See the PWM LED Drive section for

more information.

GPIO5

General Purpose I/O #5. Configured as PWM LED driver output for up to 6mA current

with programmable frequency and duty cycle. See the PWM LED Driver section for

more information.

OUT13

REG13 output. Bypass it to ground with a 0.47µF capacitor.

OUT7

REG7 output. Bypass it to ground with a 2.2µF capacitor.

GPIO4

General Purpose I/O #4. Configured as PWM LED driver output for up to 6mA current

with programmable frequency and duty cycle. See the PWM LED Driver section for

more information.

OUT6

REG6 output. Bypass it to ground with a 2.2µF capacitor.

INL1

Power Input for REG5, REG6, REG7.

OUT5

REG5 output. Bypass it to ground with a 2.2µF capacitor.

GPIO3

General Purpose I/O #3. Configured as PWM LED driver output for up to 6mA current

with programmable frequency and duty cycle. See the PWM LED Drier section for

more information.

GPIO2

General Purpose I/O #2. Configured as VSELR4 for Voltage Selection of REG4. Drive

to logic low to select default output voltage. Drive to logic high to select secondary

output voltage.

GPIO1

General Purpose I/O #1. Configured as VSELR3 for Voltage Selection of REG3. Drive

to logic low to select default output voltage. Drive to logic high to select secondary

output voltage.

OUT3

Output Voltage Sense for REG3.

47,48

VP3

Power input for REG3. Bypass to GP3 with a high quality ceramic capacitor placed as

close to the IC as possible.

Exposed Pad. Must be soldered to ground on PCB.



: Only for ACT8846QM468.

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