ACT4921 datasheet(10/35 Pages) QORVO

10 / 35 page

Data Sheet Rev. B, January 2020 | Subject to change without notice

10 of 35

www.qorvo.com

ACT4921

Power Loss Protection with 6A eFuse

INTERNAL EFUSE

(VIN = 5V, TA = 25°C, unless otherwise specified)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

Normal Mode

Operating Voltage Range

2.6

eFuse On-Resistance

ISW = -2A, VIN= 3.3V or 5V, TJ = 25°C

mΩ

ISW = -2A, VIN= 3.3V or 5V, TJ = 100°C

mΩ

Blocking FET On-Resistance

IOUT = 2A, VIN= 3.3V or 5V, TJ = 25°C

mΩ

IOUT = 2A, VIN= 3.3V or 5V, TJ = 100°C

mΩ

Programmable eFuse Current

Limit Range

VIN = 5V, Configured using ISET pin,

Triggers nIRQ Pin

eFuse Current Limit Accuracy

-10

+10

Blocking FET Current Limit

VOUT-VB > 560mV or at initial startup

300

VOUT-VB < 560mV except at initial startup

1800

ISET Monitor Current Ratio

ISET current divided by eFuse current

1/20,000

eFuse Overcurrent Detection Deglitch

µs

eFuse Overcurrent Current Shutdown

Shuts down after deglitch time and stays off for

Off Time

Current Limit Restart Time

100

eFuse Soft start

CSS = 10nF

5.94

6.6

7.26

mV/us

EN Input Low

VIO = 1.8V

0.58

EN Input High

VIO = 1.8V

1.22

ACT4921 Datenblatt(PDF) 10 Page - Qorvo, Inc

ACT4921 Datenblatt(HTML) 10 Page - Qorvo, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

Datenblatt Download

Link URL