Datasheet > ACT4910QW

ACT4910QW

更新时间： 2022-02-26 11:53:15

品牌	Logo	应用领域
技领 - ACTIVE-SEMI		/
页数	文件大小	规格书
34页	3110K
描述
Power Loss Protection with 6A eFuse

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ACT4910QW 数据手册

ACT4910QW

Rev 1.0, 15-Sept-2017

Power Loss Protection with 6A eFuse

BENEFITS and FEATURES

GENERAL DESCRIPTION

Wide 2.7-to-18V Operating Input Range

24V Max Input Blocking Voltage

Adjustable Bus Voltage Start-Up Slew Rate for In-

rush Current Control

Configurable Input power Failure Level

Programmable up to 10A Input Current Limit

Programmable 5V to 36V Boost Storage Voltage

36V@6A Synchronous Buck Supports 100% Duty

Cycle

Programmable up to 1.13MHz Buck Operating Fre-

quency for Small Inductor Size

Undetectable Transition from Input Supply to Ca-

pacitor Bank Power

Compatible with Different Types of Storage Caps:

Super Caps, Electrolytic, Tantalum, POSCAP

etc.

ADC Monitoring of Critical Signals

Autonomous Health Monitoring for Detection of

Earlier Storage Capacitor Failures

Configurable Interrupts to Inform Host for any

Faults/Status Change

The ACT4910 device is a highly integrated power loss

protection IC. It provides backup storage power in the

event of an input power failure. A built-in boost

converter provides high voltage energy storage to

minimize storage capacitor size requirements. The

built-in buck converter regulates the storage voltage to

a fixed output voltage. It contains internal, back-to-

back eFuse FETs to provide bi-directional input to

output isolation. The IC also provides hot swap and

inrush current control.

The ACT4910 is very flexible and can easily be

configured with I²C and external components. It

features programmable storage capacitor voltage to

optimize the storage capacitor sizing and system run

time. The internal ADC and health monitoring provide

an extra layer of protection and improve system

reliability and early capacitor failure notification. It

automatically checks the storage capacitor health and

notifies the user when the energy in the storage caps

is not sufficient for backup power. The ADC also

measures the input voltage, output voltage, storage

voltage, eFuse current, and die temperature. The built-

in synchronous buck converter maximizes energy

transfer from the storage caps to the system.

eFuse, Boost, and Buck UV/OV/OC Protection

Thermal Alert and Protection

Thermal Enhanced FCQFN 5x5-28 package

ACT4910 provides an I²C bus interface to allow MCU

control and monitoring. There are supervisor monitors

for the input voltage, output voltage, and storage

voltage. It is available with the thermal enhanced QFN

5x5 28 pins package.

APPLICATIONS

•

Solid State Drives

Industrial Applications

Backup Power

Hot Plug Devices

eFuse 17mΩ

Inrush Controller

Input 2.7V‐18V

Blocking up to 24V

2.7V‐18V

Health Monitor/

ADC

5V-36V

Caps

40mΩ

FET

System

Core/Flash

PMU

36V Buck/Boost

Controller

5V-36V

25mΩ

FET

Innovative Power^TM

ActiveSwitcher^TMis a trademark of Active-Semi

www.active-semi.com

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