Datasheet > UPSS3880

UPSS3880

更新时间： 2024-11-22 14:51:59

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
7页	202K
描述
three-rail simple power sequencer

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UPSS3880 数据手册

UNISONIC TECHNOLOGIES CO., LTD

UPSS3880

Preliminary

CMOS IC

THREE-RAIL SIMPLE POWER

SEQUENCER



DESCRIPTION

The UTC UPSS3880 simple power supply sequencer offers the

easiest method to control power up sequencing and power down

sequencing of multiple Independent voltage rails. By staggering the

startup sequence, it is possible to avoid latch conditions or large in-rush

currents that can affect the reliability of the system.

SOT-26

Available in a 6-pin SOT-26 package, the Simple Sequencer

contains a precision enable pin and three open-drain output flags. The

open-drain output flags permit that they can be pulled up to distinct

voltage supplies separate from the sequencer V_DD(so long as they do

not exceed the recommended maximum voltage of 0.3V greater than

_DD), so as to interface with ICs requiring a range of different enable

signals.

When the UTC UPSS3880 is enabled, the three output flags will

sequentially release, after individual time delays, thus permitting the

connected power supplies to start up. The output flags will follow a

reverse sequence during power down to avoid latch conditions.



FEATURES

* Qualified for Automotive Applications

* Simple Solution for Sequencing 3 Voltage Rails from a Single Input

Signal

* Power-Up and Power-Down Control

* Low Quiescent Current of 25µA

* Input Voltage Range of 3.3V to 5.5V

* Standard Timing Options Available



ORDERING INFORMATION

Ordering Number

Lead Free

Package

SOT-26

Packing

Tape Reel

Halogen Free

UPSS3880L-AG6-xxx-R

UPSS3880G-AG6-xxx-R

www.unisonic.com.tw

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QW-R125-107.c

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