LM3881 Selling Leads, Price trend, LM3881 DataSheet download, circuit diagram from SeekIC.com

PinoutSpecificationsInput Min Voltage2.7 VoltInput Max Voltage5.5 VoltNumber of Regulators Able to Sequence3Power DownYesPower UpYesAbility to CascadeYesOn/Off PinYesRegTypeSequencerTemperature Max125 deg CTemperature Min-40 deg CAutomotive Selection GuideYes View Using CatalogDescriptionThe LM388...

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SeekIC No. : 004395503 Detail

LM3881: PinoutSpecificationsInput Min Voltage2.7 VoltInput Max Voltage5.5 VoltNumber of Regulators Able to Sequence3Power DownYesPower UpYesAbility to CascadeYesOn/Off PinYesRegTypeSequencerTemperature Max1...

LM3881 Data Sheet

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Part Number:: LM3881
Supply Ability:: 5000

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1~5000

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Negotiable

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Product Details

Description

Pinout

Specifications

Input Min Voltage	2.7 Volt
Input Max Voltage	5.5 Volt
Number of Regulators Able to Sequence	3
Power Down	Yes
Power Up	Yes
Ability to Cascade	Yes
On/Off Pin	Yes
RegType	Sequencer
Temperature Max	125 deg C
Temperature Min	-40 deg C
Automotive Selection Guide	Yes
View Using Catalog

Description

The LM3881 Power Sequencer offers the easiest method to control power up and power down of multiple power supplies (switching or linear regulators). 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.

Available in MSOP-8 package, the Power Sequencer contains a precision enable pin and three open drain output flags. Upon enabling the LM3881, the three output flags will sequentially release, after individual time delays, permitting the connected power supplies to startup. The output flags will follow a reverse sequence during power down to avoid latch conditions. Time delays are defined using an external capacitor and the output flag states can be inverted by the user.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM3881MM	CMOS7	0	16561	0	0	954000	4	270700104
LM3881MME	CMOS7	0	16561	0	0	954000	4	270700104
LM3881MMX	CMOS7	0	16561	0	0	954000	4	270700104

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

Application Notes

Title	Size in Kbytes	Date
AN-1785: Application Note 1785 LM3881 Power Sequencer Evaluation Board	608 Kbytes	30-Jan-08	Download

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More Application Notes

Title	Size in Kbytes	Date
AN-1677: Application Note 1677 LM1771 and LM3880 Based FPGA Power Supply Reference Design	177 Kbytes	14-Jan-08	Download
AN-1603: Application Note 1603 LM274X Reference Designs	431 Kbytes	6-Dec-07	Download
AN-1603 (Chinese): Application Note 1603 LM274X Reference Designs	482 Kbytes		640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">
AN-1491: Application Note 1491 LM3880 Power Sequencer Demo Board	1703 Kbytes	30-Nov-06	Download
AN-1192: Application Note 1192 Overture™ Series High Power Solutions	548 Kbytes	15-Jun-04	Download
AN-898: Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection	1412 Kbytes	20-Sep-02	Download
AN-898 (Japanese): Application Note 898 Audio Amplifiers Utilizing: SPiKe Protection 640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram">	249 Kbytes

If you have trouble printing or viewing PDF file(s), see Printing Problems.

LM3881

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