This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

LM3880MF-1AA/NOPB

3 Rail Simple Power Sequencer with Fixed Time Delay

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM3880MF-1AA/NOPB
Datasheet:

LM3880MF-1AA/NOPB Datasheet (PDF)
Supply voltage (min) (V):

2.7
Supply voltage (max) (V):

5.5
Iq (typ) (mA):

0.025
Time delay (ms):

2, 10, 16, 30, 60, 120
EDA/CAD Models:

Request Free CAD Models for LM3880MF-1AA/NOPB

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

LM3880MF-1AA/NOPB General Description

The LM3880 simple power supply sequencer offers the easiest method to control powerup sequencing and powerdown 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.

Available in a 6-pin SOT-23 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 (only if they do not exceed the recommended maximum voltage of 0.3 V greater than V_DD), so as to interface with ICs requiring a range of different enable signals. When the LM3880 is enabled, the three output flags sequentially release, after individual time delays, thus permitting the connected power supplies to start up. The output flags follow a reverse sequence during power down to avoid latch conditions.

EPROM capability allows every delay and sequence to be fully adjustable. Contact Texas Instruments to request a non-standard configuration.

Key Features

Simple solution for sequencing three voltage rails from a single input signal
Easily cascade up to three devices to sequence as many as nine voltage rails
Powerup and powerdown control
Tiny 2.9-mm x 1.6-mm footprint
Low quiescent current: 25 µA
Input voltage range: 2.7 V to 5.5 V
Standard timing options available

Specifications

Supply voltage (min) (V)	2.7	Supply voltage (max) (V)	5.5
Iq (typ) (mA)	0.025	Time delay (ms)	2, 10, 16, 30, 60, 120
Number of sequenced outputs	3	Rating	Catalog
Operating temperature range (°C)	-40 to 125	feature-number-of-supervisors	3
feature-maximum-reset-active-time-ms		feature-output-driver	Open Drain
feature-minimum-reset-threshold-voltage-v	1	feature-maximum-reset-threshold-voltage-v	1.4
feature-minimum-operating-supply-voltage-v	2.7	feature-maximum-operating-supply-voltage-v	5.5
feature-maximum-supply-current-ua		feature-maximum-power-dissipation-mw
feature-manual-reset	No	feature-battery-backup-switching	No
feature-packaging	Tape and Reel	feature-type	Power Supply Sequencer
feature-rad-hard		feature-pin-count	6
feature-cecc-qualified	No	feature-esd-protection	Yes
feature-military	No	feature-aec-qualified	Yes
feature-aec-qualified-number		feature-auto-motive	No
feature-p-pap	No	feature-eccn-code	EAR99
feature-svhc	No	feature-svhc-exceeds-threshold	No