LM3880MF-1AA

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LM3880MF-1AA

IC PWR SUPPLY SEQUENCER SOT23-6

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規格

Package Tape & Reel (TR),Cut Tape (CT),Bulk
ProductStatus Not For New Designs
Applications Power Supply Sequencer
Voltage-Supply 2.7V ~ 5.5V
Current-Supply 25 µA
OperatingTemperature -40°C ~ 125°C
MountingType Surface Mount
Package/Case SOT-23-6

概述

Description

The LM3880MF-1AA is a power management integrated circuit (IC) from Texas Instruments designed to supervise and sequence power supplies in electronic systems. It is part of the LM3880 series of simple power sequencers. This device is particularly useful in applications where multiple voltage rails are used, ensuring they power up and down in an orderly fashion to prevent damage or malfunction.
Key features of the LM3880MF-1AA include:
1. Supply Voltage: It operates from a single voltage supply, typically between 2.7V and 5.5V.
2. Output Channels: It provides three open-drain outputs to control external power supply enable pins, sequenced with a fixed delay.
3. Fixed Delays: The device offers fixed delay times between each channel's activation, which simplifies design and reduces the need for additional components.
4. Compact Package: The IC is available in a small SOT-23 package, making it suitable for space-constrained applications.
5. Applications: Commonly used in consumer electronics, telecommunications, and computing systems for power management.
Overall, the LM3880MF-1AA is ideal for ensuring reliable and efficient power sequencing in multi-rail systems.

Features

The LM3880MF-1AA is a simple power supply sequencing device designed to manage the order in which power is applied to various components in a system. Key features include:
1. Triple Outputs: Offers three open-drain outputs for sequencing three supplies.
2. Precision Delays: Provides programmable delay times between outputs to ensure proper sequencing.
3. Small Package: Available in a compact SOT-23 package, making it suitable for space-constrained applications.
4. Wide Operating Voltage: Supports an input voltage range typically from 2.7V to 6V.
5. Adjustable Timing: Delay periods are customizable using external capacitors.
6. Enable Input: Includes an enable pin to control the sequencing operation.
7. Low Current Consumption: Designed for low quiescent current to enhance power efficiency.
8. Reset Functionality: Integrates a power-on reset feature with a fixed delay time.
9. Application Flexibility: Suitable for use in applications requiring controlled power sequencing, such as multi-voltage microprocessor systems.
These features make the LM3880MF-1AA ideal for applications that require precise power sequencing to ensure system stability and reliability.

Package

The LM3880MF-1AA is a simple power sequencing controller from Texas Instruments. It is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package, specifically referred to as SOIC-8. This type of package is commonly used for integrated circuits and provides a compact and cost-effective solution for circuit design.

Pinout

The LM3880MF-1AA is a simple power sequencing device manufactured by Texas Instruments. It is typically offered in an 8-pin VSSOP (Very Thin Shrink Small Outline Package). The primary function of the LM3880 is to sequence the enabling of three power supplies in a specific order with adjustable delays between each one. This is useful in systems where correct power-up sequencing is crucial to prevent damage or ensure proper operation of the devices being powered.
Key functions include:
1. Enable Inputs (EN): Activates the sequencing operation.
2. Reset Outputs (RSTA, RSTB, RSTC): These outputs sequence the enabling of downstream power supplies or other circuitry.
3. Adjustable Delay: The device allows configuration of the delay between each enable signal through an external capacitor.
The LM3880MF-1AA helps in managing multiple power supplies in a system by providing a controlled sequence of power-on events, ensuring that each subsystem is powered up in the correct order.

Manufacturer

The manufacturer of the LM3880MF-1AA is Texas Instruments. Texas Instruments is a global semiconductor company that designs and manufactures a wide range of products, including integrated circuits, microcontrollers, and sensors. The company is known for its innovation in analog and embedded processing components, serving various industries such as automotive, consumer electronics, and industrial applications.

Application

The LM3880MF-1AA is a power management device typically used for sequencing multiple power rails in embedded systems. Its application areas include consumer electronics, communications equipment, computing systems, and industrial automation. This device is particularly useful in scenarios where precise power-up and power-down sequences are required to ensure system stability and prevent damage to components.

Equivalent

The LM3880MF-1AA is a simple power supply sequencer. Equivalent products include the Maxim Integrated MAX16054, Texas Instruments' LM317 sequencer configurations, and potentially similar components from Analog Devices and Microchip Technology that offer comparable power sequencing functions. However, ensure to check the specific sequencing requirements and pin compatibility when selecting a substitute.

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