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LM3880MF-1AB
+Lista de MateriaisSupervisory Circuits
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FabricanteTexas Instruments
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Peça do Fabricante #LM3880MF-1AB
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Visão Geral
Description
Key features of the LM3880MF-1AB include its capability to sequence three independent output enable signals with a controlled delay between them. These delays can be programmed via external capacitors, allowing for flexibility in timing control based on application needs. The device operates over a wide voltage range and typically requires a single input voltage supply.
The LM3880MF-1AB is commonly used in microprocessor, FPGA, and ASIC power supply systems where proper sequencing is critical to prevent latch-up or other power-related issues. Its simplicity, reliability, and ease of implementation make it an attractive choice for designers looking to ensure orderly power sequencing in their circuits.
Equivalent
1. MAX6816/MAX6817/MAX6818 from Maxim Integrated – These are microprocessor supervisors with similar sequencing capabilities.
2. TPS3808 from Texas Instruments – A supervisor series with adjustable delay time.
3. ADM1186 from Analog Devices – Offers power supply sequencing functions.
Make sure to check the exact specifications and pin compatibility when considering alternatives.
Features
1. Power Sequencing: It manages the power-up sequence of three output signals with a controlled delay between each.
2. Input Voltage Range: Supports a wide input voltage range, making it suitable for various applications.
3. Low Quiescent Current: Consumes minimal power when in operation, enhancing energy efficiency.
4. Adjustable Delay: The delay between each output can be configured to meet specific timing requirements.
5. Reset Functionality: Includes a reset function to ensure outputs start in a known state during power-up.
6. Compact Package: Available in a small form-factor package (MSOP), which is ideal for space-constrained designs.
7. Temperature Range: Operates over a standard temperature range suitable for most environments.
These features make the LM3880MF-1AB an effective solution for systems that require precise power management and sequencing for multiple power rails.
Pinout
1. GND: Ground reference.
2. EN: Enable input to start the sequencing.
3. CT: Connects to an external capacitor to set the delay time.
4. RPD: Controls active discharge during power-down.
5. OUT1: Output for the first rail sequence.
6. OUT2: Output for the second rail sequence.
7. OUT3: Output for the third rail sequence.
8. VCC: Power supply input.
This configuration ensures the controlled and reliable power-up and power-down of system components, enhancing system stability and protection.
Manufacturer
Application
1. Consumer Electronics: Ensuring proper power-up and power-down sequences in devices like TVs and gaming consoles.
2. Computing Systems: Managing power supplies in servers, desktops, and laptops for reliable operation.
3. Telecommunications Equipment: Coordinating power sequences in base stations and network equipment.
4. Industrial Automation: Providing reliable power management in PLCs and control systems.
5. Medical Devices: Ensuring precise power sequencing for safe operation in critical equipment.
These applications benefit from the LM3880MF-1AB's ability to sequence multiple power rails with customizable timing, enhancing system stability and reliability.