Overview
The LM3880MFX-1AE/NOPB, produced by Texas Instruments, is a simple power supply sequencer designed to control the power-up and power-down sequencing of multiple independent voltage rails. This device is particularly useful in avoiding latch conditions and large in-rush currents that can affect system reliability. Available in a compact 6-pin SOT-23 package, it offers a tiny footprint of 2.9-mm x 1.6-mm, making it ideal for space-constrained applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT-23 (DBV)-6 |
| Body Size | 2.90 mm x 1.60 mm |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Quiescent Current (typ) | 25 µA |
| Number of Sequenced Outputs | 3 |
| Time Delay Options | 2, 10, 16, 30, 60, 120 ms |
| Operating Temperature Range | -40°C to 125°C |
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.
- Power-up and power-down control with adjustable timing using external capacitors or resistor dividers.
- Low quiescent current of 25 µA.
- Three open-drain output flags that can be pulled up to distinct voltage supplies.
- EPROM capability for fully adjustable delay and sequence settings.
- Glitch-free operation on the enable pin.
Applications
- Advanced driver assistance systems (ADAS).
- Automotive camera modules.
- Security cameras.
- Servers and networking elements.
- FPGA power supply sequencing.
- Microprocessor and microcontroller sequencing.
- Multiple supply sequencing in various electronic systems.
Q & A
- What is the primary function of the LM3880MFX-1AE/NOPB?
The primary function is to control the power-up and power-down sequencing of multiple independent voltage rails.
- What package type is the LM3880MFX-1AE/NOPB available in?
It is available in a 6-pin SOT-23 package.
- What is the supply voltage range for the LM3880MFX-1AE/NOPB?
The supply voltage range is from 2.7 V to 5.5 V.
- How many voltage rails can be sequenced by a single LM3880MFX-1AE/NOPB?
A single device can sequence three voltage rails.
- Can multiple LM3880MFX-1AE/NOPB devices be cascaded?
- What are the available time delay options for the LM3880MFX-1AE/NOPB?
The available time delay options are 2, 10, 16, 30, 60, and 120 ms.
- How is the timing sequence controlled in the LM3880MFX-1AE/NOPB?
The timing sequence is controlled by the assertion of the enable signal and can be adjusted using external capacitors or resistor dividers.
- What is the operating temperature range of the LM3880MFX-1AE/NOPB?
The operating temperature range is from -40°C to 125°C.
- Does the LM3880MFX-1AE/NOPB support adjustable delay and sequence settings?
- What are some common applications of the LM3880MFX-1AE/NOPB?
Common applications include ADAS, automotive camera modules, security cameras, servers, and FPGA power supply sequencing.
