Overview
The LM3880QMF-1AD/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 applications where controlled sequencing is crucial to avoid latch conditions and large in-rush currents. It is qualified for automotive applications and meets the AEC-Q100 Grade 1 standards, ensuring reliability over a junction temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.7 to 5.5 | V |
| Quiescent Current | 25 | µA |
| Junction Temperature Range | -40 to 125 | °C |
| Package Type | SOT-23 (6 pins) | |
| Package Size | 2.9 mm x 1.6 mm | |
| Thermal Resistance (Junction-to-Ambient) | 187.6 | °C/W |
| Enable Pin Voltage Range | -0.3 V to VCC + 0.3 V | V |
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
- Low quiescent current: 25 µA
- Tiny 2.9-mm x 1.6-mm footprint in SOT-23 package
- EPROM capability allows every delay and sequence to be fully adjustable
- Open-drain output flags can be pulled up to distinct voltage supplies separate from the sequencer VDD
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
Q & A
- What is the primary function of the LM3880QMF-1AD/NOPB?
The primary function is to control the power-up and power-down sequencing of multiple independent voltage rails. - What is the input voltage range for this device?
The input voltage range is 2.7 V to 5.5 V. - What is the quiescent current of the LM3880QMF-1AD/NOPB?
The quiescent current is 25 µA. - What package type and size does this device come in?
The device comes in a SOT-23 package with a size of 2.9 mm x 1.6 mm. - Is the LM3880QMF-1AD/NOPB qualified for automotive applications?
Yes, it is AEC-Q100 Grade 1 qualified. - How many voltage rails can be sequenced with a single device?
A single device can sequence three voltage rails. - Can the LM3880QMF-1AD/NOPB be cascaded to sequence more voltage rails?
Yes, up to three devices can be cascaded to sequence as many as nine voltage rails. - What is the junction temperature range for this device?
The junction temperature range is -40°C to 125°C. - Can the delay and sequence times be adjusted?
Yes, the delay and sequence times can be fully adjusted using EPROM capability. - What types of applications is the LM3880QMF-1AD/NOPB typically used in?
It is used in applications such as ADAS, automotive camera modules, security cameras, servers, networking elements, FPGA power supply sequencing, and microprocessor/microcontroller sequencing.
