Overview
The LTC2954IDDB-2#TRMPBF from Analog Devices Inc. is a pushbutton on/off controller designed to manage system power through a pushbutton interface. This component is part of the power management and supervisory circuits category. It features an enable output that toggles system power and an interrupt output to signal the microprocessor (μP) for power management tasks. The LTC2954 is suitable for various applications requiring controlled power-on and power-off sequences.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 8-Lead (3mm × 2mm) Plastic DFN |
| Operating Temperature Range | –40°C to 85°C |
| Operating Supply Current | 6 µA |
| Supply Voltage Range | 2.7V to 26.4V |
| Enable Output Type | Open Drain |
| Interrupt Output Type | Active Low |
| Minimum Interrupt Pulse Width | 32ms |
| Lead Finish | Lead Free |
| Packaging | Tape & Reel (TR) |
Key Features
- Pushbutton on/off control with debounced inputs
- Enable output to control system power
- Interrupt output to signal the microprocessor for power management tasks
- Low operating current of 6 µA
- Wide supply voltage range from 2.7V to 26.4V
- Internal timer for power-on sequence management
- Cable drop compensation and other power management features
Applications
The LTC2954IDDB-2#TRMPBF is versatile and can be used in various applications, including:
- Portable electronics requiring controlled power-on and power-off sequences
- Industrial control systems needing reliable power management
- Automotive systems where robust power control is essential
- Medical devices requiring precise power management
- Any system needing pushbutton-controlled power with supervisory functions
Q & A
- What is the primary function of the LTC2954IDDB-2#TRMPBF?
The primary function is to manage system power via a pushbutton interface. - What is the operating temperature range of the LTC2954IDDB-2#TRMPBF?
The operating temperature range is –40°C to 85°C. - What is the typical operating supply current of the LTC2954IDDB-2#TRMPBF?
The typical operating supply current is 6 µA. - What type of output does the enable pin provide?
The enable output is an open-drain type. - How long does the interrupt output stay low after a valid pushbutton event?
The interrupt output stays low for a minimum of 32ms. - What is the purpose of the internal timer in the LTC2954IDDB-2#TRMPBF?
The internal timer manages the power-on sequence and ensures the system has enough time to perform power-on tasks. - Can the LTC2954IDDB-2#TRMPBF be used in automotive systems?
Yes, it can be used in automotive systems due to its robust power control features. - What is the packaging type for the LTC2954IDDB-2#TRMPBF?
The packaging type is Tape & Reel (TR). - Is the LTC2954IDDB-2#TRMPBF lead-free?
Yes, the LTC2954IDDB-2#TRMPBF is lead-free. - What is the supply voltage range for the LTC2954IDDB-2#TRMPBF?
The supply voltage range is from 2.7V to 26.4V.
