Overview
The LTC2951ITS8-1#TRMPBF, produced by Analog Devices Inc., is a micropower, wide input voltage range pushbutton ON/OFF controller. This device is designed to manage the power-on and power-off sequences of electronic systems efficiently. It features a push-button input that controls the toggling of the system's power state and includes additional functionality such as adjustable turn-on and turn-off delays, and interrupt generation for system monitoring.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Voltage Range | 2.7V to 26.4V | |
| Supply Current | Typically 6µA | At TA = 25°C, VIN = 3.3V |
| Package Type | TSOT-23-8 | |
| Operating Temperature Range | -45°C to 100°C | |
| KILL Turn-On Blanking Time | 100ms to 163ms | |
| KILL Turn-Off Delay | 9ms to 13.5ms (with CKILLT = 1500pF) | |
| Turn-Off Debounce Time | Default 32ms, adjustable with external capacitor |
Key Features
- Micropower operation with low supply current (typically 6µA)
- Wide input voltage range from 2.7V to 26.4V
- Push-button input for controlling power state
- Adjustable turn-on and turn-off delays using external capacitors
- Interrupt generation for system monitoring
- Internal debounce timers for reliable operation
- Compact TSOT-23-8 package
Applications
The LTC2951ITS8-1#TRMPBF is suitable for various applications requiring efficient power management, such as portable electronics, battery-powered devices, and systems that need reliable push-button controlled power-on and power-off sequences. It is particularly useful in scenarios where low power consumption and compact design are critical.
Q & A
- What is the input voltage range of the LTC2951ITS8-1#TRMPBF?
The input voltage range is from 2.7V to 26.4V. - What is the typical supply current of the device?
The typical supply current is 6µA at TA = 25°C and VIN = 3.3V. - What type of package does the LTC2951ITS8-1#TRMPBF come in?
The device comes in a TSOT-23-8 package. - What is the operating temperature range of the device?
The operating temperature range is from -45°C to 100°C. - How does the KILL pin function in the LTC2951ITS8-1#TRMPBF?
The KILL pin is used to control the turn-on and turn-off sequences, with adjustable delays using external capacitors. - Does the LTC2951ITS8-1#TRMPBF generate interrupts?
Yes, the device generates interrupts for system monitoring. - What is the purpose of the internal debounce timers?
The internal debounce timers ensure reliable operation by filtering out spurious signals from the push-button input. - Can the turn-off debounce time be adjusted?
Yes, the turn-off debounce time can be adjusted using an external capacitor. - What are some typical applications for the LTC2951ITS8-1#TRMPBF?
Typical applications include portable electronics, battery-powered devices, and systems requiring reliable push-button controlled power management. - How does the device handle power-on sequences?
The device includes an internal timer that ensures sufficient time for the system to power on and perform initial tasks before monitoring the push-button and KILL inputs.
