Overview
The LTC2954ITS8-2#TRPBF, produced by Analog Devices Inc., is a pushbutton on/off controller designed to manage system power through a pushbutton interface. This device is part of the LTC2954 series and is specifically packaged in an 8-lead TSOT-23 package. It operates over a wide input voltage range of 2.7V to 26.4V, making it versatile for various system power management applications. The LTC2954 provides an enable output that toggles system power, along with an interrupt output, and features robust pushbutton input handling with ESD protection up to ±10kV HBM.
Key Specifications
| Specification | Value |
|---|---|
| Package | 8-Lead TSOT-23 |
| Operating Temperature Range | –40°C to 85°C |
| Input Voltage Range | 2.7V to 26.4V |
| Pushbutton Input ESD Protection | ±10kV HBM |
| Turn-On Time Input | Adjustable with external capacitor (6.4 seconds/μF) |
| Kill Input Threshold | 0.6V |
| Interrupt Output Type | Open Drain |
| Minimum Operating Current | 6 μA |
Key Features
- Pushbutton On/Off Control: Manages system power via a pushbutton interface with an enable output that toggles system power.
- Robust Pushbutton Input: Withstands ±10kV ESD HBM and can be pulled up to 26.4V externally without consuming extra current.
- Adjustable Turn-On Time: The turn-on time can be adjusted using an external capacitor, with a default debounce time of 32ms if the pin is floated.
- Kill Input: Features a kill input with a 0.6V threshold that can be used as a voltage monitor input, blanked by a 512ms internal timer during system turn-on.
- Interrupt Output: Provides an open-drain interrupt output for system monitoring and control.
Applications
- System Power Management: Ideal for managing power in various electronic systems, including industrial, automotive, and consumer electronics.
- Embedded Systems: Suitable for use in embedded systems that require reliable and robust power management through a simple pushbutton interface.
- Industrial Control Systems: Can be used in industrial control systems where reliable power on/off control is critical.
- Portable Electronics: Applicable in portable electronics where power management is essential for battery life and system reliability.
Q & A
- What is the input voltage range of the LTC2954ITS8-2#TRPBF?
The input voltage range is 2.7V to 26.4V.
- What type of package does the LTC2954ITS8-2#TRPBF come in?
The device is packaged in an 8-lead TSOT-23 package.
- How does the LTC2954ITS8-2#TRPBF handle ESD protection on the pushbutton input?
The pushbutton input withstands ±10kV ESD HBM.
- Can the turn-on time be adjusted on the LTC2954ITS8-2#TRPBF?
Yes, the turn-on time can be adjusted using an external capacitor, with a default debounce time of 32ms if the pin is floated.
- What is the function of the kill input on the LTC2954ITS8-2#TRPBF?
The kill input has a 0.6V threshold and can be used as a voltage monitor input. It is blanked by a 512ms internal timer during system turn-on.
- What type of output does the interrupt pin provide?
The interrupt output is an open-drain type.
- What is the operating temperature range of the LTC2954ITS8-2#TRPBF?
The operating temperature range is –40°C to 85°C.
- How much current does the LTC2954ITS8-2#TRPBF consume during operation?
The device consumes a minimum operating current of 6 μA.
- What are some common applications for the LTC2954ITS8-2#TRPBF?
Common applications include system power management, embedded systems, industrial control systems, and portable electronics.
- Is the LTC2954ITS8-2#TRPBF RoHS compliant?
Yes, the LTC2954ITS8-2#TRPBF is RoHS compliant.
