LTC2950CTS8-1

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LTC2950CTS8-1

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Supervisory Circuits LTC2950 - Push Button On/Off Controller

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概述

Description

The LTC2950CTS8-1 is a micropower, push-button on/off controller designed by Analog Devices, formerly Linear Technology. It is used to control the power state of electronic devices with minimal power consumption, making it ideal for battery-powered applications. The device provides a simple interface for turning on and off the power supply using a push-button switch.
Key features of the LTC2950CTS8-1 include a wide operating voltage range from 2.7V to 26.4V, low quiescent current, and a debounce timer to eliminate false triggering from noisy button inputs. It also features a configurable power-on time and an optional external reset delay capacitor. The device includes an interrupt output that signals a microcontroller during a power-off event, ensuring data integrity by allowing the system to complete crucial tasks before shutting down.
Packaged in a small TSOT-23 form factor, the LTC2950CTS8-1 is suitable for a range of applications, including portable instruments, handheld devices, and other low-power electronics that require efficient power control.

Equivalent

The LTC2950CTS8-1 is a micropower, pushbutton on/off controller. Equivalent products include the Maxim Integrated MAX16054, Analog Devices ADM8318, and the Texas Instruments TPS3420. These alternatives provide similar pushbutton control functionalities with low power consumption and are suitable for battery-operated applications. Always check specific datasheets to ensure compatibility for your particular application.

Features

The LTC2950CTS8-1 is a micropower voltage monitor and pushbutton controller designed to manage power-up and power-down sequences in electronic systems. Key features include:
1. Low Power Consumption: It operates with very low power, making it suitable for battery-powered applications.
2. Wide Operating Voltage Range: It supports a wide input voltage range from 1.5V to 36V, accommodating various power sources.
3. Pushbutton Control: The device features a debounced pushbutton input that can control the enabling and disabling of system power.
4. Adjustable Delay: It offers programmable turn-on and turn-off delays, configurable via external capacitors, to ensure controlled power sequencing.
5. Open-Drain Output: The device provides an open-drain enable output pin for easy interfacing with other components.
6. Minimal External Components: Designed for simplicity, it requires minimal external components, aiding in compact and cost-effective designs.
7. Small Package: Available in an 8-lead TSOT-23 package, it is suitable for space-constrained applications.
Overall, the LTC2950CTS8-1 is ideal for applications requiring efficient power management and control in compact and portable electronics.

Pinout

The LTC2950CTS8-1 is a micropower voltage supervisor with a pushbutton on/off controller. It typically comes in an 8-pin TSOT-23 package. Here is a concise description of its pin functions:
1. PB (Pin 1): Pushbutton Input. It detects the button press.
2. KILL (Pin 2): Input to disable the system. An external signal can be used to turn off the system.
3. GND (Pin 3): Ground. This is the reference point for the circuit.
4. ~ON~ (Pin 4): Open-drain output. It indicates that the system is on.
5. VCC (Pin 5): Supply Voltage. It powers the device, typically 2.7V to 26.4V.
6. /INT (Pin 6): Interrupt Output. It signals when the pushbutton is pressed.
7. ~RELEASE~ (Pin 7): Indicates the release of the pushbutton.
8. NC (Pin 8): No Connection. Not internally connected.
The LTC2950CTS8-1 is used in power management applications to control the on/off state of devices, providing a simple interface for user-controlled power cycling.

Manufacturer

The LTC2950CTS8-1 is manufactured by Analog Devices, Inc. Analog Devices is a multinational semiconductor company that specializes in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. The company's products are used in a wide array of applications, including consumer electronics, automotive, healthcare, industrial, and communications. Analog Devices is known for its innovations in signal processing and its contributions to the development of technology that bridges the physical and digital worlds.

Application

The LTC2950CTS8-1 is a power management IC commonly used for controlling power on/off sequences in various applications. It is particularly suitable for battery-powered devices due to its low power consumption and efficient management of power buttons. Typical application areas include portable electronics, handheld devices, consumer electronics, wearable technology, and embedded systems. Its ability to handle debounce and latch functions makes it integral in systems requiring reliable power control and user interface management. Additionally, it can be utilized in industrial applications where precise power sequencing is necessary.

Package

The LTC2950CTS8-1 is packaged in an 8-lead plastic TSOT-23 package, which is also referred to as "Thin Small Outline Transistor" package.

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