Texas Instruments

LMT85DCKR

The LMT85DCKR is a precision micropower voltage supervisory device offered by Texas Instruments. It is designed to monitor the supply voltage in a wide range of applications and provide an output signal when the voltage falls below a programmable threshold. Here's a brief description, features, and applications of the LMT85DCKR:

Description:

The LMT85DCKR is a low-power, precision voltage supervisory device that provides a reliable and accurate way to monitor supply voltage levels. It features an internal reference, which can be trimmed to set a programmable threshold voltage. When the supply voltage falls below this threshold, the device's output signal changes state, indicating a potential power supply issue.

Features:

1. Precision Reference: The LMT85DCKR uses an internal precision reference to provide a stable and accurate threshold voltage.
2. Programmable Threshold: The threshold voltage can be trimmed using an external resistor network, allowing for customization to meet specific application requirements.
3. Low Power Consumption: The device is designed for low power operation, making it suitable for battery-powered and energy-sensitive applications.
4. Output Options: It provides an open-drain output that can be connected to a logic gate or a microcontroller input.
5. Wide Supply Voltage Range: The LMT85DCKR can operate over a wide supply voltage range, typically from 2V to 36V.
6. Temperature Stability: The device maintains its performance across a wide temperature range, typically from -40°C to +125°C.
7. Small Package: It is available in a small SOT-23 package, which is ideal for space-constrained applications.

Applications:

1. Power Supply Monitoring: In systems where reliable power supply is critical, the LMT85DCKR can monitor and alert when the supply voltage falls below a safe level.
2. Battery Backup Systems: It can be used to monitor the charge level of backup batteries and signal when the battery needs to be replaced or recharged.
3. Automotive Systems: The LMT85DCKR can be used to monitor the voltage levels in automotive systems, ensuring that critical components receive adequate power.
4. Industrial Control Systems: In industrial applications, it can be used to monitor the power supply to motors, sensors, and other critical components.
5. Telecommunications Equipment: The device can be used to monitor the power supply in telecommunications equipment, ensuring uninterrupted operation.
6. Medical Devices: In medical devices that require a stable power supply, the LMT85DCKR can provide an early warning of potential power issues.

The LMT85DCKR is a versatile and reliable voltage supervisory device that can be integrated into a wide range of applications where accurate and stable voltage monitoring is essential.