TPS3805H33DCKR

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PMIC - Supervisors

The Texas Instruments TPS3805H33DCKR is a family of high-voltage supervisor devices designed for a variety of general-purpose, battery-powered and automotive applications. These supervisors have an automatic reset/brown-out feature that can be configured to reset the system when an under-voltage or over-voltage condition occurs. With a wide operating voltage range and fast response time, this supervisor family is suitable for various system reset scenarios including power sequencing applications. It also provides logic signals to indicate microprocessor reset, power supply monitoring, and other power sequences.

The TPS3805H33DCKR family is available in a range of package options including SOIC, TS, and VFQFN. The unit is factory-trimmed to ensure consistent performance, and it works with an operating voltage range from 2V to 5.5V. It also has a wide options available in terms of reset delay times and reset-trip point settings as well as pulsed power on/off delay options. All devices in this family are also designed to meet AEC-Q100 automotive standards, so they can be used in a wide range of automotive and power management applications.

Applications

The TPS3805H33DCKR is designed to meet the needs of a wide variety of general-purpose, battery-powered and automotive applications. Some of the popular applications include embedded systems, power supplies, automotive vehicles and various microprocessor reset functions. This device is especially suitable for applications requiring wide operating voltage range, fast response time and robust design. The TPS3805H33DCKR is also AEC-Q100 compliant, making it suitable for advanced automotive designs.

Working principle

The TPS3805H33DCKR is a 7 voltage detection and reset supervisor device which operates with a wide operating voltage range from 2V to 5.5V. It monitors an external voltage and upon detection of an under-voltage or over-voltage condition, it will issue a system reset. This reset will be issued whether the voltage is rising or falling. The reset timeout period is determined by the accuracy of the trim capacitor value.

In addition to resetting the system, the device also outputs a logic signal indicating reset. This signal can be used for various diagnostics and control purposes, such as monitoring power supply sequencing, microprocessor reset, and so on. The device also provides various power on/off delay settings, so that the user can customize the sequence according to the specific application.

In conclusion, the TPS3805H33DCKR is an advanced and robust supervisory device which offers a wide range of features and functions to fulfill the needs of power management and automotive applications. It offers a wide operating voltage range, fast response time, a range of reset delay times and reset-trip point settings and various pulsed power on/off delay options. Therefore, it is suitable for a variety of applications including embedded systems, power supplies, automotive vehicles and various microprocessor reset functions.

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