The TPS3306-33DGKR is a power-on reset (POR) precision voltage detector, which is categorized as a supervisor within the range of power management integrated circuit (PMIC) and belongs to Texas Instruments\' TPS3306 family. The POR supervisors are specifically designed to provide an electronic circuitry that detects if the system power supply rail has exceeded its rated limit by checking its voltage level. The TPS3306-33DGKR is suitable for applications that involve both low voltage and high voltage sensing. It can also be used in devices with 3.5V to 18V voltage rail range and rate at up to 20V.
Overview
The TPS3306-33DGKR from Texas Instruments is a precision voltage detector IC which comes with an integrated voltage-sensing POR detector that features an on/off state. The device also features a user-adjusted threshold voltage and offers an adjustable hysteresis feature, which provides protection against false triggering or voltage fluctuations. It comprises of a comparator, a matched resistor network and an SOT-23-5 surface mount packaging.
Features
- Integrated POR
- High-precision detection filters
- Low-power CMOS process
- Adjustable hysteresis
- Ultra-low power consumption
- Wide operating voltage range
- Robust 60mA P=W output drive
- Wide selection of reset sources
Applications
The TPS3306-33DGKR is well suited for a number of power supply applications that require a reliable and affordable POR supervisor. It can be used for digital signal processor (DSP) systems, flash memory controllers, microcontrollers, voltage-monitoring systems, power-on reset (POR) circuits and USB Host controllers. The TPS3306-33DGKR can also be used in various routers, switches and embedded systems.
Working Principle
The TPS3306-33DGKR is a precision voltage detector device that is specially designed to enable the monitoring of the system power supply rail. It works by comparing the voltage rail on the system with a preset voltage level and generating a reset signal when the voltage rail is higher than the preset level. The device can also be used to trigger an activity, such as alerting a system controller when the voltage rail on the system falls below the preset voltage level. This feature ensures that the device is useful for a wide range of applications. The device also works with integrated POR comparators, which are designed to detect system power-up and power-down conditions.
Conclusion
The TPS3306-33DGKR from Texas Instruments is an excellent power-on reset (POR) precision voltage detector device. It is suitable for a wide range of applications that involve both low voltage and high voltage sensing. It features a high-precision detection filter, low power consumption, wide operating voltage range, robust 60mA P=W output drive and wide selection of reset sources. The device offers an adjustable hysteresis feature, which provides protection against false triggering or voltage fluctuations. The TPS3306-33DGKR is an ideal choice for various router, switch, embedded systems and voltage-monitoring systems.