TPS3809J25DBVR Integrated Circuits (ICs) |
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Allicdata Part #: | 296-10915-2-ND |
Manufacturer Part#: |
TPS3809J25DBVR |
Price: | $ 0.22 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC 2.25V SUPPLY MONITOR SOT-23-3 |
More Detail: | Supervisor Push-Pull, Totem Pole 1 Channel SOT-23-... |
DataSheet: | TPS3809J25DBVR Datasheet/PDF |
Quantity: | 6000 |
3000 +: | $ 0.19275 |
6000 +: | $ 0.17946 |
15000 +: | $ 0.17281 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Type: | Simple Reset/Power-On Reset |
Number of Voltages Monitored: | 1 |
Output: | Push-Pull, Totem Pole |
Reset: | Active Low |
Reset Timeout: | 120 ms Minimum |
Voltage - Threshold: | 2.25V |
Operating Temperature: | -40°C ~ 85°C (TA) |
Mounting Type: | Surface Mount |
Package / Case: | TO-236-3, SC-59, SOT-23-3 |
Supplier Device Package: | SOT-23-3 |
Base Part Number: | TPS3809J25 |
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The TPS3809J25DBVR is a high-performance voltage supervisor designed for use as a reset generator to ensure correct processor/microcontroller initialization. It contains an analog comparator and an on-chip delay circuit. By monitoring the connection of a controlled resistor, the TPS3809J25DBVR can accurately determine the output voltage status of a power supply, and generate a reset signal to the microcontroller or processor system. Although the chip does not contain the active elements required for power supply, it is still an invaluable tool for controlling the power supply.
The TPS3809J25DBVR is classified as a PMIC-Supervisor because it monitors an external voltage source in order to reset a microcontroller or processor system when power is out of specification. The chip is capable of monitoring output voltages as low as 1.3 V and as high as 3.5 V, thus making it an ideal choice for any microcontroller or processor system that relies on external voltage regulators.
The working principle of the TPS3809J25DBVR is simple yet effective. It contains an analog comparator circuit, which is connected to a controlled resistance. When the voltage at the comparator reaches a predefined level, the rest signal is activated. The controlled resistance determines the threshold at which the reset signal is generated. The data sheet for the chip also includes a separate circuit diagram for the delay timer. This timer allows the user to specify the duration of the reset signal, thus providing exact control over the initialization process of the microcontroller or processor system.
Apart from providing overvoltage, undervoltage, or brownout protection, the TPS3809J25DBVR has several other applications. It can be used to monitor the power supply output voltage and to detect transient voltages in circuits. This makes it ideal for protection against voltage surges or other unexpected high voltages. In addition, the chip also functions as a power-on reset (POR) generator, which is necessary to ensure correct system initialization during start up. Furthermore, due to its low reset voltage threshold, the TPS3809J25DBVR can be used in applications where the microcontroller or processor requires very low startup voltages, such as with battery-independent systems.
The TPS3809J25DBVR is an extremely versatile PMIC-Supervisor that is suited for a wide variety of applications, from basic overvoltage protection to more complex power-on reset generation. Thanks to its on-chip delay circuit and wide operating voltage range, it can be used with a wide variety of microcontroller and processor systems. From protecting against power surges and brownouts to ensuring robust and reliable system initialization, the TPS3809J25DBVR is an essential component for any processor system that relies on external voltage regulation.
The specific data is subject to PDF, and the above content is for reference
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