TLV809I50DBZT

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:	4.55V
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:	TLV809I50

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TLV809I50DBZT Application Field and Working PrincipleTLV809I50DBZT belongs to a type of PMIC (Power Management Integrated Circuit) termed Supervisors. It functions to monitor voltage levels and reset the system in the case of a fault, making it a critical component in many vendors. This article will cover the various application fields, as well as its working principle. TLV809I50DBZT is typically used in applications involving computers, microcontrollers, field-programmable gate arrays, and programmable logic controllers. It is also used to monitor voltage levels in computers, smart cards, and various other electronic systems. In addition, it is used to enable a safe shutdown of an electronic system in the event of a critical fault. The TLV809I50DBZT is a programmable supervisor circuit with 9mA, 0.5V to 9V input voltage range and 5V tolerant inputs. It has three operating modes, namely inverted and adjustable trip point , active-low, and active-high. It has an adjustable reset delay time which is configurable from 2 to 29 seconds. It also has an integrated delay circuit which allows delayed reset output. Additionally, the TLV809I50DBZT has an open-drain output, which can be used to drive an external reset switch or a reset led. The TLV809I50DBZT also contains a comparator, which monitors the input voltage level. When the voltage level drops below the programmed threshold level, the comparator activates the reset circuit, which generates a reset signal. The reset signal is then sent to the microcontroller or other external devices, informing them to initiate a safe system shutdown. The reset signal can also be used to open an output transistor, which allows the system to be reset manually. In terms of its working principle, the TLV809I50DBZT is based on a hysteresis circuit. This type of circuit allows the input voltage to be compared with a pre-programmed threshold level. When the actual voltage drops below the threshold level, the reset output is activated. Furthermore, once the reset output is activated, the threshold level is increased, ensuring that it is not reactivated until the voltage is allowed to rise above the new threshold value. This way, if the voltage level remains below the threshold for too long, an excessive number of resets are not triggered. All in all, the TLV809I50DBZT is an important component for many vendors, as it is used to both monitor voltage levels and reset the system in the case of a fault. Its wide range of applications and its ability to provide delayed reset output as well as manual system reset makes it a versatile component. Its working principle is based on a hysteresis circuit, which ensures that resets are only triggered when necessary.ConclusionIn conclusion, TLV809I50DBZT is a PMIC (Power Management Integrated Circuit) that belongs to a type of Supervisors and is widely used by many vendors. Its adjustable reset delay, open-drain output, and integrated delay circuit makes it a versatile component that is suitable for different applications. It also uses a hysteresis circuit to detect when the voltage level drops below a certain threshold and trigger a reset signal accordingly.

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