TL7770-5IDWRG4

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multi-Voltage Supervisor
Number of Voltages Monitored:	2
Output:	Complementary
Reset:	Active High/Active Low
Reset Timeout:	270 ns Typical Propagation Delay
Voltage - Threshold:	5V, Adj
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	TL7770-5

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PMIC - Supervisors: TL7770-5IDWRG4 Application Field and Working Principle

PMIC - Supervisors refers to the power management integrated circuit. PMICs integrate multiple voltage regulators, usually with other features such as power sequencing, battery charge management, and power-on reset control. In the 1960s and 1970s, PMICs started out as separate ICs like linear regulators, dc-to-dc converters, and voltage references. Today, PMICs are integrated circuits used in everything from cell phones and embedded systems to automobiles, electric vehicles, and industrial power systems.The TL7770-5IDWRG4 is a PMIC - Supervisor. It is a low-quiescent current voltage supervisor with an open-drain output. This device provides a system reset when the monitored power supply voltages reach a predefined threshold. This supervisor provides an active-low reset signal when its input voltage falls below a specified threshold. It also provides an active-high/low selection of reset asserts/release delays. The TL7770-5IDWRG4 has five applications: microprocessor systems, system management, power supply monitoring, memory backup, and power sequencing. In microprocessor systems, the TL7770-5IDWRG4 is used to monitor the power supply voltages of the main processor and provide a reset to ensure safe operation. In system management, it helps provide accurate thresholds and reset sequence to control power-up/power-down sequencing. In power supply monitoring, the TL7770-5IDWRG4 is used to detect supply voltages and provide a reset if the voltages fall below a predetermined threshold. It can also be used to detect faults in the power supply and provide a shutdown or reset. In memory backup, the TL7770-5IDWRG4 keeps track of the power supply voltages of memory components, providing a reset to avoid data loss. Finally, in power sequencing, it helps the system to maintain the proper sequence of power-up/power-down operations.The TL7770-5IDWRG4 works according to the following principle: when the power supply voltage goes below a predetermined threshold, it sends out an active-low reset signal. This signal is then sent to the microcontroller, which sets a RESET flag in its register. This flag then triggers the system to reset itself and return to a safe state.The TL7770-5IDWRG4 is highly useful for microprocessor systems, which require reliable reset signals to ensure proper functioning and to avoid damaging the circuits. The reset feature of TL7770-5IDWRG4 is extremely reliable and robust, due to its high precision and accuracy. This makes it an ideal choice for embedded systems and other critical applications where reset signals must not fail.In conclusion, the TL7770-5IDWRG4 is a PMIC - Supervisor device that provides a low-quiescent current voltage supervision with an open-drain output. It has five applications, namely microprocessor systems, system management, power supply monitoring, memory backup, and power sequencing. It works by sending an active-low reset signal when the power supply voltage goes below a specified threshold. The TL7770-5IDWRG4 has a high accuracy and robustness, making it ideal for use in embedded systems and other critical applications.

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