APX809-23SRG-7 Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Not For New Designs
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 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:	SOT23R
Base Part Number:	APX809

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APX809-23SRG-7 application field and working principlePower management integration circuit (PMIC) – Supervisors are designed to protect assets from power disturbances such as overvoltage and undervoltage conditions. Supervisors monitor the input voltage and output power levels and take corrective action when necessary. The application fields of supervisors are mainly consumer, automotive, industrial and medical electronics. The APX809-23SRG-7 is a power management integrated circuit (PMIC) supervisor dedicated to the automotive market.The APX809-23SRG-7 integrates a power controller, supervisor, system reset and power-on reset (POR) on a single chip. The system reset function is used to reset the SoC upon detection of an overvoltage or undervoltage condition. The power-on reset (POR) provides an assertive reset that is triggered by a power-on voltage level change. The power controller circuitry ensures that the system output levels remain within the desired regulation range.The APX809-23SRG-7 contains monitoring and protection functions for both the input and output voltage levels. It has an adjustable voltage monitor (VMON) threshold for incoming voltage that triggers a reset upon detection of undervoltage or overvoltage conditions. It also includes an adjustable overload shutdown to protect the system from overcurrent conditions.In addition to its monitoring and protection functions, the APX809-23SRG-7 also contains several diagnostic functions. The reset event is detected and can be used to alert a service technician of a system fault. The fault type is also identified and can be used to pinpoint the cause of the fault. The power-on reset (POR) is also continuously monitored for proper operation and to allow for recovery from reset failure.The APX809-23SRG-7 is designed for use in the automotive market. It is shown to be especially suitable for automotive applications due to its ability to operate over a wide input voltage range from 6V to 18V and a wide temperature range from -40°C to +85°C. The device is also designed to meet the Automotive Electronics Council’s AEC Q100 up to 135°C grade-0 standards.The APX809-23SRG-7 is a low power device with an active current of only 10µA. It also includes a wide range of protection functions such as overvoltage and overcurrent protection, as well as Brown-out and Watchdog reset functions. The device also supports fast and slow mode selection, allowing designers to select the time period for signal recognition.The APX809-23SRG-7 is a highly integrated device that provides a convenient and cost-effective solution for automotive power supervision and monitoring applications. Its wide range of features make it a great choice for applications that require reliable reset and protection in the automotive market.In conclusion, the APX809-23SRG-7 is an advanced power management integrated circuit (PMIC) supervisor specifically designed for the automotive market. It provides a comprehensive set of features including input voltage monitoring and protection, output overload shutdown, reset control, power-on reset (POR), fast and slow modes, and diagnostic functions. The wide operating temperature range, low power consumption, and AEC Q100 grade-0 certification make the APX809-23SRG-7 an ideal choice for automotive power supervision applications.

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