Allicdata Part #: | ADM6328-30ARTZ-R7TR-ND |
Manufacturer Part#: |
ADM6328-30ARTZ-R7 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Analog Devices Inc. |
Short Description: | IC MPU RESET CIRC 3.0V SOT23-3 |
More Detail: | Supervisor Open Drain or Open Collector 1 Channel ... |
DataSheet: | ADM6328-30ARTZ-R7 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Obsolete |
Type: | Simple Reset/Power-On Reset |
Number of Voltages Monitored: | 1 |
Output: | Open Drain or Open Collector |
Reset: | Active Low |
Reset Timeout: | 100 ms Minimum |
Voltage - Threshold: | 3V |
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: | ADM6328 |
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Introduction
The ADM6328-30ARTZ-R7 is a low voltage supervisory circuit specifically designed with microprocessors and digital signal processors (DSPs). This supvervisory circuit is used in a variety of application fields, and is optimized to prevent microprocessor or DSP malfunction due to low program or data memory supply voltages during power up, power down, and during various power glitches that can occur during normal operation. Additionally the ADM6328-30ARTZ-R7 is designed with state of the art CMOS technology to provide low current consumption when compared with other available microcontroller watchdog supervisory circuits.
Application Fields
The ADM6328-30ARTZ-R7 is primarily used in applications that require precise low voltage, power up and power down control of microprocessors or DSPs. These applications include systems that require different supply voltage levels for the microprocessor and DSP, as well as for peripherals. These systems typically require precision monitoring of the microprocessor, DSP, and/or peripheral power supplies.
The ADM6328-30ARTZ-R7 is also ideal due to its ability to reset the microprocessor or DSP in the event of an out of spec power supply voltage. This is important in critical systems, such as automotive applications. In these types of systems, the ADM6328-30ARTZ-R7 prevents erroneous or dangerous operation of the microprocessor or DSP due to out of spec condition.
Other applications of the ADM6328-30ARTZ-R7 include control and monitoring of system power supply voltages, such as standby, battery backup, and main power supplies. It is also used for monitoring general purpose I/O voltages, such as keyboard and display voltages, as well as for temperature monitoring. Additionally, it is ideal for applications that require precise monitoring of battery voltages.
Working Principle
The working principle of the ADM6328-30ARTZ-R7 is based on the comparison of two independent supply voltages. It is designed to detect a low supply voltage condition, usually below 3.0mV, and generate a reset pulse to reset the microcontroller or microprocessor, when such a condition occurs. The reset pulse duration is determined by the external capacitor connected to the reset timer pin. It is important to note that the ADM6328-30ARTZ-R7 has an internal hysteresis loop with a change of 0.5mV, ensuring that the reset pulse only occurs when the voltage conditions have cleared and stabilized.
In addition to its low voltage monitoring capabilities, the ADM6328-30ARTZ-R7 also provides watchdog and power up/power down sequencing features. The watchdog feature is used to ensure that the microprocessor or DSP executes the software code properly and doesn’t get stuck in an infinite loop. The watchdog feature is enabled by an external signal (WDI) and disabled by a software reset. Upon expiration of the watchdog timer, the ADM6328-30ARTZ-R7 will generate a reset signal.
The power up/power down sequencing feature allows time to turn off power supplies, or to signal other corresponding ICs, when the voltage drops below a predetermined level. This feature is enabled by an external control signal (PWRCTL#) to protect against data-loss due to sudden power outage.
Conclusion
The ADM6328-30ARTZ-R7 is a low voltage supervisory circuit designed for microprocessor and DSP applications that require precise low voltage detection and reset of the microcontroller. It is designed for use in applications requiring a variety of supply voltages for the microcontroller, DSP, and/or peripheral. Additionally, it contains watchdog and power up/power down sequencing features to ensure reliable operation. In this way, the ADM6328-30ARTZ-R7 ensures that the microprocessor or DSP works properly and is protected against out of spec condition.
The specific data is subject to PDF, and the above content is for reference
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