
Allicdata Part #: | DS1708EPA+-ND |
Manufacturer Part#: |
DS1708EPA+ |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Maxim Integrated |
Short Description: | IC MICROMONITOR 5V 10% 8-DIP |
More Detail: | Supervisor Push-Pull, Push-Pull 1 Channel 8-PDIP |
DataSheet: | ![]() |
Quantity: | 1000 |
1 +: | 0.00000 |
Specifications
Series: | MicroMonitor™ |
Packaging: | Tube |
Part Status: | Active |
Type: | Simple Reset/Power-On Reset |
Number of Voltages Monitored: | 1 |
Output: | Push-Pull, Push-Pull |
Reset: | Active High/Active Low |
Reset Timeout: | 130 ms Minimum |
Voltage - Threshold: | 4.4V |
Operating Temperature: | -40°C ~ 85°C (TA) |
Mounting Type: | Through Hole |
Package / Case: | 8-DIP (0.300", 7.62mm) |
Supplier Device Package: | 8-PDIP |
Base Part Number: | DS1708 |
Description
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PMIC - Supervisors:
The DS1708EPA+ is a supervisor that is used to provide power-on reset (POR) and power fail (PFD) detection. It monitors the power supply and generates a reset on a voltage drop below the monitor voltage. This product can be used in a wide range of applications, including in real-time clocks (RTC), digital cellular phones, and ultra-portable laptops. It is ideal for providing robust protection to the system against power dropouts and reset malfunctions. The DS1708EPA+ is very versatile as it contains a wide range of single/multi-channel power rail monitoring, configurable reset thresholds, and clock sets with a low quiescent current.
Application Field of DS1708EPA+:
The DS1708EPA+ is well suited for use in real-time clock applications that require a robust reset response. It can also be used in digital cellular phones, personal digital assistants (PDAs), and other ultra-portable electronics applications, such as desktops and servers, to provide a reset solution. The DS1708EPA+ is designed to be connected to a system power supply and monitors the supply voltage at regular intervals and generates a reset pulse if the voltage drops below a predefined threshold. The reset pulse is sent to the system processor, where it cycles the system, safely restoring it back to its last known-working state.
Furthermore, the DS1708EPA+ is highly configurable and can be adjusted for various LDO and switching power-supply applications. It has a wide range of adjustable reset threshold levels and a wide port of voltage options, including 1.1V, 1.2V, 1.5V and 3.3V. The device has a quiescent current of less than 1microAmp and is capable of providing a positive reset pulse width of at least 100ms. Additionally, it is capable of powering two separate power rails in parallel with a combined reset threshold.
Moreover, designed to support WSON-8 package and it is lead-free and RoHS compliant. The DS1708EPA+ is a reliable and versatile solution for any power-on reset system.
Working Principle of DS1708EPA+:
The DS1708EPA+ detects and acknowledges a power-on reset (POR) condition when it detects that the supply voltage has dropped below a predetermined level. When it acknowledges the POR condition, it sends a reset pulse to the system processor, allowing it to perform a safe reset. The device also continuously monitors the supply voltage, and once the voltage reaches the correct levels, it will generate a pulse again. The reset signal length depends on the capacitance of the system.
Apart from the POR detection, the DS1708EPA+ also includes an adapter for monitoring a second voltage rail and generating a reset pulse if the voltage rates drop below a pre-defined threshold. This feature enables the resets system to easily monitor and prevent power failure in dual-voltage systems. The pre-defined thresholds of the monitored voltage rails can be easily adjusted using the external control pins.
The device also includes a watchdog timer, which can be used to detect reset malfunctions or application errors and reset the system before any system crashes. The watchdog timer is managed by the host application, which can be programmed with an appropriate timeout setting. If any application errors are detected, the watchdog will reset the system and bring it back to a known working state.
In conclusion, the DS1708EPA+ is a reliable and versatile solution for any system that requires robust protection against power dropouts and reset malfunctions. The device is highly configurable and provides an adjustable reset threshold level, quiescent current of less than 1µA and a watchdog timer for resetting the system if errors are detected.
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