DS1818-10

Series:	EconoReset
Packaging:	Bulk
Part Status:	Obsolete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:	2.88V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3
Base Part Number:	DS1818

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DS1818-10 PMIC - Supervisors

The DS1818-10 is a precision micropower supervisor designed to monitor a single supply voltage rail. It monitors the input voltage to detect out of spec conditions, and can generate a system reset or interrupt subsequent safe mode, depending on how it is configured. This device’s precision and micropower consumption make it well suited for a variety of applications including the monitoring of power conversion and protection circuitry in batteries, power supplies, embedded systems, and backplanes.

Application Fields

The DS1818-10 is primarily used to protect systems from anomalous voltage input, particularly if the voltage rails are cascaded. In the case of cascading supplies, the device ensures that the lower voltage rail within the system is correctly stabilized at the desired output level. This type of protection is particularly valuable when the downstream chips are sensitive to voltage drops or increases beyond their intended operating range. The device also has application in industrial and automotive systems. In these implementations, the device’s precision and power consumption make it a good fit for monitoring power integrity and accuracy. As automotive systems become increasingly reliant on electronics, the need for accurate power monitoring has become essential. The device’s precision enables it to detect unexpected shifts from the ideal operating conditions and can help avoid undesired outcomes.

Working principle

The DS1818-10 consists of three blocks: a sense amplifier, a comparator, and an output driver. The device accepts a single positive or negative voltage input, converts it to an accurately monitored voltage level, and compares this level to two electronically programmable thresholds. If the monitored voltage level falls outside an acceptable range, the output driver is enabled and an active event (such as a reset or an interrupt) is generated.The sense amplifier of the device is designed to accurately monitor the input voltage. This is accomplished by attenuating the voltage reference voltage by a programmable amount and comparing it with the input voltage. If the voltage reference is lower, the device will produce a high output, while a lower input will produce a low output. The design of the sense amplifier improves the stability of the DS1818-10, allowing for accurate voltage monitoring in a range of input voltages.The monitored voltage level is then compared against two user-programmable thresholds. Once the monitored voltage falls outside an acceptable range, the output driver is enabled, producing an active event. Depending on the configuration, the device can generate a system reset, or an interrupt to a safe mode. The active event is then routed to an external system for handling.In summary, the DS1818-10 is a precision micropower supervisor designed to monitor a single supply voltage rail. It accurately monitors the input voltage, and can generate a system reset or interrupt subsequent safe mode depending on how it is configured. This device is well suited for a variety of applications including the monitoring of power conversion and protection circuitry, industrial and automotive systems and more

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description