ADM812RART-REEL7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-253-4, TO-253AA
Supplier Device Package:	SOT-143-4
Base Part Number:	ADM812

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Introduction

ADM812RART-REEL7 is an advanced system-level power management integrated circuits (PMIC) fabricated with low-power CMOS process. It combines Supervisors, Power Good Indicator, Precision Reference, and Power-On-Reset functions in one chip. It monitors system power supplies for overvoltage and undervoltage (UV) conditions, helps system safely power up and power down and triggers power-off when power fault is detected. With a wide input voltage range, the ADM812RART-REEL7 can be used in various applications from portable to enterprise systems.

Applications Of ADM812RART-REEL7

The ADM812RART-REEL7 is used for a variety of applications where power monitoring is needed. It is commonly used in systems such as servers, computer workstations, industrial system, and mobile devices. The ADM812RART-REEL7 also can be used in appliances and automotive equipment where its high-precision references, monitoring accuracy and low quiescent current are essential. Besides, its small package size makes it an ideal choice for space-constrained design.

Features Of ADM812RART-REEL7

The ADM812RART-REEL7 PMIC provides a wide range of features that enable reliable system power management. First of all, its wide input voltage rating of 4.5V to 24V ensures flexibility in a variety of applications. Secondly, its adjustable watchdog timer can be set with a period range of 10 msec to 10 sec to enable alternative power sequencing. Furthermore, it offers over-temperature protection with flexibility to support two active-low asserted outputs or one active-high asserted output.In addition, the ADM812RART-REEL7 can push-pull current drive up to 100mA, ensuring effortless switching while maintaining high accuracy. The PMIC also provides an adjustable reset timeout with a range from 100µs to 30.5s to assure safety power-on. Furthermore, its third input pin for an external power-on reset signal makes the application more robust.

Working Principle Of ADM812RART-REEL7

The ADM812RART-REEL7 works through power pins VDD1 and VDD2. When both inputs reach the rising trip-point, the power good flag is asserted, indicating that the link is established and the system is ready for normal operations. The ADM812RART-REEL7 also can detect a wide range of voltage with its adjustable threshold and will pull the outputs down to reset the system when voltage deviates from the setting point.Besides, the ADM812RART-REEL7 contains a watchdog timer that generates an active low output reset signal when the timer reaches its predetermined time limit. Also, it has an over-temperature protection (OTP) function to ramp down system clock and/or to generate rest signal when chip temperature over limits.

Conclusion

The ADM812RART-REEL7 PMIC is a highly integrated device with various system power management functions, combining Supervisors, Power Good Indicator, Precision Reference and Power-On-Reset functions in one chip. It can be used in various applications from portable to enterprise systems and its wide input voltage range makes it ideal for space-constrained designs. With its key features such as adjustable watchdog timer, adjustable reset timeout, over-temperature protection, and push-pull current drive, the ADM812RART-REEL7 can efficiently monitor and control the system power supplies to ensure reliable system operation.

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