RT9824C

3

DS9824C-00 August 2014

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Copyright 2014 Richtek Technology Corporation. All rights reserved.

is a registered trademark of Richtek Technology Corporation.

Operation

The RT9824 smart voltage detector monitors three voltage

levels at the same time to ensure the micro-processor is

operated within the recommended input voltage range. In

conventional reset IC application, to monitor one power

rail needs one reset IC. The RT9824 can monitor three

power rails simultaneously, by using just one reset IC.

The RT9824 also provides a Manual Reset (MR) function

for application easily. Glitch-rejection is implemented in

the RT9824 to prevent it from false operation and to

eliminate the additional de-bouncing circuitry.

POR Protection

To protect the chip from operating at insufficient supply

voltage, the POR is needed. When the input voltage of

VIN is lower than the POR falling threshold voltage, the

device will be lockout.