Analog Devices / Maxim Integrated NanoPower Supervisory & Watchdog Timer

Analog Devices NanoPower Supervisory & Watchdog Timer is used to monitor a single system supply voltage and the integrity of code execution by a microprocessor or microcontroller. The device asserts the reset output whenever the V_CC supply voltage is greater than the minimum operating voltage but less than the reset threshold. After the supply voltage rises above the reset threshold, the reset output remains asserted for the reset timeout period. It then deasserts. Reset voltage thresholds are available from 1.50V to 5.0V in approximately 100mV increments.

Features

400nA (typ.) supply current
1.2V to 5.5V operating supply range
Monitors supply voltage and provides a system reset signal
1.5V to 5.0V input threshold range in 100mV increments
Watchdog function detects faulty code execution

Open-drain reset and watchdog outputs
Watchdog timer enable input
6-Bump WLP package
6-Pin SOT23 package
-40°C to +125°C operating temperature range

Applications

Portable/battery-powered equipment
Tablets/e-Readers/mobile devices

Glucose monitors/patient monitor
Metering

Analog Devices / Maxim Integrated NanoPower Supervisory & Watchdog Timer

Features

Applications

Typical Application Circuit

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