ADM6823 Series

Low Voltage, Supervisory Circuit with Watchdog and Manual Reset in 5-Lead SOT-23

Catalog

Low Voltage, Supervisory Circuit with Watchdog and Manual Reset in 5-Lead SOT-23

Part	Output	Package / Case	Type	Voltage - Threshold	Mounting Type	Reset Timeout [Min]	Number of Voltages Monitored	Operating Temperature [Min]	Operating Temperature [Max]	Reset	Supplier Device Package
Analog Devices ADM6823VYRJZ-RL7	Push-Pull Totem Pole	SC-74A SOT-753	Simple Reset/Power-On Reset	1.58 V	Surface Mount	140 ms	1	-40 °C	125 °C	Active Low	SOT-23-5

Catalog

Low Voltage, Supervisory Circuit with Watchdog and Manual Reset in 5-Lead SOT-23

Key Features

• Precision low voltage monitoring

• 9 reset threshold options: 1.58 V to 4.63 V

• 140 ms (minimum) reset timeout

• Watchdog timer with 1.6 sec timeout

• Reset output stagePush-pull active-low

• Low power consumption: 7 μA

• Guaranteed reset output valid to VCC= 1 V

• Power supply glitch immunity

• Specified from −40°C to +125°C

• 5-lead SOT-23 package

Description

The ADM6823 is a low voltage, supervisory circuit that monitors power supply voltage levels and code execution integrity in micro-processor-based systems. As well as providing power-on reset signals, an on-chip watchdog timer can reset the microprocessor if it fails to strobe within a preset timeout period. A reset signal can also be asserted by means of an external push-button through a manual reset input.The part is available in nine reset threshold options, ranging from 1.58 V to 4.63 V (typical). The reset and watchdog timeout periods are fixed at 140 ms (minimum) and 1.6 sec (typical), respectively. Not all device models are released for sale as standard models. See the Ordering Guide for details.The ADM6823 is available in a 5-lead SOT-23 package and typically consumes only 7 μA, making it suitable for use in low power, portable applications.APPLICATIONSMicroprocessor systemsComputersControllersIntelligent instrumentsPortable equipment