Analog Devices Inc. ADM6339JARJZ-RL7

Description
The ADM6339 is a high-accuracy supervisory circuit that monitors up to four system supply voltages. It incorporates internally pretrimmed undervoltage threshold options for monitoring -5.0 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V supply voltages. Adjustable voltage threshold options are also available: 1.23 V, 0.62 V, and -0.5 V.
If a monitored power supply voltage decreases below the minimum voltage threshold (or rises above the maximum voltage threshold for the -0.5 V and -5.0 V input options), an active low output asserts, triggering a system reset. The output is open drain with a weak internal pull-up to the monitored IN supply of typically 10 μA. After all voltages exceed the selected threshold level, the reset signal remains low for the reset timeout period (200 ms typical).
The ADM6339 output remains valid as long as IN or IN exceeds 1 V. Unused monitored inputs should be connected to a supply voltage greater than their specified threshold voltages.

Features
Accurate monitoring of up to four power supply voltages
6 factory-set threshold options: -5.0 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V
Adjustable input threshold options: -0.5 V (±2.0% accuracy), 0.62 V (±0.8% accuracy), and 1.23 V
200 ms typical reset timeout
Open-drain RESET output (10 μA internal pull-up)
Reset output stage: active low, valid to IN = 1 V or IN = 1 V
Low power consumption (55 μA)
Glitch immunity
Specified from -40°C to 85°C
6-lead SOT-23 package

Applications
Telecommunications
Microprocessor systems
Data storage equipment
Servers/workstations