1 Features
1• Extremely-Low Quiescent Current: 0.62 μA at VIN
= 2.6 V
• High Accuracy Threshold Voltage (±2.5%)
• Open-Drain Output
• Programmable Output Delay by External
Capacitor (130 ms Typical With 0.1 μF)
• Input Voltage Range: 1 V to 6 V
• Pin-for-Pin Compatible With MC33465

2 Applications
• Portable Electronics
• Low-Battery Detection
• Microprocessor Reset Controllers
• Power Fail Indicators
• Battery Backup Detection

3 Description
The LM8365 device is a micropower undervoltage
sensing circuit that is ideal for use in battery-powered
microprocessor based systems, where extended
battery life is a key requirement.
Threshold voltages of 2.7 V and 4.5 V are available
with an active-low, open-drain output. These devices
feature a very-low quiescent current of 0.65 μA
typical. The LM8365 features a highly accurate
voltage reference, a comparator with precise
thresholds and built-in hysteresis to prevent erratic
reset operation, a time delayed output which can be
programmed by the system designer, and specified
Reset operation down to 1 V with extremely-low
standby current.