GND

GND

PP

INPUT

RESET

RESET

* 470k:

* REQUIRED FOR OPEN DRAIN OUTPUT

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

LM8365

SNVS233C – MARCH 2003 – REVISED DECEMBER 2015

LM8365 Micropower Undervoltage-Sensing Circuit With Programmable Output Delay

1

1 Features

1

•

Extremely-Low Quiescent Current: 0.62

= 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.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LM8365

SOT-23 (5)

2.90 mm × 1.60 mm

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Microprocessor Reset Circuit