General Description

The MAX6375–MAX6380 are ultra-low-power circuits

used for monitoring battery, power-supply, and regulat-

ed system voltages. Each detector contains a precision

bandgap reference, comparator, and internally trimmed

resistors that set specified trip threshold voltages.

These devices provide excellent circuit reliability and

low cost by eliminating external components and

adjustments when monitoring nominal system voltages

from 2.5V to 5V.

These circuits perform a single function: they assert an

below a preset threshold. The devices are differentiated

by their output logic configurations and preset thresh-

old voltages. The MAX6375/MAX6378 (push-pull) and

MAX6377/MAX6380 (open-drain) have an active-low

MAX6376/MAX6379 have an active-high push-pull out-

parts are guaranteed to be in the correct output logic

MAX6377 have voltage thresholds between 2.20V and

3.08V in approximately 100mV increments. The

MAX6378/MAX6379/MAX6380 have voltage thresholds

between 3.30V and 4.63V in approximately 100mV

increments.

Ultra-low supply current of 500nA (MAX6375/MAX6376/

MAX6377) makes these parts ideal for use in portable

equipment. All six devices are available in a space-sav-

ing SC70 package or in a tiny SOT23 package.

Applications

Precision Battery Monitoring

Load Switching/Power Sequencing

Power-Supply Monitoring in Digital/Analog Systems

Portable/Battery-Powered Equipment

Features

o Ultra-Low 500nA Supply Current

(MAX6375/MAX6376/MAX6377)

o Thresholds Available from 2.20V to 4.63V in

Approximately 100mV Increments

o ±2.5% Threshold Accuracy Over Temperature

o Low Cost

o Available in Three Versions: Push-Pull OUT,

Push-Pull OUT, and Open-Drain OUT

o Power-Supply Transient Immunity

o No External Components

o Available in Either a 3-Pin SC70

or 3-Pin SOT23 Package

3-Pin, Ultra-Low-Power SC70/SOT23

Voltage Detectors

________________________________________________________________ Maxim Integrated Products

1

( ) ARE FOR MAX6376/MAX6379 ONLY.

TOP VIEW

OUT(OUT)

1

3

GND

SC70-3

2

GND

1

3

SOT23-3

2

MAX6375XR–

MAX6380XR

MAX6375UR–

MAX6380UR

OUT(OUT)

Pin Configuration

19-1721; Rev 2; 2/03

set thresholds from 2.20V to 3.08V, in approximately 0.1V incre-

ments. The MAX6378/MAX6379/MAX6380 are available in

factory-preset thresholds from 3.30V to 4.63V, in approximately

0.1V increments. Choose the desired threshold suffix from

Table 1 and insert it in the blank spaces following R. There are

21 standard versions, with a required order increment of 2500

pieces. Sample stock is generally held on the standard versions

only (see the Selector Guide). The required order increment is

10,000 pieces for nonstandard versions (Table 2). Contact facto-

ry for availability. All devices available in tape-and-reel only.

Ordering Information

Selector Guide appears at end of data sheet.

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

PART*

TEMP RANGE

PIN-PACKAGE

MAX6375UR _ _ -T

-40°C to +85°C

3 SOT23-3

MAX6375XR _ _ -T

-40°C to +85°C

3 SC70-3

MAX6376UR _ _ -T

-40°C to +85°C

3 SOT23-3

MAX6376XR _ _ -T

-40°C to +85°C

3 SC70-3

Ordering information continued at end of data sheet