General Description

The MAX6895–MAX6899 is a family of small, low-power,

voltage-monitoring circuits with sequencing capability.

These miniature devices offer tremendous flexibility with

an adjustable threshold capable of monitoring down to

0.5V and an external capacitor-adjustable time delay.

These devices are ideal for use in power-supply

sequencing, reset sequencing, and power-switching

applications. Multiple devices can be cascaded for

complex sequencing applications.

A high-impedance input with a 0.5V threshold allows an

external resistive divider to set the monitored threshold.

The output asserts (OUT = high or OUT = low) when

the input voltage rises above the 0.5V threshold and the

enable input is asserted (ENABLE = high or ENABLE =

low). When the voltage at the input falls below 0.5V or

when the enable input is deasserted (ENABLE = low or

ENABLE = high), the output deasserts (OUT = low or

OUT = high). All devices provide a capacitor-program-

mable delay time from when the input rises above 0.5V

to when the output is asserted. The MAX689_A versions

provide the same capacitor-adjustable delay from when

enable is asserted to when the output asserts. The

MAX689_P devices have a 1µs propagation delay from

when enable is asserted to when the output asserts.

The MAX6895A/P offers an active-high enable input

and an active-high push-pull output. The MAX6896A/P

offers an active-low enable input and an active-low

push-pull output. The MAX6897A/P offers an active-

high enable input and an active-high open-drain output.

Finally, the MAX6898A/P offers an active-low enable

input and an active-low open-drain output. The

MAX6899A/P offers an active-low enable with an active-

high push-pull output.

All devices operate from a 1.5V to 5.5V supply voltage

and are fully specified over the -40°C to +125°C operat-

ing temperature range. These devices are available in

ultra-small 6-pin µDFN (1.0mm x 1.5mm) and thin

SOT23 (1.60mm x 2.90mm) packages.

Applications

Automotive

Computers/Servers

Medical Equipment

Critical µP Monitoring

Intelligent Instruments

Set-Top Boxes

Portable Equipment

Telecom

Features

♦ 1.8% Accurate Adjustable Threshold Over

Temperature

♦ Capacitor-Adjustable Delay

♦ Active-High/-Low Enable Input Options

♦ Active-High/-Low Output Options

♦ Open-Drain (28V Tolerant)/Push-Pull Output

Options

♦ Low Supply Current (10µA, typ)

♦ Fully Specified from -40°C to +125°C

♦ Ultra-Small 6-Pin µDFN Package or Thin SOT23

Package

Ultra-Small, Adjustable

Sequencing/Supervisory Circuits

________________________________________________________________

Maxim Integrated Products

1

12

3

65

4

OUT

( ) FOR MAX6899 ONLY.

CDELAY

ENABLE

(ENABLE)

IN

GND

MAX6895

MAX6897

MAX6899

µDFN

TOP VIEW

Pin Configurations

Ordering Information

19-3673; Rev 8; 7/11

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Typical Operating Circuit and Selector Guide appear at end

of data sheet.

Pin Configurations continued at end of data sheet.

Ordering Information continued at end of data sheet.

Note: All devices are specified over the -40°C to +125°C oper-

ating temperature range.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

T = Tape and reel.

PART

PIN-PACKAGE

TOP MARK

MAX6895AALT+

6 µDFN

+AW

MAX6895AAZT+

6 Thin SOT23

+AADK

MAX6895PALT+T

6 µDFN

+AX

MAX6895PAZT+

6 Thin SOT23

+AADL

MAX6896AALT+

6 µDFN

+AY

MAX6896AAZT+

6 Thin SOT23

+AADO

MAX6896AAZT/V+T

6 Thin SOT23

+AATA

MAX6896PALT+T

6 µDFN

+AZ

MAX6896PAZT+

6 Thin SOT23

+AADP

MAX6896PAZT/V+T

6 Thin SOT23