MAX6895_11 Datasheet, PDF (1/15 Pages) Maxim Integrated Products – Ultra-Small, Adjustable Sequencing/Supervisory Circuits

19-3673; Rev 8; 7/11
Ultra-Small, Adjustable
Sequencing/Supervisory Circuits
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.
Automotive
Medical Equipment
Intelligent Instruments
Portable Equipment
Applications
Computers/Servers
Critical µP Monitoring
Set-Top Boxes
Telecom
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
Features
♦ 1.8% Accurate Adjustable Threshold Over
Temperature
♦ Operate from V_CC of 1.5V to 5.5V
♦ 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
Ordering Information
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
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.
Pin Configurations
TOP VIEW
VCC CDELAY OUT
6
5
4
MAX6895
MAX6897
MAX6899
1
2
3
ENABLE GND
IN
(ENABLE)
µDFN
( ) FOR MAX6899 ONLY.
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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.