MAX6896 MAXIM [Maxim Integrated Products], MAX6896 Datasheet

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MAX6896

Manufacturer Part Number
MAX6896
Description
Ultra-Small, Adjustable Sequencing/Supervisory Circuits
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet

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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.
19-3673; Rev 6; 11/09
Typical Operating Circuit and Selector Guide appear at end
of data sheet.
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.
Automotive
Medical Equipment
Intelligent Instruments
Portable Equipment
________________________________________________________________ Maxim Integrated Products
General Description
Computers/Servers
Critical µP Monitoring
Set-Top Boxes
Telecom
Applications
Sequencing/Supervisory Circuits
Ultra-Small, Adjustable
♦ 1.8% Accurate Adjustable Threshold Over
♦ Operate from V
♦ Capacitor-Adjustable Delay
♦ Active-High/-Low Enable Input Options
♦ Active-High/-Low Output Options
♦ Open-Drain (28V Tolerant)/Push-Pull Output
♦ Low Supply Current (10µA, typ)
♦ Fully Specified from -40°C to +125°C
♦ Ultra-Small 6-Pin µDFN Package or 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.
MAX6895AALT+
MAX6895AAZT+
MAX6895PALT+T
MAX6895PAZT+
MAX6896AALT+
MAX6896AAZT+
MAX6896PALT+T
MAX6896PAZT+
Pin Configurations continued at end of data sheet.
Temperature
Options
Package
TOP VIEW
( ) FOR MAX6899 ONLY.
PART
CC
(ENABLE)
ENABLE
PIN-PACKAGE
6 µDFN-6
6 Thin SOT23-6
6 µDFN-6
6 Thin SOT23-6
6 µDFN-6
6 Thin SOT23-6
6 µDFN-6
6 Thin SOT23-6
of 1.5V to 5.5V
Ordering Information
V
1
CC
6
Pin Configurations
MAX6895
MAX6897
MAX6899
CDELAY
μDFN
GND
5
2
OUT
IN
3
4
Features
TOP MARK
+AADO
+AADK
+AADL
+AADP
+AW
+AX
+AY
+AZ
1

Related parts for MAX6896

MAX6896 Summary of contents

Page 1

... 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. ...

Page 2

Ultra-Small, Adjustable Sequencing/Supervisory Circuits ABSOLUTE MAXIMUM RATINGS , ENABLE, ENABLE, IN....................................-0. OUT, OUT (push-pull) ................................-0. OUT, OUT (open-drain)..........................................-0.3V to +30V CDELAY......................................................-0. Output Current (all pins) ...................................................±20mA Continuous Power Dissipation (T = +70°C) ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 1.5V to 5.5V -40°C to +125°C, unless otherwise specified. Typical values are otherwise noted.) (Note 2) PARAMETER SYMBOL OUT/OUT Output Low Voltage (Open-Drain or Push-Pull) Output High Voltage (Push-Pull) ...

Page 4

... CC 1 0.9 0.6 0.3 0 1000 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 I (mA) SINK ENABLE TURN-ON/OFF (MAX6896P) MAX6895 toc08 100 100ns/div IN THRESHOLD vs. TEMPERATURE 0.5010 0.5008 0.5006 0.5004 0.5002 = 3V 0.5000 0.4998 0.4996 0.4994 0.4992 0.4990 110 125 -40 -25 - TEMPERATURE (°C) OUTPUT HIGH VOLTAGE vs. SOURCE CURRENT 5 ...

Page 5

... PIN MAX6895/ MAX6896/ MAX6897 MAX6898 THIN THIN µDFN µDFN µDFN SOT23 SOT23 1 1 — — — — — — — — — — _______________________________________________________________________________________ Ultra-Small, Adjustable Sequencing/Supervisory Circuits MAX6899 NAME ...

Page 6

... Table 1. MAX6895/MAX6897 Output < < > OUT V > Table 2. MAX6896/MAX6898 Output IN MAX6895 MAX6899 V < GND V < > > Table 3. MAX6899 Output IN V < V ...

Page 7

Monitor Input (IN) Connect the center point of a resistive divider monitor external voltages (see R1 and R2 of the Typical Operating Circuit). IN has a rising threshold of V 0.5V and a falling threshold of 0.495V ...

Page 8

... Ultra-Small, Adjustable Sequencing/Supervisory Circuits UVLO IN ENABLE OUT t PROPA Figure 3. MAX6896A/MAX6898A Timing Diagram UVLO IN ENABLE OUT t PROPP Figure 4. MAX6895P/MAX6897P Timing Diagram 8 _______________________________________________________________________________________ t < t PROPA t DELAY OFF t > DELAY OFF t PROPA t PROPP ...

Page 9

... UVLO IN ENABLE OUT t PROPP Figure 5. MAX6896P/MAX6898P Timing Diagram UVLO IN ENABLE OUT t PROPA Figure 6. MAX6899A Timing Diagram _______________________________________________________________________________________ Ultra-Small, Adjustable Sequencing/Supervisory Circuits t DELAY DELAY > OFF PROPP t < t PROPA t PROPA t OFF 9 ...

Page 10

... OUT low (OUT high) within 150ns typ. Output (OUT or OUT ) The MAX6895/MAX6899 offer an active-high, push-pull output (OUT), and the MAX6896 offers an active-low push-pull output (OUT). The MAX6897 offers an active- high open-drain output (OUT), and the MAX6898 offers an active-low open-drain output (OUT). ...

Page 11

Pullup Resistor Values (MAX6897/MAX6898) The exact value of the pullup resistors for the open- drain outputs is not critical, but some consideration should be made to ensure the proper logic levels when the device is sinking current. For example, if ...

Page 12

Ultra-Small, Adjustable Sequencing/Supervisory Circuits 5V BUS DC-DC EN SYSTEM ENABLE ENABLE MAX6895 OUT GND C CDELAY Figure 10. Multiple-Output Sequencing 12 ______________________________________________________________________________________ 2.5V 3.3V DC-DC EN ENABLE V ENABLE MAX6895 MAX6895 OUT GND GND ...

Page 13

... PART ENABLE INPUT MAX6895AALT+T Active-High MAX6895AAZT+T Active-High MAX6895PALT+T Active-High MAX6895PAZT+T Active-High MAX6896AALT+T Active-Low MAX6896AAZT+T Active-Low MAX6896PALT+T Active-Low MAX6896PAZT+T Active-Low MAX6897AALT+T Active-High MAX6897AAZT+T Active-High MAX6897PALT+T Active-High MAX6897PAZT+T Active-High MAX6898AALT+T Active-Low MAX6898AAZT+T Active-Low MAX6898PALT+T Active-Low MAX6898PAZT+T Active-Low MAX6899AALT+T Active-Low MAX6899AAZT+T Active-Low MAX6899PALT+T Active-Low ...

Page 14

... Pin Configurations (continued) TOP VIEW OUT TOP VIEW + ENABLE 1 6 CDELAY GND MAX6896 MAX6898 OUT MAX6899 (OUT) THIN SOT23 For the latest package outline information www.maxim-ic.com/package. PACKAGE TYPE 6 µDFN 6 Thin SOT23 + ENABLE 1 6 CDELAY ...

Page 15

REVISION REVISION NUMBER DATE 10/07 — 5 Corrected Absolute Maximum Ratings and made style corrections to Electrical 11/09 6 Characteristics and TOC8 and TOC9 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a ...

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