MAX6307UK31D3-T

Manufacturer Part NumberMAX6307UK31D3-T
DescriptionSupervisory Circuits Integrated Circuits (ICs)
ManufacturerMaxim Integrated Products
MAX6307UK31D3-T datasheets

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Specifications of MAX6307UK31D3-T

Number Of Voltages Monitored2Monitored Voltage3.3 V, 5 V
Undervoltage Threshold3.034 VOvervoltage Threshold3.126 V
Output TypeActive Low, Open DrainManual ResetNot Resettable
WatchdogNo WatchdogBattery Backup SwitchingNo Backup
Power-up Reset Delay (typ)200 msSupply Voltage (max)5.5 V
Supply Voltage (min)1 VSupply Current (typ)8 uA
Maximum Power Dissipation571 mWMaximum Operating Temperature+ 70 C
Mounting StyleSMD/SMTPackage / CaseSOT-23-5L
Minimum Operating Temperature0 CPower Fail DetectionNo
Lead Free Status / Rohs StatusNo  
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19-1145; Rev 5; 4/08
General Description
The MAX6305–MAX6313 CMOS microprocessor (µP)
supervisory circuits are designed to monitor more than
one power supply. Ideal for monitoring both 5V and
3.3V in personal computer systems, these devices
assert a system reset if any of the monitored supplies
falls outside the programmed threshold. Low supply
current (15µA) and a small package suit them for
portable applications. The MAX6305–MAX6313 are
specifically designed to ignore fast transients on
any monitored supply.
These devices are available in a SOT23-5 package,
have factory-programmed reset thresholds from 2.5V to
5.0V (in 100mV increments), and feature four power-on
reset timeout periods. Ten standard versions are avail-
able. Contact the factory for availability of non standard
versions.
Portable Computers
Computers
Controllers
Intelligent Instruments
Portable/Battery-Powered Equipment
Multivoltage Systems: 3V/5V, 5V/12V, 5V/24V
Embedded Control Systems
Pin Configurations and Typical Operating Circuit appear at
end of data sheet.
Ordering Information continued at end of data sheet.
Standard Versions Table appears at end of data sheet.
_______________________________________________________________Selector Table
OPEN-DRAIN
PUSH/PULL
PART
RESET
RESET
OUTPUT
OUTPUT

MAX6305
—

MAX6306
—

MAX6307
—

MAX6308
—

MAX6309
—

MAX6310
—
MAX6311
—
—
MAX6312
—
—
MAX6313
—
—
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Maxim Integrated Products
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.
5-Pin, Multiple-Input,
Programmable Reset ICs
o Small 5-Pin SOT23 Package
o Precision Factory-Set V
Available in 0.1V Increments from 2.5V to 5V
o Immune to Short V
o Guaranteed RESET Valid to V
o Guaranteed Over Temperature
o 8µA Supply Current
o Factory-Set Reset Timeout Delay from
1ms (min) to 1120ms (min)
o No External Components
o Manual Reset Input
o Under/Overvoltage Supply Monitoring
PART †
Applications
MAX6305UK00D_-T
MAX6305EUK00D_-T
† The MAX6306/MAX6307/MAX6309/MAX6310/MAX6312/
MAX6313 are available with factory-set V
2.5V to 5V, in 0.1V increments. Insert the desired nominal reset
threshold (from Table 1) into the blanks following the letters UK.
All parts also offer factory-programmed reset timeout periods.
Insert the number corresponding to the desired nominal timeout
period index following the “D” in the part number (D1 = 1ms min,
D2 = 20ms min, D3 = 140ms min, and D4 = 1120ms min). There
are 10 standard versions with a required order increment of 2,500
pieces. Sample stock is generally held on the standard versions
only (see Standard Versions table). Required order increment is
10,000 pieces for non-standard versions. Contact factory for
availability of non-standard versions. All devices available in tape-
and-reel only.
Devices are available in both leaded and lead-free packaging.
Specify lead-free by replacing “-T” with “+T” when ordering.
FACTORY-
PUSH/PULL
SET RESET
RESET
THRESHOLD
OUTPUT
ON V
CC
—
—

—

—
—
—

—

—

—




Features
Reset Thresholds;
CC
Transients
CC
= 1V
CC
Ordering Information
PIN -
TEMP RANGE
PA C K A G E
-0°C to +70°C
5 SOT23
-40°C to +85°C
5 SOT23
reset thresholds from
CC
ADDITIONAL
NEGATIVE/
MANUAL-
UNDERVOLTAGE
OVERVOLTAGE
RESET INPUTS
RESET INPUT
2
—
1
—

1
2
—
1
—

1
2
—
1
—

1
RESET
INPUT
—

—
—

—
—

—
1

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MAX6307UK31D3-T Summary of contents

  • Page 1

    ... MAX6312 — — MAX6313 — — Maxim Integrated Products 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. 5-Pin, Multiple-Input, Programmable Reset ICs o Small 5-Pin SOT23 Package o Precision Factory-Set V Available in 0.1V Increments from 2. ...

  • Page 2

    Multiple-Input, Programmable Reset ICs ABSOLUTE MAXIMUM RATINGS V ...........................................................................-0.3V to +6V CC All Other Pins..............................................-0. Input/Output Current, All Pins .............................................20mA Rate of Rise, V ............................................................100V/µs CC Continuous Power Dissipation (T = +70°C) A SOT23-5 (derate 7.1mW/°C above ...

  • Page 3

    ELECTRICAL CHARACTERISTICS (continued +2.5V to +5.5V for the MAX6305/MAX6308/MAX6311 MAX6310/MAX6312/MAX6313 -40°C to +85°C; unless otherwise noted. Typical values are PARAMETER SYMBOL MANUAL-RESET INPUT (MAX6306/MAX6309/MAX6312 Input V ...

  • Page 4

    Multiple-Input, Programmable Reset ICs __________________________________________Typical Operating Characteristics (V = +5V +25°C, unless otherwise noted SUPPLY CURRENT vs. TEMPERATURE 9 5.5V 9 4.5V CC 8.0 7.5 7.0 6 ...

  • Page 5

    ... MAX6312/MAX6313 also monitor V CC trimmed resistor divider to the reset comparator. A µP’s reset input starts the µ known state. These µP supervisory circuits assert reset to prevent code- execution errors during power-up, power-down, or brownout conditions. RESET (MAX6305–MAX6310) and RESET (MAX6311/ MAX6312/MAX6313) are guaranteed to be asserted at a valid logic level for V Characteristics ) ...

  • Page 6

    Multiple-Input, Programmable Reset ICs * +1.23V RST IN1 † +1.23V RST IN2 +1.23V MAX6305–MAX6313 †† GND * MAX6306/MAX6307/MAX6309/MAX6310/MAX6312/MAX6313 ONLY ** MAX6305–MAX6310 ONLY *** MAX6311/MAX6312/MAX6313 ONLY † MAX6307/MAX6310/MAX6313 ONLY †† MAX6305/MAX6308/MAX6311 ONLY ††† MAX6306/MAX6309/MAX6312 ONLY Figure 1. ...

  • Page 7

    MAX6305– MAX6313 RST IN_ R2 C* GND *FOR ADDITIONAL NOISE IMMUNITY Figure 2. Increasing Noise Immunity The ±25nA max input leakage current allows resistors on the order of megohms. Choose the pull-up resistor in the ...

  • Page 8

    Multiple-Input, Programmable Reset ICs currents, holding RESET low (Figure 4). The pull-down resistor’s value is not critical; 100kΩ is large enough not to load RESET and small enough to pull RESET to ground. For applications where RESET must be ...

  • Page 9

    Ordering Information (continued) PART † TEMP RANGE MAX6306UK_ _D_-T -0°C to +70°C MAX6306EUK_ _D_-T -40°C to +85°C MAX6307UK_ _D_-T -0°C to +70°C MAX6307EUK_ _D_-T -40°C to +85°C MAX6308UK00D_-T -0°C to +70°C MAX6308EUK00D_-T -40°C to +85°C MAX6309UK_ _D_-T -0°C to +70°C ...

  • Page 10

    Multiple-Input, Programmable Reset ICs TOP VIEW 1 5 (RESET) RESET MAX6305 GND 2 MAX6308 MAX6311 RST IN1 3 4 SOT23 ARE FOR MAX6311 ...

  • Page 11

    ... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ © 2008 Maxim Integrated Products ...

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