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MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390
SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits


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Data Sheet
FULL DATA SHEET (PDF, 232kB)
Download this datasheet in PDF formatDownload   Send this datasheet to any email addressE-Mail


Description
The MAX6381–MAX6390 microprocessor (µP) supervisory circuits monitor power-supply voltages from +1.8V to +5.0V while consuming only 3µA of supply current at +1.8V. Whenever VCC falls below the factory-set reset thresholds, the reset output asserts and remains asserted for a minimum reset timeout period after VCC rises above the reset threshold. Reset thresholds are available from +1.58V to +4.63V, in approximately 100mV increments. Seven minimum reset timeout delays ranging from 1ms to 1200ms are available.

The MAX6381/MAX6384/MAX6387 have a push-pull active-low reset output. The MAX6382/MAX6385/MAX6388 have a push-pull active-high reset output, and the MAX6383/MAX6386/MAX6389/MAX6390 have an open-drain active-low reset output. The MAX6384/MAX6385/MAX6386 also feature a debounced manual reset input (with internal pullup resistor). The MAX6387/MAX6388/MAX6389 have an auxiliary input for monitoring a second voltage. The MAX6390 offers a manual reset input with a longer VCC reset timeout period (1120ms or 1200ms) and a shorter manual reset timeout (140ms or 150ms).

The MAX6381/MAX6382/MAX6383 are available in 3-pin SC70 and 6-pin µDFN packages and the MAX6384–MAX6390 are available in 4-pin SC70 and 6-pin µDFN packages.

Key Features   Applications/Uses
  • Factory-Set Reset Threshold Voltages Ranging from +1.58V to +4.63V in Approximately 100mV Increments
  • ±2.5% Reset Threshold Accuracy Over Temperature (-40°C to +125°C)
  • Seven Reset Timeout Periods Available: 1ms, 20ms, 140ms, 280ms, 560ms, 1120ms, 1200ms (min)
  • 3 Reset Output Options
    • Active-Low Push-Pull
    • Active-High Push-Pull
    • Active-Low Open-Drain
  • Reset Output State Guaranteed Valid Down to VCC = 1V
  • Manual Reset Input (MAX6384/MAX6385/MAX6386)
  • Auxiliary RESET IN (MAX6387/MAX6388/MAX6389)
  • VCC Reset Timeout (1120ms or 1200ms)/Manual Reset Timeout (140ms or 150ms) (MAX6390)
  • Negative-Going VCC Transient Immunity
  • Low Power Consumption of 6µA at +3.6V and 3µA at +1.8V
  • Pin Compatible with MAX809/MAX810/MAX803/MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/MAX6348, and MAX6711/MAX6712/MAX6713
  • Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages

 
  • Computers
  • Controllers
  • Critical µP and µC Power Monitoring
  • Dual Voltage Systems
  • Intelligent Instruments
  • Portable Battery-Powered Equipment

    Key Specifications:   Pushbutton Devices
    Part Number Number of Monitored Voltages Manual Reset Feature MR1 Setup Time Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Package Price**
    MAX6390  1 Single Soft/Hard Reset Output 1µs 1.2 to 1.79
    1.8 to 2.49
    2.5 to 3.29
    3.3 to 4.99
    Open Drain >1s 1.5 13 µDFN/6
    SC70/4
    $0.96 @ 1k
    See All Pushbutton Devices (17)

    Key Specifications:   Supervisors (1 Monitored Voltage)
    Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Price**
    MAX6381  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Push-Pull  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog  -  1.5 13 $0.96 @ 1k
    MAX6382  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
     -  Push-Pull 1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog  -  1.5 13 $0.96 @ 1k
    MAX6383  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Open Drain  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog  -  1.5 13 $0.96 @ 1k
    MAX6384  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Push-Pull  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Manual Reset 1.5 13 $0.96 @ 1k
    MAX6385  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
     -  Push-Pull 1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Manual Reset 1.5 13 $0.96 @ 1k
    MAX6386  1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Open Drain  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Manual Reset 1.5 13 $0.96 @ 1k
    See All Supervisors (1 Monitored Voltage) (270)

    Key Specifications:   Supervisors (2 Monitored Voltages)
    Part Number Interface Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Price**
    MAX6387  Factory Fixed
    R/C Adjustable
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Push-Pull  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Adjustable Reset Input
    Manual Reset
    1.5 13 $0.96 @ 1k
    MAX6388  Factory Fixed
    R/C Adjustable
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
     -  Push-Pull 1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Adjustable Reset Input 1.5 13 $0.96 @ 1k
    MAX6389  Factory Fixed
    R/C Adjustable
    1.2 to 1.8
    1.8 to 2.5
    2.5 to 3.3
    3.3 to 5.5
    Open Drain  -  1ms to 15ms
    15ms to 85ms
    85ms to 300ms
    300ms to 1s
    >1s
    No Watchdog Adjustable Reset Input 1.5 13 $0.96 @ 1k
    See All Supervisors (2 Monitored Voltages) (84)
    Notes:
    **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    Application Notes
  • Application Note 720: Microprocessor Supervisors Offer Big Insurance in Small Packages - MAX6381
  • Application Note 1136: Switching Between Battery and External Power Sources - MAX6381
  • Application Note 1195: Maximize Battery Life and Minimize Replacements - MAX6381
  • Application Note 1837: One-Shot Timing Improves Microprocessor Reset Circuit - MAX6384, MAX6386
  • Application Note 1858: Tiny IC Debounces Pushbutton Switch - MAX6384, MAX6385, MAX6386
  • Application Note 3227: Power-On Reset and Related Supervisory Functions - MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390

    Evaluation Kits
    none

    Design Guides
  • Microprocessor Supervisory (PDF)

    Reliability Reports
  • Reliability Report: MAX6384.pdf
  • Show FIT data for:
  • Request Reliability Report for:

    Software/Models
  • MAX6381 IBIS Model

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Filter:

    Devices: 1-100 of 10300

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20  --->

    MAX6381 Free
    Sample
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    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    Temp RoHS/Lead-Free?
    Materials Analysis
    MAX6381XR35D4+  


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    Filter:

    Devices: 1-100 of 10300

    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20  --->


    More Information
  • Topmark Coding: MAX6381 MAX6382 MAX6383 MAX6384 MAX6385 MAX6386 MAX6387 MAX6388 MAX6389 MAX6390
  • New Product Press Release 2000-11-22 

    Related Products
    MAX6332, MAX6333, MAX6334 3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
    MAX6335, MAX6336, MAX6337 4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
    MAX6326, MAX6327, MAX6328, MAX6346, MAX6347, MAX6348 3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
    MAX6316, MAX6316M, MAX6317, MAX6318, MAX6319, MAX6320, MAX6321, MAX6322 5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
    MAX6305, MAX6306, MAX6307, MAX6308, MAX6309, MAX6310, MAX6311, MAX6312, MAX6313 5-Pin, Multiple-Input, Programmable Reset ICs

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    Document Ref.: 19-1839; Rev 4; 2007-05-10
    This page last modified: 2007-07-02


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