MAX6389：SC70/µDFN, Single/Dual Low-Voltage, Low-Power µP Reset Circuits

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
  • 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
MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390: Typical Operating Circuit
MAX6381, MAX6382, MAX6383, MAX6384, MAX6385, MAX6386, MAX6387, MAX6388, MAX6389, MAX6390: Typical Operating Circuit
Applications/Uses
  • Computers
  • Controllers
  • Critical µP and µC Power Monitoring
  • Dual Voltage Systems
  • Intelligent Instruments
  • Portable Battery-Powered Equipment
DataSheet
titleDownload file
MAX6381-MAX6390 Data SheetMAX6381-MAX6390.pdf
Parametrics
Part NumberMonitored VoltagesManual Reset FeatureMR1 Setup TimeReset Thresh.
(V)		Reset OuttRESETReset Thresh. Accur.
(%)		ICC
(µA)		Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX63901Single Soft/Hard Reset Output1µs1.2 to 1.79
1.8 to 2.49
2.5 to 3.29
3.3 to 4.99		Active Low
Open Drain		>1s1.513µDFN/6
SC-70/4		$1.15 @1k

Part NumberReset Thresh.
(V)		Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)		ICC
(µA)		Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX63811.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5		Active Low
Push-Pull		1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
>1s		No Watchdog-1.513µDFN/6
SC-70/3		$1.13 @1k
MAX6382Active High
Push-Pull		-µDFN/6
SC-70/3		$1.15 @1k
MAX6383Active Low
Open Drain		-µDFN/6
SC-70/3		$0.95 @1k
MAX6384Active Low
Push-Pull		Manual ResetµDFN/6
SC-70/4		$1.15 @1k
MAX6385Active High
Push-Pull		Manual ResetµDFN/6
SC-70/4		$1.15 @1k
MAX6386Active Low
Open Drain		Manual ResetµDFN/6
SC-70/4		$1.13 @1k

Part NumberInterfaceReset Thresh.
(V)		Reset OuttRESETWatchdog FeatureSupervisor FeaturesReset Thresh. Accur.
(%)		ICC
(µA)		Package/PinsBudgetary
Price
min@ +25°CmaxSee Notes
MAX6387Factory Fixed
R/C Adjustable		1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5		Active Low
Push-Pull		1ms to 15ms
15ms to 85ms
85ms to 300ms
300ms to 1s
>1s		No WatchdogAdjustable Reset Input
Manual Reset		1.513µDFN/6
SC-70/4		$1.13 @1k
MAX6388Active High
Push-Pull		Adjustable Reset InputµDFN/6
SC-70/4		$2.01 @1k
MAX6389Active Low
Open Drain		Adjustable Reset InputµDFN/6
SC-70/4		$1.15 @1k
Quality and Environmental Data
Related Products
  • MAX6333：3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
  • MAX6332：3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
  • MAX6334：3-Pin, Ultra-Low-Voltage, Low-Power µP Reset Circuits
  • MAX6335：4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
  • MAX6336：4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
  • MAX6337：4-Pin, Ultra Low-Voltage, Low-Power µP Reset Circuits with Manual Reset
  • MAX6318：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6319：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6317：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6320：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6316：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6321：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6322：5-Pin µP Supervisory Circuits with Watchdog and Manual Reset
  • MAX6346：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6327：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6328：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6326：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6347：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6348：3-Pin, Ultra-Low-Power SC70/SOT µP Reset Circuits
  • MAX6310：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6308：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6305：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6311：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6306：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6309：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6312：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6313：5-Pin, Multiple-Input, Programmable Reset ICs
  • MAX6307：5-Pin, Multiple-Input, Programmable Reset ICs
Ordering Information
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6389LT16D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT16D2+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT16D3+TActiveµDFN,;6 pin;1.6 mm²-40°C to +125°CLead Free
MAX6389LT16D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT16D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT16D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT16D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D2+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D3+TActiveµDFN,;6 pin;1.6 mm²-40°C to +125°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6389LT17D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT17D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D2+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D3+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT18D6+TActiveuDFN;-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6389LT18D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D2+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D3+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT19D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT20D1+TActiveµDFN,;6 pin;1.6 mm²-40°C to +85°CLead Free
MAX6389LT20D2+TActiveµDFN,;6 pin;1.6 mm²-40°C to +85°CLead Free
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6389LT20D3+TActiveµDFN,;6 pin;1.6 mm²-40°C to +85°CLead Free
MAX6389LT20D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT20D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT20D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT20D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D2+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D3+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D5+TActiveuDFN;-40°C to +85°CSee data sheet
Part NumberStatusRecommended ReplacementPackageTempRoHS
MAX6389LT21D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT21D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT22D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT22D2+TActiveµDFN,;6 pin;1.6 mm²-40°C to +85°CLead Free
MAX6389LT22D3+TActiveµDFN,;6 pin;1.6 mm²-40°C to +125°CLead Free
MAX6389LT22D4+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT22D5+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT22D6+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT22D7+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6389LT23D1+TActiveuDFN;-40°C to +85°CSee data sheet
MAX6381-MAX6390.pdf MAX6390
MAX6381-MAX6390.pdf MAX6390
MAX6389.pdf MAX6389
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