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MAX6381XR31D5+T

更新时间： 2024-11-19 13:10:47
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19-1839; Rev 1; 04/01  
SC70, Single/Dual Low-Voltage,  
Low-Power µP Reset Circuits  
General Description  
Features  
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  
o Factory-Set Reset Threshold Voltages Ranging  
from +1.58V to +4.63V in Approximately 100mV  
Increments  
+1.8V. Whenever V  
falls below the factory-set reset  
CC  
o ±±.5ꢀ Reset Threshold Accꢁracy ꢂOer  
thresholds, the reset output asserts and remains assert-  
ed for a minimum reset timeout period after V rises  
Temperatꢁre (-40°C to +1±5°C)  
CC  
above the reset threshold. Reset thresholds are available  
from +1.58V to +4.63V, in approximately 100mV incre-  
ments. Seven minimum reset timeout delays ranging  
from 1ms to 1200ms are available.  
o SeOen Reset Timeoꢁt Periods AOailable: 1ms,  
±0ms, 140ms, ±80ms, 560ms, 11±0ms,  
1±00ms (min)  
o 3 Reset ꢂꢁtpꢁt ꢂptions  
ActiOe-Low Pꢁsh-Pꢁll  
ActiOe-High Pꢁsh-Pꢁll  
ActiOe-Low ꢂpen-Drain  
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  
o Reset ꢂꢁtpꢁt State Gꢁaranteed Valid  
MAX6384/MAX6385/MAX6386 also feature  
a
Down to V  
= 1V  
CC  
debounced manual reset input (with internal pullup  
resistor). The MAX6387/MAX6388/MAX6389 have an  
auxiliary input for monitoring a second voltage. The  
o Manꢁal Reset Inpꢁt (MAX6384/MAX6385/MAX6386)  
o Aꢁxiliary RESET IN  
MAX6390 offers a manual reset input with a longer V  
CC  
(MAX6387/MAX6388/MAX6389)  
reset timeout period (1120ms or 1200ms) and a shorter  
manual reset timeout (140ms or 150ms).  
o V  
Reset Timeoꢁt (11±0ms or 1±00ms)/Manꢁal  
CC  
The MAX6381/MAX6382/MAX6383 are available in 3-pin  
SC70 packages and the MAX6384–MAX6390 are avail-  
able in 4-pin SC70 packages.  
Reset Timeoꢁt (140ms or 150ms) (MAX6390)  
o NegatiOe-Going V Transient Immꢁnity  
CC  
o Low Power Consꢁmption of 6µA at +3.6V  
________________________Applications  
and 3µA at +1.8V  
Computers  
o Pin Compatible with  
Controllers  
MAX809/MAX810/MAX803/MAX63±6/MAX63±7/  
MAX63±8/MAX6346/MAX6347/MAX6348,  
and MAX6711/MAX671±/MAX6713  
Intelligent Instruments  
Critical µP and µC Power Monitoring  
Portable/Battery-Powered Equipment  
Dual Voltage Systems  
o Tiny 3-Pin SC70 and 4-Pin SC70 Packages  
Ordering Information  
PART  
TEMP. RANGE  
-40°C to +125°C  
-40°C to +125°C  
-40°C to +125°C  
PIN-PACKAGE  
MAX6381XR_ _D_-T  
MAX6382XR_ _D_-T  
MAX6383XR_ _D_-T  
3 SC70-3  
Pin Configurations  
3 SC70-3  
3 SC70-3  
TOP VIEW  
Note: Insert reset threshold suffix (see Reset Threshold table)  
after "XR" or "XS". Insert reset timeout delay (see Reset Timeout  
Delay table) after "D" to complete the part number. Sample  
stock is generally held on standard versions only (see  
Standard Versions table). Standard versions have an order  
increment requirement of 2500 pieces. Nonstandard versions  
have an order increment requirement of 10,000 pieces.  
Contact factory for availability of nonstandard versions.  
GND  
1
2
MAX6381  
MAX6382  
MAX6383  
3
V
CC  
RESET  
(RESET)  
SC70  
*MAX6390 is available with D4 or D7 timing only.  
( ) IS FOR MAX6382  
Ordering Information continued at end of data sheet.  
Typical Operating Circuit appears at end of data sheet.  
Selector Guide appears at end of data sheet.  
Pin Configurations continued at end of data sheet.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...11

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