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MAX6381LT44D4+

更新时间： 2024-11-10 13:37:51
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MAX6381LT44D4+ 数据手册

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19-1839; Rev 4; 4/07  
SC70/µDFN, Single/Dual Low-Voltage,  
Low-Power µP Reset Circuits  
General Description  
Features  
♦ Factory-Set Reset Threshold Voltages Ranging  
from +1.58V to +4.63V in Approximately 100mV  
Increments  
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 V  
falls below the factory-set reset  
CC  
♦ ±±.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  
♦ SeOen Reset Timeoꢁt Periods AOailable: 1ms,  
±0ms, 140ms, ±80ms, 560ms, 11±0ms,  
1±00ms (min)  
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.  
♦ 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  
♦ Reset ꢂꢁtpꢁt State Gꢁaranteed Valid  
Down to V  
= 1V  
CC  
MAX6384/MAX6385/MAX6386 also feature  
a
♦ Manꢁal Reset Inpꢁt (MAX6384/MAX6385/MAX6386)  
debounced manual reset input (with internal pullup  
resistor). The MAX6387/MAX6388/MAX6389 have an  
auxiliary input for monitoring a second voltage. The  
♦ Aꢁxiliary RESET IN  
(MAX6387/MAX6388/MAX6389)  
MAX6390 offers a manual reset input with a longer V  
♦ V  
Reset Timeoꢁt (11±0ms or 1±00ms)/Manꢁal  
CC  
Reset Timeoꢁt (140ms or 150ms) (MAX6390)  
CC  
reset timeout period (1120ms or 1200ms) and a shorter  
manual reset timeout (140ms or 150ms).  
♦ NegatiOe-Going V Transient Immꢁnity  
CC  
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.  
♦ Low Power Consꢁmption of 6µA at +3.6V  
and 3µA at +1.8V  
♦ Pin Compatible with  
MAX809/MAX810/MAX803/MAX63±6/MAX63±7/  
MAX63±8/MAX6346/MAX6347/MAX6348,  
and MAX6711/MAX671±/MAX6713  
Applications  
Computers  
Critical µP and µC  
Power Monitoring  
♦ Tiny 3-Pin/4-Pin SC70 and 6-Pin µDFN Packages  
Controllers  
Portable/Battery-  
Powered Equipment  
Ordering Information  
Intelligent Instruments  
PIN-  
PKG  
Dual Voltage Systems  
PART  
TEMP RANGE  
PACKAGE CꢂDE  
Pin Configurations  
MAX6381LT_ _D_+T -40°C to +125°C 6 µDFN-6  
MAX6381XR_ _D_+T -40°C to +125°C 3 SC70-3  
MAX638±LT_ _D_+T -40°C to +125°C 6 µDFN-6  
MAX6382XR_ _D_+T -40°C to +125°C 3 SC70-3  
L611-1  
X3-2  
TOP VIEW  
GND  
6
N.C.  
5
V
CC  
4
L611-1  
X3-2  
Note: Insert reset threshold suffix (see Reset Threshold table)  
after "XR", "XS", or "LT." 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  
MAX6381  
MAX6382  
MAX6383  
3
V
CC  
RESET  
(RESET)  
1
2
3
SC70  
RESET  
(RESET)  
N.C.  
N.C  
+Denotes a lead-free package.  
( ) IS FOR MAX6382  
µDFN  
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 Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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