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PDF MAX6358 Data sheet ( Hoja de datos )
| Número de pieza | MAX6358 | |
| Descripción | Dual/Triple-Voltage uP Supervisory Circuits | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX6358 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
General Description
The MAX6351–MAX6360 microprocessor (μP) supervi-
sors with multiple reset voltages significantly improve
system reliability and accuracy compared to separate ICs
or discrete components. If any input supply voltage drops
below its associated preset threshold, all reset outputs
are asserted. In addition, the outputs are valid as long as
either input supply voltage remains greater than +1.0V.
All devices in this series have an active-low debounced
manual-reset input. In addition, the MAX6358/MAX6359/
MAX6360 offer a watchdog timer input with a 46.4s startup
timeout period and a 2.9s timeout period. The MAX6355/
MAX6356/MAX6357 offer an additional voltage-monitor
input to monitor a third voltage.
The MAX6351 features two active-low, push-pull reset
outputs, one is referenced to VCC1 and the other is refer-
enced to VCC2. The MAX6353/MAX6356/MAX6359 offer
an active-low, push-pull reset output referenced to VCC1.
The MAX6354/MAX6357/MAX6360 offer an active-low,
push-pull reset output referenced to VCC2.
All these devices are offered with a wide variety of voltage
threshold levels, as shown in the Voltage-Threshold Levels table.
They are available in 5- and 6-pin SOT23 packages and oper-
ate over the extended (-40°C to +85°C) temperature range.
Voltage Threshold Levels
PART NO.
SUFFIX
(_ _)
VCC1 NOMINAL
VOLTAGE
THRESHOLD (V)
VCC2 NOMINAL
VOLTAGE
THRESHOLD (V)
LT 4.63 3.08
LS 4.63 2.93
LR 4.63 2.63
MT 4.38 3.08
MS 4.38
2.93
MR 4.38
2.63
TZ 3.08 2.32
TY 3.08 2.19
TW 3.08
1.67
TV 3.08 1.58
SZ 2.93 2.32
SY 2.93 2.19
SW 2.93
1.67
SV 2.93 1.58
UW 2.78
1.67
UV 2.78 1.58
RW 2.63
1.67
RV 2.63 1.58
Note: Standard versions are shown in bold. Sample stock is
generally held on the standard versions only. Contact factory for
availability.
Features
●● Precision Monitoring of Multiple +1.8V, +2.5V, +3.0V,
+3.3V, and +5V Power-Supply Voltages
●● Precision Factory-Set Power-Supply
Reset Thresholds
●● 20μA Supply Current
●● 100ms min Power-On-Reset Pulse Width
●● Debounced TTL/CMOS-Compatible
Manual-Reset Input
●● Watchdog Timer
• 46.4s Startup Timeout
• 2.9s Normal Timeout
●● Fully Guaranteed Over Temperature
●● Guaranteed RESET Valid to VCC1 = 1V or VCC2 = 1V
●● Power-Supply Transient Immunity
●● No External Components for Dual-Voltage Systems
●● Small 5- and 6-Pin SOT23 Packages
●● Low Cost
Applications
●● Computers
●● Intelligent Instruments
●● Controllers
●● Multivoltage Systems
●● Portable/Battery-
Powered Equipment
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX6351_ _UT-T -40°C to +85°C 6 SOT23
MAX6352_ _UK-T -40°C to +85°C 5 SOT23
MAX6353_ _UK-T -40°C to +85°C 5 SOT23
MAX6354_ _UK-T -40°C to +85°C 5 SOT23
MAX6355_ _UT-T -40°C to +85°C 6 SOT23
MAX6356_ _UT-T -40°C to +85°C 6 SOT23
MAX6357_ _UT-T -40°C to +85°C 6 SOT23
MAX6358_ _UT-T -40°C to +85°C 6 SOT23
MAX6359_ _UT-T -40°C to +85°C 6 SOT23
MAX6360_ _UT-T -40°C to +85°C 6 SOT23
*The _ _ are placeholders for the threshold voltage levels of
the devices. Substitute the part number suffix in the Voltage
Threshold Levels table for the desired voltage level. All devices
are available in tape-and-reel only. There is a 2500 piece
minimum order increment for the SOT package.
Devices are available in both leaded and lead(Pb)-free packag-
ing. Specify lead-free by replacing “-T” with “+T” when ordering.
Pin Configurations appear at end of data sheet.
Selector Guide appears at end of data sheet.
19-1508; Rev 7; 5/14
1 page  
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Typical Operating Characteristics (continued)
(VCC1 = +5V, TA = +25°C, unless otherwise noted.)
NORMALIZED RESET/WATCHDOG
PERIOD vs. TEMPERATURE
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
-60 -40 -20 0 20 40 60 80 100
TEMPERATURE (°C)
MAXIMUM VCC TRANSIENT DURATION
vs. RESET THRESHOLD OVERDRIVE
300
RESET OCCURS ABOVE LINE
250
200
150
100
50
0
0.01
0.1
1
RESET THRESHOLD OVERDRIVE, VRST - VCC (V)
RST1 PUSH-PULL
OUTPUT
OPEN-DRAIN
OUTPUT
RST2 PUSH-PULL
OUTPUT
PULLUP CHARACTERISTICS
MAX6351/60-07
5V
0
5V
RPULLUP = 100kΩ
CLOAD = 10pF
0
3V
400ns/div
0
MR
OPEN-DRAIN
OUTPUT
RST2 PUSH-PULL
OUTPUT
RST1 PUSH-PULL
OUTPUT
RESET DELAY vs.
RESET THRESHOLD OVERDRIVE
250
200
150
100
DELAY FROM FALL OF VCC2
50
DELAY FROM FALL OF VCC1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
RESET THRESHOLD OVERDRIVE, VRST - VCC (V)
MANUAL-RESET INPUT TO
OUTPUT DELAY
5VMAX6351/60-08
0
RPULLUP = 100kΩ
CLOAD = 10pF
5V
0
5V
0
5V
40ns/div
0
www.maximintegrated.com
Maxim Integrated │ 5
5 Page 
MAX6351–MAX6360
Dual/Triple-Voltage
μP Supervisory Circuits
Revision History
REVISION REVISION
NUMBER
DATE
7 5/14
DESCRIPTION
Changed the minimum value for the WDI input voltage spec in the Electrical
Characteristics table on page 3; rebranded data sheet
PAGES
CHANGED
1–11
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com.
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses
are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits)
shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2014 Maxim Integrated Products, Inc. │ 11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet MAX6358.PDF ] | |
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