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MAX6723AUTTGD2-T View Datasheet(PDF) - Maxim Integrated

Part NameMAX6723AUTTGD2-T MaximIC
Maxim Integrated MaximIC
DescriptionDual/Triple, Ultra-Low-Voltage, SOT23 µP Supervisory Circuits


MAX6723AUTTGD2-T Datasheet PDF : 18 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Dual/Triple, Ultra-Low-Voltage, SOT23 µP
Supervisory Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
VCC1, VCC2 ..........................................................-0.3V to +6V
Open-Drain RST, RST1, RST2, PFO, RST ................-0.3V to +6V
Push-Pull RST, RST1, PFO, RST...............-0.3V to (VCC1 + 0.3V)
Push-Pull RST2 .........................................-0.3V to (VCC2 + 0.3V)
RSTIN, PFI, MR, WDI ................................................-0.3V to +6V
Input Current/Output Current (all pins) ...............................20mA
Continuous Power Dissipation (TA = +70°C)
5-Pin SOT23-5 (derate 7.1mW/°C above +70°C) ........571mW
6-Pin SOT23-6 (derate 8.7mW/°C above +70°C) ........696mW
8-Pin SOT23-8 (derate 8.9mW/°C above +70°C) ........714mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VCC1 = 0.8V to 5.5V, VCC2 = 0.8V to 5.5V, GND = 0V, TA = -40°C to +125°C, unless otherwise noted. Typical values are at TA =
+25°C.) (Note 1)
PARAMETER
Supply Voltage
Supply Current
VCC1 Reset Threshold
VCC2 Reset Threshold
SYMBOL
VCC
ICC1
ICC2
VTH1
VTH2
CONDITIONS
VCC1 < 5.5V all I/O connections open,
outputs not asserted
VCC1 < 3.6V all I/O connections open,
outputs not asserted
VCC2 < 3.6V all I/O connections open,
outputs not asserted
VCC2 < 2.75V all I/O connections open,
outputs not asserted
L (falling)
M (falling)
T (falling)
S (falling)
R (falling)
Z (falling)
Y (falling)
W (falling)
V (falling)
T (falling)
S (falling)
R (falling)
Z (falling)
Y (falling)
W (falling)
V (falling)
I (falling)
H (falling)
G (falling)
F (falling)
E (falling)
D (falling)
MIN TYP MAX UNITS
0.8
5.5
V
15
39
10
28
µA
4
11
3
9
4.500 4.625 4.750
4.250 4.375 4.500
3.000 3.075 3.150
2.850 2.925 3.000
2.550 2.625 2.700
V
2.250 2.313 2.375
2.125 2.188 2.250
1.620 1.665 1.710
1.530 1.575 1.620
3.000 3.075 3.150
2.850 2.925 3.000
2.550 2.625 2.700
2.250 2.313 2.375
2.125 2.188 2.250
1.620 1.665 1.710
1.530 1.575 1.620
V
1.350 1.388 1.425
1.275 1.313 1.350
1.080 1.110 1.140
1.020 1.050 1.080
0.810 0.833 0.855
0.765 0.788 0.810
2 _______________________________________________________________________________________
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General Description
The MAX6715A–MAX6729A/MAX6797A are ultra-low-voltage microprocessor (µP) supervisory circuits designed to monitor two or three system power-supply voltages. These devices assert a system reset if any monitored supply falls below its factory-trimmed or adjustable threshold and maintain reset for a minimum timeout period after all supplies rise above their thresholds. The integrated dual/triple supervisory circuits significantly improve system reliability and reduce size compared to separate ICs or discrete components.

Features
♦ VCC1 (Primary Supply) Reset Threshold Voltages from 1.58V to 4.63V
♦ VCC2 (Secondary Supply) Reset Threshold Voltages from 0.79V to 3.08V
♦ Externally Adjustable RSTIN Threshold for Auxiliary/Triple-Voltage Monitoring
(0.62V Internal Reference)
♦ Watchdog Timer Option
  35s (min) Long Startup Period
  1.12s (min) Normal Timeout Period
♦ Manual-Reset Input Option
♦ Power-Fail Input/Power-Fail Output Option (Push-Pull and Open-Drain Active-Low)
♦ Guaranteed Reset Valid Down to VCC1 or VCC2 = 0.8V
♦ Reset Output Logic Options
♦ Immune to Short VCC Transients
♦ Low Supply Current 14µA (typ) at 3.6V
♦ Watchdog Disable Feature
♦ Small 5-, 6-, and 8-Pin SOT23 Packages

Applications
Multivoltage Systems
Telecom/Networking Equipment
Computers/Servers
Portable/Battery Operated Equipment
Industrial Equipment
Printers/Fax Machines
Set-Top Boxes

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