MAX6721 Просмотр технического описания (PDF) - Maxim Integrated
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MAX6721 Datasheet PDF : 19 Pages
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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 +85°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 = VCC2 = 0.8V to 5.5V, GND = 0, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage
Supply Current
VCC
ICC1
ICC2
VCC1 < 5.5V, all I/O pins open
VCC1 < 3.6V, all I/O pins open
VCC2 < 3.6V, all I/O pins open
VCC2 < 2.75V, all I/O pins open
L (falling)
0.8
5.5
V
15
39
10
28
µA
4
11
3
9
4.500 4.625 4.750
VCC1 Reset Threshold
VTH1
M (falling)
T (falling)
S (falling)
R (falling)
Z (falling)
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
Y (falling)
W (falling)
2.125 2.188 2.250
1.620 1.665 1.710
V (falling)
T (falling)
S (falling)
R (falling)
1.530
3.000
2.850
2.550
1.575
3.075
2.925
2.625
1.620
3.150
3.000
2.700
Z (falling)
Y (falling)
2.250 2.313 2.375
2.125 2.188 2.250
VCC2 Reset Threshold
VTH2
W (falling)
V (falling)
I (falling)
H (falling)
G (falling)
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
F (falling)
E (falling)
1.020 1.050 1.080
0.810 0.833 0.855
Reset Threshold Tempco
D (falling)
0.765 0.788 0.810
20
ppm/°C
Reset Threshold Hysteresis
VHYST Referenced to VTH typical
0.5
%
2 _______________________________________________________________________________________
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