MAX6351 데이터 시트보기 (PDF) - Maxim Integrated
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MAX6351 Datasheet PDF : 11 Pages
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Dual/Triple-Voltage
µP Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(VCC1 = VCC2 = +1.2V to +5.5V, TA = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MR Pullup Resistance
MR Minimum Pulse Width
tRP
MR Glitch Rejection
MR to Reset Delay
tMD
ADJUSTABLE RESET COMPARATOR INPUT (MAX6355/MAX6356/MAX6357)
RSTIN Input Threshold
VRSTIN
VCC1 > VTH1(MAX),
VCC2 > VTH2(MAX)
TA = +25°C
TA = -40°C to +85°C
RSTIN Input Current
RSTIN Hysteresis
IRSTIN 0 < VRSTIN < VCC1 - 0.3V
MIN
32
1
1.20
1.19
-25
TYP
63.5
100
0.1
1.22
2.5
MAX
100
UNITS
kΩ
µs
ns
µs
1.24
V
1.25
25
nA
mV
Note 1: Overtemperature limits are guaranteed by design and not production tested.
Note 2: The reset output is guaranteed to be in the correct state if either VCC1 or VCC2 is within its specified region of operation.
Note 3: The reset output(s) is asserted if either VCC1 or VCC2 drops below its associated trip point.
Note 4: Guaranteed by design. Not production tested.
Note 5: WDI is internally serviced within the watchdog timeout period if WDI is left unconnected.
Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low.
(VCC1 = +5V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
SUPPLY CURRENT vs. TEMPERATURE
20
ICC1 (VCC1 = 5.0V, VCC2 = 3.3V)
15
ICC1 (VCC1 = 3.3V, VCC2 = 2.5V)
10
5
0
-40
ICC2 (VCC1 = 5.0V, VCC2 = 3.3V)
ICC2 (VCC1 = 3.3V, VCC2 = 2.5V)
-15
10
35
60
85
TEMPERATURE (°C)
RESET vs. VCC1 (VCC2 > VTH2)
5.0
4.5
4.0
3.5
3.0
VTH
2.5
2.0
1.5
1.0
0.5
0
0
MAX6356L_
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCC1 (V)
RESET vs. VCC1 (VCC2 = GND)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
VCC1 (V)
4 _______________________________________________________________________________________
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