MAX6744 Просмотр технического описания (PDF) - Maxim Integrated
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MAX6744 Datasheet PDF : 16 Pages
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Low-Power Dual-/Triple-Voltage SC70 µP
Supervisory Circuits
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 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
MIN TYP MAX
POWER-FAIL COMPARATOR (MAX6742/MAX6745 only)
Power Fail In Threshold (Note 5)
Power Fail In Current
VTH-PFI
IPFI
TA = 0°C to +85°C
TA = -40°C to +85°C
VPFI ≥ 0.1V (Note 2)
PFO Output Low
VCC1 ≥ 1.53V, ISINK = 500µA
VOL
VCC1 ≥ 2.03V, ISINK = 1.2mA
VCC1 ≥ 4.25V, ISINK = 3.2mA
0.476
0.468
-10
0.488
0.500
0.507
+10
0.3
0.3
0.4
PFI falling at 10mV/µs from VTH-PFI +
PFI to PFO Propagation Delay
tP
100mV to VTH-PFI - 100mV or rising at
10mV/µs from VTH-PFI - 100mV to VTH-PFI +
35
100mV (Note 5)
PFO Startup Delay
To output valid (Note 5)
5
Note 1: All devices are 100% tested at TA = +25°C. All temperature limits are guaranteed by design.
Note 2: Guaranteed by design.
Note 3: tRD timeout period begins after POK1 timeout period (tPOKP) and VCC2 ≥ VTH2 (max) (MAX6741/MAX6744).
Note 4: Refers to the manual reset function obtained by forcing the RESET output low.
Note 5: VCC1 ≥ 1.6V.
UNITS
V
nA
V
µs
ms
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
10
VCC1 = 3.3V, VCC2 = 2.5V
9
8
7
TOTAL
6
5
ICC1
4
3
2
ICC2
1
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
Typical Operating Characteristics
SUPPLY CURRENT vs. TEMPERATURE
10
VCC1 = 2.5V, VCC2 = 1.8V
9
8
7
6
TOTAL
5
ICC1
4
3
2
ICC2
1
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
SUPPLY CURRENT vs. TEMPERATURE
10
VCC1 = 1.8V, VCC2 = 1.2V
9
8
7
6
5
TOTAL
4
3
ICC1
2
1
ICC2
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
_______________________________________________________________________________________ 5
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