MAX825YEXK Просмотр технического описания (PDF) - Maxim Integrated
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MAX825YEXK
Maxim Integrated
MAX825YEXK Datasheet PDF : 10 Pages
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5-Pin Microprocessor Supervisory Circuits With
Watchdog Timer and Manual Reset
ELECTRICAL CHARACTERISTICS (continued)
(VCC = +4.75V to +5.5V for MAX82_L, VCC = +4.5V to +5.5V for MAX82_M, VCC = +3.15V to +3.6V for MAX82_T, VCC = +3V
to +3.6V for MAX82_S, VCC = +2.7V to +3.6V for MAX82_R, VCC = +2.38V to +2.75V for MAX82_Z, VCC = +2.25V to +2.75V for
MAX82_Y, TA = TMIN to TMAX, TA = -40°C to +85°C (SC70), TA = -40°C to +125°C (SOT23), unless otherwise noted. Typical values
are at TA = +25°C.) (Note 1)
PARAMETER
Reset Threshold Hysteresis
SYMBOL
CONDITIONS
MAX82_L/M
MAX82_T/S/R/Z/Y
MIN TYP MAX UNITS
10
mV
5
Reset Threshold Temperature
Coefficient
40
ppm/°C
Reset Timeout Period
VCC to RESET Delay
tRP
VRST - VCC = 100mV
140 200 280
ms
20
µs
VOH
MAX82_L/M, VCC = VRST max,
ISOURCE = 120µA
MAX82_T/S/R/Z/Y, VCC = VRST max,
ISOURCE = 30µA
VCC - 1.5
0.8 ✕ VCC
RESET Output Voltage
MAX82_L/M, VCC = VRST min,
ISINK = 3.2mA
MAX82_T/S/R/Z/Y VCC = VRST min,
ISINK = 1.2mA
VOL
TA = 0°C to +70°C, VCC = 1V,
VCC falling, ISINK = 50µA
0.4
V
0.3
0.3
RESET Output Short-Circuit
Current (Note 2)
ISOURCE
VOH
TA = TMIN to TMAX, VCC = 1.2V,
VCC falling, VBATT = 0V, ISINK = 100µA
MAX82_L/M, RESET = 0V, VCC = 5.5V
MAX82_T/S/R/Z/Y, RESET = 0V, VCC = 3.6V
VCC > 1.8V, ISOURCE = 150µA
0.8 ✕ VCC
800
µA
400
RESET Output Voltage
MAX824L/M, MAX825L/M,
VCC = VRST max, ISINK = 3.2mA
VOL
MAX824T/S/R/Z/Y, MAX825T/S/R/Z/Y,
VCC = VRST max, ISINK = 1.2mA
0.4
V
0.3
WATCHDOG INPUT (MAX823/MAX824)
Watchdog Timeout Period
tWD
1.12 1.60 2.40
s
WDI Pulse Width
WDI Input Voltage (Note 3)
WDI Input Current (Note 4)
tWDI
VIL = 0.4V, VIH = 0.8 ✕ VCC
VIL
VIH
WDI = VCC, time average
WDI = 0, time average
50
ns
0.3 ✕ VCC
V
0.7 ✕ VCC
120 160
µA
-20
-15
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