MAX16016_0812 Datasheet, PDF (4/21 Pages) Maxim Integrated Products – Low-Power μP Supervisory Circuits with Battery-Backup Circuit and Chip-Enable Gating

Low-Power µP Supervisory Circuits with
Battery-Backup Circuit and Chip-Enable Gating
ELECTRICAL CHARACTERISTICS (continued)
(V_CC = 1.53V to 5.5V, V_BATT = 3V, T_A = -40°C to +85°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Note 2)
PARAMETER
WATCHDOG TIMER (WDI, WDO)
Watchdog Timeout Period
Minimum WDI Input Pulse Width
SYMBOL
t_WD
t_WDI
WDI Input Low Voltage
V_IL
(Note 6)
CONDITIONS
WDI Input High Voltage
WDI Input Current (Note 7)
WDO Output Low Voltage
V_IH
(Note 6)
V_WDI = 0 or 5.5V, time average
V_OL
V_CC = 1.1 x V_TH, I_SINK = 1mA, WDO
asserted
MIN
TYP MAX UNITS
0.83 1.235 1.64
s
320
ns
0.3 x
V
V_CC
0.7 x
V
V_CC
-1
+1
µA
0.3
V
WDO Output High Voltage
(Push-Pull Output)
V_OH
V_CC = 1.1 x V_TH, I_SOURCE = 100µA, WDO
deasserted
V_OUT
- 0.3
V
WDO Leakage Current
(Open-Drain Output)
V_WDO = 5.5V, WDO deasserted
1
µA
BATTERY-ON INDICATOR (BATTON)
Output Low Voltage
V_OL
BATTON Leakage Current
BATTON Output High Voltage
V_OH
I_SINK = 3.2mA, V_BATT = 2.1V
V_BATTON = 5.5V
V_CC = 0.9 x V_TH, I_SOURCE = 100µA,
BATTON asserted
V_OUT
- 0.3
0.3
V
1
µA
V
Output Short-Circuit Current
(Note 4)
CE GATING (CEIN, CEOUT)
CEIN Leakage Current
CEIN to CEOUT Resistance
CEOUT Short-Circuit Current
CEIN to CEOUT Propagation
Delay
Sink current, V_CC = 5V
60
mA
Reset asserted, V_CC = 0.9 x V_TH or 0V
Reset not asserted (Note 5)
Reset asserted, CEOUT = 0,
V_CC = 0.9 x V_TH
-1
+1
µA
8
50
Ω
0.75
2
mA
50Ω source, C_LOAD = 50pF, V_CC = 4.75V
1.5
7
ns
Output High Voltage
Reset to CEOUT Delay
V_CC = 5V, V_CC ≥ V_BATT, I_SOURCE = 100µA
0.8 x
V_CC
V
V_CC = 0V, V_BATT ≥ 2.2V I_SOURCE = 1µA
V_BATT -
0.1
12
µs
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