Datasheet

(V
CC
1 = V
CC
2 = +1.2V to +5.5V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Reset Threshold Tempco ΔV
TH
/°C 20 ppm/°C
Reset Threshold Hysteresis V
TH
/500 V
V
CC
to Reset Delay 100mV overdrive 20 µs
Reset Timeout Period t
RP
V
CC
1 > V
TH
1 (MAX), V
CC
2 > V
TH
2 (MAX) 100 180 280 ms
RESET Output Voltage Low V
OL
V
CC
1 or V
CC
2 ≥ 2.7V, I
SINK
= 1.2mA 0.3
V
V
CC
1 or V
CC
2 ≥ 4.5V, I
SINK
= 3.2mA 0.4
V
CC
1 or V
CC
2 ≥ 1V, I
SINK
= 50µA,
T
A
= 0°C to +70°C
0.3
V
CC
1 or V
CC
2 ≥ 1.2V, ISINK = 50µA;
T
A
= -40°C to +85°C
0.3
RESET Output-Voltage High
(MAX6351/MAX6353/MAX6354/
MAX6356/MAX6357/MAX6359/
MAX6360 only)
V
OH
(_W, _V versions only),
V
CC
1 > V
TH
1
(MAX)
,
V
CC
2 > V
TH
2
(MAX)
I
SOURCE
= 350µA 0.8 x V
CC
V
(_Y versions only),
V
CC
1 > V
TH
1
(MAX)
,
V
CC
2 > V
TH
2
(MAX)
I
SOURCE
= 500µA 0.8 x V
CC
(_T, _S, _R versions only),
V
CC
1 > V
TH
1
(MAX)
,
V
CC
2 > V
TH
2
(MAX)
I
SOURCE
= 800µA V
CC
- 1.5
WATCHDOG INPUT (MAX6358/MAX6359/MAX6360)
Watchdog Timeout Period t
WD
First timeout period after reset 25.6 46.4 72.0
s
After rst WDI falling edge 1.6 2.9 4.5
WDI Pulse Width (Note 4) t
WDI
V
IL
= 0.4V, V
IH
= 0.8 x V
CC
50 ns
WDI Input Voltage (Note 5)
V
IL
V
CC
1 = 5V
0.3 x V
CC
V
V
IH
0.65 x V
CC
WDI Input Current (Note 6)
V
WDI
= V
CC
120 160
µA
V
WDI
= 0 -20 -15
MANUAL RESET INPUT
MR Input Voltage
V
IL
MAX63_ _L_, MAX63_ _M_, V
CC
1 > V
TH
1
(MAX)
0.8
V
V
IH
MAX63_ _L_, MAX63_ _M_, V
CC
1 > V
TH
1
(MAX)
2.3
V
IL
MAX63_ _ _Y, V
CC
1 > V
TH
1
(MAX)
0.3 x V
CC
V
IH
MAX63_ _ _Y, V
CC
1 > V
TH
1
(MAX)
0.7 x V
CC
MAX6351–MAX6360 Dual/Triple-Voltage
μP Supervisory Circuits
www.maximintegrated.com
Maxim Integrated │ 3
Electrical Characteristics (continued)