Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature .....................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= 1.2V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3.3V, T
A
= +25°C.) (Note 2)
PARAMETER
Supply Voltage
SYMBOL
V
CC
CONDITIONS
T
A
= 0°C to +125°C
T
A
= -40°C to 0°C
V
CC
= 5.0V, T
A
=
-40°C to +85°C
V
CC
= 3.3V, T
A
=
-40°C to +85°C
V
CC
> V
TH
+ 150mV,
no load, reset output
deasserted (Note 3)
V
CC
= 1.8V, T
A
=
-40°C to +85°C
V
CC
= 5.0V, T
A
=
-40°C to +125°C
V
CC
= 3.3V, T
A
=
-40°C to +125°C
V
CC
= 1.8V, T
A
=
-40°C to +125°C
V
CC
< V
TH
, no load, reset output asserted
T
A
= +25°C
V
CC
Reset Threshold
V
TH
V
CC
falling (see Table 1)
T
A
= -40°C to
+125°C
V
TH
-
1.5%
V
TH
-
2.5%
0.5
80
10.5
14.18
17.0
MIN
1.1
1.2
142
132
125
142
132
125
7
TYP
MAX
5.5
5.5
210
185
175
nA
430
415
400
15
V
TH
+
1.5%
V
V
TH
+
2.5%
%
µs
ms
µA
UNITS
V
Supply Current
I
CC
Hysteresis
V
CC
to Reset Delay
Reset Timeout Period
V
HYST
t
RD
t
RP
V
CC
rising
V
CC
falling from (V
TH
+ 100mV) to
(V
TH
- 100mV) at 10mV/µs
C
SRT
= 2700pF (Note 4)
2
Maxim Integrated
MAX16056–MAX16059
125nA Supervisory Circuits with Capacitor-
Adjustable Reset and Watchdog Timeouts
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= 1.2V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= 3.3V, T
A
= +25°C.) (Note 2)
PARAMETER
SRT Ramp Current
SRT Ramp Threshold
Watchdog Timeout Clock Period
SYMBOL
I
RAMP1
V
RAMP1
t
WDPER
CONDITIONS
T
A
= -40°C to
V
SRT
= 0V to V
RAMP1
, +125°C
V
CC
= 1.6V to 5V
T
A
= +25°C
V
CC
= 1.6V to 5V (V
RAMP
rising)
T
A
= +25°C
T
A
= -40°C to +125°C
T
A
= -40°C to
V
SWT
= 0V to V
RAMP2
, +125°C
V
CC
= 1.6V to 5V
T
A
= +25°C
V
CC
= 1.6V to 5V (V
RAMP2
rising)
V
CC
≥
1.0V, I
SINK
= 50µA
V
OL
V
CC
≥
2.7V, I
SINK
= 1.2mA
V
CC
≥
4.5V, I
SINK
= 3.2mA
RESET
Output Voltage
V
OH
MAX16056/MAX16057
V
CC
≥
1.8V,
I
SOURCE
= 200µA
V
CC
≥
2.25V,
I
SOURCE
= 500µA
V
CC
≥
4.5V,
I
SOURCE
= 800µA
RESET
Output-Leakage Current,
Open Drain
I
LKG
V
IH
Input-Logic Levels
V
IL
MR
Minimum Pulse Width
MR
Glitch Rejection
MR
to
RESET
Delay
WDI Minimum Pulse Width
Input Leakage Current
t
MRD
(Note 5)
MR,
WDI, WDS is connected to GND or V
CC
150
-100
+100
t
MPW
1
200
250
V
CC
> V
TH
, reset not asserted, V
RESET
=
5.5V (MAX16058/MAX16059)
0.7 x
V
CC
0.3 x
V
CC
µs
ns
ns
ns
nA
0.8 x
V
CC
0.8 x
V
CC
0.8 x
V
CC
1.0
µA
MIN
197
210
1.173
5
3.5
197
210
1.173
TYP
240
240
1.235
6.4
6.4
240
240
1.235
MAX
282
270
1.297
8
9.5
282
nA
270
1.297
0.3
0.3
0.4
V
V
V
ms
UNITS
nA
SWT Ramp Current
SWT Ramp Threshold
I
RAMP2
V
RAMP2
V
Note 2:
Note 3:
Note 4:
Note 5:
Devices are production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by design.
WDI input period is 1s with t
RISE
and t
FALL
< 50ns.
Worst case of SRT ramp current and voltage is used to guarantee minimum and maximum limits.
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