3-Pin, Ultra-Low-Power SC70/SOT
µP Reset Circuits
ABSOLUTE MAXIMUM RATINGS
Terminal Voltage (with respect to GND)
Continuous Power Dissipation (T = +70°C)
A
V
...........................................................................-0.3V to +6V
3-Pin SC70 (derate 2.7mW/°C above +70°C)...............174mW
3-Pin SOT23 (derate 4mW/°C above +70°C)................320mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CC
RESET, RESET (push-pull) .........................-0.3V to (V
RESET (open drain)..................................................-0.3V to +6V
Input Current (V ).............................................................20mA
Output Current (RESET, RESET).........................................20mA
+ 0.3V)
CC
CC
Rate of Rise (V )...........................................................100V/µs
CC
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
= full range, T = -40°C to +85°C, unless otherwise noted. Typical values are at T = +25°C and V
= 3V.) (Note 1)
CC
A
A
CC
PARAMETER
SYMBOL
CONDITIONS
= 0°C to +70°C
MIN
1.0
TYP
MAX
5.5
UNITS
T
T
A
V
CC
Range
V
= -40°C to +85°C
1.2
5.5
A
MAX632_ only, V = 3.0V for V ≤ 2.93V,
CC
CC
TH
0.5
1.0
1.0
V
= 3.2V for V > 2.93V, no load
TH
Supply Current
I
µA
V
CC
V
CC
= 5.5V, no load
1.75
V
1.5%
-
V
1.5%
+
TH
TH
T
T
= +25°C
V
A
TH
Reset Threshold
V
Table 1
TH
V
TH
-
V
TH
+
= -40°C to +85°C
V
TH
A
2.5%
2.5%
Reset Threshold Tempco
∆V /°C
40
20
ppm/°C
µs
TH
V
CC
to Reset Delay
V = V to (V - 100mV)
CC TH TH
Reset Active Timeout Period
100
185
280
0.3
ms
RESET Output Voltage
(MAX6326/MAX6328/
MAX6346/MAX6348)
I
I
= 1.6mA, V
= 100µA, V
> 2.1V, reset asserted
SINK
CC
V
V
V
OL
≥ 1.2V, reset asserted
0.4
SINK
CC
I
I
I
= 500µA, V
= 800µA, V
= 800µA, V
= 500µA, V
= 3.2V, MAX6326 only
0.8 · V
0.8 · V
0.8 · V
0.8 · V
0.8 · V
SOURCE
SOURCE
SOURCE
CC
CC
CC
CC
CC
RESET Output Voltage
(MAX6326/MAX6346)
V
V
= 4.5V, V ≤ 4.38V
TH
OH
CC
CC
CC
CC
= V , V ≥ 4.5V
TH(MAX) TH
I
≥ 2.1V, reset asserted
≥ 1.2V, reset asserted
SOURCE
SOURCE
OH
I
= 50µA, V
CC
I
= 1.2mA, V
≥ 3.2V, reset not asserted,
SINK
CC
0.3
RESET Output Voltage
(MAX6327/MAX6347)
MAX6327 only
V
V
OL
I
= 3.2mA, V
≥ 4.5V, reset not asserted,
SINK
CC
0.4
0.4
V
≤ 4.38V
TH
I
= 3.2mA, V
= V , V ≥ 4.5V
TH(MAX) TH
SINK
CC
MAX6326/MAX6327/MAX6328
MAX6346/MAX6347/MAX6348
6.3
9.5
RESET Threshold
Hysteresis
mV
µA
Open-Drain RESET Output
Leakage Current
0.1
Note 1: Overtemperature limits are guaranteed by design and not production tested.
2
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