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