Datasheet

MAX6342–MAX6345
6-Pin µP Reset Circuit with
Power-Fail Comparator
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +1.0V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C and V
CC
= +3V.) (Note 1)
Typical Operating Characteristics
(V
PFI
= V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
0
10
5
20
15
25
30
-40 10-15 35 60 85
SUPPLY CURRENT vs. SUPPLY VOLTAGE
AND TEMPERATURE
MAX6342-01
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
V
CC
= 5V
V
CC
= 3.3V
V
CC
= 2.5V
V
CC
= 1V
0
0
1sec/div
MAX6342-02
MAX6344L/MAX6345L
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
V
CC
RESET
1V/div
0
0
1sec/div
MAX6342-03
MAX6342M/MAX6345M
RESET OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
V
CC
RESET
1V/div
Note 1: Overtemperature limits are guaranteed by design and not production tested.
Note 2: Apply to each part in accordance with threshold voltage, output configuration, and manual reset status selected.
Note 3: Leakage parameters are guaranteed by design and not production tested.
V
µs
3
V
OVERDRIVE
= 15mV
PFI to PFO Delay
5
Output source current
mA
20
Output sink current
PFO Output Short-Circuit
Current
0.8 ✕ VCC
V
CC
= 4.5V, I
SOURCE
= 800µAV
OH
PFO Output Voltage
V
0.4
V
CC
= 4.5V, I
SINK
= 3.2mAV
OL
PFO Output Voltage
PFI Input Threshold
µs
0.2
MR to Reset Delay
µs
0.1
MR Glitch Rejection
µs
1
MR Minimum Pulse Width
kΩ
60
Open-Drain RESET Output
Leakage Current (Note 3)
I
LKG
1
µA
MR Input Low
V
IL
0.3 ✕ VCC
V
MR Input High
V
IH
0.7 ✕ VCC
V
MR Pull-Up Resistance
MAX6343 only, V
CC
> V
TH(MAX)
PARAMETER SYMBOL MIN TYP MAX UNITSCONDITIONS
PFI Leakage Current (Note 3)
1.2 1.25 1.3
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
±0.01 ±25
T
A
= -40°C to +85°C
T
A
= -85°C to +125°C
V
1.15 1.35
nA
±100
Reset Timeout Period t
RP
100 180 280
ms
T
A
= -40°C to +85°C
T
A
= -40°C to +125°C
80 360