Datasheet

MAX6381–MAX6390
SC70/µDFN, Single/Dual Low-Voltage,
Low-Power µP Reset Circuits
3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= full range, T
A
= -40°C to +125°C, unless otherwise specified. Typical values are at T
A
= +25°C.) (Note 1)
Note 1: Specifications over temperature are guaranteed by design, not production tested.
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MR Minimum Input Pulse Width 1 µs
MR Glitch Rejection 100 ns
MR to Reset Delay 200 ns
MAX6381–MAX6389 32 63 100 kΩ
MR Internal Pullup Resistance
MAX6390 500 1560 3000 Ω
T
A
= +25°C 1.245 1.27 1.295
T
A
= 0°C to +85°C 1.232 1.308
RESET IN Input Threshold V
THRST
T
A
= -40°C to +125°C 1.219 1.321
V
RESET IN to RESET Delay
V
RESETIN
falling at 4mV/µs from
V
THRST
+ 40mV to V
THRST
- 40mV
4.5 µs
RESET IN Input Leakage Current I
RESET
IN
-50 ±1 +50 nA
V
CC
≥ 4.5V, I
SINK
= 3.2mA, reset asserted 0.4
V
CC
≥ 2.5V, I
SINK
= 1.2mA, reset asserted 0.3
Open-Drain RESET Output
Voltage
V
OL
V
CC
≥ 1.0V, I
SINK
= 80µA, reset asserted 0.3
V
Open-Drain RESET Output
Leakage Current
I
LKG
V
CC
> V
TH
, RESET not asserted 1.0 µA
V
CC
≥ 4.5V, I
SINK
= 3.2mA, reset asserted 0.4
V
CC
≥ 2.5V, I
SINK
= 1.2mA, reset asserted 0.3
V
OL
V
CC
≥ 1.0V, I
SINK
= 80µA, reset asserted 0.3
V
CC
≥ 4.5V, I
SOURCE
= 800µA, reset not
asserted
0.8 x
V
CC
Push-Pull RESET Output Voltage
V
OH
V
CC
≥ 2.5V, I
SOURCE
= 500µA, reset not
asserted
0.8 x
V
CC
V
V
CC
≥ 4.5V, I
SOURCE
= 800µA, reset asserted
0.8 x
V
CC
V
CC
≥ 2.5V, I
SOURCE
= 500µA, reset asserted
0.8 x
V
CC
V
CC
≥ 1.8V, I
SOURCE
= 150µA, reset asserted
0.8 x
V
CC
V
OH
V
CC
≥ 1.0V, I
SOURCE
= 1µA, reset asserted
0.8 x
V
CC
V
CC
≥ 4.5V, I
SINK
= 3.2mA, reset not
asserted
0.4
Push-Pull RESET Output Voltage
V
OL
V
CC
≥ 2.5V, I
SINK
= 1.2mA, reset not
asserted
0.3
V