Datasheet

ADM6326/ADM6328/ADM6346/ADM6348
Rev. 0 | Page 3 of 12
SPECIFICATIONS
T
A
= −40°C to +85°C, unless otherwise noted. Typical values are at T
A
= 25°C and V
CC
= 3 V. Overtemperature limits are guaranteed by design.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
OPERATING VOLTAGE RANGE, V
CC
1.0 5.5 V
INPUT CURRENT, I
CC
0.5 1.0 µA ADM6326/ADM6328 only, V
CC
= 3.0 V for V
TH
≤
2.93 V, V
CC
= 3.2 V for V
TH
> 2.93 V, no load
1.0 1.75 µA V
CC
= 5.5 V, no load
RESET THRESHOLD
Threshold Voltage, V
TH
(See Table 2) V
TH
− 2.5% V
TH
V
TH
+ 2.5% V
V
TH
− 1.5% V
TH
V
TH
+ 1.5% V T
A
= 25°C
Temperature Coefficient 40 ppm/°C
Hysteresis
ADM6326/ADM6328 6.3 mV
ADM6346/ADM6348 9.5 mV
TIMING CHARACTERISTICS
V
CC
to Reset Delay (t
RD
) 20 µs V
CC
= V
TH
to (V
TH
− 100 mV)
Reset Active Timeout Period (t
RP
) 100 185 280 ms
RESET
OUTPUT VOLTAGE LOW, V
OL
0.3 V V
CC
> 2.1 V, I
SINK
= 1.6 mA, reset asserted
0.4 V V
CC
≥ 1.2 V, I
SINK
= 100 A, reset asserted
RESET
OUTPUT VOLTAGE HIGH, V
OH
0.8 × V
CC
V ADM6326 only, V
CC
= 3.2 V, I
SOURCE
= 500 µA
0.8 × V
CC
V ADM6326/ADM6346 only, V
CC
= 4.5 V,
I
SOURCE
= 800 µA, V
TH
≤ 4.38 V
0.8 × V
CC
V ADM6326/ADM6346 only, V
CC
= V
TH(MAX)
,
I
SOURCE
= 800 µA, V
TH
≥ 4.5 V
OPEN-DRAIN
RESET
OUTPUT LEAKAGE CURRENT
0.1 µA
Table 2. Reset Threshold Voltage
T
A
= 25°C
T
A
= −40°C to +85°C
Parameter
Min Typ Max Min Max
Unit
RESET THRESHOLD VOLTAGE (V
TH
)
ADM632x-22 2.167 2.2 2.233 2.145 2.25 V
ADM632x-23 2.285 2.32 2.355 2.262 2.375 V
ADM632x-24 2.364 2.4 2.436 2.34 2.46 V
ADM632x-25 2.462 2.5 2.537 2.437 2.562 V
ADM632x-26 2.591 2.63 2.669 2.564 2.696 V
ADM632x-27 2.66 2.7 2.741 2.633 2.768 V
ADM632x-28 2.758 2.8 2.842 2.73 2.87 V
ADM632x-29 2.886 2.93 2.974 2.857 3.0 V
ADM632x-30 2.955 3.00 3.045 2.925 3.075 V
ADM632x-31 3.034 3.08 3.126 3.003 3.15 V
ADM634x-33 3.25 3.3 3.35 3.217 3.383 V
ADM634x-34 3.349 3.4 3.451 3.315 3.485 V
ADM634x-35 3.447 3.5 3.552 3.412 3.587 V
ADM634x-36 3.546 3.6 3.654 3.51 3.69 V
ADM634x-37 3.644 3.7 3.755 3.607 3.792 V
ADM634x-38 3.743 3.8 3.857 3.705 3.895 V
ADM634x-39 3.841 3.9 3.958 3.802 3.997 V
ADM634x-40 3.94 4.0 4.06 3.9 4.1 V
ADM634x-41 4.038 4.1 4.161 3.997 4.202 V
ADM634x-42 4.137 4.2 4.263 4.095 4.305 V
ADM634x-43 4.235 4.3 4.364 4.192 4.407 V
ADM634x-44 4.314 4.38 4.446 4.27 4.489 V
ADM634x-45 4.432 4.5 4.567 4.387 4.612 V
ADM634x-46 4.56 4.63 4.699 4.514 4.746 V