LM3706XQBPX-308 NSC [National Semiconductor], LM3706XQBPX-308 Datasheet - Page 6

• Manufacturer Part Number: LM3706XQBPX-308
• Description: Microprocessor Supervisory Circuits with Low Line Output and Watchdog Timer
• Manufacturer: NSC [National Semiconductor]

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LLO
LLO OUTPUT
LM3706/LM3707 Series Electrical Characteristics
Symbol
Limits in the standard typeface are for T
specified: V
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device
is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the
listed conditions.
Note 2: The Human Body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin. The machine model is a 200pF capacitor discharged
directly into each pin.
Note 3: The maximum allowable power dissipation is a function of the maximum junction temperature, T
and the ambient temperature, T
Where the value of θ
V
V
WDI
WDI
V
LLOTH
V
t
t
LLOT
WD
CD
OH
OL
T
CC
Watchdog Input
Current
Watchdog Input
Threshold
Watchdog
Timeout Period
LLO Output
Voltage
LLO Output
Threshold
(V
falling)
Low-Line
Comparator
Hysteresis
Low-Line
Comparator Delay
LLO
= +2.2V to 5.5V.
Parameter
J-A
− V
for the micro SMD package is 220˚C/W.
RST
A
, V
. The maximum allowable power dissipation at any ambient temperture is calculated using:
CC
Watchdog Timeout Period = E, F, G, H
Watchdog Timeout Period = J, K, L, M
Watchdog Timeout Period = N, P, Q, R
Watchdog Timeout Period = S, T, U, V
V
V
V
V
V
V
V
CC
CC
CC
CC
CC
CC
CC
falling at 1mV/µs
>
>
>
>
>
>
J
2.25V, I
2.7V, I
4.5V, I
2.25V, I
2.7V, I
4.5V, I
= 25˚C and limits in boldface type apply over full operating range. Unless otherwise
SINK
SINK
SOURCE
SOURCE
Conditions
SINK
SOURCE
= 1.2mA
= 3.2mA
= 900µA
= 500µA
= 800µA
= 300µA
6
V
1.01 • V
CC
0.2 • V
0.8 V
0.8 V
17900
1120
J
Min
4.3
(MAX), the junction-to-ambient thermal resistance, θ
−1
71
(Continued)
− 1.5V
CC
CC
CC
RST
0.0032 • V
1.02 • V
25600
1.225
1600
Typ
102
6.2
20
RST
RST
1.03 • V
0.8 • V
38400
2400
Max
153
9.3
0.3
0.3
0.4
+1
RST
CC
Units
mV
ms
µA
µs
J-A
V
V
V
,