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LM3709 Datasheet(PDF) 5 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LM3709
Description  Microprocessor Supervisory Circuits with Low Line Output, Manual Reset and Watchdog Timer
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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LM3709 Datasheet(HTML) 5 Page - National Semiconductor (TI)

 
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Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (V
CC)
−0.3V to 6.0V
All Other Inputs
−0.3V to V
CC + 0.3V
ESD Ratings (Note 2)
Human Body Model
Machine Model
1.5kV
150V
Power Dissipation
(Note 3)
Operating Ratings (Note 1)
Temperature Range
−40˚C
≤ T
J
≤ 85˚C
LM3708/LM3709 Series Electrical Characteristics
Limits in the standard typeface are for T
J = 25˚C and limits in boldface type apply over full operating range. Unless otherwise
specified: V
CC = +2.2V to 5.5V.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
POWER SUPPLY
V
CC
Operating Voltage
Range: V
CC
LM3708
1.0
5.5
V
LM3709
1.2
5.5
I
CC
V
CC Supply
Current
All inputs = V
CC; all outputs floating
28
50
µA
RESET THRESHOLD
V
RST
Reset Threshold
V
CC falling
−0.5
−2
V
RST
+0.5
+2
%
V
CC falling: TA = 0˚C to 70˚C
−1.5
+1.5
V
RSTH
Reset Threshold
Hysteresis
0.0032
V
RST
mV
t
RP
Reset Timeout
Period
Reset Timeout Period = E, J, N, S
Reset Timeout Period = F, K, P, T
Reset Timeout Period = G, L, Q, U
Reset Timeout Period = H, M, R, V
1
20
140
1120
1.4
28
200
1600
2
40
280
2240
ms
t
RD
V
CC to Reset
Delay
V
CC falling at 1mV/µs
20
µs
RESET (LM3709)
V
OL
RESET
V
CC > 2.25V, ISINK = 900µA
0.3
V
V
CC > 2.7V, ISINK = 1.2mA
0.3
V
CC > 4.5V, ISINK = 3.2mA
0.4
V
OH
RESET
V
CC > 1.2V, ISOURCE = 50µA
0.8 V
CC
V
V
CC > 1.8V, ISOURCE = 150µA
0.8 V
CC
V
CC > 2.25V, ISOURCE = 300µA
0.8 V
CC
V
CC > 2.7V, ISOURCE = 500µA
0.8 V
CC
V
CC > 4.5V, ISOURCE = 800µA
V
CC − 1.5V
I
LKG
Output Leakage
Current
V
RESET = 5.5V
1.0
µA
RESET (LM3708)
V
OL
RESET
V
CC > 1.0V, ISINK = 50µA
0.3
V
V
CC > 1.2V, ISINK = 100µA
0.3
V
CC > 2.25V, ISINK = 900µA
0.3
V
CC > 2.7V, ISINK = 1.2mA
0.3
V
CC > 4.5V, ISINK = 3.2mA
0.4
V
OH
RESET
V
CC > 2.25V, ISOURCE = 300µA
0.8 V
CC
V
CC > 2.7V, ISOURCE = 500µA
0.8 V
CC
V
CC > 4.5V, ISOURCE = 800µA
V
CC − 1.5V
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