LM9073T National Semiconductor, LM9073T Datasheet - Page 4

• Manufacturer Part Number: LM9073T
• Description: Dual High Current Low-Dropout System Regulator
• Manufacturer: National Semiconductor

www.national.com
Symbol
Input Current
IN
LIN
Reset Output
V
V
V
V
R
T
T
T
Watchdog
V
V
T
T
R
Control Inputs
V
V
I
ON
OFF
R
Electrical Characteristics
ON/OFF
The following specifications apply for 6V
DELAY
RISE
FALL
WD
PW
THRL
THRH
LOW
HIGH
P−U
TRIGL
TRIGR
TRIG
ON
OFF
P−D
ON
0.3
K−A
DO
K−A
on each regulator output.
Additional Input Current with
both Regulators ON
Additional Input Current when in
Dropout
Low Switching Threshold
High Switching Threshold
Logic Low Output Threshold
Logic High Output Threshold
Internal Pull-Up Resistance
Reset Delay Interval
Output Rise Time
Output Fall Time
Trigger Input Logic Low Voltage
Trigger Input Logic High Level
Watchdog Refresh Window
Watchdog Trigger Pulse Width
Trigger Input Pull-down
Resistance
ON Threshold for ON/OFF Input
OFF Threshold for ON/OFF
Inpu
ON/OFF Input Current
Turn ON Threshold for Keep
Alive Input
Turn OFF Threshold for Keep
Alive Input
Pull−Down Resistance at Keep
Alive Input
Parameter
(Continued)
v
IN
19V, t
V
I
I
800mA
0V
I
I
800mA
V
Reset Adjust (pin 11 )open
circuited
Reset Adjust (pin 11) shorted to
ground
V
1V
R
Normal opeation,
V
= 0
C
From 10% V
C
From 90% V
C
C
leakage)
I
watchdog
Rseries = 22k
Rseries = 22k
1.4V
−0.3V
(Note 3)
0V
LEXT
LTOTAL
LTOTAL
LTOTAL
WATCHDOG
IN
MAIN
MAIN
THRL
RESET
DELAY
LRESET
LRESET
WATCHDOG
CASE
<
V
V
8V, I
V
output controls Reset
output controls Reset
MAIN
K−A
V
IN
= 700mA + 100mA =
= I
= 700mA + 100mA =
V
= 50k
= 0.1µF
= 25˚C unless otherwise specified. C
V
ON/OFF
= 50pF
= 50pF
MAIN
<
ON/OFF
4
Conditions
LTOTAL
MAIN
for charging the
8V, (Note 4)
MAIN
MAIN
= 0.1µF (low
5V
V
THRL
+ I
to V
THRH
(Note 3)
to 90% V
to 10% V
= I
4.5V
LEXT
7V(Note 6)
MAIN
MAIN
,, I
SOURCE
+
MAIN
MAIN
−50mV
V
5.35
Min
4.0
4.5
2.4
3.5
1.5
MAIN
35
35
10
−1
2
5
1
2
5
LM9073
OUT
6µF with 0.3
V
Max
5.75
1.2
1.5
4.2
4.7
0.4
6.0
1.5
0.5
.08
4.5
2.5
0.8
MAIN
70
70
40
12
40
5
I
I
LTOTAL
LTOTAL
Units
ESR
mS
mS
mA
k
k
k
µS
µS
µS
µA
V
V
V
V
X
X
V
V
V
V
V
V
V