LM2940T-9.0 National Semiconductor, LM2940T-9.0 Datasheet - Page 6

• Manufacturer Part Number: LM2940T-9.0
• Description: IC,VOLT REGULATOR,FIXED,+9V,BIPOLAR,SIP,3PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM2940T-9.0

• Rohs Compliant: NO

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Long Term
Stability
Dropout Voltage
Short Circuit
Current
Maximum Line
Transient
Reverse Polarity
DC Input
Voltage
Reverse Polarity
Transient Input
Voltage
Electrical Characteristics
V
ture range of the indicated device. All other specifications apply for T
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Conditions are conditions under which the device functions
but the specifications might not be guaranteed. For guaranteed specifications and test conditions see the Electrical Characteristics.
Note 2: The maximum allowable power dissipation is a function of the maximum junction temperature, T
ambient temperature, T
The value of
The effective value of
package are 39˚C/W and 4˚C/W respectively.
Note 3: ESD rating is based on the human body model, 100 pF discharged through 1.5 k .
Note 4: All limits are guaranteed at T
All limits at T
methods.
Note 5: All limits are guaranteed at T
All limits are 100% production tested and are used to calculate Outgoing Quality Levels.
Note 6: Output current will decrease with increasing temperature but will not drop below 1A at the maximum specified temperature.
Typical Performance Characteristics
Dropout Voltage
IN
Parameter
= V
O
+ 5V, I
A
Output Voltage (V
J−A
= T
(for devices in still air with no heatsink) is 60˚C/W for the TO-220 package, 80˚C/W for the TO-263 package, and 174˚C/W for the SOT-223 package.
J
= 25˚C are 100% production tested. All limits at temperature extremes are guaranteed via correlation using standard Statistical Quality Control
O
J−A
A
= 1A, C
I
I
(Note 6)
R
LM2940, T
LM2940/883, T
LM2940C, T
R
LM2940, LM2940/883
LM2940C
R
LM2940, T
LM2940/883, T
LM2940C, T
. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown.
O
O
O
O
O
can be reduced by using a heatsink (see Application Hints for specific information on heatsinking). The values of
= 1A
= 100 mA
= 100
= 100
= 100
Conditions
O
= 22 µF, unless otherwise specified. Boldface limits apply over the entire operating tempera-
DS008822-13
O
A
A
)
= T
= T
100 ms
100 ms
J
J
1 ms
1 ms
= 25˚C only (standard typeface) or over the entire operating temperature range of the indicated device (boldface type).
= 25˚C only (standard typeface) or over the entire operating temperature range of the indicated device (boldface type).
20 ms
20 ms
(Continued)
Dropout Voltage
vs Temperature
Typ
110
−30
−30
−75
−55
0.5
1.9
48
75
55
LM2940
(Note 4)
150/200
−15/−15
−50/−50
−45/−45
0.8/1.0
60/60
Limit
−15
1.6
45
12V
6
LM2940/833
(Note 5)
150/200
−15/−15
−45/−45
0.7/1.0
1.6/1.3
A
40/40
Limit
DS008822-14
= T
J
= 25˚C.
J
, the junction-to-ambient thermal resistance,
Typ
110
−30
−55
0.5
1.9
60
55
Output Voltage
vs Temperature
LM2940
(Note 4)
150/200
−45/−45
0.8/1.0
Limit
−15
1.6
45
15V
LM2940/833
J−A
(Note 5)
150/200
−15/−15
−45/−45
0.7/1.0
1.6/1.3
40/40
Limit
and
J−C
DS008822-15
for the K02A
J−A
, and the
1000 Hr
mV
Units
V
A
V
V
V
mV/
MAX
MIN
MIN
MIN
MIN
MAX