LM2984T National Semiconductor, LM2984T Datasheet - Page 5

• Manufacturer Part Number: LM2984T
• Description: IC,VOLT REGULATOR,FIXED,+5V,BIPOLAR,ZIP,11PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM2984T

• Rohs Compliant: NO

Computer Monitor/Reset Functions
Reset Rise Time
On/Off Switch Input
Current (Pin 8)
On/Off Switch Input
Threshold Voltage
V
Boldface type refers to limits over the entire operating temperature range, −40˚C
= 25˚C (Note 8)
Electrical Characteristics
Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating
the device beyond its specified operating ratings.
Note 3: Thermal resistance without a heatsink for junction-to-case temperature is 3˚C/W. Thermal resistance case-to-ambient is 40˚C/W.
Note 4: Tested Limits are guaranteed and 100% production tested.
Note 5: Human body model, 100 pF capacitor discharged through a 1500
Note 6: Internal comparators detect when the main regulator output (V
to go high again after a delay set by R
Note 7: This parameter is a measure of how short a pulse can be detected at the µP Monitor Input. This parameter is primarily influenced by the value of C
Application Hints Section.)
Note 8: To ensure constant junction temperature, low duty cycle pulse testing is used.
Block Diagram
IN
V
OUT
= 14V, I
High or V
Parameter
OUT
OUT
= 5 mA, I
Low, and set the Reset Error Flag low. The Reset Error Flag is held low until V
buf
= 5 mA, I
t
and C
R
V
V
rst
ON
ON
t
. (see application section).
= 10k, V
= 2.4V
= 0.4V
stby
= 5 mA, R
(Continued)
rst
= 5V, C
Conditions
t
= 130 k , C
rst
OUT
) changes from the measured output voltage (with V
10 pF
resistor.
5
t
= 0.33 µF, C
OUT
mon
returns to regulation. The Reset Error Flag is then allowed
Typical
T
A
0.60
0.01
1.22
1.22
= 0.47 µF, unless otherwise indicated,
7.5
+125˚C, all other limits are for T
IN
1.00/1.50
0.80/0.80
2.00/2.00
(Note 4)
= 14V) by the specified amount,
25/25
10/10
Limit
DS011252-2
www.national.com
mon
µA
µA
Units
µs
V
V
A
max
min
max
max
max
. (See
= T
J