LM2724A National Semiconductor, LM2724A Datasheet - Page 5

• Manufacturer Part Number: LM2724A
• Description: High Speed 3A Synchronous MOSFET Driver
• Manufacturer: National Semiconductor

I
t
t
t
t
t
V
V
leak_IN
on_min1
on_min2
on_min3
off_min1
off_min2
Electrical Characteristics
LM2724A
Note 1: Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating ratings are conditions under which the device operates
correctly. The gaurnteed specifications apply only for the listed test conditions. Some performance characteristics may degrade when the part is not operated under
listed conditions.
Note 2: If BOOT voltage exceeds this value, the ESD structure will degrade.
Note 3: Maximum allowable power dissipation is a function of the maximum junction temperature, T
ambient temperature, T
ambient thermal resistance, θ
LM2724A LLP package is 39˚C/W. For a T
Note 4: ESD machine model susceptibility is 200V.
Note 5: If the positive pulse width at IN pin is below this value but above t
value.
Note 6: If the positive pulse width at IN pin is below this value but above t
Note 7: If the positive pulse width at IN pin is below this value, the pulse will be completely ignored. Neither HG or LG will respond to it.
Note 8: If the negative pulse width at IN pin is below this value but above t
Note 9: If the negative pulse width at IN pin is below this value, the pulse will be completely ignored. Neither HG or LG will respond to it.
V
T
IH_IN
IL_IN
A
CC
Symbol
= T
= BOOT = SYNC = 5V, SW = GND = 0V, unless otherwise specified. Typicals and limits appearing in plain type apply for
J
= +25˚C. Limits appearing in boldface type apply over the entire operating temperature range.
(Continued)
IN Pin Leakage Current
Minimum Positive Pulse
Width at IN Pin
(Note 5)
Minimum Positive Pulse
Width at IN Pin for HG to
Respond
(Note 6)
Minimum Positive Pulse
Width at IN Pin for LG to
Respond
(Note 7)
Minimum Negative Pulse
Width at IN Pin for LG to
Respond
(Note 8)
Minimum Negative Pulse
Width at IN Pin for HG to
Respond
(Note 9)
IN High Level Input
Voltage
IN Low Level Input
Voltage
A
. The maximum allowable power dissipation at any ambient temperature is calculated using: P
JA
Parameter
, for LM2724A is 172˚C/W. For a T
JMAX
of 150˚C and T
Condition
IN = 0V, Source Current
IN = 5V, Sink Current
When IN pin goes high from
0V
When IN pin goes low from
5V
A
of 25˚C, the maximum allowable power dissipation is 3.2W.
JMAX
of 150˚C and T
on_min2
on_min3
off_min2
5
, the pulse is internally stretched to t
, then HG stops responding while LG still responds to the pulse.
, then LG stops responding while HG still responds.
A
of 25˚C, the maximum allowable power dissipation is 0.7W. The θ
JMAX
55%
Min
, the junction-to-ambient thermal resistance, θ
on_min1
MAX
Typ
160
45
10
40
5
= (T
, so the HG width will be a constant
JMAX
-T
A
) / θ
25%
Max
10
2
JA
. The junction-to-
www.national.com
JA
, and the
Units
V
JA
µA
ns
CC
, for