LM3544M-L National Semiconductor, LM3544M-L Datasheet - Page 4

• Manufacturer Part Number: LM3544M-L
• Description: IC,Power Control/Management,SOP,16PIN,PLASTIC
• Manufacturer: National Semiconductor

Specifications of LM3544M-L

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

www.national.com
AC Electrical Characteristics
Note 5: Time for OUT
Note 6: Time for OUT
Note 7: Time between EN
Note 8: Time between EN
Note 9: Time between EN
Pin Description
15, 14, 11, 10
Limits are for T
16, 13, 12, 9
Pin Number
Symbol
3, 4, 7, 8
t
t
OFF
ON
t
t
t
F
r
f
2, 6
1, 5
OUT
OUT
Turn-on Delay (Note 7)
Turn-off Delay (Note 8)
Flag Delay (Note 9)
J
= 25˚C and V
x
x
x
x
to rise from 10% to 90% of its enabled steady-state value after EN
to fall from 10% to 90% of its enabled steady-state value after EN
(LM3544-L: EN 1, 2, 3, 4)
LM3544-H: EN 1, 2, 3, 4
Rise Time (Note 5)
Fall Time (Note 6)
x
x
x
rising through V
falling through V
rising through V
Parameter
FLAG 1, 2, 3, 4
OUT 1, 2, 3, 4
Pin Name
GND 1, 2
IN 1, 2
IN
= 5.0V.
IH
IN
IL
(EN
(EN
(EN
x
x
x
falling through V
falling through V
rising through V
C
C
C
C
I
FLAG
L
L
L
L
= 33 µF, I
= 33 µF, I
= 33 µF, I
= 33 µF, I
Supply Inputs: These pins are the inputs to the power switches and the supply
input for the IC. In most applications they are connected together externally
and to a single input voltage supply.
Grounds: Must be connected together and to a common ground.
Switch Outputs: These pins are the outputs of the high side switches.
Enable (Inputs): Active-high (or active-low) logic enable inputs.
Fault Flag (Outputs): Active-low open drain outputs. Indicates over-current,
UVLO or thermal shutdown. See Application Information section for more
details.
= 10 mA
IH
IL
IN
) and OUT
) and OUT
) and FLAG
Conditions
LOAD
LOAD
LOAD
LOAD
4
x
x
= 500 mA
= 500 mA
= 500 mA
= 500 mA
X
rising through 90% of its enabled steady-state voltage.
falling through 10% of its enabled steady-state voltage.
falling through 0.3V when OUT
x
x
(EN
(EN
x
x
) is deasserted.
) is asserted.
Pin Function
Min
X
is connected to GND.
Typ
1.5
0.9
2.9
0.7
7
Max
Units
ms
ms
ms
ms
ms