LM3525A National Semiconductor Corporation, LM3525A Datasheet - Page 4

• Manufacturer Part Number: LM3525A
• Description: LM3525 - Single Port Usb Power Switch And Over-current Protection, Package: Soic Narrow, Pin Nb=8
• Manufacturer: National Semiconductor Corporation

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t
t
t
t
t
r
f
ON
OFF
OC
Pin Number
Limits in standard typeface are for T
less otherwise specified: V
AC Electrical Characteristics
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Electrical specifications do not apply when operating the device
beyond its rated operating conditions. Products are not tested under negative Absolute Maximum conditions.
Note 2: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
ambient thermal resistance), and T
number given in the Absolute Maximum Ratings, which ever is lower. The thermal resistance
Note 3: The human body model is a 100 pF capacitor discharged through a 1.5 k
Note 4: Thermal shutdown will protect the device from permanent damage.
Note 5: For the LM3525-L, OFF is EN
Pin Description
Typical Application Circuit
Symbol
4, 5
6, 8
1
2
3
7
OUT Rise Time
OUT Fall Time
Turn on Delay, EN to OUT
Turn off Delay, EN to OUT
Over Current Flag Delay
(LM3525-H)
(LM3525-L)
Pin Name
GND
OUT
FLG
EN
EN
NC
IN
Parameter
IN
A
= 5.0V.
(ambient temperature). The maximum allowable power dissipation at any temperature is P
2.4V and ON is EN
Enable (Input): Logic-compatible enable input.
Fault Flag (Output): Active-low, open-drain output. Indicates overcurrent, UVLO and thermal
shutdown.
Ground
Not internally connected.
Supply Input: This pin is the input to the power switch and the supply voltage for the IC.
Switch Output: This pin is the output of the high side switch. Pins 6 & 8 must be tied together.
J
= 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
R
R
R
R
R
L
L
L
L
L
= 10
= 10
= 10
= 10
= 0
0.8V. For the LM3525-H, OFF is EN
Conditions
4
resistor into each pin.
Pin Function
JA
of the LM3525 in the SO-8 package is 150˚C/W.
0.8V and ON is EN
JMAX
(maximum junction temperature),
Min
2.4V
DS101055-3
Typ
200
200
20
20
DMAX
1
= (T
JMAX
Max
− T
JA
A
)/
(junction to
JA
Units
or the
ms
µs
µs
µs
µs