AC Electrical Characteristics
=
Limits in standard typeface are for TJ 25˚C, and limits in boldface type apply over the full operating temperature range. Un-
=
less otherwise specified: VIN 5.0V.
Symbol Parameter
OUT Rise Time
Conditions
Min
Typ
100
5
Max
Units
µs
tr
tf
RL = 10Ω
RL = 10Ω
RL = 10Ω
RL = 10Ω
RL = 0
OUT Fall Time
µs
tON
tOFF
tOC
Turn on Delay, EN to OUT
Turn off Delay, EN to OUT
Over Current Flag Delay
150
5
µs
µs
1
ms
Pin Description
Pin Number
Pin Name
Pin Function
Enable (Input): Logic-compatible enable inputs.
1, 4
ENA, ENB
(LM3526-L)
ENA, ENB
(LM3526-H)
2, 3
FLAG A
FLAG B
Fault Flag (Output): Active-low, open-drain outputs. Indicates overcurrent, UVLO or thermal
*
shutdown. See application section for more information.
6
7
GND
IN
Ground
Supply Input: This pin is the input to the power switch and the supply voltage for the IC.
Switch Output: These pins are the outputs of the high side switch.
8, 5
OUT A
OUT B
Typical Application Circuit
DS101097-3
www.national.com
4
NSC [ National Semiconductor ]
