3
April 2008 Rev L
  SP619 High Current Power Switch ?2008 EXAR Corporation
FAULT AND RECOVERY TRUTH TABLE*
Enable
Load
Temperature
(TJ)
Previous
State
Switch    Current State/Fault
(Note*)
Low
X
X
X
Open
Off
High
< 800 mA
< 163篊
Off
Closed
Normal
High
< 800 mA
> 163篊
Off
Open
Thermal Cutoff
High
> 800 mA
< 163篊
Off
Open
Overcurrent
High
> 800 mA
> 163篊
Off
Open
Thermal Cutoff,
Overcurrent
High
< 163篊
Overcurrent
Open
Load Condition
High
> 163篊
Overcurrent
Open
Thermal Cutoff,
Overcurrent, Load
Condition
High
< 163篊
Overcurrent
Closed
Normal
High
> 163篊
Overcurrent
Open
Thermal Cutoff
High
< 120篊
Thermal Cutoff    Open
Load Condition
High
> 120篊
Thermal Cutoff    Open
Load Condition,
Thermal Cutoff
High
< 120篊
Thermal Cutoff   Closed
Normal
High
> 120篊
Thermal Cutoff    Open
Thermal Cutoff
occur. In order to recover to the normal state after a Thermal Cutoff fault, the parts junction temper-
PIN ASSIGNMENTS
PIN
NUMBER
PIN
NAME
FUNCTION
1
VIN
Input power supply pin (4.5V to 5.5V)
2
3
A logic high turns on the switch
4
NC
No connect
5
NC
No connect
6
VOUT
Switch output
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