LMD18400 Datasheet, PDF (6/18 Pages) National Semiconductor (TI) – Quad High Side Driver

Functional Block Diagram
Truth Table
Enable
Input
(Pin 3)
Chip Select
Input
(Pin 4)
0
X
1
X
1
X
1
X
1
X
1
X
1
1
1
0
Switch Control
Input
(Pins 9 10 11 12)
X
0
1
0
1
1
X
X
Error
Output
(Pin 13)
1
1
1
0
0
0
X
X
Thermal SD
Output
(Pin 17)
0
1
1
1
1
0
X
X
TL H 11026 – 8
Conditions
‘‘Sleep’’ Mode I_Supply ^k 10 mA
Selected Switch is OFF
Selected Switch is ON Normal Operation
Switch is OFF but
a Load is Open Circuited or
b Load is Shorted to V_CC or
c T_J ^l a145 C or
d V_CC ^l a35V
Switch is ON but
a Load is Shorted to Ground or
b Switch is in Power Limit or
c T_J ^l a145 C or
d V_CC ^l a35V and Switch is Actually OFF
T_J ^l a170 C All Switches are OFF
Data Output Pin is TRI-STATE
Data Output Pin is Enabled and Ready to
Output Diagnostic Information
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