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Philips Semiconductors
TOPFET dual high side switch
STATUS CHARACTERISTICS
The status output is an open drain transistor, and requires an external pull-up circuit to indicate a logic high.
Limits are at -40˚C
T
mb
SYMBOL PARAMETER
V
Status clamping voltage
SG
V
Status low voltage
SG(LO)
I
Status leakage current
S
I
Status saturation current
S(SAT)
Application information
R
External pull-up resistor
S
TRUTH TABLE
ABNORMAL CONDITIONS
INPUT
SUPPLY
1
2
UV OV OC SC OT OC SC OT
L
L
0
X
0
L
L
0
X
1
L
H
0
X
1
H
L
0
0
0
H
H
0
0
0
H
X
1
0
X
H
X
0
1
X
H
X
0
0
0
H
L
0
0
0
H
H
0
0
0
H
X
0
0
0
H
L
0
0
0
H
H
0
0
0
KEY TO ABBREVIATIONS
L
logic low
H
logic high
X
don't care
0
condition not present
1
condition present
1 For example with the pull-up resistor short circuited while the status transistor is conducting. This condition should be avoided in order to
prevent possible interference with normal operation of the device.
October 2001
150˚C and typicals at T
CONDITIONS
I
I
I
V
1
V
DETECTED
LOAD 1
LOAD 2
X
X
0
X
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
X
X
0
X
X
0
0
X
0
0
1
X
X
X
X
1
X
0
0
X
1
X
0
0
0
0
1
X
X
X
0
1
0
0
X
0
1
0
0
0
= 25˚C unless otherwise stated. Refer to
mb
= 100 A
S
= 100 A
S
= 250 A
S
= 5 V
SG
T
= 5 V
SG
LOAD
OUTPUT
STATUS
1
2
OFF OFF
H
OFF OFF
L
OFF ON
L
ON OFF
H
ON
ON
H
OFF OFF
H
OFF OFF
H
OFF
X
L
OFF OFF
L
OFF ON
L
OFF
X
L
OFF OFF
L
OFF ON
L
UV undervoltage
OV overvoltage
OC open circuit
SC short circuit
OT overtemperature
6
Product specification
BUK218-50DC
TRUTH TABLE
MIN.
TYP.
5.5
7
-
0.7
-
-
-
-
= 25˚C
-
0.1
mb
5
10
-
47
DESCRIPTION
both off & normal
both off, one/both OC or short to V+
one off & OC, other on & normal
one on & normal, other off & normal
both on & normal
supply undervoltage lockout
supply overvoltage shutdown
one SC shutdown
one SC shutdown, other off & normal
one SC shutdown, other on & normal
one OT shutdown
one OT shutdown, other off & normal
one OT shutdown, other on & normal
.
MAX.
UNIT
8.5
V
0.9
V
1.1
V
10
A
1
A
15
mA
-
k
Rev 2.010
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