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BUK218-50DC Datasheet, PDF (6/9 Pages) NXP Semiconductors – TOPFET dual high side switch
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Philips Semiconductors
TOPFET dual high side switch
Product specification
BUK218-50DC
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 ≤ Tmb ≤ 150˚C and typicals at Tmb = 25˚C unless otherwise stated. Refer to TRUTH TABLE.
SYMBOL PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
VSG
VSG(LO)
IS
Status clamping voltage
Status low voltage
Status leakage current
IS = 100 µA
IS = 100 µA
IS = 250 µA
VSG = 5 V
5.5
7
8.5
V
-
0.7 0.9 V
-
-
1.1 V
-
-
10 µA
Tmb = 25˚C
-
0.1
1
µA
IS(SAT)
RS
Status saturation current1
Application information
External pull-up resistor
VSG = 5 V
5
10 15 mA
-
47
-
kΩ
TRUTH TABLE
INPUT
12
LL
LL
LH
HL
HH
HX
HX
HX
HL
HH
HX
HL
HH
ABNORMAL CONDITIONS
DETECTED
LOAD
OUTPUT
SUPPLY LOAD 1
LOAD 2
UV OV OC SC OT OC SC OT 1 2
0 X 0 X X 0 X X OFF OFF
0 X 1 X X X X X OFF OFF
0 X 1 X X 0 0 0 OFF ON
0 0 0 0 0 0 0 0 ON OFF
0 0 0 0 0 0 0 0 ON ON
1 0 X X X 0 X X OFF OFF
0 1 X 0 0 X 0 0 OFF OFF
0 0 0 1 X X X X OFF X
0 0 0 1 X 0 0 X OFF OFF
0 0 0 1 X 0 0 0 OFF ON
0 0 0 0 1 X X X OFF X
0 0 0 0 1 0 0 X OFF OFF
0 0 0 0 1 0 0 0 OFF ON
STATUS
H
L
L
H
H
H
H
L
L
L
L
L
L
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
KEY TO ABBREVIATIONS
L logic low
H logic high
X don’t care
0 condition not present
1 condition present
UV undervoltage
OV overvoltage
OC open circuit
SC short circuit
OT overtemperature
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
6
Rev 2.010
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