Input characteristics, Open circuit detection characteristics – Philips BUK218-50DC User Manual
Page 4
Philips Semiconductors
Product specification
TOPFET dual high side switch
BUK218-50DC
INPUT CHARACTERISTICS
5.5 V
≤
V
BG
≤
35 V. Limits are at -40˚C
≤
T
mb
≤
150˚C and typicals at T
mb
= 25˚C unless otherwise stated.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
I
I
Input current
V
IG
= 5 V
20
60
160
µ
A
V
IG
Input clamping voltage
I
I
= 200
µ
A
5.5
7
8.5
V
V
IG(ON)
Input turn-on threshold voltage
-
2.1
3
V
V
IG(OFF)
Input turn-off threshold voltage
1.2
1.8
-
V
∆
V
IG
Input turn-on hysteresis
0.15
0.3
0.5
V
I
I(ON)
Input turn-on current
V
IG
= 3 V
-
-
100
µ
A
I
I(OFF)
Input turn-off current
V
IG
= 1.2 V
12
-
-
µ
A
OPEN CIRCUIT DETECTION CHARACTERISTICS
An open circuit load on either channel can be detected in the off-state. Refer to
TRUTH TABLE
.
This feature requires external load pull-up to a positive supply voltage via a suitable resistor.
Limits are at -40˚C
≤
T
mb
≤
150˚C and typical is at T
mb
= 25˚C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Open circuit detection
V
LG(OC)
Load ground threshold voltage
V
BG
≥
9 V
1.5
2.5
3.5
V
I
B(OC)
Supply quiescent current per
V
BG
= V
LG
= 16 V
-
0.8
1.5
mA
OC channel
open circuit detected,
other channel off
-I
L(OC)
Load ground current per
V
LG
= 16 V
-
200
300
µ
A
channel
V
LG
= 3.5 V
-
22
40
µ
A
t
d(OC)
Status delay time
input low to status low
-
65
100
µ
s
Application information
R
ext
External load pull-up resistance V
ext
= 5 V
-
10
-
k
Ω
per channel
October 2001
4
Rev 2.010