buk218-50dc NXP Semiconductors, buk218-50dc Datasheet - Page 5

• Manufacturer Part Number: buk218-50dc
• Description: Topfet Dual High Side Switch
• Manufacturer: NXP Semiconductors

Philips Semiconductors
UNDERVOLTAGE & OVERVOLTAGE CHARACTERISTICS
Limits are at -40˚C
OVERLOAD PROTECTION CHARACTERISTICS
Independent protection per channel. Refer to
5.5 V
1 Undervoltage sensors causes each channel to switch off and reset.
2 Overvoltage sensors causes each output channel to switch off to protect its load.
3 Above this temperature measurement of these parameters is prevented because OT protection may occur prior to SC protection.
4 Normal operation will be resumed when P
5 Trip time t
6 After cooling below the reset temperature the channel will resume normal operation.
October 2001
TOPFET dual high side switch
SYMBOL PARAMETER
V
V
I
SYMBOL PARAMETER
I
P
T
T
BG(OV)
L(lim)
V
V
DSC
j(TO)
T
BG(UV)
BG(OV)
D(TO)
j(TO)
BG(UV)
BG(OV)
V
BG
d sc
varies with overload dissipation P
Undervoltage
Low supply threshold voltage
Hysteresis
Overvoltage
High supply threshold voltage
Hysteresis
Operating current per channel
Overload protection
Load current limiting
Short circuit load protection
Overload power threshold
Characteristic time
Overtemperature protection
Threshold junction temperature
Hysteresis
35 V, limits are at -40˚C
T
mb
6
150˚C and typicals at T
D
< P
D
D(TO)
T
according to the exponential model formula t
mb
1
and T
2
150˚C and typicals at T
TRUTH TABLE
CONDITIONS
V
CONDITIONS
V
V
V
T
for protection
which determines trip time
j
< T
mb
BG
BL
BG
BG
mb
= V
j(TO)
> V
= 5.5 V
125˚C prior to overload
8 V
= 25˚C. Refer to
.
BG
BG(OV)
; t
5
p
.
= 300 s
4
mb
TRUTH TABLE
= 25˚C unless otherwise stated.
5
3
d sc
T
DSC
.
/ LN[ P
MIN.
MIN.
100
150
0.1
0.4
35
18
15
2
3
-
-
D
/ P
D(TO)
TYP.
TYP.
150
200
170
4.2
0.5
40
30
27
10
BUK218-50DC
1
1
Product specification
].
MAX.
MAX.
200
500
190
5.3
45
42
42
20
1
2
2
Rev 2.010
UNIT
UNIT
mA
˚C
˚C
W
V
V
V
V
A
A
s