Philips Semiconductors
Product specification
TOPFET high side switch
SMD version of BUK223-50Y
DESCRIPTION
Monolithic single channel high side
protected power switch in
TOPFET2
technology assembled in
a 5 pin plastic surface mount
package.
BUK224-50Y
QUICK REFERENCE DATA
SYMBOL
I
L
SYMBOL
PARAMETER
Nominal load current (ISO)
PARAMETER
Continuous off-state supply voltage
Continuous load current
Continuous junction temperature
On-state resistance
T
j
= 25藲C
MIN.
12
MAX.
50
25
150
30
UNIT
A
UNIT
V
A
藲C
m鈩?/div>
APPLICATIONS
General controller for driving
lamps, motors, solenoids, heaters.
V
BG
I
L
T
j
R
ON
FEATURES
Vertical power TrenchMOS
Low on-state resistance
CMOS logic compatible
Very low quiescent current
Overtemperature protection
Load current limiting
Latched overload and
short circuit protection
Overvoltage and undervoltage
shutdown with hysteresis
On-state open circuit load
detection
Diagnostic status indication
Voltage clamping for turn off
of inductive loads
ESD protection on all pins
Reverse battery, overvoltage
and transient protection
FUNCTIONAL BLOCK DIAGRAM
BATT
STATUS
POWER
MOSFET
CONTROL &
PROTECTION
CIRCUITS
LOAD
GROUND
RG
INPUT
Fig.1. Elements of the TOPFET HSS with internal ground resistor.
PINNING - SOT426
PIN
1
2
3
4
5
mb
DESCRIPTION
Ground
Input
(connected to mb)
Status
Load
Battery
PIN CONFIGURATION
mb
SYMBOL
I
S
3
1 2
4 5
B
TOPFET
HSS
G
L
Fig. 2.
Fig. 3.
November 2002
1
Rev 2.000
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