Philips Semiconductors
Product specification
PowerMOS transistor
TOPFET high side switch
DESCRIPTION
Monolithic temperature and
overload protected power switch
based on MOSFET technology in a
5 pin plastic envelope, configured
as a single high side switch.
BUK202-50Y
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
MIN.
9
MAX.
50
20
150
38
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 DMOS switch
Low on-state resistance
5 V logic compatible input
Overtemperature protection -
self resets with hysteresis
Overload protection against
short circuit load with
output current limiting;
latched - reset by input
High supply voltage load
protection
Supply undervoltage lock out
Status indication for overload
protection activated
Diagnostic status indication
of open circuit load
Very low quiescent current
Voltage clamping for turn off of
inductive loads
ESD protection on all pins
Reverse battery and
overvoltage protection
FUNCTIONAL BLOCK DIAGRAM
BATT
STATUS
POWER
INPUT
MOSFET
CONTROL &
PROTECTION
CIRCUITS
LOAD
GROUND
RG
Fig.1. Elements of the TOPFET HSS with internal ground resistor.
PINNING - SOT263
PIN
1
2
3
4
5
tab
DESCRIPTION
Ground
Input
Battery
(+ve supply)
Status
Load
PIN CONFIGURATION
tab
SYMBOL
I
S
1 2345
B
TOPFET
HSS
G
L
leadform
263-01
Fig. 2.
connected to pin 3
Fig. 3.
April 1995
1
Rev 1.100
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