Philips Semiconductors
TOPFET high side switch
SMD version of BUK209-50Y
DESCRIPTION
Monolithic single channel high side
protected power switch in
TOPFET2 technology assembled in
a 5 pin plastic surface mount
package.
APPLICATIONS
General controller for driving
lamps, motors, solenoids, heaters.
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
PINNING - SOT426
PIN
DESCRIPTION
1
Ground
2
Input
3
(connected to mb)
4
Status
5
Load
mb
Battery
September 2002
QUICK REFERENCE DATA
SYMBOL
PARAMETER
I
Nominal load current (ISO)
L
SYMBOL
PARAMETER
V
Continuous off-state supply voltage
BG
I
Continuous load current
L
T
Continuous junction temperature
j
R
On-state resistance
ON
FUNCTIONAL BLOCK DIAGRAM
STATUS
INPUT
CONTROL &
PROTECTION
GROUND
Fig.1. Elements of the TOPFET HSS with internal ground resistor.
PIN CONFIGURATION
mb
3
1 2
4 5
Fig. 2.
1
T
= 25˚C
j
CIRCUITS
RG
SYMBOL
I
S
Product specification
BUK214-50Y
MIN.
UNIT
6
A
MAX.
UNIT
50
V
12
A
150
˚C
60
mΩ
BATT
POWER
MOSFET
LOAD
B
TOPFET
L
HSS
G
Fig. 3.
Rev 2.000