PHILIPS TOPFET High Side Switch BUK220-50Y SMD Version of BUK219-50Y
Summary
This specialized TOPFET high side switch (HSS) is an SMD-packaged protected power component ideal for switching various electrical loads, such as lamps, motors, and solenoids. It offers reliable performance in applications requiring low on-state resistance and robust safety features like overtemperature protection and load current limiting. The included manual provides comprehensive technical details, including absolute maximum ratings, thermal characteristics, and operational parameters necessary for engineers designing high-reliability power control circuits.
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Philips Semiconductors Product Specification
TOPFET high side switch BUK220-50Y SMD version of BUK219-50Y
DESCRIPTION QUICK REFERENCE DATA Monolithic single channel high side SYMBOL PARAMETER MIN. UNIT protected power switch in
TOPFET2 technology assembled in IL Nominal load current (ISO)
a 5 pin plastic surface mount package.
SYMBOL PARAMETER MAX. UNIT
APPLICATIONS
VBG Continuous off-state supply voltage
General controller for driving IL Continuous load current
lamps, motors, solenoids, heaters. Tj Continuous junction temperature ˚C
RON On-state resistance Tj = 25˚C mΩ
FEATURES FUNCTIONAL BLOCK DIAGRAM Vertical power Trench MOS Low on-state resistance CMOS logic compatible
Very low quiescent current Overtemperature protection
STATUS
Load current limiting
POWER
Latched overload and short circuit protection MOSFET
INPUT
Overvoltage and undervoltage
CONTROL &
shutdown with hysteresis On-state open circuit load
PROTECTION
detection Diagnostic status indication
CIRCUITS
Voltage clamping for turn off of inductive loads
ESD protection on all pins LOAD
Reverse battery, overvoltage
GROUND RG
and transient protection
Fig.1. Elements of the TOPFET HSS with internal ground resistor.
PINNING - SOT426 PIN CONFIGURATION SYMBOL PIN DESCRIPTION
Ground Input
TOPFET
(connected to mb) HSS Status Load
Fig. 2. Fig. 3.
mb Battery
July 2001 Rev 2.000
Page Summary Contents For PHILIPS TOPFET High Side Switch BUK220-50Y SMD Version of BUK219-50Y
Manual Details
| Brand | Philips |
|---|---|
| Pages | 8 |
| File Size | 33.87 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What is the recommended maximum junction to mounting base thermal resistance?
The specified value for the Junction to mounting base thermal resistance (th j-mb) is 2.5 K/W.