PHILIPS PowerMOS Transistor BUK219-50Y TOPFET High Side Switch Data Manual
Summary
The BUK219-50Y is a reliable TOPFET high side switch integrated power MOSFET designed for controlling inductive loads such as motors, solenoids, and lamps. This component offers low on-state resistance ($\text{R}_{\text{ON}}$) and comprehensive built-in protection against overcurrent and overtemperature. The accompanying manual serves as an essential technical datasheet, providing detailed electrical characteristics, thermal limitations, and functional blocks necessary for engineers designing robust, high-performance switching circuits.
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Philips Semiconductors Product Specification
Power MOS transistor BUK219-50Y TOPFET high side switch
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 package.
APPLICATIONS SYMBOL PARAMETER MAX. UNIT General controller for driving VBG Continuous off-state supply voltage
lamps, motors, solenoids, heaters. IL Continuous load current
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 - SOT263B-01 PIN CONFIGURATION SYMBOL PIN DESCRIPTION
mb mb
Ground Input
TOPFET
Battery (+ve supply) HSS Status
Load MBL267Front view
Fig. 2. Fig. 3.
tab connected to pin 3
July 2001 Rev 2.000
Page Summary Contents For PHILIPS PowerMOS Transistor BUK219-50Y TOPFET High Side Switch Data Manual
Manual Details
| Brand | Philips |
|---|---|
| Pages | 8 |
| File Size | 39.83 KB |
| Published | July 06, 2026 |
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Frequently Asked Questions
What is the maximum continuous junction temperature for this switch?
The maximum continuous junction temperature ($T_j$) is 150°C.
Is this device suitable for motor or solenoid control?
Yes, it can be used as a general controller for driving lamps, motors, and solenoids.
How is the BUK219-50Y protected against voltage spikes?
It provides built-in protection against ESD (Electrostatic Discharge) on all pins and handles overvoltage/undervoltage conditions.
What does the I_o feature provide for the load?
I_o provides integrated fault detection, including latched overload and short circuit protection.