PHILIPS Logic level TOPFET Buk114-50L S, SMD version of Buk104-50L S Data Manual User Guide
Summary
The BUK114-50L/S is a high-performance logic-level TOPFET power MOSFET switch designed for robust control of demanding loads such as motors, lamps, and heaters. Featuring integrated overload protection, separate protection supply pins, and low on-state resistance, it provides reliable operation across diverse industrial and automotive systems. This product specification manual offers comprehensive technical data, including absolute maximum ratings, limiting values, detailed overvoltage clamping characteristics, and operational guidelines essential for engineers designing robust switching circuits.
Page 1 Text Content
查询BUK114-50L供应商 Philips Semiconductors Product specification
Logic level TOPFET BUK114-50L/S SMD version of BUK104-50L/S
DESCRIPTION QUICK REFERENCE DATA Monolithic temperature and SYMBOL PARAMETER MAX. UNIT overload protected logic level power
MOSFET in a 5 pin surface VDS Continuous drain source voltage
mounting plastic envelope, intended ID Continuous drain current as a general purpose switch for Ptot Total power dissipation automotive systems and other Tj Continuous junction temperature ˚C applications. RDS(ON) Drain-source on-state resistance
VIS = 5 V mΩ
APPLICATIONS VIS = 7 V mΩ General controller for driving SYMBOL PARAMETER NOM. UNIT lamps
motors VPSN Protection supply voltage
solenoids BUK114-50L heaters BUK114-50S
FEATURES FUNCTIONAL BLOCK DIAGRAM Vertical power DMOS output stage PROTECTION SUPPLY DRAIN Low on-state resistance Logic and protection supply from separate pin
Low operating supply current
Overload protection against
over temperature CLAMP
POWER
Overload protection against
INPUT
short circuit load MOSFET
Latched overload protection reset by protection supply Protection circuit condition
LOGIC AND
indicated by flag pin
5 V logic compatible input level PROTECTION
Separate input pin for higher frequency drive ESD protection on input, flag and protection supply pins
Over voltage clamping for turn SOURCE
off of inductive loads Both linear and switching operation are possible Fig.1. Elements of the TOPFET.
PINNING - SOT426 PIN CONFIGURATION SYMBOL PIN DESCRIPTION
input
TOPFET
flag (connected to mb) protection supply
source
Fig. 2. Fig. 3.
mb drain
September 1996 Rev 1.000
Page Summary Contents For PHILIPS Logic level TOPFET Buk114-50L S, SMD version of Buk104-50L S Data Manual User Guide
Manual Details
| Brand | Philips |
|---|---|
| Pages | 13 |
| File Size | 147.36 KB |
| Published | July 04, 2026 |
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Frequently Asked Questions
What is the maximum continuous drain current?
At T ≤ 25 °C, the maximum continuous drain current (Id) is 13 A. At T ≤ 100 °C, it is reduced to 8.5 A.
Can this TOPFET be used for general control circuits?
Yes, it can be used as a general controller for driving lamps and motors with adjustable voltage settings like 5V or 12V.
How does the device protect against overheating?
It features an Over temperature protection circuit that operates at T ≤ 100 °C to protect the switch.
What are the operating conditions for overload protection?
Overload protection is active and can handle internal, external series, input, and short-circuit loads, provided respective resistors are used.