BUK125-50L_1| Datasheet

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Philips Semiconductors

Product specification

Logic level TOPFET TO-220 version of BUK136-50L

BUK125-50L

DESCRIPTION
Monolithic logic level protected power MOSFET using TOPFET2 technology assembled in a 5 pin surface mounting plastic package.

QUICK REFERENCE DATA
SYMBOL VDS ID Ptot Tj RDS(ON) SYMBOL VPS PARAMETER Continuous drain source voltage Continuous drain current Total power dissipation Continuous junction temperature Drain-source on-state resistance PARAMETER Protection supply voltage MAX. 50 40 107 150 20 NOM. 5 UNIT V A W C m UNIT V

APPLICATIONS
General purpose switch for automotive systems and other applications.

FEATURES
TrenchMOS output stage with low on-state resistance Separate input pin for higher frequency drive 5 V logic compatible input Separate supply pin for logic and protection circuits with low operating current Overtemperature protection Drain current limiting Short circuit load protection Latched overload trip state reset by the protection pin Diagnostic flag pin indicates protection supply connected, overtemperature condition,overload tripped state, or open circuit load (detected in the off-state) ESD protection on all pins Overvoltage clamping

FUNCTIONAL BLOCK DIAGRAM
PROTECTION SUPPLY DRAIN

FLAG

OC LOAD DETECT

O/V CLAMP

INPUT

POWER RIG MOSFET

LOGIC AND PROTECTION

SOURCE

Fig.1. Elements of the TOPFET.

PINNING - SOT263B-01
PIN 1 2 3 4 5 tab Input Flag Drain Protection supply DESCRIPTION

PIN CONFIGURATION
mb mb

SYMBOL
D TOPFET P F I
P

12345

Source Drain

Front view

MBL267

S

Fig. 2.

Fig. 3.

January 2003

1

Rev 1.010

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BUK125-50L_1 DATASHEET