Logic level TOPFETBUK114-50L/S
SMD version of BUK104-50L/S
DESCRIPTIONQUICK REFERENCE DATA
Monolithic temperature andSYMBOLPARAMETERMAX.UNIT
overload protected logic level power
MOSFET in a 5 pin surfaceV
mounting plastic envelope, intendedI
as a general purpose switch forP
automotive systems and otherT
applications.R
DS
D
tot
j
DS(ON)
APPLICATIONSV
General controller for drivingSYMBOLPARAMETERNOM.UNIT
lamps
motorsV
solenoidsBUK114-50L5V
PSN
heatersBUK114-50S10V
FEATURESFUNCTIONAL BLOCK DIAGRAM
Vertical power DMOS output
stage
Low on-state resistance
Logic and protection supply
from separate pin
Low operating supply current
Overload protection against
over temperature
Overload protection against
short circuit load
Latched overload protection
reset by protection supply
Protection circuit condition
indicated by flag pin
5 V logic compatible input level
Separate input pin
for higher frequency drive
ESD protection on input, flag
and protection supply pins
Over voltage clamping for turn
off of inductive loads
Both linear and switching
operation are possibleFig.1. Elements of the TOPFET.
PROTECTION SUPPLY
FLAG
INPUT
Continuous drain source voltage50V
Continuous drain current15A
Total power dissipation40W
Continuous junction temperature150˚C
Drain-source on-state resistance
VIS = 5 V125mΩ
= 7 V100mΩ
IS
Protection supply voltage
DRAIN
O/V
CLAMP
LOGIC AND
PROTECTION
POWER
MOSFET
SOURCE
PINNING - SOT426PIN CONFIGURATIONSYMBOL
PINDESCRIPTION
1input
2flag
3(connected to mb)
4protection supply
5source
3
12 45
mb
TOPFET
P
F
I
Fig. 2.Fig. 3.
mbdrain
September 19961Rev 1.000
D
P
S
Philips SemiconductorsProduct specification
Logic level TOPFETBUK114-50L/S
SMD version of BUK104-50L/S
LIMITING VALUES
Limiting values in accordance with the Absolute Maximum Rating System (IEC 134)
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
V
V
V
I
D
I
D
I
DRM
P
T
T
T
DSS
IS
FS
PS
tot
stg
j
sold
Voltages
Continuous off-state drain sourceVIS = 0 V-50V
voltage
1
Continuous input voltage-011V
Continuous flag voltage-011V
Continuous supply voltage-011V
Total power dissipationTmb = 25 ˚C-40W
Storage temperature--55150˚C
Junction temperature
2
continuous-150˚C
Lead temperatureduring soldering-250˚C
OVERLOAD PROTECTION LIMITING VALUES
With the protection supplyAn n-MOS transistor turns onFor internal overload protection to
connected, TOPFET can protectbetween the input and source toremain latched while the control
itself from two types of overload -quickly discharge the powercircuit is high, external series input
over temperature and short circuitMOSFET gate capacitance.resistance must be provided. Refer
load.to INPUT CHARACTERISTICS.
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
VIS =75-V
V
PSP
Protection supply voltage
3
for valid protection
BUK114-50L4.44-V
BUK114-50S5.45-V
V
DDP(T)
V
DDP(P)
P
DSM
Over temperature protectionVPS = V
Protected drain source supply voltage VIS = 10 V; RI ≥ 2 kΩ-50V
V
Short circuit load protectionVPS = V
Protected drain source supply voltage4VIS = 10 V; RI ≥ 2 kΩ-25V
V
Instantaneous overload dissipation-0.8kW
PSN
= 5 V; RI ≥ 1 kΩ-50V
IS
; L ≤ 10 µH
PSN
= 5 V; RI ≥ 1 kΩ-45V
IS
ESD LIMITING VALUE
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
V
C
Electrostatic discharge capacitorHuman body model;-2kV
voltageC = 250 pF; R = 1.5 kΩ
1 Prior to the onset of overvoltage clamping. For voltages above this value, safe operation is limited by the overvoltage clamping energy.
2 A higher Tj is allowed as an overload condition but at the threshold T
3 The minimum supply voltage required for correct operation of the overload protection circuits.
4 The device is able to self-protect against a short circuit load providing the drain-source supply voltage does not exceed V
For further information, refer to OVERLOAD PROTECTION CHARACTERISTICS.
the over temperature trip operates to protect the switch.
j(TO)
DDP(P)
maximum.
September 19962Rev 1.000
Philips SemiconductorsProduct specification
Logic level TOPFETBUK114-50L/S
SMD version of BUK104-50L/S
OVERVOLTAGE CLAMPING LIMITING VALUES
At a drain source voltage above 50 V the power MOSFET is actively turned on to clamp overvoltage transients.
SYMBOLPARAMETERCONDITIONSMIN.MAX.UNIT
I
DRRM
E
DSM
E
DRM
Repetitive peak clamping drain current RIS ≥ 100 Ω
Non-repetitive inductive turn-offIDM = 15 A; RIS ≥ 100 Ω-200mJ
energy
1 The input pin must be connected to the source pin by a specified external resistance to allow the power MOSFET gate source voltage to
2 While the protection supply voltage is connected, during overvoltage clamping it is possible that the overload protection may operate at
3 Shorting the input to source with low resistance inhibits the internal overvoltage protection by preventing the power MOSFET gate source
become sufficiently positive for active clamping. Refer to INPUT CHARACTERISTICS.
energies close to the limiting value. Refer to OVERLOAD PROTECTION CHARACTERISTICS.
voltage becoming positive.
September 19963Rev 1.000
Philips SemiconductorsProduct specification
Logic level TOPFETBUK114-50L/S
SMD version of BUK104-50L/S
OVERLOAD PROTECTION CHARACTERISTICS
With adequate protection supplyProvided there is adequate inputRefer also to OVERLOAD
voltage TOPFET detects when oneseries resistance it switches offPROTECTION LIMITING VALUES
of the overload thresholds isand remains latched off until resetand INPUT CHARACTERISTICS.
exceeded.by the protection supply pin.
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
Short circuit load protection1VPS = V
RI ≥ 2 kΩ
E
t
d sc
DS(TO)
Overload threshold energyVDD = 13 V; VIS = 10 V-150-mJ
Response timeVDD = 13 V; VIS = 10 V-375-µs
IPS,Protection supply currentnormal operation or
I
PSL
protection latched
BUK114-50LVPS = 5 V-0.20.35mA
V
PSR
Protection reset voltage
5
BUK114-50SVPS = 10 V-0.41.0mA
1.52.53.5V
Tj = 150 ˚C1.0--V
V
(CL)PS
Protection clamp voltageIP = 1.35 mA1113-V
REVERSE DIODE CHARACTERISTICS
Tmb = 25 ˚C
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
V
SDS
t
rr
1 The short circuit load protection is able to save the device providing the instantaneous on-state dissipation is less than the limiting value for
2 At the appropriate nominal protection supply voltage for each type. Refer to QUICK REFERENCE DATA.
3 The over temperature protection feature requires a minimum on-state drain source voltage for correct operation. The specified minimum I
4 During overload condition. Refer also to OVERLOAD PROTECTION LIMITING VALUES and CHARACTERISTICS.
5 The supply voltage below which the overload protection circuits will be reset.
6 The reverse diode of this type is not intended for applications requiring fast reverse recovery.