Monolithic temperature andSYMBOLPARAMETERMAX.UNIT
overload protected logic level power
MOSFET in a 5 pin plasticV
envelope, intended as a generalI
purpose switch for automotiveP
systems and other applications.T
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
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
BUK104-50L4.44-V
BUK104-50S5.45-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.
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
BUK104-50LVPS = 5 V-0.20.35mA
V
PSR
Protection reset voltage
5
BUK104-50SVPS = 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.
1 The resistance of the internal transistor which discharges the power MOSFET gate capacitance when overload protection operates.
The external drive circuit should be such that the input voltage does not exceed V
operated. Refer also to figure for latched input characteristics.
2 Applications using a lower value for RIS would require external overvoltage protection.
3 For applications requiring a lower value for RI, an external overload protection strategy is possible using the flag pin to ‘tell’ the control circuit to
The flag pin provides a means toCONDITIONDESCRIPTIONFLAG
detect the presence of the
protection supply and indicate theNORMALNormal operation and adequateLOGIC LOW
state of the overload detectors.protection supply voltage
The flag is the open drain of an
n-MOS transistor and requires anOVER TEMP.Over temperature detectedLOGIC HIGH
external pull-up resistor1. It is
suitable for both 5 V and 10 V logic.
Flag may be used to implement anSHORT CIRCUITOverload condition detectedLOGIC HIGH
external protection strategy2 for
applications which require low input
drive impedance.SUPPLY FAULTInadequate protection supplyLOGIC HIGH
voltage
FLAG CHARACTERISTICS
Tmb = 25 ˚C unless otherwise stated
SYMBOLPARAMETERCONDITIONSMIN.TYP.MAX.UNIT
Flag ‘low’normal operation
V
I
I
V
V
R
FSS
FS
FS
PSF
(CL)FS
F
Flag voltageIF = 1.6 mA-0.150.4V
Flag saturation currentVFS = 10 V-15-mA
Flag ‘high’overload or fault
Flag leakage currentVFS = 10 V--10µA
Protection supply thresholdVFF = 5 V; RF = 3 kΩ;
voltageBUK104-50L2.53.34V
Objective specificationThis data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specificationThis data sheet contains final product specifications.
Limiting values
Limiting values are given in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and
operation of the device at these or at any other conditions above those given in the Characteristics sections of
this specification is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
Philips Electronics N.V. 1996
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the
copyright owner.
The information presented in this document does not form part of any quotation or contract, it is believed to be
accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any
consequence of its use. Publication thereof does not convey nor imply any license under patent or other
industrial or intellectual property rights.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices or systems where malfunction of these
products can be reasonably expected to result in personal injury. Philips customers using or selling these products
for use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting
from such improper use or sale.
January 199314Rev 1.200
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