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
Continuous drain source voltage50V
Continuous drain current50A
Total power dissipation125W
Continuous junction temperature150˚C
Drain-source on-state resistance
= 5 V35mΩ
IS
VIS = 8 V28mΩ
Protection supply voltage
BUK106-50S10V
Vertical power DMOS output
stage
Low on-state resistance
PROTECTION SUPPLY
Logic and protection supply
from separate pin
Low operating supply current
Overload protection against
over temperature
Overload protection against
short circuit load
FLAG
INPUT
O/V
CLAMP
Latched overload protection
reset by protection supply
Protection circuit condition
indicated by flag pin
5 V logic compatible input level
LOGIC AND
PROTECTION
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.
Total power dissipationTmb = 25 ˚C-125W
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 =85-V
V
PSP
Protection supply voltage
3
for valid protection
BUK106-50L4.44-V
BUK106-50S5.45-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-24V
V
Instantaneous overload dissipation-4kW
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
E
t
d sc
DS(TO)
Overload threshold energyVDD = 13 V; VIS = 10 V-550-mJ
Response timeVDD = 13 V; VIS = 10 V-0.4-ms
IPS,Protection supply currentnormal operation or
I
PSL
protection latched
BUK106-50LVPS = 5 V-0.20.35mA
V
PSR
Protection reset voltage
5
BUK106-50SVPS = 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
switch off the input.
minimum when the overload protection has
IS(TO)
February 19935Rev 1.200
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