Document
® MOTOROLA
POWERTAP
II
SWITCHMODE POWER RECTIFIERS
· .. using the Schottky Barrier principle with a platinum barrier metal. These state-of-the-art devices have the following features: • Dual Diode Construction - May Be Paralleled For Higher
Current Output • Guardring For Stress Protection • Low Forward Voltage • 175°C Operating Junction Temperature • Guaranteed Reverse Avalanche
MBR1203SCT MBR1204SCT MBR120SOCT MBR12060CT
SCHOTTKY BARRIER RECTIFIERS
120 AMPERES 35 to 60 VOLTS
POWERTAP
MAXIMUM RATINGS
Rating
Symbol
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage DC Blocking Voltage
MBR12035CT MBR12045CT MBR12050CT MBR12060CT
VRRM
VRWM VR
Average Rectified Forward Current Per Device
(Rated VR) TC = 140°C
Per Leg
IF(AV)
Peak Repetitive Forward Current, Per Leg (Rated VR, Square Wave, 20 kHz), TC = 140°C
IFRM
Nonrepetitive Peak Surge Current (Surge applied at rated load conditions halfwave, single phase, 60 Hz)
IFSM
Peak Repetitive Reverse Current, Per Leg (2.0 /LB, 1.0 kHz) See Figure 6
IRRM
Operating Junction and Storage Temperature
TJ,Tsta
Voltage Rate of Change (Rated VR)
dv/dt
THERMAL CHARACTER.ISTICS PER LEG
I Thermal Resistance, Junction to Case
ELECTRICAL CHARACTERISTICS PER LEG
Rruc
Instantaneous Forward Voltage (1)
(iF = SO Amp, TJ = 125°C) (iF = 120 Amp, TJ = 175°C) (iF = 120 Amp, TJ = 125°C) (iF = 120 Amp, TJ = 25°C)
vF
Instantaneous Reverse Current (1)
(Rated de Voltage, TJ = 125°C) (Rated de Voltage, TJ = 25°C)
(I) Puis. rest: Puis. Width = 300 ,.., Duty Cvcle '" 2.0%.
PowerTap and Switchmode are trademarks of Motorola Inc.
iR
Max 35 45 50 60 120 60 120
800
Unit Volts
Amps Amps Amps
2.0 Amps
-65 to + 175 °c
1000
V//LB
0.85 °CIW
0.590 0.S20 0.S80 0.830
25 0.25
Volts mA
NOTES
a\ DIMENSIONS A AND ARE DATUMS AND
·T· IS A DATUM SURfACE AND SEATING PLANE 2 POSITIONAL TOLERANCE FOAN HOLES
1-+-!cb0.13(Q,005!@lrIA(I,.I)la®\
3 POSITIONAL TOLERANCE FOROANOW HOLES.
141 ~O.25(OOI(H®IT! A<$!s@1
4 DIMENSIONING AND rOlERANCING PER ANSIY14.5.1973
DIM A
,B
C
f G
•H
D R U
v w
y
CASE 3578-01
Terminal Penetration Terminal Torque Mounting Base Torque
0.280 Max. 26-50 lb.-in. 30-40 lb.-in.
3-148
MBR12035CT, MBR12045CT, MBR12050CT, MBR12060CT
FIGURE 1 - TYPICAL FORWARD VOLTAGE PER LEG
200
!Z
~100
aa:: 10
i ~c 50
~ 20
~ 10 ~ 1.0 ~ 5.0
.... 3.0
2.0 o
A TJ - 115°C/ /125°C
./ 25°C
/I
// /
I
1
II
0.2 0.4 0.6 0.8 vF, INSTANTANEOUS FORWARD VOLTAGE
1.0
FIGURE 3 - FORWARD CURRENT DERATING, PER LEG
100
I : Rated Voltage
'" " '"!ff2i 10
a 60
"-
3~! 50
f2 40
i\..
"-
'\
Applied, Square Wave, 50% Duty _ Cycle
I\.
W 30
~~ 20 '\'\ '\~ 10 ' \J?
'\
TJ = 125"C:\.
'\
150°C'\
'\
115°C'\
'\ '\
80 100 120 140 160 180
TC, CASE TEMPERATURE 1°C)
FIGURE 2 - TYPICAL REVERSE CURRENT. PER LEG*
1~ 0TJ0~115~°C~~~~~~~~~~~~~~~~~~
« 10 =.150°C
E. 4.0 -'125°C _
I- 2.0 \--;'-=-=+-+--+-+-+--+-+-+--I
~~ 1. 0*~The~cu~rves~sh~own~ar~e ty~pic3al foLr th~e h~igh~est~vol~tage~de~vice~in~th~~_
-::J 0.4 voltage grouping. Typical reverse current for lower voltage selections-
r-u 0.2 can be estimated from these same curves if VR is sufficfently below_
~~~~-
~
e~x:. 0~.02 1----11--+--+--+--+--+,--_,_:_==*--"F'--+----I
E'O~.:ot:~f-~-~;25j°C ;;~~~~*~!,...-~~~!~!~
0.001 0~----l---:1!:-0-...L--:2!::0-...L--:3!::0-...L-4!::0-...L---:!50
VR, REVERSE VOLTAGE (VOLTS)
~
~ 50
~ 40 ~-
a::
~ 30
FIGURE 4 - POWER DISSIPATION PER LEG
!/
r- Rat~d voltage ~pPli~d I r - Square Wave, Resistive Load
50% Duty CYClf I
~V
~
/.I?
~ "/
3~! 20
TJ = 125°C ~ 115°C
,,6.V
12W
~ 10
~ ~0
~
~~
~
j o" W 20 ~ 40 50 50 10
IF(AV), AVERAGE FORWARD CURRENT (AMPS)
II
FIGURE 5 - TYPICAL CAPACITANCE, PER LEG 5000
3000
500 0.5
........... .......
100 kHz'" f '" 1.0 MHz
f"... .......
.....
........
" ..........
~
1.0 2.0 3.0 5.0 10 20 30 50 VR, REVERSE VOLTAGE (VOLTS)
FIGURE 6 - TEST CIRCUIT FOR REPEmlVE
REVERSE CURRENT - - - -
r2r.0okl1l'm~'
Vee 12 Vdc
n2_V-JoM~--l 2.0/los --I 1_ 100
1.0 kHz
f'OTi""
1.0 Carbon lN5817
3-149
.