MBR2035CT [KERSEMI]
SWITCHMODE POWER RECTIFIERS; ????开关模式电源整流器
| 型号： | MBR2035CT |
| 厂家： | 
Kersemi Electronic Co., Ltd. |
| 描述： | SWITCHMODE POWER RECTIFIERS |
| 文件： | 总5页 (文件大小：476K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
. . . using the Schottky Barrier principle with a platinum barrier metal. These
state–of–the–art devices have the following features:
•
•
•
•
•
Guardring for Stress Protection
Low Forward Voltage
150°C Operating Junction Temperature
Guaranteed Reverse Avalanche
Epoxy Meets UL94, VO at 1/8″
MBR2045CT is a
Motorola Preferred Device
SCHOTTKY BARRIER
RECTIFIERS
20 AMPERES
Mechanical Characteristics:
35 and 45 VOLTS
•
•
•
Case: Epoxy, Molded
Weight: 1.9 grams (approximately)
Finish: All External Surfaces Corrosion Resistant and Terminal Leads are
Readily Solderable
Lead Temperature for Soldering Purposes: 260°C Max. for 10 Seconds
4
•
•
•
Shipped 50 units per plastic tube
Marking: B2035, B2045
1
3
2, 4
1
2
3
CASE 221A–06
TO–220AB
PLASTIC
Rating
Symbol
MBR2035CT
MBR2045CT
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
V
35
45
Volts
RRM
RWM
R
V
Average Rectified Forward Current (Rated V )
I
20
20
20
20
Amps
Amps
Amps
Amp
R
F(AV)
T
C
= 135°C
Peak Repetitive Forward Current Per Diode Leg
I
FRM
(Rated V , Square Wave, 20 kHz) T = 135°C
R
C
Nonrepetitive Peak Surge Current
(Surge applied at rated load conditions halfwave, single phase, 60 Hz)
I
150
1.0
150
1.0
FSM
RRM
Peak Repetitive Reverse Surge Current
(2.0 µs, 1.0 kHz) See Figure 11
I
Operating Junction Temperature
Storage Temperature
T
65 to +150
65 to +175
1000
65 to +150
65 to +175
1000
°C
°C
J
T
stg
Voltage Rate of Change (Rated V )
dv/dt
V/µs
R
THERMAL CHARACTERISTICS
Maximum Thermal Resistance, Junction to Case
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage (1)
R
2.0
2.0
°C/W
θJC
v
Volts
F
(i = 10 Amps, T = 125°C)
0.57
0.72
0.84
0.57
0.72
0.84
F
F
C
C
C
(i = 20 Amps, T = 125°C)
(i = 20 Amps, T = 25°C)
F
Maximum Instantaneous Reverse Current (1)
(Rated dc Voltage, T = 125°C)
i
R
mA
15
0.1
15
0.1
C
(Rated dc Voltage, T = 25°C)
C
100
100
T
= 150°C
J
T
= 150°C
J
70
50
70
50
100°C
25°C
100°C
25°C
30
20
30
20
10
7.0
5.0
10
7.0
5.0
3.0
2.0
3.0
2.0
1.0
1.0
0.7
0.5
0.7
0.5
0.3
0.2
0.3
0.2
0.1
0.1
0.2
0.4
0.6
0.8
1.0
1.2
1.4
0.2
0.4
0.6
0.8
1.0
1.2
1.4
v , INSTANTANEOUS VOLTAGE (VOLTS)
v , INSTANTANEOUS VOLTAGE (VOLTS)
F
F
Figure 1. Maximum Forward Voltage
Figure 2. Typical Forward Voltage
200
100
T
= 150°C
J
125°C
10
100
70
100
°
C
1.0
75°C
0.1
50
25°C
0.01
30
20
0.001
0
5.0
10
15
20
25
30
35
40
45
50
1.0
2.0 3.0
5.0 7.0 10
20
30
50 70 100
V
, REVERSE VOLTAGE (VOLTS)
NUMBER OF CYCLES AT 60 Hz
R
Figure 3. Maximum Reverse Current
Figure 4. Maximum Surge Capability
2
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32
28
24
20
16
12
8.0
40
35
30
25
20
15
10
RATED VOLTAGE APPLIED
RATED VOLTAGE APPLIED
I
I
I
I
PK
AV
PK
AV
(RESISTIVE LOAD)
(RESISTIVE LOAD)
I
I
SQUARE
WAVE
SQUARE
WAVE
PK
AV
(CAPACITIVE LOAD)
5
10
20
dc
dc
I
I
PK
AV
4.0
0
(CAPACITIVE LOAD)
20, 10, 5
80
5.0
0
110
120
130
140
150
160
0
20
40
60
100
120
C)
140
160
T
, CASE TEMPERATURE (
°C)
T , AMBIENT TEMPERATURE (
°
C
A
Figure 5. Current Derating, Infinite Heatsink
Figure 6. Current Derating, R
= 16°C/W
JA
10
8.0
6.0
4.0
20
18
dc
RATED VOLTAGE APPLIED
= 60 C/W
SQUARE
WAVE
R
°
JA
SINE WAVE
RESISTIVE LOAD
16
I
I
PK
AV
(RESISTIVE LOAD)
I
14
PK
(CAPACITIVE LOAD)
5
I
12
AV
SQUARE
WAVE
10
20
10
8.0
6.0
4.0
dc
T
= 150
24
°C
2.0
0
J
I
I
PK
AV
60
(CAPACITIVE LOAD)
20, 10, 5
80
2.0
0
0
4.0
I
8.0
12
16
20
28
32
0
20
40
100
120
C)
140
160
, AVERAGE FORWARD CURRENT (AMPS)
F(AV)
T , AMBIENT TEMPERATURE (°
A
Figure 7. Forward Power Dissipation
Figure 8. Current Derating, Free Air
1.0
0.7
0.5
0.3
0.2
P
P
pk
pk
DUTY CYCLE, D = t /t
PEAK POWER, P , is peak of an
pk
p 1
t
p
0.1
0.07
0.05
TIME
equivalent square power pulse.
[D + (1 – D) • r(t + t ) + r(t ) – r(t )] where:
JL
t
1
•
∆
∆
T
T
= P
R
JL
JL
pk
θ
1
p
p
1
= the increase in junction temperature above the lead temperature.
r(t) = normalized value of transient thermal resistance at time, t, i.e.:
r(t + t ) = normalized value of transient thermal resistance at time,
0.03
0.02
1
p
t
+ t , etc.
1
p
0.01
0.01
0.1
1.0
10
100
1000
t, TIME (ms)
Figure 9. Thermal Response
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3
1500
1000
HIGH FREQUENCY OPERATION
Since current flow in a Schottky rectifier is the result of majority
carrier conduction, it is not subject to junction diode forward and
reverse recovery transients due to minority carrier injection and
stored charge. Satisfactory circuit analysis work may be performed
by using a model consisting of an ideal diode in parallel with a
variable capacitance. (See Figure 10.)
700
500
Rectification efficiency measurements show that operation will
be satisfactory up to several megahertz. For example, relative
waveform rectification efficiency is approximately 70 percent at
2.0 MHz, e.g., the ratio of dc power to RMS power in the load is
0.28 at this frequency, whereas perfect rectification would yield
0.406 for sine wave inputs. However, in contrast to ordinary
junction diodes, the loss in waveform efficiency is not indicative of
power loss; it is simply a result of reverse current flow through the
diode capacitance, which lowers the dc output voltage.
MAXIMUM
300
TYPICAL
5.0
200
150
0.05 0.1
0.2
0.5 1.0
2.0
10
20
50
V
, REVERSE VOLTAGE (VOLTS)
R
Figure 10. Capacitance
+150 V, 10 mAdc
2.0 k
Ω
V
12 Vdc
CC
+
D.U.T.
12 V
100
4.0 µF
2N2222
2.0
µs
1.0 kHz
CURRENT
AMPLITUDE
ADJUST
2N6277
100
CARBON
0–10 AMPS
1.0 CARBON
1N5817
Figure 11. Test Circuit for dv/dt and
Reverse Surge Current
4
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NOTES:
SEATING
PLANE
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
–T–
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION Z DEFINES A ZONE WHERE ALL
BODY AND LEAD IRREGULARITIES ARE
ALLOWED.
C
B
F
T
S
4
INCHES
MIN
MILLIMETERS
DIM
A
B
C
D
F
G
H
J
K
L
N
Q
R
S
MAX
0.620
0.405
0.190
0.035
0.147
0.105
0.155
0.025
0.562
0.060
0.210
0.120
0.110
0.055
0.255
0.050
–––
MIN
14.48
9.66
4.07
0.64
3.61
2.42
2.80
0.46
12.70
1.15
4.83
2.54
2.04
1.15
5.97
0.00
1.15
–––
MAX
15.75
10.28
4.82
0.88
3.73
2.66
3.93
0.64
14.27
1.52
5.33
3.04
2.79
1.39
6.47
1.27
–––
A
K
Q
Z
0.570
0.380
0.160
0.025
0.142
0.095
0.110
0.018
0.500
0.045
0.190
0.100
0.080
0.045
0.235
0.000
0.045
–––
1
2
3
U
H
L
R
V
J
G
T
U
V
D
N
Z
0.080
2.04
CASE 221A–06
(TO–220AB)
ISSUE Y
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5
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