MBRF1045 [MOTOROLA]
SWITCHMODE⑩ Schottky Power Rectifirers; SWITCHMODE⑩肖特基功率Rectifirers
| 型号： | MBRF1045 |
| 厂家： | 
MOTOROLA |
| 描述： | SWITCHMODE⑩ Schottky Power Rectifirers |
| 文件： | 总6页 (文件大小：106K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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by MBRF1045/D
SEMICONDUCTOR TECHNICAL DATA
The SWITCHMODE Power Rectifier employs the Schottky Barrier principle in
a large area metal–to–silicon power diode. State–of–the–art geometry features
epitaxial construction with oxide passivation and metal overlay contact. Ideally
suited for use as rectifiers in very low–voltage, high–frequency switching power
supplies, free wheeling diodes and polarity protection diodes.
Motorola Preferred Device
SCHOTTKY BARRIER
RECTIFIER
•
•
•
•
•
Highly Stable Oxide Passivated Junction
Very Low Forward Voltage Drop
High Junction Temperature Capability
High dv/dt Capability
Excellent Ability to Withstand Reverse Avalanche Energy
Transients
10 AMPERES
45 VOLTS
•
•
•
•
Guardring for Stress Protection
Epoxy Meets UL94, VO at 1/8″
Electrically Isolated. No Isolation Hardware Required.
(1)
UL Recognized File #E69369
1
2
1
2
Mechanical Characteristics
•
•
•
Case: Epoxy, Molded
Weight: 1.9 grams (approximately)
Finish: All External Surfaces Corrosion Resistant and Terminal
Leads are Readily Solderable
CASE 221E–01
ISOLATED TO–220
•
Lead Temperature for Soldering Purposes: 260°C Max. for 10
Seconds
•
•
Shipped 50 units per plastic tube
Marking: B1045
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
V
45
Volts
RRM
RWM
R
V
Average Rectified Forward Current (Rated V ), T = 135°C
I
F(AV)
10
20
Amps
Amps
R
C
Peak Repetitive Forward Current
I
FRM
(Rated V , Square Wave, 20 kHz), T = 135°C
R
C
Non–repetitive Peak Surge Current
I
150
Amps
FSM
(Surge applied at rated load conditions halfwave, single phase, 60 Hz)
Peak Repetitive Reverse Surge Current (2.0 µs, 1.0 kHz) Figure 6
Operating Junction and Storage Temperature
I
1.0
Amp
°C
RRM
T , T
J
– 65 to +150
10000
stg
Voltage Rate of Change (Rated V )
dv/dt
V/µs
Volts
R
(2)
RMS Isolation Voltage (t = 1 second, R.H. ≤ 30%, T = 25°C)
Per Figure 8
Per Figure 9
Per Figure 10
V
V
V
4500
3500
1500
A
iso1
iso2
iso3
(1)
THERMAL CHARACTERISTICS
Maximum Thermal Resistance, Junction to Case
R
4.0
°C/W
°C
θJC
Lead Temperature for Soldering Purposes: 1/8″ from Case for 5 seconds
T
260
L
(1) UL Recognized mounting method is per Figure 9.
(2) Proper strike and creepage distance must be provided.
SWITCHMODE is a trademark of Motorola, Inc.
Preferred devices are Motorola recommended choices for future use and best overall value.
Rev 1
Motorola, Inc. 1996
ELECTRICAL CHARACTERISTICS
Characteristic
Maximum Instantaneous Forward Voltage (3)
(i = 20 Amp, T = 25°C)
Symbol
Max
Unit
v
Volts
F
0.84
0.72
0.57
F
C
(i = 20 Amp, T = 125°C)
F
F
C
C
(i = 10 Amp, T = 125°C)
Maximum Instantaneous Reverse Current (3)
(Rated DC Voltage, T = 25°C)
i
R
mA
0.1
15
C
(Rated DC Voltage, T = 125°C)
C
(3) Pulse Test: Pulse Width = 300 µs, Duty Cycle ≤ 2.0%
100
70
100
70
T
= 150°C
T
= 150°C
50
50
J
J
30
20
30
20
100°C
100°C
25°C
25°C
10
7
10
7
5
5
3
2
3
2
1
0.7
0.5
1
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
1.2
1.4
0.2
0.4
0.6
0.8
1
1.2
1.4
v , INSTANTANEOUS VOLTAGE (VOLTS)
v , INSTANTANEOUS VOLTAGE (VOLTS)
F
F
Figure 1. Maximum Forward Voltage
Figure 2. Typical Forward Voltage
100
10
1
200
T
= 150°C
J
T
= 125
°
C, V
MAY BE APPLIED
J
RRM
125°C
BETWEEN EACH CYCLE OF SURGE
100
70
100°C
75°C
0.1
0.01
50
25°C
30
20
0.001
0
10
20
30
40
50
1
2
3
5
7
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
Rectifier Device Data
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 5.)
MAXIMUM
TYPICAL
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.
300
200
150
0.05 0.1
0.2
0.5
1
2
5
10
20
50
V
, REVERSE VOLTAGE (VOLTS)
R
Figure 5. 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 6. Test Circuit for dv/dt and Reverse Surge Current
Rectifier Device Data
3
TEST CONDITIONS FOR ISOLATION TESTS*
MOUNTED
FULLY ISOLATED
PACKAGE
MOUNTED
FULLY ISOLATED
MOUNTED
FULLY ISOLATED
PACKAGE
CLIP
CLIP
PACKAGE
0.107
″
MIN
0.107″ MIN
LEADS
LEADS
LEADS
HEATSINK
0.110 MIN
HEATSINK
HEATSINK
″
Figure 7. Clip Mounting Position
for Isolation Test Number 1
Figure 8. Clip Mounting Position
for Isolation Test Number 2
Figure 9. Screw Mounting Position
for Isolation Test Number 3
* Measurement made between leads and heatsink with all leads shorted together.
MOUNTING INFORMATION**
4–40 SCREW
CLIP
PLAIN WASHER
HEATSINK
COMPRESSION WASHER
NUT
HEATSINK
10a. Screw–Mounted
10b. Clip–Mounted
Figure 10. Typical Mounting Techniques
.
Laboratory tests on a limited number of samples indicate, when using the screw and compression washer mounting technique, a screw torque of 6 to 8 in lbs is sufficient to provide
maximum power dissipation capability. The compression washer helps to maintain a constant pressure on the package over time and during large temperature excursions.
.
Destructive laboratory tests show that using a hex head 4–40 screw, without washers, and applying a torque in excess of 20 in lbs will cause the plastic to crack around the mounting
hole, resulting in a loss of isolation capability.
Additional tests on slotted 4–40 screws indicate that the screw slot fails between 15 to 20 in lbs without adversely affecting the package. However, in order to positively ensure
the package integrity of the fully isolated device, Motorola does not recommend exceeding 10 in lbs of mounting torque under any mounting conditions.
.
.
**For more information about mounting power semiconductors see Application Note AN1040.
4
Rectifier Device Data
PACKAGE DIMENSIONS
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
SEATING
PLANE
–T–
–B–
C
INCHES
MILLIMETERS
F
DIM
A
B
C
D
F
G
H
J
MIN
MAX
0.629
0.402
0.189
0.034
0.129
MIN
15.78
10.01
4.60
MAX
15.97
10.21
4.80
S
0.621
0.394
0.181
0.026
0.121
Q
H
U
0.67
0.86
A
K
3.08
3.27
0.100 BSC
2.54 BSC
1
2
3
0.123
0.018
0.500
0.045
0.129
0.025
0.562
0.060
3.13
0.46
3.27
0.64
K
L
12.70
1.14
14.27
1.52
–Y–
N
Q
R
S
0.200 BSC
5.08 BSC
0.126
0.107
0.096
0.259
0.134
0.111
0.104
0.267
3.21
2.72
2.44
6.58
3.40
2.81
2.64
6.78
G
N
J
U
R
STYLE 1:
PIN 1. CATHODE
L
D2 PL
2. N/A
3. ANODE
M
M
0.25 (0.010)
B
Y
CASE 221E–01
ISSUE O
Rectifier Device Data
5
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specificallydisclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
datasheetsand/orspecificationscananddovaryindifferentapplicationsandactualperformancemayvaryovertime. Alloperatingparameters,including“Typicals”
must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of
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ordeathmayoccur. ShouldBuyerpurchaseoruseMotorolaproductsforanysuchunintendedorunauthorizedapplication,BuyershallindemnifyandholdMotorola
and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees
arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
Motorola was negligent regarding the design or manufacture of the part. Motorola and
Opportunity/Affirmative Action Employer.
are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Mfax is a trademark of Motorola, Inc.
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MBRF1045/D
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