MBR4045WT Datasheet, PDF (1/6 Pages) Motorola, Inc – SWITCHMODE™ Power Rectifier

MBR4045WT
Vishay High Power Products
Schottky Rectifier, 2 x 20 A
Base
common
cathode
2
TO-247AC
1
3
Anode
1
2
Anode
2
Common
cathode
PRODUCT SUMMARY
I_F(AV)
V_R
I_RM
2 x 20 A
45 V
85 mA at 125 °C
FEATURES
• 150 °C T_J operation
• Center tap TO-247 package
• Very low forward voltage drop
• High frequency operation
• High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
• Guard ring for enhanced ruggedness and long term
reliability
• Designed and qualified for industrial level
DESCRIPTION
The MBR4045WT center tap Schottky rectifier has been
optimized for very low forward voltage drop, with moderate
leakage. The proprietary barrier technology allows for
reliable operation up to 150 °C junction temperature. Typical
applications are in switching power supplies, converters,
freewheeling diodes, and reverse battery protection.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
I_F(AV)
I_FRM
Rectangular waveform (per device)
T_C = 125 °C (per leg)
V_RRM
I_FSM
t_p = 5 µs sine
V_F
20 Apk, T_J = 125 °C
T_J
Range
VALUES
40
40
45
1020
0.56
- 55 to 150
UNITS
A
V
A
V
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
V_R
V_RWM
MBR4045WT
45
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Maximum average
forward current
per leg
per device
I_F(AV)
Peak repetitive forward current per leg
I_FRM
Maximum peak one cycle
non-repetitive surge current per leg
I_FSM
See fig. 7
Non-repetitive avalanche energy per leg
E_AS
Repetitive avalanche current per leg
I_AR
TEST CONDITIONS
VALUES
20
T_C = 125 °C, 50 % duty cycle, rectangular waveform
40
Rated V_R, square wave, 20 kHz, T_C = 125 °C
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
V_RRM applied
40
1020
265
T_J = 25 °C, I_AS = 3 A, L = 4.40 mH
20
Current decaying linearly to zero in 1 µs
3
Frequency limited by T_J maximum V_A = 1.5 x V_R typical
UNITS
A
mJ
A
Document Number: 93452
Revision: 21-Aug-08
For technical questions, contact: [e-mail]
www.vishay.com
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