majorleagueMUR180E, MUR1100E
MUR1100E is a Preferred Device SWITCHMODE™
Power Rectifiers
Ultrafast “E” Series with High Rever Energy Capability
...designed for u in switching power supplies, inverters and as free wheeling diodes, the state–of–the–art devices have the following features:
•10 mjoules Avalanche Energy Guaranteed
•Excellent Protection Against V oltage Transients in Switching Inductive Load Circuits
•Ultrafast 75 Nanocond Recovery Time
•175°C Operating Junction Temperature
•Low Forward V oltage
•Low Leakage Current
•High Temperature Glass Passivated Junction
•Rever V oltage to 1000 V olts
Mechanical Characteristics:
•Ca: Epoxy, Molded
•Weight: 0.4 gram (approximately)
•Finish: All External Surfaces Corrosion Resistant and Terminal Leads are Readily Solderable
•Lead and Mounting Surface Temperature for Soldering Purpos: 220°C Max. for 10 Seconds, 1/16″ from ca
•Shipped in plastic bags, 1000 per bag
•Available Tape and Reeled, 5000 per reel, by adding a “RL’’ suffix to the part number
•Polarity: Cathode Indicated by Polarity Band
•Marking: MUR180E, MUR1100E
MAXIMUM RATINGS
韦伯英语
1.Pul Test: Pul Width = 300 m s, Duty Cycle ≤
2.0%.
Device Package Shipping
ORDERING INFORMATION
MUR180ERL Axial Lead5000/T ape & Reel MUR180E Axial Lead1000 Units/Bag
Preferred devices are recommended choices for future u and best overall value.
MUR1100ERL Axial Lead5000/T ape & Reel MUR1100E Axial Lead1000 Units/Bag
THERMAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
ELECTRICAL CHARACTERISTICS
Figure 1. Typical Forward Voltage
v F, INSTANTANEOUS VOLTAGE (VOLTS)
3.00.01
0.030.020.2
0.120
2.0
0.70.30.050.55.0, I N S T A N T A N E O U S F O R W A R D C U R R E N T (A M P S )
F I F(AV), AVERAGE FORWARD CURRENT (AMPS)1.02.03.0
4.05.0P F (A V )0
T A , AMBIENT TEMPERATURE (°C)
Figure 3. Current Derating (Mounting Method #3 Per Note 1)
Figure 4. Power Dissipation 3.0
1020
2.0
V R , REVERSE VOLTAGE (VOLTS)
Figure 5. Typical Capacitance
0.071.07.0C , C A P A C I T A N C E (p F ), A V E R A G E P O W E R D I S S I P A T I O N (W A T T S )
幼儿英语早教
i 7.05.0
10
BV DUT
I L I D
all怎么读V DD
t0t1t2t Figure 6. Test Circuit Figure 7. Current–Voltage Waveforms
The unclamped inductive switching circuit shown in Figure 6 was ud to demonstrate the controlled avalanche capability of the new “E’’ ries Ultrafast rectifiers. A mercury switch was ud instead of an electronic switch to simulate a noisy environment when the switch was being opened.
When S1 is clod at t0 the current in the inductor I L ramps up linearly; and energy is stored in the coil. At t1 the switch is opened and the voltage across the diode under test begins to ri rapidly, due to di/dt effects, when this induced voltage reaches the breakdown voltage of the diode, it is clamped at BV DUT and the diode begins to conduct the full load current which now starts to decay linearly through the diode, and goes to zero at t2.
By solving the loop equation at the point in time when S1 is opened; and calculating the energy that is transferred to the diode it can be shown that the total energy transferred is equal to the energy sto
red in the inductor plus a finite amount of energy from the V DD power supply while the diode is in breakdown (from t1 to t2) minus any loss due to finite component resistances. Assuming the component resistive elements are small Equation (1) approximates the total energy transferred to the diode. It can be en from this equation that if the V DD voltage is low compared to the breakdown voltage of the device, the amount of energy contributed by the supply during breakdown is small and the total energy can be assumed to be nearly equal to the energy stored in the coil during the time when S1 was clod, Equation (2).
The oscilloscope picture in Figure 8, shows the information obtained for the MUR8100E (similar die construction as the MUR1100E Series) in this test circuit conducting a peak current of one ampere at a breakdown voltage of 1300 volts, and using Equation (2) the energy absorbed by the MUR8100E is approximately 20 mjoules. Although it is not recommended to design for this condition, the new “E’’ ries provides added protection against tho unforeen transient virus that can produce unexplained random failures in unfriendly environments.
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Figure 8. Current–Voltage Waveforms
CHANNEL 2:
I L
0.5 AMPS/DIV.
CHANNEL 1:
V DUT
500 VOLTS/DIV.
TIME BASE:
20 m s/DIV.
EQUATION (1): EQUATION (2):
NOTE 3. — AMBIENT MOUNTING DATA
