750311303 Wurth Electronics Inc, 750311303 Datasheet - Page 14
![TRANS FLYBACK LT3575 50UH SMD](/photos/15/55/155510/750311303_sml.jpg)
750311303
Manufacturer Part Number
750311303
Description
TRANS FLYBACK LT3575 50UH SMD
Manufacturer
Wurth Electronics Inc
Series
WE-FBr
Type
For DC/DC Convertersr
Specifications of 750311303
Applications
Flyback Converters
Intended Chipset
LT3573, LT3574, LT3575, LT3748
Voltage - Primary
9 ~ 30V
Voltage - Auxillary
10V @ 20mA
Voltage - Isolation
1500Vrms
Frequency
100kHz
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Footprint
0.60" x 0.53" (15.2mm x 13.3mm)
Height Above Board
0.45" (11.4mm)
Chipset Manufacturer
Linear Technology
Inductance
50µH
Transformer Type
Isolation and Data Interface (Encapsulated)
Turns Ratio - Primary:secondary
5 : 1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
E.t.
-
Other names
732-2625-2
14
WE-PD2 HV
High Voltage SMD Power Inductor
Size 7850 / Size 1054
Electrical properties: Size 7850
Order Code
768 775 30
768 775 312
768 775 322
I
I
Electrical properties: Size 1054
Order Code
768 776 30
768 776 312
768 776 322
I
I
Note
With effect 7th January 2010 the so-called standby regulation came into force within the European Union. Reducing the power consumption until 2020 by 75% in the standby mode is the aim of this
regulation. Due to that regulation electrical home appliance, communication and office equipment aren’t allowed to spend more than 2 Watt in the standby mode. For devices which are simply
reactivated only 1 Watt is allowed. From 2014 on the values will reduce further on.
For those standby applications SMPS are needed that are compact and efficient but don’t exceed the requested consumption either. The high voltage version of the power inductors WE-PD2 is
especially designed for such applications. A special layout combined with a complex test setup guarantees the requested withstand voltage of the rectified supply voltage of 400 V
R
sat
R
sat
www.we-online.com
referring to 40 K self-heating above ambient temperature
referring to 40 K self-heating above ambient temperature
referring to inductance loss of 10% typ.
referring to inductance loss of 10% typ.
Inductance
Inductance
1000
1200
2200
1000
1200
2200
(µH)
(µH)
Inductors for non-isolated SMPS
DCR typ.
DCR typ.
(400 V
2.78
3.77
6.00
2.20
2.48
4.40
(Ω)
(Ω)
DC
)
DCR max.
DCR max.
7 7
7 7
7 7
7 7
Land pattern (in mm)
Land pattern (in mm)
(Ω)
(Ω)
3.3
4.5
7.2
2.6
3.0
5.3
Characteristics
Unshielded construction
Designed for 400 V
Recommended solder profile: Reflow
Operating temperature: –40 °C to +125 °C
0.30
0.28
0.15
0.38
0.35
0.18
(A)
(A)
I
I
R
R
DC
9,5 ref.
7,5 ref.
0.30
0.28
0.20
0.38
0.35
0.26
(A)
(A)
I
I
sat
sat
Qty.
500
Qty.
500
7 7
7 7
7 7
7 7
Dimensions (in mm)
Dimensions (in mm)
Applications
Non-isolated buck or buck-boost converter like
Power Integrations LinkSwitch-TN
Constant current LED driver
Utility metering
Filter for power supply
10,0 ±0,4
7,8 ±0,3
3 ref.
3,5 ref.
DC
.
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