750311590 Wurth Electronics Inc, 750311590 Datasheet - Page 15

• Manufacturer Part Number: 750311590
• Description: TRANS FLYBACK LT3748 8UH SMD
• Manufacturer: Wurth Electronics Inc
• Series: WE-FBr
• Type: For DC/DC Convertersr

Specifications of 750311590

• Applications: Flyback Converters
• Intended Chipset: LT3573, LT3574, LT3575, LT3748
• Voltage - Primary: 20 ~ 48V
• Voltage - Auxillary: 10V
• Voltage - Isolation: 1500Vrms
• Frequency: 150kHz
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Footprint: 1.27" x 1.06" (32.3mm x 27.0mm)
• Height Above Board: 0.54" (13.7mm)
• Chipset Manufacturer: Linear Technology
• Inductance: 8µH
• Transformer Type: Isolation and Data Interface (Encapsulated)
• Turns Ratio - Primary:secondary: 2 : 1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• E.t.: -
• Other names: 732-2660-2

WE-TI HV
Radial Leaded Wire Wound Inductor
Size L
* Source: Power Integrations LinkSwitch-TN
11/10
Inductors for non-isolated SMPS
Electrical properties
Order Code
768 772 102
768 772 122
768 772 152
768 772 182
768 772 222
Note
Those kinds of inductors are often used in low cost and component count buck converter solutions.
Using a switching power supply is more efficient than using passive droppers, independent of comparing a
capacitive or resistive solution. A universal input voltage range can be build, too.
Schematic example*
Wide Range
HV DC Input
+
–
(400 V
Inductance
1000
1200
1500
1800
2200
(µH)
DC
D
)
FB
LinkSwitch-TN
BP
S
DCR max.
2.08
2.64
3.00
3.30
4.73
(Ω)
7 7
7 7
7 7
7 7
Characteristics
Radial through-hole inductor
High saturation core material
Unshielded construction
Designed for 400 V
0.50
0.40
0.38
0.35
0.32
(A)
I
R
DC
0.55
0.45
0.40
0.38
0.32
(A)
I
sat
Standard
Layout
Output
DC
–
+
7 7
7 7
7 7
7 7
Dimensions (in mm)
Standard
Applications
Non-isolated buck or buck-boost converter like
Power Integrations LinkSwitch-TN
Constant current LED driver
Utility metering
Filter for power supply
∅ 0,7 ref.
www.we-online.com
7,8 ±0,5
15