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SN6507 Datasheet(PDF) 29 Page - Texas Instruments

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Part # SN6507
Description  SN6507 Low-Emissions, 36-V Push-Pull Transformer Driver with Duty Cyle Control for Isolated Power Supplies
PDF  44 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN6507 Datasheet(HTML) 29 Page - Texas Instruments

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9.2.4 System Examples
9.2.4.1 Higher Output Voltage Designs
The device can drive push-pull converters that provide doubling output voltages, or bipolar outputs with different
rectifier topologies . Figure 9-7 to Figure 9-9 show some of these topologies together with their respective
open-circuit output voltages.
n
VIN
V
= +n·V
OUT
IN
V
= -n·V
OUT
IN
Figure 9-7. Bridge Rectifier With Center-Tapped
Secondary Enables Bipolar Outputs
n
V
IN
V
OUT = 2n·VIN
Figure 9-8. Bridge Rectifier Without Center-Tapped
Secondary Performs Voltage Doubling
n
VIN
V
OUT = 4n·VIN
Figure 9-9. Half-Wave Rectifier Without Centered Ground and Center-Tapped Secondary Performs
Voltage Doubling Twice, Hence Quadrupling VIN
9.2.4.2 Commercially-Available Transformers
Table 9-3 shows recommended transformer designs for SN6507 that are commercially available. These part
numbers or equivalents are optimized for use with SN6507.
Table 9-3. Recommended Center Tapped Transformers for SN6507
APPLICATIO
N
TURNS
RATIO
(1:N)
V-t
product
Min (Vμs)
ISOLATIO
N (VRMS)
DIMENSION (mm)
(L,W,H)
PART NUMBER 1
24 V→ 15 V
0.73
15
2.5 k
(8.5, 12.87, 5.16)
Wurth 750319696
0.71
30
2.5 k
(10.3, 12.07, 5.97)
Coilcraft TX1-ZB1459-
BE
0.73
25
2.5 k
(11.8, 13.2, 11.1)
Bourns SM91207L-E
0.75
25
3.75 k
(10.3, 13.2, 12.5)
Pulse PAG6356.086NLT
12 V→ 15 V
1.4
22
2.5 k
(10.3, 12.07, 5.97)
Coilcraft TX1-ZB1445-
CE
1.4
22
2.5 k
(8.5, 12.87, 5.16)
Wurth 750319692
1.2
15
2.5 k
(11.8, 13.2, 11.1)
Bourns SM91208L-E
24 V→ 30 V
1.4
30
2.5 k
(10.3, 12.07, 5.97)
Coilcraft TX1-ZC1891-
AE
1.4
30
2.5 k
(8.5, 12.87, 5.16)
Wurth 750319948
12 V→ 30 V
2.6
22
2.5 k
(8.5, 12.87, 5.16)
Wurth 750319949
2.8
22
2.5 k
(10.3, 12.07, 5.97)
Coilcraft TX1-ZC1892-
AE
24 V→ 24 V
1.09
15
2.5 k
(8.5, 12.87, 5.16)
Wurth 750319697
www.ti.com
SN6507
SLLSFM0A – MARCH 2022 – REVISED JUNE 2022
Copyright © 2022 Texas Instruments Incorporated
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Product Folder Links: SN6507



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