SLLSFM1 September   2022 SN6507-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics, SN6507-Q1
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Push-Pull Converter
      2. 8.3.2 Core Magnetization
      3. 8.3.3 Duty Cycle Control
      4.      Programmable Switching Frequency
      5. 8.3.4 Spread Spectrum Clocking
      6. 8.3.5 Slew Rate Control
      7. 8.3.6 Protection Features
        1. 8.3.6.1 Over Voltage Protection (OVP)
        2. 8.3.6.2 Over Current and Short Circuit Protection (OCP)
        3. 8.3.6.3 Under Voltage Lock-Out (UVLO)
        4. 8.3.6.4 Thermal Shut Down (TSD)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up Mode
        1. 8.4.1.1 Soft-Start
      2. 8.4.2 Operation Mode
      3. 8.4.3 Shutdown Mode
      4. 8.4.4 SYNC Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Pin Configuration
        2. 9.2.2.2 LDO Selection
        3. 9.2.2.3 Diode Selection
        4. 9.2.2.4 Capacitor and Inductor Selection
        5. 9.2.2.5 Transformer Selection
          1. 9.2.2.5.1 V-t Product Calculation
          2. 9.2.2.5.2 Turns Ratio Estimate
        6. 9.2.2.6 Low-Emissions Designs
      3. 9.2.3 Application Curves
      4. 9.2.4 System Examples
        1. 9.2.4.1 Higher Output Voltage Designs
        2. 9.2.4.2 Commercially-Available Transformers
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Community Resources
    4. 10.4 Trademarks
  11. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9.2.4.2 Commercially-Available Transformers

Table 9-3 shows recommended transformer designs for SN6507-Q1 that are commercially available. Although SN6507-Q1 is compatible with many commercially-available and custom transformers, these part numbers or equivalents are optimized for use with SN6507-Q1. Transformer equivalents for automotive applications of the parts listed below may be available from their respective magnetics vendors under different part numbers.

Table 9-3 Recommended Center Tapped Transformers for SN6507-Q1
APPLICATIONTURNS RATIO (1:N)V-t product Min (Vμs)ISOLATION (VRMS)DIMENSION (mm) (L,W,H)PART NUMBER 1
24 V→ 15 V0.73152.5 k(8.5, 12.87, 5.16)Wurth 750319696
0.71302.5 k(10.3, 12.07, 5.97)Coilcraft TX1-ZB1459-BE
0.73252.5 k(11.8, 13.2, 11.1)Bourns SM91207L-E
0.75253.75 k(10.3, 13.2, 12.5)Pulse PAG6356.086NLT

0.75

41.2

2.5 k

(11, 13.5, 10.54)

Semitel EP7-817

12 V→ 15 V1.4222.5 k(10.3, 12.07, 5.97)Coilcraft TX1-ZB1445-CE
1.4222.5 k(8.5, 12.87, 5.16)Wurth 750319692
1.2152.5 k(11.8, 13.2, 11.1)Bourns SM91208L-E

1.4

25.8

2.5 k

(11, 13.5, 10.54)

Semitel EP7-815

24 V→ 30 V1.4302.5 k(10.3, 12.07, 5.97)Coilcraft TX1-ZC1891-AE
1.4302.5 k(8.5, 12.87, 5.16)Wurth 750319948

1.43

36.1

2.5 k

(11, 13.5, 10.54)

Semitel EP7-818

12 V→ 30 V2.6222.5 k(8.5, 12.87, 5.16)Wurth 750319949
2.8222.5 k(10.3, 12.07, 5.97)Coilcraft TX1-ZC1892-AE

2.8

25.8

2.5 k

(11, 13.5, 10.54)

Semitel EP7-816

24 V→ 24 V

1.09

15

2.5 k

(8.5, 12.87, 5.16)

Wurth 750319697

24 V→ 12 V

0.55

15

2.5 k(8.5, 12.87, 5.16)Wurth 750319695

0.625

50

3.75 k

(10.3, 13.2, 12.5)Pulse PAG6356.085NLT
24 V→ 5 V

0.27

15

2.5 k(8.5, 12.87, 5.16)Wurth 750319694

0.25

50

3.75 k(10.3, 13.2, 12.5)Pulse PAG6356.082NLT

12 V→ 24 V

2.13

7.5

2.5 k(8.5, 12.87, 5.16)Wurth 750319693
12 V→ 12 V

1.13

7.5

2.5 k(8.5, 12.87, 5.16)Wurth 750319691
12 V→ 5 V

0.5

7.5

2.5 k(8.5, 12.87, 5.16)Wurth 750319690
24 V→ 3.3 V

0.125

50

3.75 k(10.3, 13.2, 12.5)Pulse PAG6356.081NLT
  1. Not all recommended part numbers are validated by Texas Instruments. Refer to the latest transformer specifications to determine compatibility with SN6507-Q1.