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SI8238 数据表(PDF) 3 Page - Silicon Laboratories

部件名 SI8238
功能描述  0.5 AND 4.0 AMP ISODRIVERS
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制造商  SILABS [Silicon Laboratories]
网页  http://www.silabs.com
标志 SILABS - Silicon Laboratories

SI8238 数据表(HTML) 3 Page - Silicon Laboratories

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Si823x
Rev. 1.7
3
TABLE OF C ONTENTS
Section
Page
1. Top-Level Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1. Test Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3.1. Typical Operating Characteristics (0.5 Amp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2. Typical Operating Characteristics (4.0 Amp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3. Family Overview and Logic Operation During Startup . . . . . . . . . . . . . . . . . . . . . . . 21
3.4. Power Supply Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.5. Power Dissipation Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.6. Layout Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.7. Undervoltage Lockout Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.8. Programmable Dead Time and Overlap Protection . . . . . . . . . . . . . . . . . . . . . . . . . 28
4. Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.1. High-Side/Low-Side Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2. Dual Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
4.3. Dual Driver with Thermally Enhanced Package (Si8236) . . . . . . . . . . . . . . . . . . . . . 31
5. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7. Package Outline: 16-Pin Wide Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
8. Land Pattern: 16-Pin Wide Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9. Package Outline: 16-Pin Narrow Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
10. Land Pattern: 16-Pin Narrow Body SOIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
11. Package Outline: 14 LD LGA (5 x 5 mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
12. Land Pattern: 14 LD LGA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
13. Package Outline: 14 LD LGA with Thermal Pad (5 x 5 mm) . . . . . . . . . . . . . . . . . . . . . 50
14. Land Pattern: 14 LD LGA with Thermal Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
15. Top Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.1. Si823x Top Marking (16-Pin Wide Body SOIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
15.2. Top Marking Explanation (16-Pin Wide Body SOIC) . . . . . . . . . . . . . . . . . . . . . . . 52
15.3. Si823x Top Marking (16-Pin Narrow Body SOIC) . . . . . . . . . . . . . . . . . . . . . . . . . . 53
15.4. Top Marking Explanation (16-Pin Narrow Body SOIC) . . . . . . . . . . . . . . . . . . . . . . 53
15.5. Si823x Top Marking (14 LD LGA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
15.6. Top Marking Explanation (14 LD LGA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57


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