Table Of Contents - Huawei GDQ54S12B-4A Technical Manual

Dc-dc converter

Table of Contents

GDQ54S12B-4A DC-DC Converter

Technical Manual

Contents

About This Document................................................................................................................ ii

1 Safety Information.................................................................................................................. 1

1.1 General Safety.......................................................................................................................................................................... 1

1.2 Personnel Requirements....................................................................................................................................................... 3

1.3 Electrical Safety........................................................................................................................................................................ 4

2 Product Overview.................................................................................................................... 5

3 Schematic Diagram................................................................................................................. 7

4 Electrical Specifications......................................................................................................... 8

4.1 Absolute maximum ratings..................................................................................................................................................8

4.2 Input............................................................................................................................................................................................. 8

4.3 Output......................................................................................................................................................................................... 9

4.4 Efficiency.................................................................................................................................................................................. 10

4.5 Protection................................................................................................................................................................................ 11

4.6 Dynamic Characteristics..................................................................................................................................................... 12

4.7 Insulation Characteristics................................................................................................................................................... 12

4.8 Other Characteristics........................................................................................................................................................... 13

5 Product Structure Overview............................................................................................... 14

5.1 Dimensions.............................................................................................................................................................................. 14

5.2 Pin Distribution...................................................................................................................................................................... 15

5.3 Pin Application....................................................................................................................................................................... 16

6 Characteristic Curves............................................................................................................ 18

6.1 Efficiency and Power Dissipation Curves...................................................................................................................... 18

6.2 Thermal Considerations...................................................................................................................................................... 18

7 Typical Waveforms................................................................................................................ 20

7.1 Turn-on/Turn-off................................................................................................................................................................... 21

7.2 Output Voltage Dynamic Response............................................................................................................................... 22

7.3 Output Voltage Ripple........................................................................................................................................................ 23

7.4 Output Voltage Rise Time.................................................................................................................................................. 23

8 Input Anti-resonance Method............................................................................................ 24

9 Protection Characteristics................................................................................................... 25

Issue 02 (2021-09-03)