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CS4412A Fiches technique(PDF) 2 Page - Cirrus Logic |
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CS4412A Fiches technique(HTML) 2 Page - Cirrus Logic |
2 / 24 page 2 DS786A2 CS4412A TABLE OF CONTENTS 1. PIN DESCRIPTION ................................................................................................................................. 3 2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 5 RECOMMENDED OPERATING CONDITIONS .................................................................................... 5 ABSOLUTE MAXIMUM RATINGS ........................................................................................................ 5 PWM POWER OUTPUT CHARACTERISTICS ..................................................................................... 6 DC ELECTRICAL CHARACTERISTICS ................................................................................................ 7 DIGITAL INTERFACE SPECIFICATIONS ............................................................................................. 7 DIGITAL I/O PIN CHARACTERISTICS ................................................................................................. 8 3. TYPICAL CONNECTION DIAGRAMS ................................................................................................. 9 4. APPLICATIONS ................................................................................................................................... 13 4.1 Overview ........................................................................................................................................ 13 4.2 Reset and Power-Up ...................................................................................................................... 13 4.2.1 PWM Popguard Transient Control ........................................................................................ 13 4.2.2 Initial Pulse Edge Delay ........................................................................................................ 14 4.2.3 Recommended Power-Up Sequence .................................................................................... 14 4.2.4 Recommended Power-Down Sequence ............................................................................... 14 4.3 Output Mode Configuration ............................................................................................................ 15 4.4 Output Filters ................................................................................................................................. 16 4.4.1 Half-Bridge Output Filter ........................................................................................................ 16 4.4.2 Full-Bridge Output Filter (Stereo or Parallel) ......................................................................... 18 4.5 Device Protection and Error Reporting .......................................................................................... 19 4.5.1 Over-Current Protection ........................................................................................................ 19 4.5.2 Thermal Warning, Thermal Error, and Under-Voltage Error ................................................. 19 5. POWER SUPPLY, GROUNDING, AND PCB LAYOUT ....................................................................... 20 5.1 Power Supply and Grounding ........................................................................................................ 20 5.1.1 Integrated VD Regulator ........................................................................................................ 20 5.2 QFN Thermal Pad .......................................................................................................................... 20 6. PARAMETER DEFINITIONS ................................................................................................................ 21 7. PACKAGE DIMENSIONS .................................................................................................................... 22 8. THERMAL CHARACTERISTICS ......................................................................................................... 23 8.1 Thermal Flag .................................................................................................................................. 23 9. ORDERING INFORMATION ................................................................................................................ 23 10. REVISION HISTORY .......................................................................................................................... 23 LIST OF FIGURES Figure 1.Stereo Full-Bridge Typical Connection Diagram ........................................................................... 9 Figure 2.2.1 Channel Typical Connection Diagram .................................................................................. 10 Figure 3.4 Channel Half-Bridge Typical Connection Diagram .................................................................. 11 Figure 4.Parallel Full-Bridge Typical Connection Diagram .......................................................................12 Figure 5.Output Filter - Half-Bridge ........................................................................................................... 16 Figure 6.Output Filter - Full-Bridge ............................................................................................................ 18 LIST OF TABLES Table 1. I/O Power Rails .............................................................................................................................. 8 Table 2. Typical Ramp Times for Typical VP Voltages .............................................................................. 13 Table 3. Output Mode Configuration Options............................................................................................. 15 Table 4. Low-Pass Filter Components - Half-Bridge.................................................................................. 16 Table 5. DC-Blocking Capacitors Values - Half-Bridge.............................................................................. 17 Table 6. Low-Pass Filter Components - Full-Bridge .................................................................................. 18 Table 7. Over-Current Error Conditions ..................................................................................................... 19 Table 8. Thermal and Under-Voltage Error Conditions.............................................................................. 19 Table 9. Power Supply Configuration and Settings.................................................................................... 20 |
Numéro de pièce similaire - CS4412A_08 |
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Description similaire - CS4412A_08 |
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