Datasheet

4 of 59

V 2.1

11/2/2023

Integrated Class D Amplifier

MA5302MS

9.3

PWM Frequency.....................................................................................................................................34

9.4

Clock Synchronization ..........................................................................................................................35

9.5

Click Noise Elimination .........................................................................................................................36

9.6

Differential Input ...................................................................................................................................37

10

Operational Mode..................................................................................................................38

10.1

Self-oscillation Start-up Condition.......................................................................................................38

11

Protections...........................................................................................................................39

11.1.1

Self-Reset Protection .......................................................................................................................40

11.1.2

Designing Ct......................................................................................................................................40

11.1.3

Shutdown Input ...............................................................................................................................41

11.1.4

Latched Protection...........................................................................................................................42

11.1.5

Interfacing with System Controller .................................................................................................42

11.2

Over Current Protection (OCP) .............................................................................................................43

11.3

Over Temperature Protection (OTP) ....................................................................................................44

11.4

Under Voltage Protection (UVP) ...........................................................................................................44

12

Status Output .......................................................................................................................45

12.1

Fault Output ..........................................................................................................................................45

12.2

CLIP Output ...........................................................................................................................................46

13

Power Supply Design .............................................................................................................47

13.1

Supplying VAA and VSS .........................................................................................................................47

13.2

Supplying VCC and VB...........................................................................................................................47

13.2.1

Choosing Vs Diode............................................................................................................................48

13.2.2

Choosing Bootstrap Diode...............................................................................................................49

13.2.3

Charging VBS Prior to Start................................................................................................................49

13.3

Power Supply Sequence .......................................................................................................................50

14

Package details.....................................................................................................................51

15

Board mounting, part marking, and ordering information .........................................................53