STA323WQS13TR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

STA323WQS13TR

2.1-channel high-efficiency digital audio system with QSound QHD®

STMicroelectronics 

STA323WQS

Electrical specifications

Figure 12. Test circuit 2

High Current Dead time for Bridge application = ABS(DTout(A)-DTin(A))+ABS(DTOUT(B)-DTin(B))

+VCC

Duty cycle=A

DTin(A)

INA

DTout(A)

M58

Q1

Q2

M64

OUTA

Rload=4Ω

DTout(B)

OUTB

L67 10µ

Iout=1.5A

L68 10µ

Iout=1.5A

M57

Q3

C69

470nF

C71 470nF

C70

470nF

Q4

M63

Duty cycle=B

DTin(B)

INB

Duty cycle A and B: Fixed to have DC output current of 4A in the direction shown in figure

D06AU1651

4.5

Power supply and control sequencing

Figure 13 shows the recommended power-up and power-down sequencing. The "time zero"

reference point is taken where VCC crosses the under voltage lockout threshold.

Figure 13. Recommended power up and power down sequence

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