STA333IS datasheet(14/43 Pages) STMICROELECTRONICS

tên linh kiện	STA333IS

Giải thích chi tiết về linh kiện	100 dB SNR and dynamic range

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14 / 43 page

Electrical specifications

STA333IS

14/43

DocID022855 Rev 3

3.6

Power-off sequence

The power-off sequence shown in Figure 3 below ensures a pop-free turn-off.

Figure 3. Power-off sequence

3.7

Testing

Figure 4. Test circuit

Figure 5. Current deadtime test circuit

Don’t care

No specific VCC and VDD_DIG turn-off sequence is required

VCC

VDD_DIG

XTI

Mute

Bit EAPD

Low current dead time = MAX(DTr,DTf)

OUTxY

Vcc

(3/4)Vcc

(1/2)Vcc

(1/4)Vcc

DTf

DTr

Duty cycle = 50%

INxY

OUTxY

gnd

+Vcc

M58

M57

R 8

V67 =

vdc = Vcc/2

D03AU1458

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

+VCC

Rload=8

OUTB

)

(

)

(

DTout(A)

C71 470nF

C70

470nF

C69

470nF

Iout=4A

M64

INB

M63

D03AU1517

M58

INA

M57

DTin(A)

Duty cycle=A

Duty cycle=B

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

L68 22

L67 22

OUTA

Lout = 1.5 A

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