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OUT1

VSSP1

VDDP2

DRIVER

HIGH

MGU998

OUT2

BOOT2

TDA8922TH

BOOT1

DRIVER

LOW

RELEASE1

SWITCH1

ENABLE1

CONTROL

AND

HANDSHAKE

PWM

MODULATOR

RFB

RFB

MANAGER

OSCILLATOR

TEMPERATURE SENSOR

CURRENT PROTECTION

STABI

MODE

ROSC

VSSA

Vmode

COSC

INPUT

STAGE

mute

9

8

IN1

−

IN1

+

22

21

20

17

16

15

VSSP2

VSSP1

DRIVER

HIGH

DRIVER

LOW

RELEASE2

SWITCH2

ENABLE2

CONTROL

AND

HANDSHAKE

PWM

MODULATOR

11

SGND1

7

OSC

2

SGND2

SGND

SGND

6

MODE

INPUT

STAGE

mute

5

4

IN2

−

IN2

+

Vin2

Vin1

19

24

VSSD

VSSA

VSSP

0 V

VSSA

−25 V

VDDP

VDDA

+25 V

HW

1

VSSA2

VSSA

12

VSSA1

3

VDDA2

VDDA

10

VDDA1

23

13

18

14

VDDP2

PROT

STABI

VDDP1

SGND

Fig.37 Typical SE application schematic of TDA8922TH.