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STA501

December 2003

s

MINIMUM INPUT OUTPUT PULSE WIDTH

DISTORTION

s

200m

OUTPUT STAGE

s

CMOS COMPATIBLE LOGIC INPUTS

s

THERMAL PROTECTION

s

THERMAL WARNING OUTPUT

s

UNDER VOLTAGE PROTECTION

DESCRIPTION

STA501 is a monolithic dual half bridge stage in Mul-

tipower BCD Technology.

The device is particularly designed to make the out-

put stage of a mono All-Digital High Efficiency

(DDX™) amplifier capable to deliver 50W @ THD =

pins have threshold proportional to Ibias pin voltage.

PowerSO36

ORDERING NUMBER: STA501

40V 3.5A DOUBLE POWER HALF BRIDGE

AUDIO APPLICATION CIRCUIT

C30

1

µF

C107

100nF

C106

100nF

C55

1000

µF

C58

100nF

C58

100nF

R57

10K

R59

10K

C53

100nF

C60

100nF

C31

1

µF

R104

20

C109

330pF

15

GND

IBIAS

CONFIG

PWRDN

PWRDN

FAULT

TRI-STATE

TH_WAR

TH_WAR

+3.3V

GND

GND-Reg

GND-Clean

INA

INA

INB

PROTECTIONS

&

LOGIC

REGULATORS

29

23

24

25

27

26

28

30

21

22

33

34

35

36

GND

14

12

GND

13

L113 22

µH

L112 22

µH

C32

1

µF

C108

470nF

C33

1

µF

7

M17

M15

M16

M14

8

9

OUTA

GNDA

OUTA

6

4

2

3

OUTB

GNDB

D02AU1447

OUTB

5

N.C.

N.C.

16

17

19

31

20

GNDSUB

1

N.C.

10

N.C.

11

INB

32

C110

100nF

C111

100nF

R103

6

R102

6

MULTIPOWER BCD TECHNOLOGY