ST STA510A User Manual

44-volt, 5.5-amp, quad power half bridge

Features

 Multipower BCD technology

 Minimum input, output pulse width distortion

 150-mΩ R

stage

 CMOS compatible logic inputs

 Thermal protection

 Thermal-warning output

 Undervoltage protection

 Short-circuit protection

Description

STA510A is a monolithic quad half bridge stage in
Multipower BCD Technology. The device can be
used as dual bridge or reconfigured, by
connecting pin CONFIG to V
with double current capability, or as half bridges
(Binary mode) with half current capability.

The device is intended for the output stage of a
stereo all-digital high-efficiency (DDX
which employs a pulse-width modulator driver.

Table 1. Device summary

complementary DMOS output

dsON

, as a single bridge

DD

®

) amplifier

STA510A

PowerSO36
with exposed pad up (EPU)

The STA510A is capable of delivering an output
power of 50 W into 3 Ω x 4 channels with
THD = 10% at V
configuration. It can also deliver 100 W + 100 W
into 6-Ω loads with THD = 10% at V
BTL configuration and 200W into 3 Ω with
THD = 10% at V
BTL configuration.

The input pins have a threshold proportional to
the voltage on pin VL.

= 37 V in single ended

CC

= 36 V in

CC

= 36 V in single paralleled

CC

Order code Operating temp. range Package Packaging

STA510A 0 to 70 °C PowerSO36 EPU Tube

STA510A13TR 0 to 70 °C PowerSO36 EPU Tape and reel

March 2010 Doc ID 11077 Rev 2 1/17

www.st.com

17

Contents STA510A

Contents

1 Audio applications circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Pins description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.2 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 Technical information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Logic interface and decode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Protection circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.3 Power outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.4 Parallel output / high current operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.5 Output filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.6 Applications circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2/17 Doc ID 11077 Rev 2

STA510A Audio applications circuit

1 Audio applications circuit

Figure 1. Audio applications circuit (dual BTL)

+3.3V

THWARN

C58

100nF

R57
10K

100nF

C60

100nF

C58

100nF

R59
10K

C53

IN1A

IN1B

IN2A

IN2B

IN1A

CONFIG

PWRDNPWRDN

FAULT

TRISTATE

THWARN

IN1B

VDD

VDD

VSS

VSS

VCCSIG

VCCSIG

IN2A

GNDREG

GNDCLEAN

IN2B

GNDSUB

VCC1A

15

29

VL

23

24

25

Protection

27

&

logic

26

28

30

21

22

33

Regulators

34

35

36

31

20

19

32

1

M3

M2

M5

M4

M17

M15

M16

M14

C30
1µF

17

OUT1A

16

OUT1A

14

GND1A

12

VCC1B

OUT1B

OUT1B

GND1B

VCC2A

OUT2A

OUT2A

GND2A

VCC2B

OUT2B

OUT2B

GND2B

C32

220nF

C31

220nF

C31

220nF

11

10

13

7

8

9

6

4

3

2

5

L18 22µH

C52

330pF

R63

20

L19 22µH

L113 22µH

C109

330pF

R104

20

L112 22µH

D00AU1148B

C20

100nF

R98

R100

C21

100nF

C110

100nF

R103

R102

C111

100nF

6

6

6

6

C101

100nF

C107

100nF

C106

100nF

C23

470nF

C108

470nF

C99

100nF

+V

CC

C55

1000µF

8Ω

8Ω

Doc ID 11077 Rev 2 3/17

Pins description STA510A

2 Pins description

Figure 2. Pin connection (top view)

VCCSIG

VCCSIG

VSS

VSS

IN2B

IN1B

IN1A

FAULT

TRISTATE

PWRDN

CONFIG

VL

VDD

VDD

Table 2. Pin functions

36

35

34

33

32

31

30

29

28

26

25

23

22

21

20

19

EP, exposed pad up

D01AU1273

1027

11

12

1324

14

15

16

17

18

1

2

3

4

5

6

7

8

9

GNDSUB

OUT2B

OUT2B

VCC2B

GND2B

GND2AIN2A

VCC2A

OUT2A

OUT2ATHWARN

OUT1B

OUT1B

VCC1B

GND1B

GND1A

VCC1A

OUT1A

OUT1AGNDREG

NCGNDCLEAN

Pin Name Description

1 GNDSUB Substrate ground

2, 3 OUT2B Output half bridge 2B

4 VCC2B Positive supply

5 GND2B Negative supply

6 GND2A Negative supply

7 VCC2A Positive supply

8, 9 OUT2A Output half bridge 2A

10, 11 OUT1B Output half bridge 1B

12 VCC1B Positive supply

13 GND1B Negative supply

14 GND1A Negative supply

15 VCC1A Positive supply

16, 17 OUT1A Output half bridge 1A

4/17 Doc ID 11077 Rev 2

STA510A Pins description

Table 2. Pin functions (continued)

Pin Name Description

18 NC No internal connection

19 GNDCLEAN Logical ground

20 GNDREG Ground for regulator V

21, 22 VDD 5-V regulator referred to ground

23 VL Logic reference voltage

Configuration pin:

24 CONFIG

0: normal operation
1: single BTL (mono) mode, join the pins OUT1A to OUT1B and
OUT2A to OUT2B (if IN1A is joined to IN1B and IN2A to IN2B)

Standby (power down):

25 PWRDN

0: low power consumption mode
1: normal operation

High impedance control:

26 TRISTATE

0: all power amplifiers in high-impedance state
1: normal operation

DD

27 FAULT

(1)

0: fault detected (short circuit or thermal)
1: normal operation

Thermal warning advisor:

Fault advisor:

28 THWARN

(1)

0: junction temperature = 130 °C
1: normal operation

29 IN1A Input of half bridge 1A

30 IN1B Input of half bridge 1B

31 IN2A Input of half bridge 2A

32 IN2B Input of half bridge 2B

33, 34 VSS 5-V regulator referred to +V

CC

35, 36 VCCSIG Signal positive supply

- EP Exposed pad up

1. The pin is open collector. To have a high logic value it needs to be pulled up by a resistor.

Doc ID 11077 Rev 2 5/17

Electrical specifications STA510A

3 Electrical specifications

3.1 Absolute maximum ratings

Table 3. Absolute maximum ratings

Symbol Parameter Min Typ Max Unit

V

V

T

P

T

T

CC

max

op

tot

stg

j

DC supply voltage (pins 4,7,12,15) - - 44 V

Maximum voltage on pins 23 to 32 - - 5.5 V

Operating temperature range - - 90 °C

Power dissipation (T

= 70 °C) - - 21 W

case

Storage temperature -40 - 150 °C

Junction operating temperature -40 - 150 °C

3.2 Recommended operating conditions

Table 4. Recommended operating conditions

(*)

Symbol Parameter Min Typ Max Unit

V

CC

V

L

T

amb

(*) performances not guaranteed beyond recommended operating conditions

DC supply voltage 10 - 39.0 V

Input logic reference 2.7 3.3 5.0 V

Ambient temperature 0 - 70 °C

3.3 Thermal data

Table 5. Thermal data

Symbol Parameter Min Typ Max Unit

T

j-case

T

jSD

T

warn

t

hSD

Thermal resistance junction to case (thermal pad) - 1 2.5 °C/W

Thermal shut-down junction temperature - 150 - °C

Thermal warning temperature - 130 - °C

Thermal shut-down hysteresis - 25 - °C

The power dissipated within the device depends primarily on the supply voltage, load
impedance and output modulation level. The PowerSO36 package of the STA510A includes
an exposed pad or slug on the top of the device to provide a direct thermal path from the die
to the heatsink.

6/17 Doc ID 11077 Rev 2