STK415-140-E_技术文档

Ordering number : EN*A1501

Thick-Film Hybrid IC

2-Channel Power Switching

Audio Power IC, 120W+120W

STK415-140-E

Overview

The STK415-140-E is a class H audio power amplifier hybrid IC that features a built-in power supply switching circuit.

This IC provides high efficiency audio power amplification by controlling (switching) the supply voltage supplied to the

power devices according to the detected level of the input audio signal.

Applications

• Audio power amplifiers.

Features

• Pin-to-pin compatible outputs ranging from 80W to 180W.

• Can be used to replace the STK416-100 series (3-channel models) and the class-AB series (2, 3-channel models) due to

its pin compatibility.

• Pure complementary construction by new Darlington power transistors

• Output load impedance: R = 8Ω to 4Ω supported

L

• Using insulated metal substrate that features superlative heat dissipation characteristics that are among the highest in the

industry.

Series Models

STK415-090-E

STK415-100-E

STK415-120-E

STK415-130-E

STK415-140-E

Output 1 (10%/1kHz)

80W×2 channels

90W×2 channels

120W×2 channels

150W×2 channels

180W×2 channels

Output 2 (0.8%/20Hz to 20kHz)

50W×2 channels

60W×2 channels

80W×2 channels

100W×2 channels

120W×2 channels

Max. rated V (quiescent)

H

60V

41V

37V

27V

65V

42V

39V

29V

73V

80V

46V

51V

34V

80V

51V

52V

32V

Max. rated V (quiescent)

L

45V

Recommended operating V (8Ω)

46V

32V

H

Recommended operating V (8Ω)

L

Dimensions (excluding pin height)

64.0mm×31.1mm×9.0mm

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be

intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace

instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety

equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case

of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee

thereof. If you should intend to use our products for applications outside the standard applications of our

customer who is considering such use and/or outside the scope of our intended standard applications, please

consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our

customer shall be solely responsible for the use.

Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate

the performance, characteristics, and functions of the described products in the independent state, and are not

guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent

device, the customer should always evaluate and test devices mounted in the customer

'

s products or

equipment.

70809HKIM No. A1501-1/12

STK415-140-E

Specifications

Absolute maximum ratings at Ta=25°C (excluding rated temperature items), Tc=25°C unless otherwise specified

Parameter

Symbol

max (1)

max (2)

max (3)

max (1)

max (2)

max (3)

Conditions

Ratings

Unit

V

maximum quiescent supply voltage 1

maximum supply voltage 2

maximum supply voltage 3

maximum quiescent supply voltage 1

maximum supply voltage 2

maximum supply voltage 3

V

When no signal

80

78

60

51

48

36

60

V

H

L

H

L

R ≥6Ω

V

L

R ≥4Ω

V

L

When no signal

V

R ≥6Ω

V

L

R ≥4Ω

V

L

Maximum voltage between V

V

*4

-V max

L

No loading

V

H and

L

H

Standby pin maximum voltage

Thermal resistance

Vst max

θj-c

-0.3 to +5.5

1.5

V

Per power transistor

°C/W

°C

Junction temperature

Tj max

Tc max

Tstg

Both the Tj max and Tc max conditions must be met.

150

IC substrate operating temperature

Storage temperature

125

-30 to +125

Allowable load shorted time

*3

ts

V

P

= 52V, V = 32V, R =6Ω, f=50Hz,

L L

=120W, 1-channel active

H

O

0.3

s

Electrical Characteristics at Tc=25°C, R =8Ω (non-inductive load), Rg=600Ω, VG=40dB, VZ=15V

L

Conditions *1

Ratings

Parameter

Symbol

unit

W

V

f

P

THD

(%)

O

min

typ

max

(V)

(Hz)

(W)

Output power

P

(1)

(2)

V

H

52

32

O

20 to 20k

0.8

120

V

L

P

V

42

28

O

H

1k

R =4Ω

120

0.4

L

V

L

Total harmonic distortion

Frequency characteristics

Input impedance

THD

V

52

32

H

20 to 20k

120

1.0

%

Hz

V

L

f , f

V

52

32

L

H

+0 -3dB

20 to 50k

55

V

L

ri

V

52

32

H

1k

kΩ

V

L

Output noise voltage

Quiescent current

*2

V

58

38

NO

H

Rg=2.2kΩ

1.0

mVrms

mA

mV

V

L

I

V

58

38

30

CCO

H

R =∞

L

V

100

L

Output neutral voltage

V

58

38

N

H

-70

2.5

0

+70

0.6

V

L

Pin 17 voltage when

standby ON

VST ON

V

52

32

H

Standby

*7

V

L

Pin 17 voltage when

standby OFF

VST OFF

V

52

32

H

Operating

3.0

V

L

[Remarks]

*1: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out.

*2: The output noise voltage values shown are peak values read with a VTVM. However, an AC stabilized (50Hz)

power supply should be used to minimize the influence of AC primary side flicker noise on the reading.

*3: Use the designated transformer power supply circuit shown in the figure below for the measurements of allowable

load shorted time and output noise voltage.

*4: Design circuits so that (|V |-|V |) is always less than 40V when switching the power supply with the load connected.

H L

*5: Set up the V power supply with an offset voltage at power supply switching (V -V ) of about 8V as an initial target.

L

O

*6: Please connect –Pre V

pin (#5 pin) with the stable minimum voltage and connect so that current does not flow in

CC

by reverse bias.

*7: Use the standby pin (pin 17) so that the applied voltage never exceeds the maximum rating.

The power amplifier is turned on by applying +2.5V to +5.5V to the standby pin (pin 17).

*8: Thermal design must be implemented based on the conditions under which the customer’s end products are

expected to operate on the market.

*9: A thermoplastic adhesive resin is used for this hybrid IC.

No. A1501-2/12

STK415-140-E

DBA40C

10000μF

+V

-V

H

L

+

500Ω

+

-V

H

L

10000μF

Designated transformer power supply

(MG-250 equivalent)

Designated transformer power supply

(MG-200 equivalent)

Package Dimensions

unit:mm (typ)

64.0

55.6

9.0

(R1.8)

1

19

3.6

0.4

2.9

2.0

18 2.0=36.0

0.5

(9.8)

5.5

Internal Equivalent Circuit

7

12

Comparator

Pre Driver

CH2

Pre Driver

CH1

3

1

15

16

2

4

Stand-by

Comparator

5

6

SUB

13

14

17

18

9

19

8 10

11

No. A1501-3/12

STK415-140-E

Application Circuit Example

STK415-100 series

+OFF -OFF

SET SET

OUT OUT OUT OUT

Ch1+ Ch1-Ch2+ Ch2-

IN

NF ST NF

IN

+V -V

-Pre -V +V

H H

+Pre SUB GND

Ch1 Ch1 BY Ch2 Ch2

L

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19

R30

C22

C23

Stand-by

R24

R26

R18

R19

C08

D03 D04

R14

C13

R15

C14

C07

C17

R22

Ch2-IN

GND

R06

R05

C20

C19

+V

Ch1-IN

H

R03

C05

R21

C16

C01

D01

+V

L

L02

R01

C03

C04

GND

Ch2-OUT

GND

C11

R09

R12

R02

C06

-V

L

D02

C02

R04

L01

R11

R08

C10

-V

H

Ch1-OUT

No. A1501-4/12

STK415-140-E

Recommended Values for Application Parts (for the test circuit)

Recommended

Larger than Recommended

Smaller than

Recommended Value

Power switching circuit

activates at higher

Symbol

Description

Value

R01, R02

1.5kΩ

Determine the current flowing into the power switching

Power holding circuit

remains active at lower

frequencies.

circuit (comparator), (3mA to 10mA at V power

H

switching)

frequencies.

R03, R04

R05, R06

100Ω/1W

56kΩ

Ripple filtering resistors

Decreased pass-through

current at high frequencies.

VN offset

Increased pass-through

current at high frequencies.

(Used with C05 and C06 to form a ripple filter.)

Input bias resistors

(Virtually determine the input impedance.)

Oscillation prevention resistor

(Ensure R05=R18, R06=R19 when changing.)

R08, R09

R11, R12

R14,R15

4.7Ω/1W

4.7Ω

-

Oscillation prevention resistor

560Ω

Used with R18 and R19 to determine the voltage gain

VG. (VG should desirably be determined by the R14

and R15 value.)

Likely to oscillate

(VG<40dB)

None

R18, R19

56kΩ

1kΩ

Used with R14 and R15 to determine the voltage gain

VG.

-

R21, R22

R24, R26

Input filtering resistor

-

0.22Ω 10%,

5W

Output emitter resistors

Decrease in maximum

output power

Likely to cause thermal-

runaway.

(Use of cement resistor is desirable)

R30

Remarks *7

Use a limiting resistor according to the voltage applied to the standby pin so that it remains within the rating.

C01, C02

100μF/

Oscillation prevention capacitors.

100V

• Insert the capacitors as close to the IC as possible to

decrease the power impedance for reliable IC

operation (use of electrolytic capacitors are

desirable).

-

C03, C04

C05, C06

100μF/

Oscillation prevention capacitors.

• Insert the capacitors as close to the IC as possible to

decrease the power impedance for reliable IC

operation (use of electrolytic capacitors are

desirable).

50V

100μF/

Decoupling capacitors.

Increase in ripple components that pass into the input side

from the power line.

100V

Eliminate ripple components that pass into the input

side from the power line.

(Used with R03 and R04 to form a ripple filter.)

Oscillation prevention capacitor

C07, C08

C10, C11

3pF

Likely to oscillate

0.1μF

Oscillation prevention capacitor

(Mylar capacitors are recommended.)

NF capacitor

C13, C14

22μF/

Increase in low-frequency

voltage gain, with higher

pop noise at power-on.

Decrease in low-frequency

voltage gain

10V

(Changes the low cutoff frequency;

ex/f =1/2π •C13•R14)

L

C16, C17

C19, C20

2.2μF/

50V

Input coupling capacitor (block DC current)

-

470pF

Input filter capacitor

(Used with R21 and R22 to form a filter that suppresses

high-frequency noises.)

-

C22, C23

D01, D02

100pF

18V

Oscillation prevention capacitor

Likely to oscillate.

Determine the offset voltage at V ↔V power.

Decreased distortion at

power switching time

Increased distortion at

power switching time.

L

H

D03, D04

L01, L02

3A/60V

Reverse current prevention diodes

(FRD is recommended.)

-

3μH

Oscillation prevention inductance

None

Likely to oscillate.

No. A1501-5/12

STK415-140-E

Sample PCB Trace Pattern

STK415-100-E-Sr/STK416-100-E-Sr PCB PARTS LIST

Parts List

STK415, 416-100Sr PCB Parts List

STK415 (416)

PCB No.

PARTS

RATING

-090-E, -100-E,

-120-E, 130-E

STK415-140-E

R01, R02

R03, R04

-

ERX1SJ***

1.5kΩ, 1W

enabled

100Ω, 1W

ERG1SJ101

R05, R06, (R07), R18,

R19, (R20)

56kΩ, 1/6W

RN16S563FK

enabled

R08, R09, (R10)

enabled

4.7Ω, 1W

4.7Ω, 1/4W

-

ERX1SJ4R7

RN14S4R7FK

RN16S***FK

RN16S102FK

BPR56CFR22J

-

R11, R12, (R13)

R14, R15, (R16)

R21, R22, (R23)

R25, R27, (R29)

R24, R26, (R28)

R35, R36, R37

C01, C02, C05, C06

C03, C04

560Ω, 1/6W

enabled

1kΩ, 1/6W

0.22Ω 10%, 5W

-

Short

enabled

Short

enabled

100μF, 100V

100μF, 50V

3pF

100MV100HC

50MV100HC

DD104-63B3ROK50

ECQ-V1H104JZ

10MV220HC

50MV2R2HC

DD104-63B471K50

DD104-63B101K50

-

C07, C08, (C09)

C10, C11, (C12)

C13, C14, (C15)

C16, C17, (C18)

C19, C20, (C21)

C22, C23, (C24)

D01, D02

0.1μF, 100V

22μF, 10V

2.2μF, 50V

470pF

100pF

-

GZA15X (SANYO)

enabled

GZA18X (SANYO)

enabled

D03, D04

IF (AV)=3A/60V

3μH

L01, L02, (L03)

enabled

Stand-By

R30

R32

R33

R34

C25

D05

TR1

3.3kΩ,1/6W

1kΩ,1/6W

33kΩ,1/6W

2kΩ,1/6W

47μF,10V

RN16S332FK

RN16S102FK

RN16S333FK

RN16S202FK

10MV47HC

GMB01 (Ref.)

2SC2274 (Ref.)

20mm

enabled

-

enabled

-

J01

enabled

Jumper

J02, J03, J06

J04, J05

enabled

10mm

enabled

7mm

(*1) STK416-100Sr (3ch AMP) doesn’t mount parts of ( ).

No. A1501-6/12

STK415-140-E

Pin Assignments

[STK433-000/-100/-200 Sr & STK415/416-100 Sr Pin Layout]

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15

2ch class-AB

2ch classAB/2.00mm

STK433-030-E 30W/JEITA

STK433-040-E 40W/JEITA

STK433-060-E 50W/JEITA

STK433-070-E 60W/JEITA

-

+

V

C

O

U

T

/

O

U

T

/

O

U

T

/

O

U

T

/

+

P

R

E

I

N

F

/

S

T

A

N

D

|

N

F

/

I

P

R

E

V

C

S

U

B

•

G

N

D

N

/

N

/

C

H

1

C

H

1

C

H

2

C

H

2

C

H

1

C

H

1

-

C

H

2

C

H

2

-

G

N

D

STK433-090-E 80W/JEITA

STK433-100-E 100W/JEITA

STK433-120-E 120W/JEITA

STK433-130-E 150W/JEITA

B

Y

+

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19

3ch class-AB

3ch classAB/2.00mm

STK433-230A-E 30W/JEITA

STK433-240A-E 40W/JEITA

STK433-260A-E 50W/JEITA

STK433-270-E 60W/JEITA

STK433-290-E 80W/JEITA

STK433-300-E 100W/JEITA

STK433-320-E 120W/JEITA

STK433-330-E 150W/JEITA

-

+

V

C

O

U

T

/

O

U

T

/

O

U

T

/

O

U

T

/

+

P

R

E

I

N

F

/

S

T

A

N

D

|

N

F

/

I

N

F

/

O

U

T

/

O

U

T

/

P

R

E

V

C

S

U

B

•

G

N

D

N

/

N

/

N

/

C

H

1

C

H

1

C

H

2

C

H

2

C

H

3

C

H

3

C

H

1

C

H

1

-

C

H

2

C

H

2

-

C

H

3

C

H

3

-

G

N

D

B

Y

+

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19

2ch classH/2.00mm

2ch class-H

STK415-090-E 80W/JEITA

STK415-100-E 90W/JEITA

STK415-120-E 120W/JEITA

STK415-130-E 150W/JEITA

STK415-140-E 180W/JEITA

+

V

L

-

+

O

F

S

E

T

-

+

V

H

O

U

T

/

O

U

T

/

O

U

T

/

O

U

T

/

+

P

R

E

I

N

F

/

S

T

A

N

D

|

N

F

/

I

V

L

O

F

S

E

T

P

R

E

V

H

S

U

B

•

G

N

D

N

/

N

/

C

H

1

C

H

1

C

H

2

C

H

2

C

H

1

C

H

1

-

C

H

2

C

H

2

-

G

N

D

B

Y

+

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16 17 18 19 20 21 22 23

3ch classH/2.00mm

3ch class-H

STK416-090-E 80W/JEITA

STK416-100-E 90W/JEITA

STK416-120-E 120W/JEITA

STK416-130-E 150W/JEITA

+

V

L

-

+

O

F

S

E

T

-

+

V

H

O

U

T

/

O

U

T

/

O

U

T

/

O

U

T

/

+

P

R

E

I

N

F

/

S

T

A

N

D

|

N

F

/

I

N

F

/

O

U

T

/

O

U

T

/

V

L

O

F

S

E

T

P

R

E

V

H

S

U

B

•

G

N

D

N

/

N

/

N

/

C

H

1

C

H

1

C

H

2

C

H

2

C

H

3

C

H

3

C

H

1

C

H

1

-

C

H

2

C

H

2

-

C

H

3

C

H

3

-

G

N

D

B

Y

+

No. A1501-7/12

STK415-140-E

Evaluation Board Characteristics

THD - P

Pd - P

O

300

250

200

150

100

7

V = 52V

H

5

3

2

V = 32V

L

VG=40dB

f=1kHz

10

7

5

Rg=600Ω

Tc=25°C

3

2

1.0

R =6Ω

L

7

5

2ch Drive

3

2

V = 52V

0.1

H

7

V = 32V

5

3

2

100

L

VG=40dB

Rg=600Ω

Tc=25°C

0.01

7

50

0

5

3

2

R =6Ω

L

2ch Drive

0.001

0.1

2

3

5 7

2

3

5 7

2

3

5 7

2

3

5 7

2

3

5 7

2

3

5 7

10

2

3

5 7

100

2

3

5 7

1000

1.0

10

100

1000

0.1

1.0

Output power, P /ch - W

ITF02704

ITF02705

P

- V^O

L

P

O

- V^O

H

O

300

250

200

150

100

300

250

200

150

100

V = 32V

L

VG=40dB

Rg=600Ω

V = 52V

H

VG=40dB

Rg=600Ω

R =6Ω

L

2ch Drive

50

0

50

0

10

20

30

40

50

30

40

50

60

70

Supply voltage, V

-

V

Supply voltage, V - V

H

ITF02706

ITF02707

L

P

- f

O

300

250

200

150

100

V = 52V

H

V = 32V

L

VG=40dB

Rg=600Ω

Tc=25°C

THD=10%

THD=0.8%

R =6Ω

L

2ch Drive

50

0

2

3

5 7

2

3

5 7

2

3

5 7

2

3

5 7

100k

10

100

1k

10k

Frequency, f - Hz

ITF02708

No. A1501-8/12

STK415-140-E

[Thermal Design Example for STK415-140-E (R = 8Ω)]

L

The thermal resistance, θc-a, of the heat sink for total power dissipation, Pd, within the hybrid IC is determined as

follows.

Condition 1: The hybrid IC substrate temperature, Tc, must not exceed 125°C.

Pd × θc-a + Ta < 125°C ................................................................................................. (1)

Ta: Guaranteed ambient temperature for the end product

Condition 2: The junction temperature, Tj, of each power transistor must not exceed 150°C.

Pd × θc-a + Pd/N × θj-c + Ta < 150°C .......................................................................... (2)

N: Number of power transistors

θj-c: Thermal resistance per power transistor

However, the power dissipation, Pd, for the power transistors shall be allocated equally among the number of power

transistors.

The following inequalities result from solving equations (1) and (2) for θc-a.

θc-a < (125 − Ta)/Pd ...................................................................................................... (1)'

θc-a < (150 − Ta)/Pd − θj-c/N ........................................................................................ (2)'

Values that satisfy these two inequalities at the same time represent the required heat sink thermal resistance.

When the following specifications have been stipulated, the required heat sink thermal resistance can be determined

from formulas (1)' and (2)'.

• Supply voltage

• Load resistance

V , V

R

L

H L

• Guaranteed ambient temperature

Ta

[Example]

When the IC supply voltage, V = 52V, V = 32V and R is 6Ω, the total power dissipation, Pd, within the hybrid

H

L

IC, will be a maximum of 156W at 1kHz for a continuous sine wave signal according to the Pd-P characteristics.

O

For the music signals normally handled by audio amplifiers, a value of 1/8P max is generally used for Pd as an

O

estimate of the power dissipation based on the type of continuous signal. (Note that the factor used may differ

depending on the safety standard used.)

This is:

Pd ≈ 63.0W

(when 1/8P max. = 15W, P max. = 120W).

O O

The number of power transistors in audio amplifier block of these hybrid ICs, N, is 4, and the thermal resistance per

transistor, θj-c, is 1.5°C/W. Therefore, the required heat sink thermal resistance for a guaranteed ambient temperature,

Ta, of 50°C will be as follows.

From formula (1)'

θc-a < (125 − 50)/63.0

< 1.19

From formula (2)'

θc-a < (150 − 50)/63.0 − 1.5/4

< 1.21

Therefore, the value of 1.19°C/W, which satisfies both of these formulae, is the required thermal resistance of the heat

sink.

Note that this thermal design example assumes the use of a constant-voltage power supply, and is therefore not a

verified design for any particular user’s end product.

No. A1501-9/12

STK415-140-E

STK415-100 Series Stand-by control, Mute control, Load-short protection & DC

offset protection application

*1 Set the limiting resistor value R1 so that the voltage applied to the standby

pin (pin 17) never exceeds the maximum rated value VST max.

4.7kΩ

STK415-100 series

#17pin

reference voltage VST

+OFF -OFF

OUT OUT OUT OUT

Ch1+ Ch1- Ch2+ Ch2-

NF

Ch2

IN

NF

Ch1 Ch1

IN

Ch2

ST-

BY

-V

+V

-Pre -V

+V

SUB

+Pre GND

SET

L

H

1

2

3

4

6

7

8

9 10 11 12 13 14 15 16 17 18 19

5

1kΩ

6.8kΩ

33kΩ

Stand-by Control

H: Operation Mode (+5V)

L: Stand-by Mode (0V)

(*1) R30

ex) 3.3kΩ

47μF

/10V

2kΩ

GND

*3 *3

6.8kΩ

Ch2 IN

*2

10kΩ

GND

10kΩ

2.2kΩ

Ch1 IN

22kΩ

1kΩ

*2

56kΩ

Latch up

circuit

+V

H

Load

Short

Protection

circuit

0.1μF

10kΩ

+V

L

V1

Mute Control

H: Single Mute

L: Normal

(*4)

R2

Ch2 OUT

GND

100kΩ

-V

L

GND

82kΩ

+5V

Stand-by

Control

-V

H

100

kΩ

22μF

82kΩ

+5V

Mute

Control

Ch1 OUT

DC offset protection

MUTE

PLAY

ST-BY

MUTE

ST-BY

*2 METAL PLATE CEMENT RESISTOR 0.22Ω 10%(5W)

*3 DIODE 3A/60V

STK415-100 Series Application explanation

Stand-by Circuit

in Pre Driver IC

SW transistor

4.7kΩ (*3)

STK415-100 series

ΔV

BE

1) Stand-by control circuit part

H: Operation mode (+5V)

L: Stand-by mode (0V)

Ch1

Ch2

Ch1

Ch2

IN

-PRE -V

+V

+PRE

12

GND

NF STBY

OUT(+) OUT(-) OUT(+) OUT(-)

SUB

13

IN

NF

H

1

4

5

6

7

8

10

11

14

15

16

17

18

19

9

1kΩ

6.8kΩ

56kΩ

33kΩ

56kΩ

(*1) R30

ex) 3.3kΩ

Tr5

Stand-By Control

Voltage VST

I1

2kΩ

47μF

Tr1

Tr2

Point.B

Point.C

I2

Point.C

22kΩ

56kΩ

Operate mode (VST

)≥ 2.5V

)< 0.6V (0V typ)

OFF

Stand-By mode (VST

ON

(2) Load short

detection part

I3

Tr4

(*4) R2

1kΩ

0.1μF

10kΩ

Tr3

(3) Latch-up

circuit part

100kΩ

-V

CC

Tr5

82kΩ

Tr6

OUT Ch1

OUT Ch2

22μF

82kΩ 22μF

100

kΩ

(4) DC offset

protection

No. A1501-10/12

STK415-140-E

The protection circuit application for the STK415-100sr consists of the following blocks (blocks (1) to (4)).

(1) Standby control circuit block

(2) Load short-circuit detection block

(3) Latch-up circuit block

(4) DC voltage protection block

1) Standby control circuit block

Concerning pin 17 reference voltage VST

<1> Operation mode

The switching transistor of the predriver IC turns on when the pin 17 reference voltage, VST, becomes greater

than or equal to 2.5V, placing the amplifier into the operation mode.

Example: When VST (min.) = 2.5V

I1 is approximately equal to 0.40mA since VST = (*2) × IST + 0.6V → 2.5V = 4.7kΩ × IST + 0.6V.

<2> Standby mode

The switching transistor of the predriver IC turns off when the pin 17 reference voltage, VST, becomes lower

than or equal to 0.6V (typ. 0V), placing the amplifier into the standby mode.

Example: When VST = 0.6V

I1 is approximately equal to 0mA since VST = (*2) × IST + 0.6V → 0.6V = 4.7kΩ × IST + 0.6V.

(*1) Limiting resistor

Determine the value of R1 so that the voltage VST applied to the standby pin (pin 17) falls within the rating

(+2.5V to 5.5V (typ. 3.0V)).

(*2) The standby control voltage must be supplied from the host including microcontrollers.

(*3) A 4.7kΩ limiting resistor is also incorporated inside the hybrid IC (at pin 17).

2) Load short-circuit detection block

Since the voltage between point B and point C is less than 0.6V in normal operation mode (V

TR2) is not activated, the load short-circuit detection block does not operate.

< 0.6V) and TR1 (or

BE

When a load short-circuit occurs, however, the voltage between point B and point C becomes larger than 0.6V,

causing TR1 (or TR2) to turn on (V

> 0.6V), and current I2 to flows.

BE

3) Latch-up circuit block

TR3 is activated when I2 is supplied to the latch-up circuit.

When TR3 turns on and current I3 starts flowing, VST goes down to 0V (standby mode), protecting the power

amplifier.

Since TR3 and TR4 configure a thyristor, once TR3 is activated, the IC is held in the standby mode.

To release the standby mode and reactivate the power amplifier, it is necessary to set the standby control voltage (*2)

temporarily low (0V). Subsequently, when the standby control is returned to high, the power amplifier will become

active again.

(*4) The I3 value varies depending on the supply voltage. Determine the value of R2 using the formula below, so that

I1 is equal to or less than I3.

I1 ≤ I3 = V /R2

CC

4) DC offset protection block

The DC offset protection circuit is activated when 0.5V (typ) voltage is applied to either "OUT CH1" or "OUT

CH2," and the hybrid IC is shut down (standby mode).

To release the IC from the standby mode and reactivate the power amplifier, it is necessary to set the standby control

voltage temporarily low (0V).

Subsequently, when the standby control is returned to high (+5V, for example), the power amplifier will become

active again.

The protection level must be set using the 82kΩ resistor. Furthermore, the time constant must be determined using

22μ//22μ capacitors to prevent the amplifier from malfunctioning due to the audio signal.

No. A1501-11/12

STK415-140-E

STK415-140-E BTL Application

STK415-140-E

H

(*1) The voltage applied to the Stand-by pin (#17) must not

exceed the maximum rated value (VST max).

+OFF

SET SET

OUT OUT OUT OUT

Ch1+ Ch1- Ch2+ Ch2-

IN NF ST- NF IN

GND

+Pre

SUB

+V

1

^-OFF-Pre

+V

L

-V

6

L

Ch1Ch1 BY Ch2 Ch2

H

2

3

4

7

8

9

10 11 12 13 14 15 16 17 18 19

5

R30 (*1)

100

pF

Stand-By Control

Voltage VST

56kΩ

60V 60V

/3A /3A

3pF

560Ω 560Ω

3pF

22μF

/10V

22μF

/10V

GND

100Ω/

1W

1kΩ

+V

H

Ch1 IN

100μF

/100V

2.2μF

18V

56kΩ

100μF

/50V

+V

L

/100V

33μF

100μF

/50V

3μH

Ch2 OUT

GND

0.1μF

4.7Ω

100μF

/50V

100μF

/100V

4.7Ω/1W

-V

L

R =8Ω

GND

18V

L

100μF

/100V

100Ω/

1W

3μH

0.1μF

4.7Ω/1W

-V

H

4.7Ω

Ch1 OUT

SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures that result from using

products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition

ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor Co.,Ltd.

products described or contained herein.

SANYO Semiconductor Co.,Ltd. strives to supply high-quality high-reliability products, however, any and all

semiconductor products fail or malfunction with some probability. It is possible that these probabilistic failures or

malfunction could give rise to accidents or events that could endanger human lives, trouble that could give rise

to smoke or fire, or accidents that could cause damage to other property. When designing equipment, adopt

safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not

limited to protective circuits and error prevention circuits for safe design, redundant design, and structural

design.

In the event that any or all SANYO Semiconductor Co.,Ltd. products described or contained herein are

controlled under any of applicable local export control laws and regulations, such products may require the

export license from the authorities concerned in accordance with the above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or

mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise,

without the prior written consent of SANYO Semiconductor Co.,Ltd.

Any and all information described or contained herein are subject to change without notice due to

product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the

SANYO Semiconductor Co.,Ltd. product that you intend to use.

Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed

for volume production.

Upon using the technical information or products described herein, neither warranty nor license shall be granted

with regard to intellectual property rights or any other rights of SANYO Semiconductor Co.,Ltd. or any third

party. SANYO Semiconductor Co.,Ltd. shall not be liable for any claim or suits with regard to a third party's

intellectual property rights which has resulted from the use of the technical information and products mentioned

above.

This catalog provides information as of July 2009. Specifications and information herein are subject

to change without notice.

No. A1501-12/12

PS


型号：	STK415-140-E
厂家：	SANYO SEMICON DEVICE
描述：	2-Channel Power Switching Audio Power IC, 120W+120W 2通道电源开关音频功率IC， 120W + 120W 开关商用集成电路电源开关放大器局域网
文件：	总12页 (文件大小：182K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

STK415-140-E [SANYO]

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