STK416-100-E_技术文档

Ordering number : EN*A1621

Thick-Film Hybrid IC

3-Channel Power Switching

Audio Power IC, 80W+80W+80W

STK416-090-E

Overview

The STK416-090-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 STK415-100 series (2-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

STK416-090-E

80W×3ch

50W×3ch

60V

STK416-100-E

90W×3ch

60W×3ch

65V

STK416-120-E

120W×3ch

80W×3ch

73V

STK416-130-E

150W×3ch

100W×3ch

80V

Output 1 (10%/1kHz)

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

Max. rated V (quiescent)

H

Max. rated V (quiescent)

L

41V

42V

45V

46V

Recommended operating V (8Ω)

38V

39V

46V

51V

H

Recommended operating V (8Ω)

27V

29V

32V

34V

L

Dimensions (excluding pin height)

78.0mm×44.1mm×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.

21710HKIM No. A1621-1/12

STK416-090-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

60

53

43

41

36

29

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

2.1

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

= 38V, V = 27V, R =8Ω, f=50Hz,

L L

=50W, 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

38

27

O

20 to 20k

0.8

50

V

L

P

V

30

23

O

H

1k

R =4Ω

50

0.4

L

V

L

Total harmonic distortion

Frequency characteristics

Input impedance

THD

V

38

27

H

20 to 20k

50

1.0

%

Hz

V

L

f , f

V

38

27

L

H

+0 -3dB

20 to 50k

55

V

L

ri

V

38

27

H

1k

kΩ

V

L

Output noise voltage

Quiescent current

*2

V

45

30

NO

H

Rg=2.2kΩ

1.0

mVrms

mA

mV

V

L

I

V

45

30

40

CCO

H

R =∞

L

V

150

L

Output neutral voltage

V

45

30

N

H

-70

2.5

0

+70

0.6

V

L

Pin 17 voltage when

standby ON

VST ON

V

38

27

H

Standby

*7

V

L

Pin 17 voltage when

standby OFF

VST OFF

V

38

27

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

H

L

connected.

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

L

O

target.

*6: Please connect –Pre V

by reverse bias.

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

CC

*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).

Continued on next page.

No. A1621-2/12

STK416-090-E

Continued from preceding page.

*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: The thermoplastic adhesive is used to bond the case and the aluminum substrate, so, please be sure to fix the Hybrid

IC on the heat sink before soldering and mount it. In addition, please attach and remove the heat sink at normal

temperature.

*10: Weight of HIC: 36.8g

Outer carton dimensions (W×L×H): 452mm×325mm×192mm

DBA40C

10000μF

+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)

78.0

70.0

9.0

(R1.8)

1

23

0.4

2.9

5.5

3.6

2.0

0.5

(13.0)

22 2.0=44.0

No. A1621-3/12

STK416-090-E

Internal Equivalent Circuit

19

18

11 10

12

7

3

1

Pre Driver

CH1

Pre Driver

CH2

Comparator

15

16

2

Stand-by Circuit

5

4

6

Pre Driver

CH3

Comparator

SUB

13

17

14

12

9

8

21

23 22

20

Test Circuit

STK416-100-E series

+OFF-OFF

+V -V SET SET -Pre -V

OUT OUT OUT OUT

IN NF ST

NF IN

IN NF OUT OUT

+V Ch1+Ch1- Ch2+ Ch2- +Pre SUB GND Ch1 Ch1 BY Ch2 Ch2 Ch3 Ch3 Ch3+Ch3-

L

H

4

5

6

7

8

9

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

1

2

3

R30

Stand-by

Ch3-IN

C23

C24

R28

C22

R19

C08

C18

R07

R23

R24

R26

D03 D04

C21

C17

R18

R20

C09

R22

C20

C19

R21

Ch2-IN

GND

R14

C13

R15

C14

R16

C15

C07

R06

R05

C16

Ch1-IN

+V

H

R03

C05

C01

L03

D01

Ch3-OUT

Ch2-OUT

+V

L

R13

C03

R01

R02

L02

GND

C04

R12

C11

R09

C12

R10

C06

-V

L

GND

D02

C02

R04

R08

C10

L01

-V

H

Ch1-OUT

R11

No. A1621-4/12

STK416-090-E

Recommended External Components

Recommended

Above Recommended

Value

Below Recommended

Value

Parts Location

Circuit Purpose

Value

R01, R02

1.5kΩ

Current for supply switch circuit (comparator)

is determined.

V

holding frequency

V holding frequency

H

range becomes large.

range becomes narrow.

Short-through current

may increase at high

frequency.

R03, R04

100Ω/1W

56kΩ

Resistance for ripple filter.

(Fuse resistance is recommended. Ripple filter is

constituted with C05, C06.)

-

R05, R06, R07

Input impedance is determined.

Output neutral voltage (VN) shift.

(It is referred that R05=R18, R06=R19, R07=R20)

R08, R09, R10

R11, R12, R13

R14, R15, R16

4.7Ω/1W

4.7Ω

Resistance for oscillation prevention.

Noise absorption resistance.

-

560Ω

Voltage gain (VG) is determined with R18, R19, R20.

(As for VG, it is desirable to set up by R14, R15, R16.)

Voltage gain (VG) is determined with R14, R15, R16

It may oscillate.

With especially no

problem

(VG<40dB)

R18, R19, R20

R21, R22, R23

R24, R26, R28

56kΩ

1kΩ

-

Resistance for input filters.

0.22Ω

±10%, 5W

Note*6

Output emitter resistor

Decrease of maximum

output power

It may cause thrmal

runaway

(Metal-plate Resistor is recommended.)

R30

Select restriction resistance, for the impression voltage of ‘#17 (stand-by) pin’ must not exceed the maximum

rating.

C01, C02

100μF/100V

100μF/50V

100μF/100V

Capacitor for oscillation prevention.

•Locate near the HIC as much as possible.

•Power supply impedance is lowered and stable

operation of the IC is carried out.

-

(Electrolytic capacitor is recommended.)

Capacitor for oscillation prevention.

•Locate near the HIC as much as possible.

•Power supply impedance is lowered and stable

operation of the IC is carried out.

C03, C04

C05, C06

(Electrolytic capacitor is recommended.)

Decoupling capacitor

The change in the ripple ingredient mixed in an input

side from a power supply line

•The ripple ingredient mixed in an input side is

removed from a power supply line.

(Ripple filter is constituted with R03, R04.)

Capacitor for oscillation prevention.

C07, C08, C09

C10, C11, C12

C13, C14, C15

3pF

0.1μF

It may oscillate.

Capacitor for oscillation prevention.

22μF/10V

Negative feedback capacitor.

The voltage gain (VG) of

low frequency is

The voltage gain (VG) of

low frequency decreases.

•The cutoff frequency of a low cycle changes.

(f =1/(2π•C13•R14))

extended. However, the

pop noise at the time of a

power supply injection

also becomes large.

L

C16, C17, C18

C19, C20, C21

2.2μF/50V

Input coupling capacitor (for DC current prevention.)

-

470pF

Input filter capacitor

•A high frequency noise is reduced with

the filter constituted by R21, R22, R23.

Capacitor for oscillation prevention.

-

C22, C23, C24

D01, D02

100pF

15V

It may oscillate.

Decide offset voltage for supply voltage ciecuit.

Decrease distortion at

supply voltage shift

Increase distortion at

supply voltage shift

D03, D04

3A/60V

Adverse current prevention diode

(FRD is recommended)

-

L01, L02, L03

3μH

Coil for oscillation prevention.

With especially

no problem

It may oscillate.

No. A1621-5/12

STK416-090-E

Sample PCB Trace Pattern

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

STK415, 416-100-E Series PCB Parts List

PCB Name: STK415/416sr-PCB C

Location No.

PARTS

RATING

Component

(*2) 2ch Amp doesn't mount parts of ( ).

enabled

R01, R02

ERG1SJ152

ERG1SJ101

RN16S563FK

ERX1SJ4R7

RN14S4R7FK

RN16S561FK

RN16S102FK

1.5kΩ, 1W

100Ω, 1W

56kΩ, 1/6W

4.7Ω, 1W

R03, R04

R05, R06, (R07), R18, R19, (R20)

R08, R09, (R10)

R11, R12, (R13)

R14, R15, (R16)

R21, R22, (R23)

R24, R26, (R28)

R25, R27, (R29)

R35, R36, (R37)

C01, C02, C05, C06

C03, C04

4.7Ω, 1/4W

560Ω, 1/6W

1kΩ, 1/6W

ERX2SJR22

-

0.22Ω, 5W (*1)

-

Short

-

Short

enabled

100MV100HC

100MV50HC

DD104-63CJ030C50

ECQ-V1H104JZ

10MV22HC

50MV2R2HC

DD104-63B471K50

DD104-63B101K50

GZA15X

100μF, 100V

100μF, 63V

3pF, 50V

0.1μF, 50V

22μF, 10V

2.2μF, 50V

470pF, 50V

100pF, 50V

VZ=15V

C07, C08, (C09)

C10, C11, (C12)

C13, C14, (C15)

C16, C17, (C18)

C19, C20, (C21)

C22, C23, (C24)

D01, D02

(*3)

D03, D04

ERC91-02SC

-

60V, 3A (FRD)

3μH

L01, L02, (L03)

Stand-by Control Circuit

Tr1

2SC1209 (Reference)

GMB05 (Reference)

RN16S512FK

RN16S102FK

RN16S333FK

RN16S202FK

10MV47HC

-

V

≥80V, I ≥10mA

CE

C

D05

Di

R30

R32

R33

R34

C25

2.7kΩ, 1/6W

1kΩ, 1/6W

33kΩ, 1/6W

2kΩ, 1/6W

47μF, 10V

-

J01, 02, J03, J04, J05, J06

(*1) Metal Plate Cement Resistor use.

(*2) STK415series (2ch Amp) doesn't mount parts of ( )

(*3) STK415-140-E uses GZA18X (ZD=18X) for D01, D02.

No. A1621-6/12

STK416-090-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

-

+

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

-

STK433-290-E 80W/JEITA

STK433-300-E 100W/JEITA

STK433-320-E 120W/JEITA

STK433-330-E 150W/JEITA

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. A1621-7/12

STK416-090-E

Evaluation Board Characteristics

THD - P

Pd - P

O

10

150

7

V = 38V

H

140

130

120

110

100

90

5

3

2

V = 27V

L

VG=40dB

Rg=600Ω

Tc=25°C

VG=40dB

f=1kHz

1.0

7

5

3

2

Rg=600Ω

Tc=25°C

R =8Ω

L

3ch Drive

R =8Ω

L

80

3ch Drive

0.1

7

5

3

2

70

60

50

40

0.01

7

5

30

20

3

2

10

0

0.1

0.001

1.0

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

10

100

1000

1.0

Output power, P /ch - W

ITF02727

ITF02728

P

- V^O

L

P

- V^O

H

O

150

140

130

120

110

100

90

150

140

130

120

110

100

90

V = 38V

H

V = 27V

L

VG=40dB

f=1kHz

VG=40dB

f=1kHz

R =8Ω

L

3ch Drive

Rg=600Ω

80

70

60

50

40

30

20

10

0

10

0

20

30

40

30

40

50

60

Supply voltage, V

-

V

Supply voltage, V - V

H

ITF02729

ITF02730

L

P

- f

O

150

140

130

120

110

100

90

V = 38V

H

V = 27V

L

R =8Ω

L

3ch Drive

VG=40dB

Tc=25°C

THD=10%

THD=0.8%

80

70

60

50

40

30

20

10

0

10

2

3

5 7

2

3

5 7

2

3

5 7

2

3

5 7

100k

100

1k

10k

Frequency, f - Hz

ITF02731

No. A1621-8/12

STK416-090-E

[Thermal Design Example for STK416-090-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 = 38V, V = 27V and R is 8Ω, the total power dissipation, Pd, within the hybrid

H

L

IC, will be a maximum of 91W 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 ≈ 45.0W

(when 1/8P max. = 6.25W, P max. = 50W).

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 2.1°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)/45.0

< 1.67

From formula (2)'

θc-a < (150 − 50)/45.0 − 2.1/6

< 1.87

Therefore, the value of 1.67°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. A1621-9/12

STK416-090-E

STK416-100-E Series Stand-by Control & Mute Control Application

4.7kΩ

STK416-100-E Series

#17pin

+OFF -OFF

OUT OUT OUT OUT

IN

NF

ST NF IN

IN

NF OUT OUT

+V

-V SET SET -Pre -V

+V Ch1+ Ch1- Ch2+ Ch2- +Pre SUB GND Ch1 Ch1

BY Ch2 Ch2 Ch3 Ch3 Ch3+ Ch3-

L

H

standard voltage VST

2

3

4

5

6

7

8

9 10 11 12 13 14 15 16 17 18 19

20 21 22 23

1

1kΩ

Stand-by Control (ex)

H: Operation Mode (+5V)

L: Stand-by Mode (0V)

33kΩ

2.7kΩ

47μF

/10V

2kΩ

Ch3-IN

Ch2-IN

10k

Ω

10k

Ω

470pF

GND

10kΩ

+V

H

Ch1-IN

+V

10kΩ

2.2kΩ

L

Mute Control

H: Single Mute

L: Normal

Ch3-OUT

GND

Ch2-OUT

GND

-V

L

+5V

Stand-by

Control

-V

H

+5V

Ch1-OUT

Mute Control

ST-BY

MUTE

PLAY

ST-BY

STK416-100-E Series Application explanation

Operate mode (VST

) ≥2.5V

OFF

Stand-By mode (VST ) <0.6V (0V typ)

ON

Stand-by Circuit

in Pre Driver IC

SW transistor

4.7kΩ (*3)

STK416-100-E Series

ΔV

Point.B

BE

Ch1

Ch2

Ch1

GND IN

Ch1 ST

NF BY

Ch2

NF

Ch2

IN

Ch3

OUT(+) OUT(-)

Ch3

-V

+V

H

-Pre

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

SUB

H

1

12

13

14

15

4

5

6

7

9

10

11

16

17 18 19

22

23

8

6.8k

Ω

56kΩ

6.8k

Ω

56k

Ω

56k

Ω

I1

Tr2

Tr1

Tr2

(2) Load short

detection part

22kΩ

56kΩ

I3

Tr4

(*4) R2

0.1μF

I2

Point.C

1kΩ

10kΩ

OUT Ch3

Tr3

(3) Latch-up

circuit part

100k

Ω

1) Stand-by control circuit part

H: Operation mode (+5V)

L: Stand-by mode (0V)

-V

CC

82kΩ

1kΩ

33kΩ

2kΩ

Tr5

Tr6

(*1) R1

(*2)

OUT Ch1

OUT Ch2

Tr5

22μF

82kΩ 22μF

ex) 2.7kΩ

ex) +5V

100

kΩ

33μF

(4) DC vffset

protection

No. A1621-10/12

STK416-090-E

A protection application circuit of STK416-100sr consists of each block of (1)-(4).

(1)Stand-by control circuit part

(2)Load short detection part

(3)Latch-up circuit part

(4)DC voltage protection part

1) Stand-by control circuit part

About #17 pin reference voltage VST.

<1> Operation mode

The SW transistor of pre-driver IC is turned on at VST ≥ 2.5V, and the amplifier becomes operation mode.

ex) at VST (min) = 2.5V

VST = (*2) × IST + 0.6V → 2.5V=4.7kΩ × IST + 0.6V, I1 ≈ 0.40mA

<2> Stand-by mode

The SW transistor of pre-driver IC is turned off at VST ≤ 0.6V (typ 0V), and the amplifier becomes stand-by

mode.

ex) at VST = 0.6V

VST = (*2) × IST+0.6V → 0.6V = 4.7kΩ × IST + 0.6V, I1 ≈ 0mA

(*1) Resistance for restriction

Please set R1 for the voltage (VST) of the stand-by terminal to become ratings (+2.5V to 5.5V (typ 3.0V)).

(*2) Please supply the stand-by control voltage by the microcomputer etc.

(*3) The limitation resistance is built into hybrid IC internal (#17pin) and 4.7kΩ is built into.

2) Load short detection part

Please refer to the attached paper (RL short protect explanation) for the operation explanation.

TR1 (or TR2) doesn't move by normal operation. Because, Point.B - Point.C < 0.6V.

Therefore load short detection part doesn't operate.

But, when a load short-circuited, TR1 (or TR2) operate (Point.B - Point.C > 0.6V), and an electric current ‘I2’ flows.

3) Latch-up circuit part

When I2 was supplied to latch-up circuit, TR3 operate.

VST becomes stand-by mode (0V) when TR3 operates (I3 flows), the power amplifier is protected.

Stand-by mode is maintained when once TR3 operates because TR3 and TR4 compose the thyristor.

It is necessary to make the Stand-by control voltage (*2) L (0V) once to release stand-by mode and to make the

power amplifier operate again.

After, when stand-by control (*2) is returned to H (ex, +5V), it operates again.

(*4) I3 is changed depending on the power-supply voltage (-V ).

CC

Please set resistance (R2) to become I1 < I3 by the following calculation types.

I1 ≤ I3=V /R2

CC

4) DC offset protection part

DC offset protection works at applying VDC (+), VDC (-) ≈ 0.5V (typ) to ‘OUT CH1’ or ‘OUT Ch2’, then HIC will

shutdown (stand-by mode).

It is necessary to make the stand-by control voltage (*2) L (0V) once to release stand-by mode.

The power amplifier operates again after stand-by control (*2) return to H (ex, +5V).

Please set the protection level by the resistance of ‘82kΩ’.

Moreover, please set the time constant by ‘22μ//22μ’ so as not to mis-detect it when the audio signal is output.

No. A1621-11/12

STK416-090-E

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 February 2010. Specifications and information herein are subject

to change without notice.

PS

No. A1621-12/12


型号：	STK416-100-E
厂家：	SANYO SEMICON DEVICE
描述：	Thick-Film Hybrid IC 3-Channel Power Switching Audio Power IC, 80W+80W+80W 厚膜混合IC 3通道电源开关音响电源IC ， 80W + 80W + 80W 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：212K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

STK416-100-E [SANYO]

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