Ordering

Orderingnumber
number: :ENA2107A
ENA2101A
ENA2107

STK433-330N-E
Thick-Film Hybrid IC

3ch class-AB Audio Power IC

150W+150W+150W

http://onsemi.com

Overview
The STK433-330N-E is a hybrid IC designed to be used in 150W 3ch class AB audio power amplifiers.

Application
Audio Power amplifiers

Features
Pin-to-pin compatible outputs ranging from 40W to 150W.
Miniature package.
Output load impedance: RL = 6 recommended.
Allowable load shorted time: 0.3 second
Allows the use of predesigned applications for standby and mute circuit.

Series model
STK433-040N-E

STK433-060N-E

STK433-130N-E

Output1 (10%/1kHz)

40W 2ch

50W 2ch

150W 2ch

Output2 (0.4%/20Hz to 20kHz)

25W 2ch

35W 2ch

100W 2ch

Max. rating VCC (quiescent)

38V

46V

71.5V

Max. rating VCC (6)

36V

40V

63V

Recommended operating VCC (6)

24V

27V

Dimensions (excluding pin height)

47.0mm25.6mm9.0mm

44V
67.0mm25.6mm9.0mm

STK433-330N-E

STK433-840N-E

STK433-890N-E

Output1 (10%/1kHz)

150W 3ch

40W 4ch

80W 4ch

Output2 (0.4%/20Hz to 20kHz)

100W 3ch

25W 4ch

50W 4ch

71.5V

38V

54V

Max. rating VCC (6)

63V

36V

47V

Recommended operating VCC (6)

44V

25V

34V

64.0mm36.6mm9.0mm

64.0mm31.1mm9.0mm

78.0mm44.1mm9.0mm

Max. rating VCC (quiescent)

Dimensions (excluding pin height)

Specifications
Absolute Maximum Ratings at Ta = 25C, Tc = 25C unless otherwise specified
Parameter

Symbol

Maximum power supply voltage

Minimum operation supply voltage

#13 Operating voltage

Conditions

VCC max (0)

Non- signal

VCC max (1)

Signal, RL 6

VCC min
*5

VST OFF max

Ratings

Unit
71.5

63

10

-0.3 to +5.5

Thermal resistance

j-c

Per one power transistor

1.6

C/W

Junction temperature

Tj max

Should satisfy Tj max and Tc max

150

Operating substrate temperature

Tc max

125

-30 to +125

Storage temperature

Tstg

Allowable time for load short-circuit

ts

*4

VCC = 44V, RL = 6, f = 50Hz

PO = 100W, 1ch drive

0.3

Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.

ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of this data sheet.
Semiconductor Components Industries, LLC, 2013
April, 2013

41713HK/82912HKPC 018-11-0063 No.A2107-1/11

STK433-330N-E
Operating Characteristics at Tc = 25C, RL = 6 (Non-inductive Load), Rg = 600, VG = 30dB
Conditions *2
Parameter
Output power

Total harmonic distortion

Frequency characteristics

Symbol
*1

*1

*1

Input impedance
Output noise voltage

PO 1

44

20 to 20k

0.4

PO 2

44

1k

10

THD 1

44

20 to 20k

THD 2

44

1k

fL, fH

44
44

1k

PO
[W]

THD

min

[%]

96

5.0

VG=30dB

1.0

+0 -3dB

100

53

Rg=2.2k

53

No load

Output neutral voltage

VN

53

VST ON

44

Stand-by

VST OFF

44

Operation

Unit

W
0.4

20 to 50k

%
Hz

55

ICCO

#13 Stand-by OFF threshold *5

max

0.01

1.0

VNO

*5

typ

150

Quiescent current

#13 Stand-by ON threshold

*3

[Hz]

ri

Ratings

VCC
[V]

k
1.0

mVrms

60

120

160

mA

-70

+70

mV

0.6

3.0

5.5

2.5

Note
*1. 1channel operation.
*2. All tests are measured using a constant-voltage supply unless otherwise specified
*3. The output noise voltage is peak value of an average-reading meter with a rms value scale (VTVM).
A regulated AC supply (50Hz) should be used to eliminate the effects of AC primary line flicker noise
*4. Allowable time for load short-circuit and output noise voltage are measured using the specified transformer power
supply.
*5. The impression voltage of #13 (Stand-By) pin must not exceed the maximum rating.
Power amplifier operate by impressing voltage +2.5 to +5.5V to #13 (Stand-By) pin.
* Please connect - PreVCC pin (#1 pin) with the stable minimum voltage.
and connect so that current does not flow in by reverse bias.
* In case of heat sink design, we request customer to design in the condition to have assumed market.
* The case of this Hybrid-IC is using thermosetting silicon adhesive (TSE322SX).
* Weight of HIC : (typ) 24.5g
Outer carton dimensions (WLH) : 452mm325mm192mm

Specified transformer power supply

(Equivalent to MG-250)

DBA40C

10000F
+
+
10000F

+VCC
500
500

-VCC

No.A2107-2/11

STK433-330N-E
Package Dimensions
unit : mm (typ)
64.0
(R1.8)

9.0

25.8

18.7

5.0

36.6

55.6

19
2.9

4.0

3.6
2.0
(9.8)

0.4

0.5

18 2.0=36.0

5.5

RoHS directive pass

Equivalent Circuit
3
8

Pre
Driver

Pre
Driver

Pre
Driver

11
12

Stand-by Circuit
1
2
SUB

5 4 6 7

10

13

14 15 16 17

19 18

No.A2107-3/11

STK433-330N-E
Application Circuit
STK433-330N-E
SUB IC
Ch1
Ch1 Ch1 Ch2 Ch2
-PRE -VCC +VCC OUT OUT OUT OUT +PRE GND GND IN

5
R20

10

11

Ch1
Ch2
NF ST-BY NF

Ch2 Ch3
IN
IN

Ch3
NF

Ch3 Ch3
OUT OUT

12

15

17

18

13

14

16

19

R22

R21
C19

R08

C20

R30

C21

Stand-by Control

R10

R09
C10

C12
C11
C06

R04

+
C05

+
R23

R11
C13

R12
C14

R13
C15

R07

R03

R06

C08

R05

C07

Ch2 IN
GND

C04

Ch1 IN

R02
L03

+VCC
C01

C23

R01

C03

+
R16

L02
R15

C17
R18

-VCC

C18
R19

Ch3 OUT
Ch2 OUT
GND
GND

GND
C02

Ch3 IN

C09

GND
L01

R17
C16

Ch1 OUT

R14

PCB Layout Example

Top view

No.A2107-4/11

STK433-330N-E
STK433-040N-E/060N-E/130N-E/330N-E PCB PARTS LIST
PCB Name : STK433 - 000Sr GEVB - A
Location No.
RATING

(*2) 2ch Amp doesn't mount

parts of (

Component

).
STK433-

Hybrid IC#1 Pin Position

040N-E

060N-E

130N-E/
330N-E

R01

100, 1W

R02, R03, (R04)

1k, 1/6W

R05, R06, (R07), R08, R09, (R10)

56K, 1/6W

R11, R12, (R13)

1.8K, 1/6W

R14, R15, (R16)

4.7, 1/4W

R17, R18, (R19)

4.7, 1W

R20, R21, (R22)

0.22, 2W

0.22, 5W

C01, C02, C03, C23

100F, 100V

C04, C05, (C06)

2.2F, 50V

C07, C08, (C09)

470pF, 50V

C10, C11, (C12)

3pF, 50V

C13, C14, (C15)

10F, 16V

C16, C17, (C18)

0.1F, 50V

C19, C20, (C21)

***pF, 50V

R34, R35, (R36)

Jumper

L01, L02, (L03)

100pF

56pF

3H

Tr1

VCE 75V, IC 1mA

D1

Di

Stand-By

R30 (*2)

2.7k, 1/6W

(*2)

Control

R31

33k, 1/6W

Circuit

R32

1k, 1/6W

R33

2k, 1/6W

C32
J1, J2, J3, J4, J5, J6, J8, J9

33F, 10V

Jumper

J7, JS2, JS3, JS4, JS5, JS7

JS8, JS9
JS6, JS10

Jumper

JS1 (R23)

100, 1W

N.C.

Short

(*1) STK433-040N-E/060N-E/130N-E (2ch Amp) doesn't mount parts of (

(*2) Recommended standby circuit is used.

No.A2107-5/11

STK433-330N-E
Recommended external components
STK433-040N-E/060N-E/130N-E/330N-E
Parts

Recommended

Location

value

R01, R23

100/1W

Above

Below

Recommended value

Recommended value

Resistance for Ripple filter. (Fuse resistance is recommended.

Short-through current

Short-through current

Ripple filter is constituted with C03, C23.)

may decrease at

may increase at high

high frequency.

frequency.

Circuit purpose

R02, R03, R04

1k

Resistance for input filters.

R05, R06, R07

56k

Input impedance is determined.

R08, R09, R10

56k

Voltage Gain (VG) is determined with R11, R12, R13

R11, R12, R13

1.8k

Voltage Gain (VG) is determined with R8, R9, R10

It may oscillate.

With especially no

(As for VG, it is desirable to set up by R11, R12, R13)

(Vg < 30dB)

problem

R14, R15, R16

4.7

Resistance for oscillation prevention.

R17, R18, R19

4.7/1W

Resistance for oscillation prevention.

R20, R21, R22

0.22/2W

This resistance is used as detection resistance of the protection

Output neutral voltage(VN) shift.

(It is referred that R05=R08, R06=R09)

(040N-E,060N-E)

circuit application.

0.22/5W
Note *5

Decrease of

It may cause thermal

Maximum output

runaway

Power

(130N-E,330N-E)
R30

Select Restriction resistance, for the impression voltage of #17 (Stand-By) pin must not exceed the maximum
rating.

C01, C02

100F/50V

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.)

C03, C23

100F/50V

Decoupling capacitor

The change in the Ripple ingredient mixed in

The Ripple ingredient mixed in an input side Is removed from a

an input side from a power supply line

power supply line. (Ripple filter is constituted with R01, R23.)

C04, C05, C06

2.2F/50V

C07, C08, C09

470pF

Input coupling capacitor.(for DC current prevention.)

Input filter capacitor

A high frequency noise is reduced with the filter constituted by

R02, R03, R04

C10, C11, C12

3pF

C13, C14, C15

10F/10V

Capacitor for oscillation prevention.

It may oscillate.

Negative feedback capacitor.

The voltage gain (VG)

The voltage gain (VG)

The cutoff frequency of a low cycle changes.

of low frequency is

of low frequency

(fL = 1/(2 C13 R11))

extended. However,

decreases.

the pop noise at the

time of a power
supply injection also
becomes large.
C16, C17, C18

0.1F

Capacitor for oscillation prevention.

It may oscillate.

C19, C20, C21

100pF (040N-E)

Capacitor for oscillation prevention.

It may oscillate.

56pF (060N-E)
N.C. (130N-E,
330N-E)
L01, L02, L03

3H

Coil for oscillation prevention.

With especially

It may oscillate.

no problem

No.A2107-6/11

STK433-330N-E
Pin Layout
[STK433-000N/-100N/-300Nsr Pin Layout]
1

(Size) 47.0mm25.6mm9.0mm

10

11

12

13

14

15

2ch classAB/2.00mm

STK433-040N 40W/JEITA

STK433-060N 50W/JEITA

(Size) 67.0mm25.6mm9.0mm

STK433-130N 150W/JEITA

13

14

15

(Size) 64.0mm36.6mm9.0mm
STK433-330N 150W/JEITA

10

11

12

16

17

18

19

3ch classAB/2.00mm
-

No.A2107-7/11

STK433-330N-E
Characteristic of Evaluation Board
THD-Po

Pd-Po

STK433-330N-E

STK433-330N-E
260

Total Device Power Dissipation, Pd(W)

Total Harmonic Distortion

THD(%)

100
Vcc= 44V
RL=6
3ch Drive
VG=30dB
Rg=600
Tc=25C

10

1
f=20kHz
0.1
f=1kHz

0.01

0.001

240

Vcc= 44V
f=1kHz
RL=6
3ch Drive
VG=30dB
Rg=600

220
200
180
160

Tc=25C

140
120
100
80
60
40
20
0

0.1

10

100

1000

0.1

Po-Vcc

100

1000

Po-f

STK433-330N-E

STK433-330N-E
260

200

f =1kHz
RL=6
3ch Drive
VG=30dB
Rg=600

180

Tc=25C

240
220

Output Power Per Channel, Po/ch(W)

260

Output Power Per Channel, Po/ch(W)

10

Output Power Per Channel, Po/ch(W)

Output Power Per Channel, Po/ch(W)

THD=10%

160
140

THD=0.4%

120
100
80
60
40
20
0
20

30

40

50

Supply Voltage, Vcc(+-V)

60

240
220
200
180

THD=10%

160
140

THD=0.4%

120
100

Vcc= 44V
RL=6
3ch Drive
VG=30dB
Rg=600
Tc=25C

80
60
40
20
0
10

100

1000

10000

100000

Frequency, f(Hz)

No.A2107-8/11

STK433-330N-E
A Thermal Design Tip For STK433-330N-E Amplifier
[Thermal Design Conditions]
The thermal resistance (c-a) of the heat-sink which manages the heat dissipation inside the Hybrid IC will be
determined as follow:
(Condition 1) The case temperature (Tc) of the Hybrid IC should not exceed 125C
Pd c-a + Ta 125C (1)
Where Ta : the ambient temperature for the system
(Condition 2) The junction temperature of each power transistor should not exceed 150C
Pd c-a + Pd/N j-c + Ta 150C (2)
Where N : the number of transistors (two for 1 channel , ten for channel)
j-c : the thermal resistance of each transistor (see specification)
Note that the power consumption of each power transistor is assumed to be equal to the total power dissipation (Pd)
divided by the number of transistors (N).
From the formula (1) and (2), we will obtain:
c-a (125 Ta)/Pd (1)
c-a (150 Ta)/Pd j-c/N (2)
The value which satisfies above formula (1) and (2) will be the thermal resistance for a desired heat-sink.
Note that all of the component except power transistors employed in the Hybrid IC comply with above conditions.
[Example of Thermal Design]
Generally, the power consumption of actual music signals are being estimated by the continuous signal of
1/8 PO max. (Note that the value of 1/8 PO max may be varied from the country to country.)
(Sample of STK433-330N-E ; 100W3ch)
If VCC is 44V, and RL is 6, then the total power dissipation (Pd) of inside Hybrid IC is as follow;
Pd = 139W (at 12.5W output power,1/8 of PO max)
There are six (6) transistors in Audio Section of this Hybrid IC, and thermal resistance (j-c) of each transistor is
1.6C/W. If the ambient temperature (Ta) is guaranteed for 50C, then the thermal resistance (c-a) of a desired heatsink should be;
From (1) c-a (125 50)/139
0.54
From (2) c-a (150 50)/139 1.6/6
0.45
Therefore, in order to satisfy both (1) and (2), the thermal resistance of a desired Heat-sink will be 0.45C/W.
[Note]
Above are reference only. The samples are operated with a constant power supply. Please verify the conditions when
your system is actually implemented.

No.A2107-9/11

STK433-330N-E
STK433-300 series Stand-by Control & Mute Control & Load-Short Protection
Application
(*1) Please use restriction resistance as there is no Stand-by
terminal voltage (#13pin) beyond maximun rating (VSTmax).

STK433-300N-E series
3

+PRE

SUB

GND

Ch1
IN

Ch1
NF

Ch2
ST-BY NF

Ch2
IN

10

11 12

Ch3
IN

Ch3
NF

13 14

15 16 17 18 19

56k 6.8k

Ch3
OUT

Ch3
OUT

1k

33k

56k 6.8k

33F
/10V

2.7k

(*1)

2k

Stand-by Control(ex)
H:Operation Mode(+5V)
L:Stand-by Mode(0V)

Ch3 IN

56k

56k

0.22

56k 6.8k

Ch2
OUT

0.22

+Vcc

Ch2
OUT

56k

-Vcc

Ch1
OUT

0.22

-PRE

Ch1
OUT

Load Short Protection

Circuit

10k

Ch2 IN

10k

GND

10k

22k
56k

Ch1 IN
10k

1k
0.1F

10k

2.2k

V1

Latch Up
Circuit

R1
(*4)

+Vcc

Mute Control
H:Single Mute
L:Normal

Ch3 OUT
Ch2 OUT

Stand-by
Control

GND
GND
GND
GND

-Vcc

+5V
+5V

Mute
Control

MUTE

Ch1 OUT

(*4) R1 is changed depending on the power-supply voltage(-Vcc).

Please set resistance(R1) to become [V1=0v] by the following calculation types.

ST-BY

PLAY

MUTE

ST-BY

[STK433-300N-E series Stand-By Control Example]

[Feature]
The pop noise which occurs to the time of power supply on/off can be improved substantially by recommendation
Stand-By Control Application.
Stand-By Control can be done by additionally adjusting the limitation resistance to the voltage such as micom, the set
design is easy.
(Reference circuit) STK433-300N-E series test circuit To Stand-By Control added +5V.
1k

(*3)
Stand-by Control
H:Operation Mode(+5V)
L:Stand-by Mode(0V)

33k

#13pin Stand-By OFF threshold.

2.7K(*1)

VST

VBE

IST

-PRE

-Vcc

+Vcc

Ch1
OUT

Ch1
OUT

Ch2
OUT

Ch2
OUT

STK433-300Nseries

+PRE

SUB

10

11

12 13

GND Ch1
IN

Ch1
NF

ST-BY

14

15

16 17

18

19

Ch2
NF

Ch2
IN

Ch3
IN

Ch3
OUT

Ch3
OUT

VBE
Bias Circuit
in PreDriver IC

4.7k(*2)

Ch3
NF

33F

2k

(*2)

(*3)

ex)Stand-By Control Voltage VST=+5v

VST is set by the limitation resistance(*1).
IST =(VST-VBE*2)/((*1)+(*2))
=(5v-0.6v*2)/(4.7k+2.7k)
=0.513(mA)
VST=IST4.7k+VBE=0.5134.7k+0.6=3.0(V)

Switching transistor
in the bias circuit

[Operation explanation] #13pin Stand-By Control Voltage VST

(1) Operation Mode
The switching transistor in the bias circuit turns on and places the amplifier into the operating mode, when 13pin
(VST) voltage added above 2.5V (typ 3.0V).
(2) Stand-By Mode
When 13pin (VST) voltage is stopped (= 0V), the switching transistor in the bias circuit turn off, placing the
amplifier into the standby mode.
(*1) The current limiting resistor must be used to ensure that stand-by pin (13pin) voltage does not exceed its
maximum rated value VST max.
(*2) The pop noise level when the power is turned on can be reduced by setting the time constant with a capacitor
in operating mode.
(*3) Determines the time constant at which the capacitor (*2) is discharged in stand-by mode.

No.A2107-10/11

STK433-330N-E
ORDERING INFORMATION
Device
STK433-330N-E

Package
SIP19
(Pb-Free)

Shipping (Qty / Packing)

25 / Bulk Box

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PS No.A2107-11/11