SANYO STK404-230-E

Ordering number : EN*A1244A
Thick-Film Hybrid IC
STK404-230-E
One-Channel Class AB Audio
Power Amplifier IC 100W
Overview
The STK404-230-E is a hybrid IC designed to be used in 100W (1-channel) class AB audio power amplifiers.
Applications
• Audio power amplifiers.
Features
• 1-channel audio power amplifier
• Built-in standby circuit
• Overcurrent protection
• Output DC offset protection
• Shutdown circuit when latch-up occurs
• Error signal output (open collector)
Series Models
STK404-200-E
STK404-230-E
Output 1 (10%/1kHz)
100W×1 channels
150W×1 channels
Output 2 (0.4%/20Hz to 20kHz)
60W×1 channels
100W×1 channels
Maximum rated VCC (6Ω)
±50V
±63V
Recommended operating VCC (6Ω)
±36V
Dimensions (excluding pin height)
±44V
59.2mm×25.5mm×8.5mm
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.
61009HKIM No. A1244-1/12
STK404-230-E
Specifications
Absolute Maximum Ratings at Ta = 25°C (excluding rated temperature items), Tc=25°C unless otherwise specified
Parameter
Symbol
Maximum supply voltage 1
Conditions
VCC max (1)
Pin 11 (+VCC), pin 10 (-VCC),
Maximum supply voltage 2
VCC max (2)
RL=6Ω, f=1kHz, PO=100W, t≤25ms
Pin 11 (+VCC), pin 10 (-VCC), RL≥6Ω
Maximum Pre Vcc supply voltage
Pre VCC max
Pin 7 (+PRE), pin6 (-PRE)
Minimum operating supply voltage
VCC min
STBY pin applied voltage
*4
Ratings
Unit
±80
V
±63
V
±63
V
±25
V
V
Vst max
Pin 1 (STBY)
-0.3 to +5.5
STBY pin applied current
Ist max
Pin 1 (STBY)
1.0
mA
OC pin maximum input current
Ioc max
Pin 9 (OC)
±5
mA
DC pin maximum input current
Idc max
Pin 8 (DC)
+5
mA
ERROR pin input voltage
Verror
Pin 2 (ERROR)
+VCC
ERROR pin input current
Ierror
Pin 2 (ERROR)
20
mA
Thermal resistance
θj-c
Per power transistor
1.6
°C/W
Junction temperature
Tj max
Must meet both Tj max and Tc max conditions
Operating IC substrate temperature
Tc max
Storage ambient temperature
Tstg
Allowable load shorted time
*3
ts
V
150
°C
125
°C
-30 to +125
°C
VCC=±44V, RL=6Ω, f=50Hz, PO=50W
0.3
s
Electrical Characteristics at Tc=25°C, RL=6Ω, Rg=600Ω, VG=30dB, non-inductive load RL, unless otherwise specified
Conditions *2
Parameter
Output power
Symbol
*1
VCC
(V)
f (Hz)
PO
(W)
Ratings
unit
THD
min
(%)
PO (1)
±44
20 to 20k
0.4
PO (2)
±44
1k
10
20 to 20k
typ
max
100
W
150
THD
±44
Frequency characteristics *1
fL, fH
±44
Input impedance
ri
±44
VNO
±53
Rg=2.2kΩ
1.0
mVrms
Quiescent current
ICCO
±53
RL=∞
50
mA
Output neutral voltage
VN
±53
0
+70
mV
Pin 8 output DC (+) offset
VDC (-)
0.5
0.7
V
Total harmonic distortion
Output noise voltage
*1
*3
detection voltage
Pin 8 output DC (-) offset
VDC (-)
detection voltage
Pin 9 overcurrent detection
VOC
voltage
Pin 1 threshold voltage for
VST ON
standby ON
Pin 1 threshold voltage for
standby OFF
VST OFF
100
1.0
1k
0.4
+0 -3dB
1.0
-70
±44
-0.7
±44
±44
Hz
55
±44
±44
%
20 to 50k
Standby
mode
Operating
mode
2.5
kΩ
-0.5
V
0.5
0.7
V
0
0.6
V
3.0
V
[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 allowable load shorted time and
output noise voltage measurement.
*4: Use the standby pin (pin 1) 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 1).
*5: The -Pre VCC (pin 6) must be at the lowest level under any circumstances so that the reverse-bias current does not
flow.
* Thermal design must be implemented based on the conditions under which the customer’s end products are expected
to operate on the market.
* The weight of hybrid IC alone: 15g
Package dimensions (length×width×height): 502mm×247mm×282mm
No. A1244-2/12
STK404-230-E
DBA40C
10000μF
+VH
+
500Ω
Designated transformer power supply
(MG-250 equivalent)
+
500Ω
-VH
Package Dimensions
unit:mm (typ)
59.2
8.5
1
20.8
25.5
13
4.0
3.6
16.0
11.0
5.6
52.0
2.9
0.5
2.54
0.4
(10.76)
5.5
12 2.54=30.48
Internal Block Circuit
+VCC
11
+PRE
7
Pre Driver
CH1
13 OUT+
IN
3
NF
4
12 OUT-
DC offset
detector
-PRE
Stand-by
circuit
6
Latch
circuit
Overcurrent
detector
8
DC
9
OC
SUB
5
SUB
/GND
1
2
STBY ERROR
10
-VCC
No. A1244-3/12
STK404-230-E
Test Circuit
STK404-230-E
ST
SUB
BY ERROR IN NF /GND -Pre +Pre
1
R30
2
3
4
5
6
7
DC
8
OC -VCC +VCC OUT- OUT+
9
10 11 12 13
R25 *1
R24 *1
C22
Stand-by
H: Operation
L: Standby/Error reset
OC
DC
VOC
VDC
ERROR
H: Operation
L: Error (open collector)
L01
R18
R14
R21
C16
R11
IN
C19
C07
R05
C10
R08
C13
GND
OUT
GND
R03
+VCC
C01
C05
GND
C06
C02
-VCC
R04
*1 Metal plate cement resistor: 0.22Ω±10% (5W)
Pin Description
Pin No.
Pin name
1
STBY
I
Function
2
ERROR
O
Standby terminal
H: Operation mode, L: Standby mode
Error signal output in protection mode (open collector)
H: Operation mode, L: Protection mode (shutdown)
3
IN
I
Input signal terminal
NF signal input terminal
4
NF
I
5
SUB/GND
G
Ground terminal, circuit ground and sub-ground
6
-PRE
V
Negative power supply for predriver
7
+PRE
V
Positive power supply for predriver
8
DC
I
DC offset detection signal input
L: Protection disabled, H: Protection enabled (system shutdown)
9
OC
I
Overcurrent detection signal input
L: Protection disabled, H: Protection enabled (system shutdown)
10
-VCC
P
Negative power supply for power
11
+VCC
P
Positive power supply for power
12
OUT-
O
Negative output terminal (emitter of PNP power transistor)
13
OUT+
O
Positive output terminal (emitter of NPN power transistor)
No. A1244-4/12
STK404-230-E
Recommended External Parts
Symbol
R03, R04
Recommended
Description
Value
100Ω/1W
Larger than
Smaller than
Recommended Value
Recommended Value
Ripple filtering resistors (Use of fusing resistors is
R05
56kΩ
Virtually determines the input impedance.
R08
4.7Ω/1W
R11
4.7Ω
Noise suppression resistor
R14
1.8kΩ
Used with R18 to determine the voltage gain VG.
R18
56kΩ
Increase in through current
-
desirable. Used with C05 and C06 to form a ripple filter.)
at high frequencies.
VN offset (Ensure R05=R18 when changing.)
Oscillation prevention resistor
-
-
-
-
It may oscillate (Vg<30dB)
None
(VG should desirably be determined by the R14 value.)
R21
1kΩ
R24, R25
0.22Ω±10%,
R30
Remarks *4
C01, C02
100μF/100V
5W
Used with R14 to determine the voltage gain VG.
-
Input filtering resistor
-
-
-
Output emitter resistors (Use of cement resistor is
Decrease in maximum
It may cause thermal-
desirable)
output power
runaway.
A resistor must be used such that the voltage at the Stand-by pin (pin 1) does not exceed the maximum rating.
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).
C05, C06
100μF/100V
Decoupling capacitors.
Increase in ripple components that pass into the input
Eliminate ripple components that pass into the input side from
side from the power line
the power line. (Used with R03 and R04 to form a ripple filter.)
C07
3pF
C10
0.1μF
C13
22μF/10V
Oscillation prevention capacitor
It may oscillate
Oscillation prevention capacitor
It may oscillate
NF capacitor
Increase in low-frequency
Decrease in low-
(Changes the low cutoff frequency; ex/fL=1/2π•C13•R14)
voltage gain, with higher
frequency voltage gain
pop noise at power-on.
C16
2.2μF/50V
C19
470pF
Input coupling capacitor (block DC current)
Input filter capacitor (Used with R21 to form a filter that
suppresses high-frequency noises.)
C22
100pF
L01
3μH
-
-
-
-
Oscillation prevention capacitor
It may oscillate.
Oscillation prevention inductance
None
Sample PCB Trace Pattern
It may oscillate.
Add R50 10kΩ/0.25W
DC offset
J5
Change the
plus terminal
connection
Stand-by circuit
Over current
C10
Connect by solder
No. A1244-5/12
STK404-230-E
Parts List
PCB No.
Parts
R03, R04
Rating
100Ω, 1W
ERG1SJ101
R05
56kΩ, 1/6W
RN16S563FK
R18
56kΩ, 1/6W
RN16S563FK
R08
4.7Ω, 1W
ERX1SJ4R7
R11
4.7Ω, 1/4W
RN14S4R7FK
R14
1.8kΩ, 1/6W
RN16S182FK
R21
1kΩ, 1/6W
RN16S102FK
R24, R25
0.22Ω±10%, 5W
BPR56CFR22J
C01, C02, C05, C06
100μF, 100V
100MV100HC
C07
3pF
DD104-63B3R0K50
C10
0.1μF, 100V
ECQ-V1H104JZ
C13
10μF, 10V
10MV10HC
C16
2.2μF, 50V
50MV2R2HC
C19
470pF
DD104-63B471K50
C22
100pF
DD104-63B101K50
L01
Stand-by
Over Current
3μH
R30
5.6kΩ, 1/6W
RN16S152FK
R32
1kΩ, 1/6W
RN16S102FK
R33
3.3kΩ, 1/6W
RN16S332FK
R34
2.2kΩ, 1/6W
RN16S222FK
C25
33μF, 10V
10MV33HC
D05
-
GMB01 (Ref.)
TR1
-
2SC2362 (Ref.)
TR41
2SA1016 (Ref.)
TR42
2SC2362 (Ref.)
C42
C43
2.2μF, 10V
D41
DC offset
ERROR
J01, 02, 03, 04, 05
10MV2R2HC
GMB01 (Ref.)
R43
220Ω, 1/6W
RN16S221FK
R44
1.8kΩ, 1/6W
RN16S182FK
R45
Jumper
R46
15kΩ, 1/6W
R47
5.1kΩ, 1/6W
RN16S512FK
R48
15kΩ, 1/6W
RN16S153FK
R49
47kΩ, 1/6W
RN16S473FK
R41
33kΩ, 1/6W
RN16S333FK
R42
10kΩ, 1/6W
RN16S103FK
C41
33μF, 10V
10MV33HC
R50
10kΩ, 1/4W
RN14S103FK
RN16S153FK
Jumper
No. A1244-6/12
STK404-230-E
THD - PO
Total power dissipation within the board, Pd - W
100
7
5
3
2
VCC=±44V
VG=30dB
Rg=600Ω
Tc=25°C
RL=6Ω
10
7
5
3
2
1.0
7
5
3
2
0.1
7
5
3
2
0.01
7
5
3
2
0.001
0.1
f=20kHz
1kHz
2 3
5 7 1.0
2 3
5 7 10
2 3
5 7 100
Output power, PO/ch - W
260
240
Output power, PO/ch - W
220
2 3
5 71000
120
100
80
60
80
70
60
50
40
30
20
10
0
0.1
2 3
5 7 1.0
2 3
5 7 10
2 3
5 7 100
2 3
VG=30dB
Rg=600Ω
RL=6Ω
5 71000
ITF02633
PO - f
260
240
220
180
140
90
VCC=±44V
VG=30dB
f=1kHz
Rg=600Ω
Tc=25°C
RL=6Ω
Output power, PO/ch - W
PO - VCC
200
160
Pd - PO
100
ITF02632
Output power, PO/ch - W
Total harmonic distortion, THD - %
Evaluation Board Characteristics
0%
=1
D
H
.4%
z,T
=0
H
D
H
%
1k
0.4
z,T
f=
D=
kH
1
H
T
=
,
f
z
0kH
f=2
200
180
140
100
60
40
20
ITF02634
VCC=±44V
VG=30dB
Rg=600Ω
Tc=25°C
RL=6Ω
80
20
Supply voltage, VCC - ±V
THD=0.4%
120
40
0
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54
THD=10%
160
0
10
2 3
5 7 100
2 3
5 7 1k
2 3
Frequency, f - Hz
5 7 10k
2 3
5 7100k
ITF02635
No. A1244-7/12
STK404-230-E
[Thermal Design Example for STK404-230-E (RL=6Ω)]
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
VCC
• Load resistance
RL
• Guaranteed ambient temperature
Ta
[Example]
When the IC supply voltage, VCC=±44V and RL is 6Ω, the total power dissipation, Pd, within the hybrid IC, will be a
maximum of 64W at 1kHz for a continuous sine wave signal according to the Pd-Po characteristics.
For the music signals normally handled by audio amplifiers, a value of 1/8PO max (PO=12.5W) is generally used for
Pd as an 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 ≈ 45W
(when 1/8PO max. = 12.5W, PO max. = 100W).
The number of power transistors in audio amplifier block of these hybrid ICs, N, is 2, and the thermal resistance per
transistor, θj-c, is 1.6°C/W. Therefore, the required heat sink thermal resistance for a guranteed ambient temperature,
Ta, of 50°C will be as follows.
From formula (1)'
θc-a < (125 − 50)/45.0
< 1.66
From formula (2)'
θc-a < (150 − 50)/45.0 − 1.6/4
< 1.42
Therefore, the value of 1.42°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. A1244-8/12
STK404-230-E
Applications
Standby circuit
Use the current limiting resistor R1 (*1) so that the voltage applied to the Stand-by pin (pin #1) does not exceed the
maximum rating voltage.
STK404-230-E
(*2) R2=4.7kΩ
Bias circuit
(predriver IC)
ST
BY
ERROR
1
2
SUB
IN NF /GND
3
4
-Pre
5
6
+Pre
DC
7
8
OC -VCC +VCC OUT- OUT+
9
10
11
12
13
Standby control voltage (V)
Input current (Ist)
Operating: 0.4mA to 1mA
Pin 1 VST voltage: -0.3V to +5.5V (max. rating)
Operating: H (VST>2.5V)
Standby: L (VST<0.6V)
(*1) R1
Restriction resistor
This pin has a function to release the latch when it is set to the ground level.
Overcurrent Protection Circuit
Overcurrent protection is activated if VOC ≈ 0.5V (typ) is applied to OC (#9). The HIC shuts down (latch mode) and
the state of the error pin switches from high to low. The (open collector output) latch mode is cleared by setting the pin
to the ground level.
Sample Application Circuit
STK404-230-E
ST
BY ERROR IN
1
2
3
NF
4
SUB
/GND -Pre
5
6
+Pre
DC
7
8
OC -VCC +VCC OUT- OUT+
9
10
11
12
13
+
Output to speaker
* See "Application Circuit" for recommended values.
No. A1244-9/12
STK404-230-E
DC Offset Detector Circuit
DC offset protection is activated if VDC(+) or VDC(-)≒0.5V (typ) is applied to DC (#8). The HIC shuts down and the
state of the error pin switches from high to low. The (open collector output) latch mode is cleared by setting the pin to
the ground level.
Set the protection level with the voltage dividing resistors R1 and R2 and determine the time constant value of C so that
the IC will not malfunction when generating the audio signals.
Sample Application Circuit
STK404-230-E
ST
BY ERROR IN
1
2
SUB
/GND -Pre
NF
3
5
4
+Pre
DC
7
8
6
OC -VCC +VCC OUT- OUT+
9
11
10
12
13
R1
C
R2
Output to speaker
* Please refer to ’13.Application circuit’ about recommended Value.
Error Indicator (Open Collector)
The state of the ERROR pin (#2) switches from high to low (open collector output) when a protection circuit is
activated.
STK404-230-E
+V (to +VCC)
ST
BY ERROR IN
1
2
3
NF
4
SUB
/GND -Pre +Pre
5
6
7
DC
OC
8
9
-VCC +VCC OUT- OUT+
10
11
12
13
ERROR
H: Normal condition
L: Error
Ierror (max) 20mA
No. A1244-10/12
STK404-230-E
Pre-VCC Limiting Circuit (STK404-230-E)
The ±Pre voltages can be limited under maximum rated conditions (±63V) as shown below.
Sample Circuit
STK404-230-E
ST
BY ERROR IN
1
Standby
2
R30
3
NF
4
SUB
/GND -Pre
5
+Pre
DC
OC
7
8
9
6
-VCC +VCC OUT- OUT+
10
11
12
13
100pF
0.22Ω *1
H: Operating
L: Standby/error reset
OC
ERROR
DC
Open collector output
H: Operation
L: Error
3μH
1.8kΩ
IN
1kΩ
OUT
56kΩ
C16
4.7Ω
GND
470pF
3pF
56kΩ
10μF
/10V
100Ω
/1W
100μF
/100V
100Ω
/1W
GND
+VCC
TR1
R2
100μF
/100V
0.1μF
4.7Ω
100μF
/100V
R1
ZD
GND
ZD
R4
100μF
/100V
R3
TR2
-VCC
*1 Metal Plate Cement Resistor 0.22Ω±10%(5W)
External Component Examples (at Ta=50°C)
[Conditions]
Limiting voltage = ±56V
VCC max = ±80V
Ambient temperature = 50°C
TR1
TR2
ZD
R1, R3
R2, R4
: 2SD863, SANYO
: 2SB764, SANYO
: MAZ7560 (Vz=56V), Panasonic
: 5.6kΩ
: 22Ω
* ±pre current = 25mA (max.)
* The external components should be selected according to the conditions of the product incorporating the HIC.
No. A1244-11/12
STK404-230-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.
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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.
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product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the
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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed
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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 June, 2009. Specifications and information herein are subject
to change without notice.
PS No. A1244-12/12