41713HK/82912HKPC 018-11-0080 No.A2105-1/10
http://onsemi.com
Semiconductor Components Industries, LLC, 2013
April, 2013
STK404-070N-E
Overview
The STK404-070N-E is a hybrid IC for the audio power amplifier that mounts discrete components as the audio
power amplifier circuit in small space using the original Insulated Metal Substrate Technology IMST. The compact
package has been achieved by adopting the low thermal resistance substrate (our conventional model kind ratio).
Application
Audio Power use
Features
Pin-to-pin compatible outputs ranging from 60W to 180W
Miniature package
Output load impedance: RL = 6 recommended.
Allowable load shorted time: 0.3 second
Allows the use of predesigned applications for standby, mute, and the load short protection circuit.
Selection Guide
STK404-070N-E STK404-120N-E STK404-140N-E
Output1 (10%/1kHz) 60W 1ch 120W 1ch 180W 1ch
Output2 (1%/20Hz to 20kHz) 40W 1ch 80W 1ch 120W 1ch
Maximum rating VCC max (no sig.) 46V 65V 78V
Maximum rating VCC (6) 39V 59V 73V
Recommended operating VCC (6) 30V 41V 51V
Package size 44.0mm25.6mm8.5mm 46.6mm25.5mm8.5mm 59.2mm25.5mm8.5mm
Specifications
Absolute Maximum Ratings at Ta = 25C, Tc = 25C unless otherwise specified
Parameter Symbol Conditions Ratings Unit
Power supply voltage 1 VCC max1 Non-signal 46 V
Power supply voltage 2 VCC max2 Signal, RL = 6 39 V
Thermal resistance j-c Per one power transistor 3.0 C/W
Junction temperature Tj max 150 C
Operating substrate temperature Tc max 125 C
Storage temperature Tstg -30 to +125 C
Allowable time for load short-circuit
*3 ts VCC = 28V, RL = 6, f = 50Hz
PO = 40W 0.3 s
Ordering number : ENA2105A
Thick-Film Hybrid IC
1ch class-AB Audio Power IC
60W
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
C onditions 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 10 of this data sheet.
STK404-070N-E
No.A2105-2/10
Operating Characteristics at Tc = 25C, RL = 6 (Non-inductive load), Rg = 600, VG = 30dB
Parameter Symbol Conditions Ratings
Unit
VCC
[V] f
[Hz] PO
[W] THD
[%] min typ max
Output powe r PO 1 ±30 20 to 20k 0.4 40 W
PO 2 ±30 1k 10 60
Frequency characteristics fL, fH ±30 1.0 +0 -3dB 20 to 20k Hz
Input impedance ri ±30 1k 1.0 55 k
Output noi se voltage *2 VNO ±36 Rg=10k 1.2 mVrms
Output neutral voltage VN ±36 -100 0 +100 mV
Quiescent current ICCO ±36 No load 4 14 mA
[Note]
*1. All tests are measured using a constant-voltage supply unless otherwise specified.
*2. 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.
*3. Allowable time for load short-circuit and output noise voltage are measured using the specified transformer power
supply. About the load short circuit, it is designed assuming protecting by cut-off within 0.3 second.
*4. Weight of 1 HIC : (Typ) 10.4g Outer carton dimensions (W×L×H) : 420mm×233mm×277mm
Specified transformer power supply
(Equivalent to MG-200)
+
+
10000
F
10000F
500
500
DBA40C +VCC
-VCC
STK404-070N-E
No.A2105-3/10
Package Dimensions
unit : mm (typ)
RoHS directive pass
Equivalent Circuit
101
(6.82)
0.5
3.6
0.4
2.9
36.5 8.5
44.0
25.6
13.0
9 2.54=22.86
2.54
20.04.0
TR7
TR8
Driver Amp.
TR6
R4
R5
12345678910
Input Amp.
IN NF
SUB
C2
STK404-070N-E
No.A2105-4/10
Test Circuit
C5
C2
C1 C3
C4
R5
R4
R1
R2 R3
3 9 108521 764
+
++
+
+
+
RL
R11
C10
C9
C8
+
C6
C7 OUT
+12V
+VCC
-VCC
IN
R10
R8
R
D1
6
R7
L1
STK404-070N-E
PCB Layout Example
Top view
Top view
STK404-070N-E
No.A2105-5/10
PCB Parts List
Type (IC1) STK404-070N-E STK404-120N-E STK404-140N-E
Position of (1)pin Third from the right end Second from the right end The right end
Location
R1 1k
R2 56k
R3 1.8k
R4 100/1W
R5 56k
R6 10k/1W 4.7k/1W 5.1k/1W
R7 10k/1W 4.7k/1W 5.1k/1W
R8 0.22/5W
R9 - 0.22/5W
R10 4.7/1W
R11 4.7/1W
C1 470pF
C2 2.2F/50V
C3 10F/50V
C4 100F/100V
C5 5pF
C6 100F/50V
C7 47F/100V
C8 10F/100V
C9 10F/100V
C10 0.1F
D1 200V/0.5A Short Short
L1 2.2H
J1 15mm
J2 10mm
STK404-070N-E
No.A2105-6/10
Pin Layout
[STK404-000Nsr Pin Layout]
1 2 3 4 5 6 7 8 9 10
(Size) 44.0mm25.6mm8.5mm 1ch classAB/2.54mm
STK404-070N 60W/JEITA I
N
/
C
H
1
N
F
/
C
H
1
S
U
B
-
P
R
E
+
P
R
E
+
p
o
w
e
r
T
R
-
p
o
w
e
r
T
R
-
V
C
C
+
V
C
C
O
U
T
/
C
H
1
1 2 3 4 5 6 7 8 9 10 11 12
(Size) 46.6mm25.5mm8.5mm 1ch classAB/2.54mm
STK404-120N 120W/JEITA T
H I
N
/
C
H
1
N
F
/
C
H
1
S
U
B
-
P
R
E
+
P
R
E
+
p
o
w
e
r
T
R
-
p
o
w
e
r
T
R
-
V
C
C
+
V
C
C
O
U
T
/
C
H
1
-
O
U
T
/
C
H
1
+
1 2 3 4 5 6 7 8 9 10 11 12 13
(Size) 59.2mm25.5mm8.5mm 1ch classAB/2.54mm
STK404-140N 180W/JEITA T
H
1
T
H
2
I
N
/
C
H
1
N
F
/
C
H
1
S
U
B
-
P
R
E
+
P
R
E
+
p
o
w
e
r
T
R
-
p
o
w
e
r
T
R
-
V
C
C
+
V
C
C
O
U
T
/
C
H
1
-
O
U
T
/
C
H
1
+
STK404-070N-E
No.A2105-7/10
Characteristic of Evaluation Board
0.001
0.01
0.1
1
10
100
0.1 1 10 100
Total Harmonic Distor t ion
THD(%)
O ut p ut P owe r Pe r Cha nnel, Po / c h( W)
THD-Po
STK404-070N-E
Vcc=±30V
RL=6Ω
1ch Drive
VG=30dB
Rg=600Ω
Tc=25°C
f=1kHz
f=20kHz
0
10
20
30
40
50
60
70
80
90
100
110
120
20 22 24 26 28 30 32 34 36 38 40
O ut p ut Po we r Pe r Cha nnel, Po/ c h( W )
Supply Voltage, Vcc(+- V)
Po-Vcc
STK404-070N-E
f=1kHz
RL=6Ω
1ch Drive
VG=30dB
Rg=600Ω
Tc=25°C
THD=0.4%
(f=1kHz)
THD=10%
(f=1kHz)
0
10
20
30
40
50
60
0.1 1 10 100 1000
Total Device Power Dissipation, Pd(W)
O ut p ut P owe r Pe r Cha nnel, Po / c h( W)
Pd-Po
STK404-070N-E
Vcc=±30V
f=1kHz
RL=6Ω
1ch Drive
VG=30dB
Rg=600Ω
Tc=25°C
0
10
20
30
40
50
60
70
80
90
100
110
120
10 100 1000 10000 100000
Output Power Per Channel, Po/ ch(W)
Frequency, f(Hz)
Po-f
STK404-070N-E
Vcc=±30V
RL=6Ω
1ch Drive
VG=30dB
Rg=600Ω
Tc=25°C
THD=0.4%
THD=10%
STK404-070N-E
No.A2105-8/10
A Thermal Design Tip For STK404-070N-E Amplifier
[Thermal Design Conditions]
The thermal resistance (θc-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 125°C
Pd c-a + Ta 125°C ··································································· (1)
Where Ta : the ambient temperature for the system
(Condition 2) The junction temperature of each power transistor should not exceed 150°C
Pd c-a + Pd/N j-c + Ta 150°C ·················································· (2)
Where N : the number of transistors (two for 1 channel , ten for channel)
θj-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 STK404-070N-E ; 40W×1ch)
If VCC is ±30V, and RL is 6, then the total power dissipation (Pd) of inside Hybrid IC is as follow;
Pd = 19.6W (at 5W output power,1/8 of PO max)
There are two (2) transistors in Audio Section of this Hybrid IC, and thermal resistance (θj-c) of each transistor is
3.0°C/W. If the ambient temperature (Ta) is guaranteed for 50°C, then the thermal resistance (θc-a) of a desired heat-
sink should be;
From (1)’ c-a (125 50)/19.6
3.83
From (2)’ c-a (150 50)/19.6 3.0/2
3.60
Therefore, in order to satisfy both (1)’ and (2)’, the thermal resistance of a desired Heat-sink will be 3.60°C/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.
STK404-070N-E
No.A2105-9/10
STK404-000N-Ese Stand-by control & Mute control Application
41 10 12 13119632 875
41 10 12119632 875
41 109632 875
+
++
+
+
+
+
OUT
+12V
+VCC
-VCC
IN
STK404-140N-E
STK404-120N-E
STK404-070N-E
10k
10k
10k
10k
6.8k
Vz=13V
12V Regulator
Stand-by Control
H:Operation Mode
L:Stand-by Mode
tdr 1s
SB1
SB2
Mute
ST-BY ST-BYMUTE MUTEPLAY
tdf 100ms
5V
5V
5V
Mute Control
H:Signal Mute
L:Normal
+12V +VCC
10k
10k
2.2k
10k
10k
10k
SB1
10k
SB2
STK404-000N-Esr Thermal shut down Application
41 10 12 13119632 875
41 10 12119632 875
Thermal sensor
+12V
shutdown signal
STK404-120N-E
STK404-070N-E No thermal sensor
Thermal sensor
+12V
shutdown signal
STK404-140N-E
STK404-070N-E
No.A2105-10/10
STK404-070N-E Road-Short & DC Voltage Protection Application
1098765321 4
+
-
56k
10k
100k
100k
22k10k10k
10F
47F
1k
+5V
to SB1
to SB2
H:Operation Mode
L:Protection Mode
56k
82k
6.8k
0.22
-VCC
OUT
amp.
SUBNFIN
DC Voltage Protection
Road-Short Protection
+VO
ORDERING INFORMATION
Device Package Shipping (Qty / Packing)
STK404-070N-E SIP10
(Pb-Free) 25 / Bulk Box
PS
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