SANYO STK412-000 Service Manual
Ordering number : ENN7244
20703AS (OT) No. 7244-1/4
Overview
The STK412-000 series are class H audio power amplifier
hybrid ICs that feature a built-in shift power supply
circuit. These Provide ICs high efficiency audio power
amplification by controlling (switching) the supply
voltage supplied to the power transistors according to the
detected level of the input audio signal.
Features
• Pin compatible IC series that covers power ratings from
50 W × 2 channels to 180 W × 2 channels at 0.7 or 0.8%
THD, 20 Hz to 20 kHz. This allows the use of a
common PCB for all output classes.
• The pin arrangement is also unified with that of the
three-channel STK413-000 series. This means that PCBs
designed for three-channel models can also be used for
two-channel models.
• Miniature package
— 50 W/ch to 120 W/ch (THD = 0.8%, f = 20 Hz to 20
kHz): 64 × 36.5× 8.5 mm*
— 150 W/ch to 180 W/ch (THD = 0.7%, f = 20 Hz to
20 kHz): 78 × 44× 9 mm*
* Not including the IC pins.
• Allowable load shorted time: 0.3 s
Package Dimensions
unit: mm
4196-SIP18
1
18
64.0
55.6
18.7
36.5
(6.21)
17
×
2.54=43.18
3.6
0.5
2.54
8.5
4.0
0.4
5.5
25.8
2.9
SANYO: SIP18
[STK412-000]
STK412-000
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Two-Channel Shift Power Supply Audio Power Amplifier ICs
60W + 60 W
Thick-Film Hybrid IC
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO 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 products described or contained
herein.
No. 7244-2/4
STK412-000
Parameter
Type No.
STK412-090 STK412-000 STK412-010 STK412-020 STK412-030 STK412-040 STK412-150 STK412-170
Output (20 Hz to 20 kHz) 50 W + 50 W 60 W + 60 W 70 W + 70 W 80 W +80 W
100 W + 100 W120 W + 120 W 150 W + 150 W180 W + 180 W
[THD] [0.8 %] [0.8 %] [0.8 %] [0.8 %] [0.8 %] [0.8 %] [0.7 %] [0.7 %]
Maximum supply voltage, V
H
±60 V ±65 V ±69 V ±73 V ±80 V ±84 V ±95 V ±95 V
(No signal)
Maximum supply voltage, V
L
±41 V ±42 V ±44 V ±45 V ±46 V ±51 V ±61 V ±60 V
(No signal)
Recommended supply voltage,
±37 V ±39 V ±43 V ±45 V ±51 V ±54 V ±57 V ±54 V
V
H
Recommended supply voltage,
±27 V ±29 V ±30 V ±32 V ±34 V ±36 V ±38 V ±37 V
V
L
Recommended load impedance
8 Ω 6 Ω 4 Ω
Package 64 mm × 36.5 mm × 8.5 mm 78 mm × 44 mm × 9 mm
Series Organization
Parameter Symbol Conditions Ratings Unit
V
H
: Maximum supply voltage 1 (no signal) VH max(1) ±65 V
V
H
: Maximum supply voltage 2 (signal present) VH max(2) RL= 8, 6 Ω ±57 V
V
H
: Maximum supply voltage 3 (signal present) VH max(3) RL= 4 Ω ±46 V
V
L
: Maximum supply voltage 1 (no signal) VL max(1) ±42 V
V
L
: Maximum supply voltage 2 (signal present) VL max(2) RL= 8, 6 Ω ±37 V
V
L
: Maximum supply voltage 3 (signal present) VL max(3) RL= 4 Ω ±29 V
V
H-VL
: Maximum supply voltage *
4
V
H-L
max No load 60 V
Thermal resistance θj-c Per power transistor 1.9 °C/W
Junction temperature Tj max
Both the Tjmax and Tcmax conditions must be met.
150 °C
Operating IC substrate temperature Tc max 125 °C
Storage temperature Tstg –30 to +125 °C
Allowable load shorted time *
3
ts
V
H
= ±39 V, VL= ±29 V, RL= 8 Ω, f = 50 Hz, PO= 60 W, 0.3 s
one channel operating
Specifications
Maximum Ratings at Ta = 25°C
These products are organized into a series based on their output power.
Parameter Symbol
Test conditions *
1
Standard value
Unit
V
CC
(V) f (Hz) PO(W) THD (%) min typ max
P
O
(1)
V
H
= ±39
20 to 20 k 0.8 60 W
Output power
V
L
= ±29
P
O
(2)
V
H
= ±32
1 k 0.8 R
L
= 4 Ω 60 W
V
L
= ±24
Total harmonic distortion THD
V
H
= ±39
20 to 20 k 60 0.4 %
V
L
= ±29
Frequency characteristics f
L
, f
H
VH= ±39
1.0 +0 –3 dB
20 to 50 k
Hz
V
L
= ±29
Input impedance ri
V
H
= ±39
1 k 1.0 55 kΩ
V
L
= ±29
Output noise voltage *
2
V
NO
VH= ±47
Rg = 2.2 kΩ 1.0 mVrms
V
L
= ±31
Quiescent current I
CCO
VH= ±47 No load 30 mA
V
L
= ±31 No load 100 mA
Midpoint voltage V
N
VH= ±47
–70 0 +70 mV
V
L
= ±31
Operating Characteristics at Ta = 25°C, RL= 8 Ω, Rg = 600 Ω, VG = 40 dB, VZ= 15 V, RLmust be a noninductive load.
Notes: *1. Unless otherwise specified, a constant-voltage power supply must be used during inspection.
*2. The output noise voltage rating gives the peak value read by an averaging VTVM. However, to eliminate the influence of flicker noise from the AC
primary side line, use an AC stabilized power supply (50 Hz).
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