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Ordering number: EN4671A
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Thick Film Hybrid IC
STK4028 X
AF Power Amplifier (Split Power Supply)
(30W min, THD = 0.018%)
Features
• Compact packaging supports slimmer set designs
• Series designed for 30 up to 100W and pin-compatibility
Package Dimensions
unit: mm
4062
[STK4028 X ]
• Simpler heat sink design facilitates thermal design of
slim stereo sets
• Current mirror circuit application reduces distortion to
0.018%
• Supports additon of electronic circuits for thermal shutdown and load-short protection circuit as well as pop
noise muting which occurs when the power supply
switch is turned on and off
Specifications
Maximum Ratings
Parameter Symbol Conditions Ratings Unit
Supply voltage V
Thermal resistance
Junction temperature Tj 150
Operating substrate temperature Tc 125
Storage temperature Tstg
Available time for load short-circuit t
at Ta = 25 ° C
max
CC
j-c 2.1
30 to +125
*1 V
s
= ± 29V, R
CC
= 8 Ω , f = 50Hz, Po = 30W 2 s
L
42 V
C/W
C
C
C
SANYO Electric Co., Ltd. Semiconductor Business Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
62097HA (ID) / 9237AT, TS No. 4671—1/3
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STK4028 X
Operating Characteristics
at Ta = 25 ° C, V
R
: Non-inductive load
L
= ± 29V, R
CC
Parameter Symbol Conditions min typ max Unit
Quiescent current I
P
CCO
(1)
O
Output power
(2)
P
O
Total harmonic distortion THD
Frequency characteristic f
, f
L
Input impedance ri
Output noise voltage V
Neutral voltage V
NO
N
H
*2 V
V
= ± 35.5V 15 120 mA
CC
THD = 0.018%,
f = 20Hz to 20kHz
= ± 26V, THD = 0.04%,
V
CC
R
= 4 Ω , f = 1kHz
L
= ± 29V, f = 1kHz,
V
CC
P
= 1.0W
O
V
= ± 29V,
CC
P
O
V
CC
P
O
CC
V
CC
+0
= 1.0W, dB
–3
= ± 29V, f = 1kHz,
= 1.0W
= ± 35.5V, Rg = 10k Ω
= ± 35.5V -70 0 +70 mV
Notes. For power supply at the time of test, use a constant-voltage po wer supply
unless otherwise specified.
*1 For measurement of available time for load short-circuit and output noise
voltage, use the specified transformer power supply shown right.
*2 The output noise voltage is represented by the peak value on rms scale
(VTVM) of average value indicating type. The noise voltage waveform
includes no flicker noise.
= 8 Ω , VG = 40dB, Rg = 600 Ω , 10kLPF ON,
L
30 W
35 W
0.008 %
20 to 50k Hz
55 k Ω
1.2 mVrms
Specified Transformer Power Supply
(Equivalent to RP-25)
Equivalent Circuit
No. 4671—2/3
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STK4028 X
Sample Application Circuit:
30W min 1 channel AF Power Amplifier
No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear
■
power control systems, vehicles, disaster/crime-pre v ention equipment and the lik e, the failure of which may directly or indirectly cause injury,
death or property loss.
■
Anyone purchasing any products described or contained herein for an above-mentioned use shall:
➀
Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their
officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated
with such use:
➁
Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO.,
LTD., its affiliates, subsidiaries and distributors or any of their officers and employees, jointly or severally.
■
Information (including circuit diagrams and circuit parameters) herein is for e xample only; it is not guaranteed for volume production. SANYO
believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of
intellectual property rights or other rights of third parties.
This catalog provides information as of June, 1997. Specifications and information herein are subject to change without notice.
No. 4671—3/3
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