SANYO STK4028X Datasheet
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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
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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