SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
AF Power Amplifier (Split Power Supply)
(60 W min, THD = 0.4%)
STK4038 II
Features
• Compact packaging supports slimmer set designs
• Series designed for 20 up to 200 W and pincompatibility
• Simpler heat sink design facilitates thermal design of
slim stereo sets
• The pulse noises associated with turning the power on
and off have been reduced by the adoption of fixed
current circuits
• Supports addition 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
Package Dimensions
unit: mm
4033
Specifications
Maximum Ratings at Ta = 25°C
Parameter Symbol Condition Rating Unit
Maximum supply voltage V
CC
max ±57 V
Thermal resistance
θj-c 1.4 °C/W
Junction temperature Tj 150 °C
Operating substrate temperature Tc 125 °C
Storage temperature Tstg –30 to +125 °C
Available time for load shorted t
S
*1VCC= ±38 V, RL= 8 Ω, f = 50 Hz, PO= 60 W 2 s
Recommended Operating Conditions at Ta = 25°C
Parameter Symbol Condition Rating Unit
Recommended supply voltage V
CC
±38 V
Load resistance R
L
8 Ω
Operating Characteristics at Ta = 25°C, VCC= ±38 V, RL= 8 Ω, VG = 40 dB, Rg = 600 Ω, RL(non-inductive)
Rating
Parameter Symbol Condition
min typ max
Unit
Quiescent current I
CCO
VCC= ±45.5 V 10 20 50 mA
Output power
P
O
(1) THD = 0.4%, f = 20 Hz to 20 kHz 60 W
P
O
(2) VCC= ±32.5 V, THD = 1.0%, RL= 4 Ω, f = 1 kHz 60 W
Total harmonic distortion THD P
O
= 1.0 W, f = 1kHz 0.3 %
Frequency response f
L
, f
H
PO= 1.0 W, +0dB 20 to 50k Hz
–3
Input resistance r
i
PO= 1.0 W, f = 1kHz 55 kΩ
Output noise voltage V
NO
*2VCC= ±45.5 V, Rg = 10 kΩ 1.2 mVrms
Neutral voltage V
N
VCC= ±45.5 V –70 0 +70 mV
Note: Use rated power supply for test unless otherwise specified.
1. Use the transformer power supply shown on the next page when measuring the available time for load shorted and the output noise voltage.
2. Output noise voltage represents the peak value on the rms scale (VTVM). The noise voltage waveform does not include the pulse noise.
[STK4038II]