No. 7248-2/4
STK412-040
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) ±84 V
V
H
: Maximum supply voltage 2 (signal present) VH max(2) RL= 8, 6 Ω ±78 V
V
H
: Maximum supply voltage 3 (signal present) VH max(3) RL= 4 Ω ±60 V
V
L
: Maximum supply voltage 1 (no signal) VL max(1) ±51 V
V
L
: Maximum supply voltage 2 (signal present) VL max(2) RL= 8, 6 Ω ±48 V
V
L
: Maximum supply voltage 3 (signal present) VL max(3) RL= 4 Ω ±36 V
V
H-VL
: Maximum supply voltage *
4
V
H-L
max No load 60 V
Thermal resistance θj-c Per power transistor 1.6 °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
= ±54 V, VL= ±36 V, RL= 8 Ω, f = 50 Hz, PO= 120 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
= ±54
20 to 20 k 0.8 120 W
Output power
V
L
= ±36
P
O
(2)
V
H
= ±43
1 k 0.8 R
L
= 4 Ω 120 W
V
L
= ±29
Total harmonic distortion THD
V
H
= ±54
20 to 20 k 120 0.4 %
V
L
= ±36
Frequency characteristics f
L
, f
H
VH= ±54
1.0 +0 –3 dB
20 to 50 k
Hz
V
L
= ±36
Input impedance ri
V
H
= ±54
1 k 1.0 55 kΩ
V
L
= ±36
Output noise voltage *
2
V
NO
VH= ±65
Rg = 2.2 kΩ 1.0 mVrms
V
L
= ±40
Quiescent current I
CCO
VH= ±65 No load 30 mA
V
L
= ±40 No load 100 mA
Midpoint voltage V
N
VH= ±65
–70 0 +70 mV
V
L
= ±40
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).