STK416-090-E

No. A1621-2/12

Specifications

Absolute maximum ratings at Ta=25

°C (excluding rated temperature items), Tc=25°C unless otherwise specified

Parameter

Symbol

Conditions

Ratings

Unit

VH maximum quiescent supply voltage 1

VH max (1)

When no signal

±60

V

VH maximum supply voltage 2

VH max (2)

RL≥6Ω

±53

V

VH maximum supply voltage 3

VH max (3)

RL≥4Ω

±43

V

VL maximum quiescent supply voltage 1

VL max (1)

When no signal

±41

V

VL maximum supply voltage 2

VL max (2)

RL≥6Ω

±36

V

VL maximum supply voltage 3

VL max (3)

RL≥4Ω

±29

V

Maximum voltage between VH and VL *4

VH-VL max

No loading

60

V

Standby pin maximum voltage

Vst max

-0.3 to +5.5

V

Thermal resistance

θj-c

Per power transistor

2.1

°C/W

Junction temperature

Tj max

Both the Tj max and Tc max conditions must be met.

150

°C

IC substrate operating temperature

Tc max

125

°C

Storage temperature

Tstg

-30 to +125

°C

Allowable load shorted time

*3

ts

VH=±38V, VL=±27V, RL=8Ω, f=50Hz,

PO=50W, 1-channel active

0.3

s

Electrical Characteristics at Tc=25

°C, RL=8Ω (non-inductive load), Rg=600Ω, VG=40dB, VZ=15V

Conditions *1

Ratings

Parameter

Symbol

V

(V)

f

(Hz)

PO

(W)

THD

(%)

min

typ

max

unit

PO (1)

VH

VL

±38

±27

20 to 20k

0.8

50

Output power

PO (2)

VH

VL

±30

±23

1k

0.8

RL=4Ω

50

W

Total harmonic distortion

THD

VH

VL

±38

±27

20 to 20k

50

0.4

%

Frequency characteristics

fL, fH

VH

VL

±38

±27

1.0

+0 -3dB

20 to 50k

Hz

Input impedance

ri

VH

VL

±38

±27

1k

1.0

55

k

Ω

Output noise voltage

*2

VNO

VH

VL

±45

±30

Rg=2.2k

Ω

1.0

mVrms

VH

±45

40

Quiescent current

ICCO

VL

±30

RL=∞

150

mA

Output neutral voltage

VN

VH

VL

±45

±30

-70

0

+70

mV

Pin 17 voltage when

standby ON

*7

VST ON

VH

VL

±38

±27

Standby

0

0.6

V

Pin 17 voltage when

standby OFF

*7

VST OFF

VH

VL

±38

±27

Operating

2.5

3.0

V

[Remarks]

*1: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out.

*2: The output noise voltage values shown are peak values read with a VTVM. However, an AC stabilized (50Hz)

power supply should be used to minimize the influence of AC primary side flicker noise on the reading.

*3: Use the designated transformer power supply circuit shown in the figure below for the measurements of allowable

load shorted time and output noise voltage.

*4: Design circuits so that (

|VH|-|VL|) is always less than 40V when switching the power supply with the load

connected.

*5: Set up the VL power supply with an offset voltage at power supply switching (VL-VO) of about 8V as an initial

target.

*6: Please connect –Pre VCC pin (#5 pin) with the stable minimum voltage and connect so that current does not flow in

by reverse bias.

*7: Use the standby pin (pin 17) so that the applied voltage never exceeds the maximum rating.

The power amplifier is turned on by applying +2.5V to +5.5V to the standby pin (pin 17).

Continued on next page.