SANYO STK4042II Datasheet

Thick Film Hybrid IC

Ordering number : EN4479A

N3096HA (OT)/82793YO 5-2300 No. 4479-1/3

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)

(80 W min, THD = 0.4%)

STK4042 II

Features

• Miniature package allows audio sets to be made
slimmer.

• Pin-compatible amplifiers with outputs of 20 to
200 W are available.

• Facilitates thermal design of slim stereo sets by
distributing the heat dissipating ICs in the set.

• The adoption of constant current circuits reduces pop
noise when the power supply is turned on or off.

• Supports the design of supplementary electronic circuits
(thermal shutdown, load short protection, and pop noise
muting at power on and off).

Package Dimensions

unit: mm

4075

Specifications

Maximum Ratings at Ta = 25°C

Parameter Symbol Condition Rating Unit

Maximum supply voltage V

CC

max ±65 V

Thermal resistance

θj-c 1.2 °C/W
Junction temperature Tj 150 °C
Operating case temperature Tc 125 °C
Storage temperature Tstg –30 to +125 °C
Available time for load shorted t

S

* VCC= ±45 V, RL= 8 Ω, f = 50 Hz, PO= 80 W 2 s

Note: Use a constant voltage power supply as the test power supply unless otherwise specified.

* Use the transformer power supply shown on the next page when measuring the available time for load shorted and the output noise voltage.

Recommended Operating Conditions at Ta = 25°C

Parameter Symbol Condition Rating Unit

Recommended supply voltage V

CC

±45 V

Load resistance R

L

8 Ω

Operating Characteristics at Ta = 25°C, VCC= ±45 V, RL= 8 Ω (noninductive load), Rg = 600 Ω, VG = 40 dB

Rating

Parameter Symbol Condition

min typ max

Unit

Quiescent current I

CCO

VCC= ±54 V 15 120 mA

Output power P

O

THD = 0.4%, f = 20 Hz to 20 kHz 80 W

Total harmonic distortion THD P

O

= 1.0 W, f = 1 kHz 0.3 %

Frequency response f

L

, f

H

PO= 1.0 W, +0dB 20 to 50 k Hz

–3

Input resistance r

i

PO= 1.0 W, f = 1 kHz 55 kΩ

Output noise voltage V

NO

** VCC= ±54 V, Rg = 10 kΩ 1.2 mVrms

Neutral voltage V

N

VCC= ±54 V –70 0 +70 mV

Note: Use a constant voltage power supply as the test power supply unless otherwise specified.

** The output noise voltage is the peak value measured with an averaging rms scale volt meter. The noise voltage waveform should not include

pulse noise.

[STK4042II]

STK4042 II

Equivalent Circuit

Sample Application Circuit: 80 W (minimum) AF Power Amplifier

No. 4479-2/3

Specified Transformer Power Supply

(MG-200 equivalent)