SANYO STK404-120S Service Manual

Ordering number : EN7733

Thick-Film Hybrid IC

STK404-120S

One-Channel Class AB
Audio Power Amplifier IC 80W

Overview

The STK404-000S series products are audio power amplifier hybrid ICs that consist of optimally-designed discrete
component power amplifier circuits that have been miniaturized using SANYO’s unique insulated metal substrate
technology (IMST). The adoption of a newly-developed low thermal resistance substrate allows this series of devices to
be provided in miniature packages significantly more compact than earlier SANYO products with similar specifications.

Features

• Series of pin compatible power amplifiers ranging from 45W to 180W (10%/1kHz) devices. The same printed circuit
board can be used depending on the output power grade.

• Miniature packages

- 30W to 40W (THD=0.4%, f=20Hz to 20kHz); 44.0mm × 25.6mm × 8.5mm *

- 50W to 80W (THD=0.4%, f=20Hz to 20kHz); 46.6mm × 25.5mm × 8.5mm *

- 100W to 120W (THD=0.4%, f=20Hz to 20kHz); 59.2mm × 25.5mm × 8.5mm *

*: Not including the pins.

• Output load impedance: RL=6Ω

• Allowable load shorted time: 0.3 seconds

• Built-in thermal protection circuit

• Supports the use of standby, muting, and load shorting protection circuits.

Series Organization

These products are organized as a series based on their output capacity.

Item

Output 1 (0.4%/20Hz to 20kHz) 30W 40W 50W 60W 80W 100W 120W

Output 2 (10%/1kHz) 45W 60W 80W 90W 120W 150W 180W

Maximum supply voltage (6Ω) ±37V ±43V ±46V ±51V ±59V ±64V ±73V

Recommended supply voltage (6Ω) ±26V ±30V ±32V ±35V ±41V ±45V ±51V

Remarks - Built-in thermal protection circuit

Package 44.0mm × 25.6mm × 8.5mm 46.6mm × 25.5mm × 8.5mm 59.2mm × 25.5mm × 8.5mm

STK404-050S STK404-070S STK404-090S STK404-100S STK404-120S STK404-130S STK404-140S

Type No.

Any and all SANYO Semiconductor products described or contained herein do not have specifications
that can handle applications that require extremely high levels of reliability, such as life-support systems,
aircraft's control systems, or other applications whose failure can be reasonably expected to result in
serious physical and/or material damage. Consult with your SANYO Semiconductor representative
nearest you before using any SANYO Semiconductor products described or contained herein in such
applications.

SANYO Semiconductor assumes no responsibility for equipment failures that result from using products
at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition
ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor
products described or contained herein.

N2206 / D1505HKIM 5-6764 No.7733-1/6

STK404-120S

Package Dimensions

unit : mm

4204

3.6

(6.63)

Specifications

Maximum Ratings at Ta = 25°C

Maximum supply voltage (Quiescent) VCC max(0)

Maximum supply voltage VCC max(1) RL=6Ω

Thermal sensor maximum voltage Vp Between pins 1 and 4

Thermal sensor maximum current Ip Between pins 1 and 4

Thermal resistance θj-c Per power transistor

Junction temperature Tj max

IC substrate operating temperature Tc max

Thermal sensor operating temperature *2 Tp max

Storage temperature Tstg

Allowable load shorted time *4 ts VCC=±41.0V, RL=6Ω, f=50Hz, PO=80W

Operating Characteristics at Tc=25°C, R

Output power

Frequency characteristics fL,fH ±41.0 1.0 +0 -3dB 20 to 20k Hz

Input impedance ri ±41.0 1k 1.0 55 kΩ

Output noise voltage *3 VNO ±49.0 Rg=10kΩ 1.2 mVrms

Quiescent current I

Neutral voltage VN ±49.0 -100 0 +100 mV

Thermal sensor resistance Rp Tp=25°C, between pins 1 and 4 470 Ω

Thermal sensor temperature Tp Rp=4.7kΩ, between pins 1 and 4 145 °C

46.6

41.2

25.5

12.7

1

2.54

11X2.54=27.94

Parameter Symbol Conditions Ratings Unit

Parameter Symbol

12

0.5

PO(1) ±41.0

PO(2) ±41.0 1k 10 120

±49.0 No load 50 mA

CCO

8.5

17.5

2.9

4.0

0.4

5.5

±65 V

±59 V

16 V

30 mA

1.9 °C /W

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

=6Ω (noninductive load), Rg=600Ω, VG=30dB

L

Conditions *1 Ratings

VCC(V) f(Hz) PO(W) THD(%) min typ max

20 to 20k

0.4 80

150 °C

125 °C

145 °C

-30 to +125 °C

0.3 s

Unit

W

No.7733-2/6