Sony STK433 Service Manual

Ordering number : EN*A1487

Thick-Film Hybrid IC

STK433-060-E

Overview

The STK433-060-E is a hybrid IC designed to be used in 50W × 2ch class AB audio power amplifiers.

Applications

• Audio power amplifiers.

Features

• Pin-to-pin compatible outputs ranging from 30W to 60W.

• Can be used to replace the STK433-100 series (80W to 150W/2ch)and STK433-200/-300 series (3-channel)

due to its pin compatibility

• Miniature package (47.0mm × 25.6mm × 9.0mm)

• Output load impedance: RL = 6Ω to 4Ω supported

• Allowable load shorted time: 0.3 second

• Allows the use of predesigned applications for standby and mute circuits.

Series Models

STK433-030-E STK433-040-E STK433-060-E STK433-070-E Output 1 (10%/1kHz) 30W×2 channels 40W×2 channels 50W×2 channels 60W×2 channels Output 2 (0.4%/20Hz to 20kHz) 20W×2 channels 25W×2 channels 35W×2 channels 40W×2 channels Max. rated VCC (quiescent) ±34V ±38V ±46V ±50V Max. rated VCC (6Ω) ±32V ±36V ±40V ±44V Max. rated VCC (4Ω) ±26V ±30V ±33V ±37V Recommended operating VCC (6Ω) ±21V ±24V ±27V ±29V Dimensions (excluding pin height) 47.0mm×25.6mm×9.0mm

2-channel class AB audio power IC 50W+50W

Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to

"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,

communication device, office equipment, industrial equipment etc.). The products mentioned herein shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life, aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system, safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any guarantee thereof. If you should intend to use our products for applications outside the standard applications of our customer who is considering such use and/or outside the scope of our intended standard applications, please consult with us prior to the intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely responsible for the use.

Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the

customer device, the customer should always evaluate and test devices mounted in the customer equipment.

s products or equipment. To verify symptoms and states that cannot be evaluated in an independent

sproductsor

O2109HKIM No. A1487-1/11

STK433-060-E

Specifications

Absolute Maximum Ratings at Ta = 25°C (excluding rated temperature items), Tc=25°C unless otherwise specified

Parameter Symbol Conditions Ratings Unit Maximum quiescent supply voltage 0 VCC max (0) When no signal Maximum supply voltage 1 VCC max (1) RL≥6Ω Maximum supply voltage 2 VCC max (2) RL=4Ω Minimum operating supply voltage VCC min Pin 13 input voltage VST max Thermal resistance θj-c Per power transistor Junction temperature Tj max Both the Tj max and Tc max conditions must be met. IC substrate operating temperature Tc max Storage temperature Tstg Allowable load shorted time *4 ts VCC=±27V, RL=6Ω, f=50Hz, PO=35W,

1-channel active

Operating Characteristics at Tc=25°C, R

=6Ω, Rg=600Ω, VG=30dB, non-inductive load RL, unless otherwise

specified

Conditions *2 Ratings

Parameter Symbol

Output power *1

Total harmonic distortion *1

Frequency characteristics *1 fL, fH Input impedance ri Output noise voltage *3 VNO Quiescent current I Standby current I Output neutral voltage VN Pin 13 voltage when standby

ON Pin 13 voltage when standby OFF

PO (1) PO (2) PO (3) THD (1) THD (2)

CCO CST

VST ON

VST OFF

VCC

(V)

±27 20 to 20k 0.4 33 35 ±27 1k 10 50 ±22 1k 1 RL=4Ω 35 ±27 20 to 20k 0.4 ±27 1k ±27 1.0 +0 -3dB 20 to 50k Hz ±27 1k 1.0 55 kΩ ±33 Rg=2.2kΩ 1.0 mVrms ±33 No loading 20 45 70 mA ±33 1 mA ±33 -70 0 +70 mV

±27 Standby 0.6 V

±27 Operating 2.5 V

(Hz)

PO (W)

5.0

THD

(%)

min typ max

0.02

[Remarks] *1: For 1-channel operation *2: Unless otherwise specified, use a constant-voltage power supply to supply power when inspections are carried out. *3: 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. *4: Use the transformer power supply circuit shown in the figure below for allowable load shorted time measurement. *5: Please connect -preVCC Pin (#1 pin) with the stable minimum voltage and connect so that current does not flow in

by reverse bias. * Thermal design must be implemented based on the conditions under which the customer’s end products are expected

to operate on the market.

* A thermoplastic adhesive is used to adhere the case.

±46 V ±40 V ±33 V ±10 V

-0.3 to +5.5 V

3.5 °C/W 150 °C 125 °C

-30 to +125 °C

0.3 s

unit

Designated transformer power supply (MG-200 equivalent)

DBA40C

10000μF

500Ω

-V

No. A1487-2/11

Package Dimensions

unit:mm (typ)

47.0

41.2

5.0

115

3.6

(6.6)

2.0 14 2.0=28.0

0.5

Internal Equivalent Circuit

(R1.8)

12.8

STK433-060-E

9.0

25.6

17.6

4.0

0.4

2.9

5.5

Pre Driver

CH1

Bias Circuit

1 2

SUB

Pre Driver

CH2

No. A1487-3/11

Application Circuit Example

Ch1

-VCC

-PRE

2 3 4

+VCC

100Ω

OUT

0.22Ω

56kΩ

Ch1

OUT

3pF

+VCC

100μF

GND

100μF

/50V

100μF

/50V

100Ω/1W

-VCC

Sample PCB Trace Pattern

STK433-060-E

Ch1

Ch2

OUT

Ch2

OUT

SUB GND+PRE

Ch1

6 7 8 9 10 11 12 13 141 15

0.22Ω 100pF

56kΩ

3pF

100μF

/50V

10μF /10V

SUB.GND

ST-BY

1.8kΩ

Ch2

100pF

1.8kΩ

10μF

/10V

Ch2

Stand-by Control

2.2μF /50V

56kΩ 56kΩ

3μH

4.7Ω

3μH

4.7Ω

2.2μF /50V

470pF

1kΩ

0.1μF

4.7Ω/1W

0.1μF

1kΩ

Ch2 IN

GND

Ch1 IN

Ch2 OUT

GND

Ch1 OUT

No. A1487-4/11

+ 7 hidden pages