PRODUCT INFORMATION
Vol.184 Class D Amplifier Modules with Built-in Controller Developed
New devices implement 100 to 200 W ×2 channels in a single package SANYO has developed the STK428-600 ries of class D amplifier modules that integrate a 100 to 200 W by two-channel audio power amplifier in a single package. The devices feature superb audio quality and a previously unavailable high efficiency. Sample shipment will begin in December 2004.
STK428-600 Series
Overview
Within the current trend towards the increasing u of digital technology in all types of audio and video equipment, the shift to digital is advancing in the power amplifier as well and thus there are increasing market needs for the ability to provide fully digital systems. In the class D amplifier, which is a digital processing power amplifier, the power loss due to heat generation during speaker drive, can be reduced to an extremely low level, about 10% of that of conventional analog amplifiers. As a result, the heat sinks that were indispensable in analog amplifiers have become nearly superfluous, and u of thi
s technique can achieve both end product miniaturization and significantly lower power. Furthermore, design flexibility is incread as well. Thus this technology is en as having the poten-tial to revolutionize audio and video equipment.
SANYO has now, under a comprehensive tie-up with Bang & Olufn ICEpower a/s, organically com-bined SANYO's audio miconductor system know-how with the Bang & Olufn ICEpower a/s developed signal modulation and signal feedback technologies, which are unique class D amplifier technologies. This has allowed SANYO to develop the STK428-600 ries of superb audio quality class D amplifier modules that achieve a previously unknown high efficiency.
The STK428-600 ries modules integrate a controller IC, a half-bridge driver IC to drive the power device, power MOSFETs, and a bootstrap circuit to drive the high side MOSFETs and can implement a class D power amplifier with a minimum number of external components. Since all the internal miconductor devices are mounted as bare chips, the STK428-600 ries can be provided in a miniature package: a 28-pin SIP measuring a mere 78 ×320 ×9 mm. The modules are optimal for end products that want to take advantage of the merits of miniaturization and light weight afforded by the class D amplifier technology. The STK428-600 ries consists of three products: the 100 W by 2-channel STK428-610, the 150 W by 2-channel STK428-630, and the 200 W by 2-channel STK428-6抓鱼游戏
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Since class D amplifier operation can influence audio performance depending on the layout of compo-nents and the wiring pattern on the printed circuit board, SANYO is prepared to support STK428-600 ries customers with advice during customer's PCB design pha, provision of external synchroniza-tion and BTL applications, and other support for circuits related to the hybrid ICs.
Features
•Output power: 100, 150, and 200 W (RL = 4 Ω), two channels (parate outputs)
•Full complement of built-in protection circuits. Low voltage and overvoltage protection circuit for the power stage supply voltage, load short protection circuit, and thermal protection circuit.•Bus signals can be shared when multiple hybrid ICs are ud for multichannel systems (standby signal, overcurrent signal, and excessive temperature detection signal)
你人真好•Extremely high design flexibility due to the miniature package. The devices can also contribute to end product miniaturization.
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•High efficiency: output power efficiencies of 95% (8 Ω, 100 W) and 89% (4 Ω, 100 W) Specifications
Outputs: 100 W, 150 W, 200 W × 2 channels (4 Ω, THD = 10%)
Supply voltage: ±28 V, ±33 V, ±40 V
Predriver block supply voltage: VS + 10 V
Controller supply voltage: ±5 V
Operating IC substrate temperature: +105˚C maximum
Package: SIP28 (78 mm ×32 mm ×9 mm)
爱眼护眼小口诀Applications
DVD players, A V receivers, home theater systems, active speakers
SANYO Electric Co., Ltd. Semiconductor Company Sales & Marketing Division
Sample Availability
The STK428-600 ries will be available in sample quantities in December 2004 and in production quantities in the first quarter of 2005.
NOVEMBER 17, 2004 s Any and all SANYO 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 who failure can be reasonably expected to result in rious
physical and/or material damage. Consult with your SANYO reprentative nearest you before using
any SANYO products described or contained herein in such applications.
s SANYO 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 products described or contained
herein.
s Specifications of any and all SANYO products described or contained herein stipulate the performance, characteristics,and functions of the described products in the independent state,and are not guarantees孤鸿寡鹄
of the performance, characteristics, and functions of the described products as mounted in the customer’s
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer’s products or equipment.
s SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all miconductor products fail with some probability. It is possible that the probabilistic failures could
give ri to accidents or events that could endanger human lives, that could give ri to smoke or fire,
or that could cau damage to other property. When designing equipment, adopt safety measures so
that the kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
s In the event that any or all SANYO products (including technical data, rvices) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must
not be exported without obtaining the export licen from the authorities concerned in accordance with the
above law.
s No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwi, without the prior written permission of SANYO Electric Co., Ltd.
s Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the “Delivery Specification”
for the SANYO product that you intend to u.
s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its u or any infringements of intellectual property rights
or other rights of third parties.
SANYO Electric Co., Ltd. Semiconductor Company Sales & Marketing Division
PS.N1704/184
