LA4628_08 SANYO [Sanyo Semicon Device], LA4628_08 Datasheet

LA4628_08

Manufacturer Part Number

LA4628_08

Description

For General Audio 20W 2-Channel BTL Power Amplifier

Manufacturer

SANYO [Sanyo Semicon Device]

Datasheet

1.LA4628_08.pdf (8 pages)

Current page: 1 of 8
Download datasheet (132Kb)

Ordering number : EN6632A

LA4628

Overview

Features

Specifications

Maximum Ratings at Ta = 25°C

Maximum supply voltage

Maximum output current

Allowable power dissipation

Operating temperature

Storage temperature

The LA4628 is a 2-channel general-purpose BTL audio power amplifier provided in a miniature package. It was designed

for the best possible audio quality and features an extended low band roll-off frequency provided by a newly-developed NF

circuit that does not require an external capacitor. Furthermore, crosstalk, which can cause muddiness in the audio output,

has been significantly reduced by both circuit and wiring pattern improvements. Thus this amplifier can provide powerful

lows and clear highs.

Note that this device is pin compatible with the 13.5W×2-channel LA4625, and allows end products differentiated by their

power rating to share the same printed circuit board.

• Total output : 20W+20W (at V CC = 13.5V, R L = 4Ω, THD = 10%)

• High-fidelity design (f L < 10Hz, f H = 130kHz)

• Extremely low impulse noise levels

• An arbitrary amplifier startup time can be set up with external components.

• Full complement of built-in protection circuits (includes circuits that protect against shorting to V CC , shorting to ground,

load shorting, overvoltages and excessive temperatures)

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

Parameter

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

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

Monolithic Linear IC

For General Audio

20W 2-Channel BTL Power Amplifier

V CC max

I O peak

Pd max

Topr

Tstg

Symbol

No signal

Per channel

With an arbitrarily large heat sink

Conditions

O0808 MS JK/92900RM(OT) No.6632-1/8

Ratings

s products or

-40 to +150

-20 to +85

32.5

Unit

°C

Related parts for LA4628_08

LA4628_08 Summary of contents

Page 1

Ordering number : EN6632A Monolithic Linear IC LA4628 For General Audio 20W 2-Channel BTL Power Amplifier Overview The LA4628 is a 2-channel general-purpose BTL audio power amplifier provided in a miniature package. It was designed for the best possible audio ...

Page 2

Operating Conditions 25°C Parameter Recommended supply voltage Recommended load resistance range Allowable operating supply voltage range Note : With and the output level in ranges such that the Pd max for ...

Page 3

Block Diagram C2 100µF/16V + 2 RIPPLE FILTER 2.2µF – 10V PRE GND 3 BIAS CIRCUIT R1 ON 10KΩ 4 STANDBY OFF SW Standby +5V SW IN2 2.2µF – 10V ...

Page 4

Pin Voltages 13.5V, with 5V applied to STBY through a 10kΩ resistor 4Ω Pin No. 1 Pin name IN1 Pin voltage 1.55V Pin No. 8 Pin name +OUT2 -OUT2 Pin voltage ...

Page 5

Impulse noise improvements • While the LA4628 achieves a low level of impulse noise, if even further reductions in impulse noise at power on/off (and when switching into or out of standby mode) a 0.47µF capacitor may be inserted ...

Page 6

Supply voltage THD = 10% 20 THD = ...

Page 7

100 1k 10k Signal source resistance Ω SVRR -- -20 -40 100Hz ...

Page 8

SANYO Semiconductor Co.,Ltd. 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 ...

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